{"id":9313,"date":"2025-08-02T08:51:33","date_gmt":"2025-08-02T00:51:33","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9313"},"modified":"2026-07-03T09:32:01","modified_gmt":"2026-07-03T01:32:01","slug":"420-stainless-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/420-stainless-steel\/","title":{"rendered":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 | 1.2083 | 2Cr13"},"content":{"rendered":"<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"337\" class=\"wp-block-cover__image-background wp-image-7233 size-large\" alt=\"\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp\" data-object-fit=\"cover\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1024x337.webp 1024w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-300x99.webp 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-768x253.webp 768w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-1536x506.webp 1536w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3-18x6.webp 18w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/05\/banner3.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#4e4b40\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<h1 id=\"h-420-stainless-steel-1-2083-2cr13\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 | 1.2083 | 2Cr13<\/mark><\/h1>\n\n\n\n<h3 id=\"h-aobo-steel-trusted-global-tool-steel-supplier\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">AOBO STEEL \u2013 \uc2e0\ub8b0\ubc1b\ub294 \uae00\ub85c\ubc8c \uacf5\uad6c\uac15 \uacf5\uae09\uc5c5\uccb4<\/mark><\/h3>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">\uc9c0\uae08 \ubc14\ub85c \ubb38\uc758\ud558\uc138\uc694<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aobosteel.com\/ko\/420-stainless-steel\/\"><\/a><\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">AISI 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c, \ucca0-\ud06c\ub86c \ud569\uae08\uc758 \uc77c\uc885\uc785\ub2c8\ub2e4. 400 \uc2dc\ub9ac\uc988 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ubd84\ub958\uc5d0 \uc18d\ud558\uba70, \ub2e4\ub978 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc\ub294 \ub2ec\ub9ac \uc790\uc131\uc744 \ub755\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"1-eael-table-of-content\" class=\"wp-block-heading\">1. \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc2dd\uae30\ub958 \ubc0f \ub0a0\uce74\ub85c\uc6b4 \ub3c4\uad6c&nbsp;<\/li>\n\n\n\n<li>\uc758\ub8cc \ubc0f \uc218\uc220 \uae30\uad6c&nbsp;<\/li>\n\n\n\n<li>\ud50c\ub77c\uc2a4\ud2f1 \uae08\ud615 \ubc0f \uae08\ud615 \ub3c4\uad6c&nbsp;<\/li>\n\n\n\n<li>\ubc38\ube0c \ubc0f \ud38c\ud504 \ubd80\ud488&nbsp;<\/li>\n\n\n\n<li>\uae30\uc5b4, \ucd95 \ubc0f \ub864\ub7ec&nbsp;<\/li>\n\n\n\n<li>\uc0b0\uc5c5 \ubc0f \ub0b4\ub9c8\ubaa8\uc131 \uc751\uc6a9 \ubd84\uc57c&nbsp;<\/li>\n\n\n\n<li>\ucef5 \ubc0f \uae30\ud0c0 \uc131\ud615 \ubd80\ud488&nbsp;<\/li>\n\n\n\n<li>\ubb38\uc7a5&nbsp;<\/li>\n\n\n\n<li>\uae30\ud0c0 \uc6a9\ub3c4: \uc2a4\ud504\ub9c1, \uc218\uacf5\uad6c, \uc790\uc11d, \ud328\uc2a4\ub108, \uae30\uacc4 \ubd80\ud488, \ud504\ub808\uc2a4 \ud50c\ub808\uc774\ud2b8, \uc790\ub3d9\ucc28 \ubc30\uae30 \ubd80\ud488, \uae08\uc18d\ud310\uc5d0 \ubbf8\uc138 \ud328\ud134\uc744 \uc815\ubc00\ud558\uac8c \ucc9c\uacf5\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uae08\ud615, \uac00\uc804\uc81c\ud488 \ubc0f \uc2dd\uae30\ub958.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"2-eael-table-of-content\" class=\"wp-block-heading\">2. 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uad6c\uc131<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\uc694\uc18c<\/td><td>\ud0c4\uc18c(C)<\/td><td>\ub9dd\uac04(Mn)<\/td><td>\uc2e4\ub9ac\ucf58(Si)<\/td><td>\uc778(P)<\/td><td>\ud669(S)<\/td><td>\ud06c\ub86c(Cr)<\/td><\/tr><tr><td>\uad6c\uc131&nbsp;<\/td><td>0.15- 0.40%<\/td><td>\u2264 1.00%<\/td><td>\u2264 0.50%<\/td><td>\u2264 0.040%<\/td><td>\u2264 0.030%<\/td><td>12.00 \u2013 14.00%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"3-eael-table-of-content\" class=\"wp-block-heading\">3. 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud2b9\uc131<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"><strong>\uacbd\ub3c4 \ubc0f \ub0b4\ub9c8\ubaa8\uc131:&nbsp;<\/strong>\uc801\uc808\ud55c \uc5f4\ucc98\ub9ac\ub97c \uac70\uce58\uba74 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 46~52 HRC\uc758 \uacbd\ub3c4\ub97c \uac16\uac8c \ub429\ub2c8\ub2e4.<\/span> \uc774\ub7ec\ud55c \uacbd\ub3c4 \ub355\ubd84\uc5d0 \ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0b4\uc2dd\uc131\uc774 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub0b4\uc2dd\uc131:<\/strong>&nbsp;AISI 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0 \ud568\uc720\ub41c \ud06c\ub86c\uc740 \ud45c\uba74\uc744 \ubcf4\ud638\ud558\ub294 \ubd80\ub3d9\ud0dc\ud654\uce35\uc744 \ud615\uc131\ud558\uc5ec \uc628\ud654\ud55c \ub300\uae30 \ud658\uacbd, \uac00\uc815 \ud658\uacbd \ubc0f \uc0b0\uc5c5 \ud658\uacbd\uc5d0\uc11c \ub6f0\uc5b4\ub09c \ub0b4\uc2dd\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc5f0\ub9c8 \uac00\ub2a5\uc131:&nbsp;<\/strong>\uc774 \ub4f1\uae09\uc740 \uc5f0\ub9c8\uc131\uc774 \ub6f0\uc5b4\ub098 \ud50c\ub77c\uc2a4\ud2f1 \uc0ac\ucd9c \uae08\ud615 \ubc0f \uad11\ud559 \ubd80\ud488\uacfc \uac19\uc774 \uace0\ud488\uc9c8 \ud45c\uba74 \ub9c8\uac10\uc774 \uc694\uad6c\ub418\ub294 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc778\uc131 \ubc0f \uc6a9\uc811\uc131:&nbsp;<\/strong>\ud0c4\uc18c \ud568\ub7c9\uc774 \uc800\ud0c4\uc18c\uac15\ubcf4\ub2e4 \ub192\uc544 \uacbd\ub3c4\ub294 \ub192\uc9c0\ub9cc \uc778\uc131\uc740 \ub0ae\uc2b5\ub2c8\ub2e4. \ub610\ud55c \ud0c4\uc18c \ud568\ub7c9\uc774 \ub192\uc544 \uc6a9\uc811\uc131\uc774 \uc88b\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc6a9\uc811\uc774 \ud544\uc694\ud55c \uacbd\uc6b0 \uc0c1\ub2f9\ud55c \uc608\uc5f4\uacfc \uc6a9\uc811 \ud6c4 \uc5f4\ucc98\ub9ac(\uc608: \uc5f4\ucc98\ub9ac)\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.&nbsp;<em>\uac00\uc5f4 \ub0c9\uac01<\/em>\uade0\uc5f4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574\uc11c\ub294 \ud2b9\uc218 \uc6a9\uc811\ubd09(\uc608: ERNiCr-3)\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc885\uc885 \ud544\uc694\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc774\ub294 \uc6a9\uc811 \ubd80\uc704\uc758 \ucd5c\uc885 \uac15\ub3c4\uc640 \uacbd\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uac00\uacf5\uc131:&nbsp;<\/strong>\uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c 420\uac15\uc740 \ube44\uad50\uc801 \uc6b0\uc218\ud55c \uac00\uacf5\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ubcf4\ub2e4 \ubcf5\uc7a1\ud55c \uac00\uacf5\uc774 \uc694\uad6c\ub418\ub294 \uc6a9\ub3c4\uc5d0\ub294 \ucf8c\uc0ad\uc131 \ubcc0\ud615\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.,<strong>&nbsp;420F<\/strong>&nbsp;(\ud669\uc744 \ucca8\uac00\ud55c) \uc81c\ud488\uc774 \uc2dc\ud310\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud669\uc744 \ucca8\uac00\ud558\uba74 \ub178\uce58 \uc778\uc131\uc774 \uc57d\uac04 \uac10\uc18c\ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc5d0 \uc720\uc758\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns has-ast-global-color-8-background-color has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"764\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif\" alt=\"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\" class=\"wp-image-9160\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif 764w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-12x12.avif 12w\" sizes=\"auto, (max-width: 764px) 100vw, 764px\" \/><figcaption class=\"wp-element-caption\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>AISI 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0 \uad00\uc2ec \uc788\uc73c\uc2e0\uac00\uc694?<\/strong> <strong>\uc9c0\uae08 \ubc14\ub85c \uc5f0\ub77d\ud558\uc2dc\ub824\uba74 \uc544\ub798 \uc591\uc2dd\uc744 \uc791\uc131\ud574 \uc8fc\uc138\uc694!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16042-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"16042\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ko\/wp-json\/wp\/v2\/pages\/9313#wpcf7-f16042-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\ubb38\uc758 \uc591\uc2dd\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/ko\/wp-json\/wp\/v2\/pages\/9313#wpcf7-f16042-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16042\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.6\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16042-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" autocomplete=\"name\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"\uc774\ub984 *\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" autocomplete=\"email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"\uc774\uba54\uc77c *\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n<\/p>\n<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"4\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"\uba54\uc2dc\uc9c0 *\" name=\"your-message\"><\/textarea><\/span>\n<\/p>\n<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"\ubb38\uc758 \ubcf4\ub0b4\uae30\" \/>\n<\/p><p style=\"display: none !important;\" class=\"akismet-fields-container\" data-prefix=\"_wpcf7_ak_\"><label>\u0394<textarea name=\"_wpcf7_ak_hp_textarea\" cols=\"45\" rows=\"8\" maxlength=\"100\"><\/textarea><\/label><input type=\"hidden\" id=\"ak_js_1\" name=\"_wpcf7_ak_js\" value=\"76\"\/><script>\ndocument.getElementById( \"ak_js_1\" ).setAttribute( \"value\", ( new Date() ).getTime() );\n<\/script>\n<\/p><input type='hidden' class='wpcf7-pum' value='{\"closepopup\":false,\"closedelay\":0,\"openpopup\":true,\"openpopup_id\":16052}' \/><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"ko\"\/><\/form>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 id=\"4-eael-table-of-content\" class=\"wp-block-heading\">4. \uc5f4\ucc98\ub9ac<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \ud3ec\ud568\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ubcc0\ud0dc \uc628\ub3c4 \uc774\uc0c1\uc73c\ub85c \uac00\uc5f4\ud558\uc5ec \uc644\uc804\ud55c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uad6c\uc870\ub97c \uc5bb\uc740 \ud6c4 \uc624\uc77c\uc774\ub098 \uacf5\uae30 \uc911\uc5d0\uc11c \uae09\uc18d \ub0c9\uac01\ud558\uc5ec \uacbd\ud654\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uac15\uc131\uc740 \uc5f4\uc804\ub3c4\uc728\uc774 \ub0ae\uc544 \uae09\uc18d \uac00\uc5f4 \ub610\ub294 \uae09\ub7ad \uc2dc \uac00\uc5f4\uc774 \uace0\ub974\uc9c0 \uc54a\uac8c \ub418\uc5b4 \ubcc0\ud615, \ub4a4\ud2c0\ub9bc \ub610\ub294 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc608\uc5f4\uc744 \uac15\ub825\ud788 \uad8c\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub9cc\ud07c&nbsp;<em>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc5f4\ucc98\ub9ac<\/em>&nbsp;\uc774 \uacf5\uc815\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654, \ub2f4\uae08\uc9c8, \uadf8\ub9ac\uace0 \ud15c\ud37c\ub9c1\uc744 \uac70\uccd0 \uae30\uacc4\uc801 \ud2b9\uc131, \ud2b9\ud788 \uc5f0\uc131\uacfc \uc778\uc131\uc744 \ucd5c\uc801\ud654\ud558\ub294 \uac83\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"5-eael-table-of-content\" class=\"wp-block-heading\">4.1 \uacbd\ud654(\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">420\uac15\uc758 \uacbd\ud654 \uc628\ub3c4\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.&nbsp;<strong>975\u00b0C ~ 1075\u00b0C (1787\u00b0F ~ 1967\u00b0F)<\/strong>, \uc77c\ubd80 \uc790\ub8cc\uc5d0\uc11c\ub294 954\u00b0C~1010\u00b0C(1750\u00b0F~1850\u00b0F)\ub85c \ud45c\uae30\ud558\uae30\ub3c4 \ud558\uc9c0\ub9cc, \uc800\ud76c \uacbd\ud5d8\uc0c1 \uc804\uc790\uc758 \ubc94\uc704\uac00 \ub354 \uc801\uc808\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2f4\uadf8\ub294 \uc2dc\uac04\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.&nbsp;<strong>\ub450\uaed8 1\uc778\uce58\ub2f9 30\ubd84(1mm\ub2f9 1.2\ubd84)<\/strong>&nbsp;\uacbd\ud654 \uc628\ub3c4\uc5d0\uc11c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud0c8\ud0c4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc81c\uc5b4\ub41c \uc911\uc131 \ubd84\uc704\uae30, \uc9c4\uacf5 \ub610\ub294 \uc911\uc131\uc5fc\ub85c\uc5d0\uc11c \uacbd\ud654\uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 id=\"6-eael-table-of-content\" class=\"wp-block-heading\">4.2 \ub2f4\uae08\uc9c8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcf5\uc7a1\ud558\uac70\ub098 \ubd88\uaddc\uce59\ud55c \ud615\uc0c1\uc758 \uac00\uacf5\ud488\uc758 \uacbd\uc6b0, \ubcc0\ud615\uc744 \ucd5c\uc18c\ud654\ud558\uace0 \uade0\uc5f4 \uc704\ud5d8\uc744 \uc904\uc774\uae30 \uc704\ud574 \uacf5\uae30 \ub2f4\uae08\uc9c8\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4. \ub354 \ub192\uc740 \uacbd\ub3c4\uac00 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uc5d0\ub294 \uc720\ub0c9\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \uacfc\uc815\uc740 \uc7ac\ub8cc\ub97c \ub0c9\uac01\uc2dc\ud0a4\ub294 \uac83\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4.&nbsp;<strong>66\u00b0C (150\u00b0F)<\/strong>&nbsp;\uacf5\uae30 \ub0c9\uac01 \uc2dc, \ub610\ub294&nbsp;<strong>66-93\u00b0C (150-200\u00b0F)<\/strong>&nbsp;\uc624\uc77c\uc5d0 \ub2f4\uae08\uc9c8\ud588\uc744 \ub54c.&nbsp;<strong>\ub2f4\uae08\uc9c8 \uc9c1\ud6c4\uc5d0 \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \ud574\uc57c \ud55c\ub2e4\ub294 \uc810\uc5d0 \uc720\uc758\ud574 \uc8fc\uc2ed\uc2dc\uc624.<\/strong><\/p>\n\n\n\n<h3 id=\"7-eael-table-of-content\" class=\"wp-block-heading\">4.3&nbsp;<strong>\ub2f4\uae08\uc9c8<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\ub2f4\uae08\uc9c8<\/em>&nbsp;420\uac15\uc758 \uc778\uc131\uacfc \uac15\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0a4\uace0 \uacbd\ub3c4\ub97c \uc870\uc808\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 420\uac15 \uc18c\uc7ac\ub294 \ucd5c\uc18c\ud55c \ub2e4\uc74c \ub2e8\uacc4\ub97c \uac70\uccd0\uc57c \ud569\ub2c8\ub2e4.<strong>&nbsp;\ub450 \ubc88\uc758 \ud15c\ud37c\ub9c1 \uc0ac\uc774\ud074<\/strong>, \ub610\ub294 3\uae4c\uc9c0\ub3c4 \uac00\ub2a5\ud569\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0 \ucd5c\uc18c \uc5f4\ucc98\ub9ac \uc628\ub3c4\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.&nbsp;<strong>204\u00b0C (400\u00b0F)<\/strong>. \ub2f4\uadf8\ub294 \uc2dc\uac04\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.&nbsp;<strong>\ub450\uaed8 1\uc778\uce58\ub2f9 2\uc2dc\uac04(1mm\ub2f9 4.7\ubd84)<\/strong>&nbsp;\uc9c0\uc815\ub41c \uc628\ub3c4\uc5d0\uc11c \ucc98\ub9ac\ud569\ub2c8\ub2e4. \uac01 \ud15c\ud37c\ub9c1 \uc8fc\uae30 \uc0ac\uc774\uc5d0\ub294 \ubd80\ud488\uc744 \uc790\uc5f0\uc801\uc73c\ub85c \uc2e4\uc628\uae4c\uc9c0 \uc2dd\ud600\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5f4\ucc98\ub9ac \uc628\ub3c4\uac00 \ubb3c\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\ub2e4\uc591\ud55c \uc5f4\ucc98\ub9ac \uc628\ub3c4 \ud6c4\uc758 \uacbd\ub3c4<\/strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 149\u00b0C(300\u00b0F)\uc5d0\uc11c \ucd5c\uc18c \uacbd\ub3c4 52 HRC, 204\u00b0C(400\u00b0F)\uc5d0\uc11c 50 HRC, 316\u00b0C(600\u00b0F)\uc5d0\uc11c 48 HRC\ub97c \uac16\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ud15c\ud37c \ucde8\uc131 \ubc0f \ubd80\uc2dd \uc800\ud56d\uc131<\/strong>\uc608: 420\uac15\uc740 \ud15c\ud37c\ub9c1 \ucde8\uc131\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.&nbsp;<strong>427\u00b0C(800\u00b0F) \uc774\uc0c1\uc758 \uc628\ub3c4\uc5d0\uc11c \uac00\uc5f4\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/strong>, \uc774 \uc628\ub3c4 \ubc94\uc704\uc5d0\uc11c\ub294 \ucda9\uaca9 \uac15\ub3c4\uc640 \ub0b4\uc2dd\uc131\uc774 \ud06c\uac8c \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc800\ud558\ub294 \ub354 \ud070 \ud06c\ub86c \uce74\ubc14\uc774\ub4dc(Cr23C6)\uc758 \uc11d\ucd9c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud558\uba70, \uc774\ub85c \uc778\ud574 \uce74\ubc14\uc774\ub4dc \uc8fc\ubcc0\uc5d0 \ud06c\ub86c \uacb0\ud54d \uc601\uc5ed\uc774 \ud615\uc131\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc740 \ud15c\ud37c\ub9c1 \uc628\ub3c4\uac00 593\u00b0C(1100\u00b0F) \uc774\uc0c1\uc774 \ub418\uba74 \uc0ac\ub77c\uc9d1\ub2c8\ub2e4. 600\u00b0C \uc774\uc0c1\uc758 \uc628\ub3c4\uc5d0\uc11c\ub294 \ud06c\ub86c \ud655\uc0b0\uc73c\ub85c \uc778\ud574 \uc774\ub7ec\ud55c \uacb0\ud54d \uc601\uc5ed\uc774 &quot;\ubcf5\uad6c&quot;\ub418\uc5b4 \ub0b4\uc2dd\uc131\uc774 \ud68c\ubcf5\ub418\ub294 \uac83\uc73c\ub85c \uc5ec\uaca8\uc9d1\ub2c8\ub2e4. \uc774 \uc628\ub3c4 \ubc94\uc704\uc5d0\uc11c 420\uc758 \uc778\uc131\uc740 \uc99d\uac00\ud558\uc9c0\ub9cc \uacbd\ub3c4\ub294 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n\n\n\n<h3 id=\"8-eael-table-of-content\" class=\"wp-block-heading\">4.4 \uc751\ub825 \uc81c\uac70 (\ubbf8\uacbd\ud654 \uc7ac\ub8cc)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uacbd\ud654\ub418\uc9c0 \uc54a\uc740 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ubd80\ud488\uc758 \uacbd\uc6b0, \uc751\ub825 \uc81c\uac70\ub294 \ucc9c\ucc9c\ud788 \uac00\uc5f4\ud568\uc73c\ub85c\uc368 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.&nbsp;<strong>677\u00b0C(1250\u00b0F)\uc5d0\uc11c \ub450\uaed8 1\uc778\uce58\ub2f9 2\uc2dc\uac04 \ub3d9\uc548 \ub2f4\uadf8\uae30<\/strong>, \uadf8 \ud6c4, \uc6a9\uad11\ub85c \uc548\uc5d0\uc11c \ucc9c\ucc9c\ud788 \uc2e4\uc628\uae4c\uc9c0 \uc2dd\ud799\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 id=\"9-eael-table-of-content\" class=\"wp-block-heading\">5. \ub3d9\ub4f1 \ub4f1\uae09<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JIS(\uc77c\ubcf8):<\/strong>SUS420J1, SUS420J2<\/li>\n\n\n\n<li><strong>DIN(\ub3c5\uc77c):<\/strong>4021, 1.4028, 1.2083 (X42Cr13 \u2013 \uc8fc\ud615\uc5d0 \uc790\uc8fc \uc0ac\uc6a9\ub428)<\/li>\n\n\n\n<li><strong>GB(\uc911\uad6d):<\/strong>&nbsp;<em>2Cr13<\/em> \uadf8\ub9ac\uace0 <em>4Cr13<\/em>.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"10-eael-table-of-content\" class=\"wp-block-heading\">6. 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \ub2e4\ub978 \uac15\ucca0\uacfc \ube44\uad50\ud558\uc2ed\uc2dc\uc624.<\/h2>\n\n\n\n<h3 id=\"11-eael-table-of-content\" class=\"wp-block-heading\">6.1 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 vs 304<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">420\uac15\uc740 \ub2e8\ub2e8\ud558\uace0 \uac15\ud558\uba70 \ub0b4\ub9c8\ubaa8\uc131\uc774 \ub6f0\uc5b4\ub09c \uc790\uc131 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \ud569\uae08\uc73c\ub85c, \uc5f4\ucc98\ub9ac \ud6c4 \uace0\uc131\ub2a5\uc774 \uc694\uad6c\ub418\ub294 \uc6a9\ub3c4\uc5d0 \uac00\uc7a5 \uc801\ud569\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ucd5c\uc801\uc758 \ub0b4\uc2dd\uc131\uc744 \uc704\ud574\uc11c\ub294 \uc6a9\uc811 \ubc0f \ud15c\ud37c\ub9c1 \uacfc\uc815\uc5d0\uc11c \uc138\uc2ec\ud55c \ucde8\uae09\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ubc18\uba74 304\uac15\uc740 \uc5f0\uc131\uc774 \uc88b\uace0 \uc131\ud615\uc131\uc774 \uc6b0\uc218\ud558\uba70 \uc77c\ubc18\uc801\uc73c\ub85c \ube44\uc790\uc131\uc778 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \ud569\uae08\uc73c\ub85c, \ub6f0\uc5b4\ub09c \ub0b4\uc2dd\uc131, \uc6a9\uc811\uc131, \uace0\uc628 \ud658\uacbd\uc744 \ud3ec\ud568\ud55c \uad11\ubc94\uc704\ud55c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud558\ub2e4\ub294 \uc7a5\uc810\uc73c\ub85c \ub192\uc774 \ud3c9\uac00\ubc1b\uace0 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\ud2b9\uc9d5<\/td><td>420<\/td><td>304<\/td><\/tr><tr><td>\ubd84\ub958<\/td><td>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8<\/td><td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4<\/td><\/tr><tr><td>\uc790\uc11d\uc778\uac00\uc694?<\/td><td>\uc608 (\uac15\uc790\uc131\uccb4)<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c \ube44\uc790\uc131(\uc5b4\ub2d0\ub9c1 \ucc98\ub9ac \uc2dc)<\/td><\/tr><tr><td>\uac15\ud654 \uac00\ub2a5?<\/td><td>\ub124, \uc5f4\ucc98\ub9ac(\ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1)\ub97c \ud1b5\ud574 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/td><td>\uc544\ub2c8\uc694, \ub0c9\uac04 \uac00\uacf5\uc73c\ub85c \uacbd\ud654\ub429\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ud0c4\uc18c \ud568\ub7c9<\/td><td>\ub354 \ub192\uc74c (0.15% \ucd5c\uc18c\uac12, \ud754\ud788 0.2-0.4%)<\/td><td>\ud558\ud55c(\ucd5c\ub300 0.08%)<\/td><\/tr><tr><td>\ub2c8\ucf08 \ud568\ub7c9<\/td><td>\ub9e4\uc6b0 \ub0ae\uac70\ub098 \uc5c6\uc74c<\/td><td>\uc720\uc758\ubbf8\ud55c (8-12%)<\/td><\/tr><tr><td>\ucd5c\ub300 \uacbd\ub3c4<\/td><td>\ud6e8\uc52c \ub354 \ub192\uc544\uc9d0 (\uc608: \uc5f4\ucc98\ub9ac \ud6c4 C-54\uc5d0\uc11c C-60\uc73c\ub85c)<\/td><td>\ub354 \ub0ae\uc740 (\ucd5c\ub300 B-92 \uc5b4\ub2d0\ub9c1)<\/td><\/tr><tr><td>\ubd80\uc2dd<\/td><td>\uc5f4\ucc98\ub9ac\uc5d0 \ub530\ub77c \ub2e4\ub974\uc9c0\ub9cc \ubcf4\ud1b5 \uc218\uc900\uc774\uba70, 304\ub3c4 \ubbf8\ub9cc\uc785\ub2c8\ub2e4.<\/td><td>\ud6cc\ub96d\ud558\uace0, &quot;\ucd5c\uace0\uc758 \ub9cc\ub2a5 \uc120\uc218&quot;\uc774\uba70, 420\ubcf4\ub2e4 \ub192\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc6a9\uc811\uc131<\/td><td>\uc6a9\uc811\ud558\uae30 \uc5b4\ub835\uc2b5\ub2c8\ub2e4<\/td><td>\uc6a9\uc811\uc131\uc774 \ub9e4\uc6b0 \uc6b0\uc218\ud568 (\ud2b9\ud788 304L)<\/td><\/tr><tr><td>\uac15\uc778\ud568<\/td><td>\ucda9\uaca9 \uac15\ub3c4\uac00 \ub0ae\uace0, \ub2f4\uae08\uc9c8\uc5d0 \uc758\ud55c \ucde8\uc131\uc5d0 \ucde8\uc57d\ud569\ub2c8\ub2e4.<\/td><td>\ub192\uc740 \uc5f0\uc131\uacfc \uc778\uc131<\/td><\/tr><tr><td>\uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4<\/td><td>\uc2dd\uae30\ub958, \uc218\uc220\uae30\uad6c, \uae08\ud615, \ucd95, \ubc38\ube0c<\/td><td>\uc2dd\ud488 \uac00\uacf5, \uac00\uc804\uc81c\ud488, \uc790\ub3d9\ucc28 \ubc30\uae30\uac00\uc2a4, \uc77c\ubc18 \uc6a9\ub3c4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"12-eael-table-of-content\" class=\"wp-block-heading\">6.2 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 vs 316<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">420\uac15\uc740 \uacbd\ud654\uc131 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c \ub192\uc740 \uac15\ub3c4, \uacbd\ub3c4 \ubc0f \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc9c0\ub2c8\uc9c0\ub9cc, \ub0b4\uc2dd\uc131\uc740 \ubcf4\ud1b5 \uc218\uc900\uc774\uba70 \uc5f4\ucc98\ub9ac\uc5d0 \ubbfc\uac10\ud569\ub2c8\ub2e4. \ubc18\uba74, 316\uac15\uc740 \ube44\uacbd\ud654\uc131 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c, \ud2b9\ud788 \uc5fc\ud654\ubb3c \ud658\uacbd\uc5d0\uc11c \ud0c1\uc6d4\ud55c \ub0b4\uc2dd\uc131\uc744 \ubcf4\uc774\uba70 \uacf5\uc2dd \ubc0f \ud2c8\uc0c8 \ubd80\uc2dd\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc774 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>\ud2b9\uc9d5<\/td><td>420<\/td><td>316&nbsp;<\/td><\/tr><tr><td>\ubd84\ub958<\/td><td>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8<\/td><td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4<\/td><\/tr><tr><td>\uac15\ud654\uc131<\/td><td>\uc5f4\ucc98\ub9ac\ub97c \ud1b5\ud574 50 HRC \uc774\uc0c1\uc73c\ub85c \uacbd\ud654\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td><td>\uc5f4\ucc98\ub9ac\ub85c\ub294 \uacbd\ud654\ub418\uc9c0 \uc54a\uc73c\uba70, \ub0c9\uac04 \uac00\uacf5\uc73c\ub85c\ub294 \uacbd\ud654\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uacbd\ub3c4<\/td><td>\uc5b4\ub2d0\ub9c1 \ucc98\ub9ac: \ub85c\ud06c\uc6f0 \uacbd\ub3c4 B-92. \uc5f4\ucc98\ub9ac \ucc98\ub9ac: \ub85c\ud06c\uc6f0 \uacbd\ub3c4 C-54.<\/td><td>\uc5f4\ucc98\ub9ac: \ub85c\ud06c\uc6f0 \uacbd\ub3c4 B-80 (\ucd5c\ub300 B-90).<\/td><\/tr><tr><td>\uc778\uc7a5 \uac15\ub3c4<\/td><td>\uc5b4\ub2d0\ub9c1 \ucc98\ub9ac \uc2dc: 95 ksi. \uc5f4\ucc98\ub9ac \ucc98\ub9ac \uc2dc: \ucd5c\ub300 250 ksi.<\/td><td>\uc5b4\ub2d0\ub9c1: 75 ksi (316), 70 ksi (316L).<\/td><\/tr><tr><td>\ud56d\ubcf5 \uac15\ub3c4<\/td><td>\uc5b4\ub2d0\ub9c1 \ucc98\ub9ac: 50ksi. \uc5f4\ucc98\ub9ac \ucc98\ub9ac: \ucd5c\ub300 200ksi.<\/td><td>\uc5b4\ub2d0\ub9c1: 30 ksi (316), 25 ksi (316L).<\/td><\/tr><tr><td>\uc5f0\uc131<\/td><td>\uc778\uc131\uc740 \uc88b\uc9c0\ub9cc, \uacbd\ub3c4\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uc5f0\uc131\uc740 \uac10\uc18c\ud569\ub2c8\ub2e4.<\/td><td>\uc800\uc628\uc5d0\uc11c\ub3c4 \ub6f0\uc5b4\ub09c \uc5f0\uc131\uacfc \ub192\uc740 \uc2e0\uc7a5\ub960\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\ub0b4\uc2dd\uc131<\/td><td>\ud488\uc9c8\uc740 \uc88b\uc9c0\ub9cc \uc77c\ubc18\uc801\uc73c\ub85c \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uac15\ucca0\ubcf4\ub2e4\ub294 \ub0ae\uc2b5\ub2c8\ub2e4. \ud15c\ud37c\ub9c1 \ucc98\ub9ac \uc2dc \ub0b4\uc5f4\uc131\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td><td>\ud2b9\ud788 \ubab0\ub9ac\ube0c\ub374 \ud568\uc720\ub85c \uc778\ud55c \uc810\uc2dd \ubc0f \ud2c8\uc0c8 \ubd80\uc2dd \ubc29\uc9c0 \ud6a8\uacfc\uac00 \ud0c1\uc6d4\ud569\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc6a9\uc811\uc131<\/td><td>\uc6a9\uc811\uc774 \uc5b4\ub835\uae30 \ub54c\ubb38\uc5d0 \uc6a9\uc811\uc774 \ud544\uc694\ud55c \uc6a9\ub3c4\uc5d0\ub294 \uad8c\uc7a5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td><td>\uc6a9\uc811\uc131\uc774 \uc6b0\uc218\ud558\uba70, \ud2b9\ud788 &#039;L&#039; \ub4f1\uae09(316L)\uc774 \uadf8\ub807\uc2b5\ub2c8\ub2e4.<\/td><\/tr><tr><td>\uc790\uae30\uc801 \ud2b9\uc131<\/td><td>\uac15\uc790\uc131\uccb4.<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c \ube44\uc790\uc131\uccb4\uc785\ub2c8\ub2e4(\ub0c9\uac04 \uac00\uacf5 \ud6c4 \uc57d\uac04\uc758 \uc790\uc131\uc744 \ub768 \uc218 \uc788\uc2b5\ub2c8\ub2e4).<\/td><\/tr><tr><td>\uc77c\ubc18\uc801\uc778 \uc751\uc6a9 \ubd84\uc57c<\/td><td>\uc2dd\uae30\ub958, \uc218\uc220\uae30\uad6c, \uae08\ud615, \ucd95, \ubc38\ube0c \ubd80\ud488.<\/td><td>\ud654\ud559 \uacf5\uc815, \ud574\uc591 \uc751\uc6a9 \ubd84\uc57c, \uac74\ucd95 \uc678\uc7a5\uc7ac, \uc758\ub8cc\uc6a9 \uc784\ud50c\ub780\ud2b8.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"764\" data-id=\"9160\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif\" alt=\"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\" class=\"wp-image-9160\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif 764w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-12x12.avif 12w\" sizes=\"auto, (max-width: 764px) 100vw, 764px\" \/><figcaption class=\"wp-element-caption\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" data-id=\"6063\" src=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/2Cr13-tool-steel.avif\" alt=\"2Cr13 \uacf5\uad6c\uac15\" class=\"wp-image-6063\" srcset=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/2Cr13-tool-steel.avif 500w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/2Cr13-tool-steel-300x300.avif 300w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/2Cr13-tool-steel-150x150.avif 150w, https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/04\/2Cr13-tool-steel-12x12.avif 12w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">2Cr12 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button popmake-16052\"><a class=\"wp-block-button__link wp-element-button\">\uc9c0\uae08 \ubc14\ub85c 420\/2Cr13 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0 \ub300\ud55c \ubb38\uc758\ub97c \ubcf4\ub0b4\uc8fc\uc138\uc694.<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"13-eael-table-of-content\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1755567391384\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c \uac00\uc7a5 \ud754\ud558\uac8c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. 410 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \uc720\uc0ac\ud55c \ub0b4\uc2dd\uc131\uc744 \uac00\uc9c0\uc9c0\ub9cc \uac15\ub3c4\uc640 \uacbd\ub3c4\uac00 \ub354 \ub192\uc2b5\ub2c8\ub2e4. \ub610\ud55c &quot;\uc2dd\uae30\ub958\uc6a9 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15&quot;\uc73c\ub85c\ub3c4 \ub110\ub9ac \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4.\u201c<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567393846\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc8fc\uc694 \ud2b9\uc131\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">\uc774 \uc18c\uc7ac\ub294 \uacbd\ub3c4\uac00 52-55 HRC(\uacbd\ud654 \ubc0f \uc751\ub825 \uc81c\uac70 \ucc98\ub9ac \uc2dc \ub85c\ud06c\uc6f0 C55)\uc774\uace0, \ubc00\ub3c4\ub294 0.280 lbs\/in\u00b3(7.74 g\/cm\u00b3)\uc774\uba70, \uc778\uc7a5 \uac15\ub3c4\ub294 275,000 psi(\uacbd\ud654 \ubc0f \uc751\ub825 \uc81c\uac70 \ucc98\ub9ac \uc2dc 230 ksi \ub610\ub294 1586 MPa)\uc785\ub2c8\ub2e4. \uc5b4\ub2d0\ub9c1 \ubc0f \uacbd\ud654 \ucc98\ub9ac \uc0c1\ud0dc \ubaa8\ub450\uc5d0\uc11c \uc790\uc131\uc744 \ub755\ub2c8\ub2e4. \ub610\ud55c, \uac00\uacf5\uc131\uc774 \uc6b0\uc218\ud558\uace0, \uacbd\ud654 \uac00\ub2a5\ud558\uba70, \uc5f0\ub9c8 \uac00\ub2a5\ud558\uace0, \uc870\uac74\ubd80\ub85c \ub0b4\uc0b0\uc131\uc744 \uac16\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567394643\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud654\ud559\uc801 \uc870\uc131\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">\uc774 \ubb3c\uc9c8\uc758 \ud654\ud559\uc801 \uad6c\uc131\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud0c4\uc18c(C) 0.15~0.36%(\ub610\ub294 \ucd5c\uc18c 0.15%, \uc77c\ubd80 \ubcc0\ud615\uc5d0\uc11c\ub294 \ucd5c\ub300 0.5%), \ud06c\ub86c(Cr) 12~14%, \uadf8\ub9ac\uace0 \uaddc\uc18c(Si)\uc640 \ub9dd\uac04(Mn)\uc774 \uac01\uac01 \ucd5c\ub300 1.0%\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4. \uc778(P)\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ucd5c\ub300 0.04%\uc774\uace0, \ud669(S)\uc740 \ucd5c\ub300 0.03%\uc785\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567395361\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ub179\uc774 \uc2ac\ub098\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ub0b4\uc2dd\uc131\uc774 \ub9e4\uc6b0 \ub6f0\uc5b4\ub0a9\ub2c8\ub2e4. \ub300\uae30, \ub2f4\uc218, \uc99d\uae30, \ud718\ubc1c\uc720, \uc54c\ucf54\uc62c, \ud608\uc561, \ub540, \uae30\ub984, \uc74c\uc2dd\ubb3c \ub4f1\uc73c\ub85c\ubd80\ud130 \ubc1c\uc0dd\ud558\ub294 \ubd80\uc2dd\uc5d0 \uac15\ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567396093\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc790\uc131\uc744 \ub760\ub098\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">\ub124, 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc790\uc11d\uc5d0 \ub04c\ub9ac\uba70, \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\uc640 \uacbd\ud654 \ucc98\ub9ac\ub41c \uc0c1\ud0dc \ubaa8\ub450\uc5d0\uc11c \uc790\uc131\uc744 \ub755\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567397185\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uacbd\ub3c4\ub294 52~55 HRC \ubc94\uc704\uc785\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567397961\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ub3d9\ub4f1\ud55c \uad6d\uc81c \ud45c\uc900\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 AISI 420, BS970 420S37, 420S45, DIN 1.4021, 1.4025, 1.4034, AFNOR Z30C13, Z40C14, JIS SUS 4200JI, 420J2 \ub4f1 \uc5ec\ub7ec \uad6d\uc81c \ud45c\uc900\uc5d0 \ubd80\ud569\ud569\ub2c8\ub2e4. \ub610\ud55c ASTM A176 \ubc0f AMS 5506 \uaddc\uaca9\uc5d0\ub3c4 \ud3ec\ud568\ub418\uba70, UNS \ubc88\ud638\ub294 S42000\uc785\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567398578\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">\uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4\ub85c\ub294 \ubca0\uc5b4\ub9c1 \uc81c\uc870, \ubc38\ube0c \ubd80\ud488, \ud638\uc2a4 \uc5f0\uacb0\uad6c \ubc0f \ubd80\uc18d\ud488 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc2dd\uae30\ub958, \uc218\uc220 \ubc0f \uce58\uacfc \uae30\uad6c, \uac00\uc704, \uc904\uc790, \uc790 \ub4f1\uc5d0\ub3c4 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub0b4\uc2dd\uc131\uacfc \ub192\uc740 \uacbd\ub3c4\uac00 \ubaa8\ub450 \uc694\uad6c\ub418\ub294 \uc6a9\ub3c4\uc5d0 \uc774\uc0c1\uc801\uc778 \uc18c\uc7ac\ub85c \uc5ec\uaca8\uc9d1\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567500191\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uce7c\uc5d0 \uc801\ud569\ud55c\uac00\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">\ub124, 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15, \ud2b9\ud788 \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac\ub97c \uac70\uce5c 420HC(\uace0\ud0c4\uc18c\uac15)\ub294 \uce7c \uc81c\uc791\uc5d0 \uc801\ud569\ud558\uace0 \ub9e4\uc6b0 \uc6b0\uc218\ud55c \uac15\uc7ac\ub85c \uc5ec\uaca8\uc9d1\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 420\uac15\uc740 \ubb34\ub974\uace0 \ub0a0 \uc720\uc9c0\ub825\uc774 \ub5a8\uc5b4\uc838 \uc77c\ubc18 \uce7c\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\ub2e4\ub294 \ud3c9\uac00\ub97c \ubc1b\uae30\ub3c4 \ud558\uc9c0\ub9cc, 420HC\ub294 \uac15\uc131\uc774 \ub6f0\uc5b4\ub098\uace0 \ub179\uc2ac\uc9c0 \uc54a\uc73c\uba70 \uc5f0\ub9c8\uac00 \uc27d\uace0 \ub0a0 \uc720\uc9c0\ub825\ub3c4 \uc6b0\uc218\ud55c \uac83\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. \ubc85 \ub098\uc774\ud504(Buck Knives)\uc640 \uac19\uc740 \ud68c\uc0ac\ub4e4\uc740 \ud2b9\uc218 \uc5f4\ucc98\ub9ac\ub97c \ud1b5\ud574 420HC\uc758 \ub6f0\uc5b4\ub09c \uc131\ub2a5\uc744 \uad6c\ud604\ud574\ub0c8\uc2b5\ub2c8\ub2e4. <\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567501208\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uce7c \uc81c\uc791\uc5d0 \uc788\uc5b4 &quot;\uc800\uac00\ud615&quot; \ub610\ub294 &quot;\uc800\ud488\uc9c8&quot;\ub85c \uc5ec\uaca8\uc9c0\ub098\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc624\ub798\ub41c \ud569\uae08\uc774\ub77c \ud754\ud788 &quot;\uc800\uac00\ud615 \uac15\ucca0&quot;\ub85c \ubd88\ub9ac\uc9c0\ub9cc, \ubc18\ub4dc\uc2dc \ud488\uc9c8\uc774 \ub0ae\uc740 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4. \uc774 \uac15\ucca0\uc758 \uc131\ub2a5\uc740 \uc5f4\ucc98\ub9ac \ubc29\uc2dd\uc5d0 \ub530\ub77c \ud06c\uac8c \uc88c\uc6b0\ub429\ub2c8\ub2e4. \ud2b9\ud788 420HC\uc758 \uacbd\uc6b0 \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac\ub97c \uac70\uce58\uba74 \uc2e4\uc0dd\ud65c\uc5d0\uc11c \ub6f0\uc5b4\ub09c \uc131\ub2a5\uc744 \ubc1c\ud718\ud558\uba70, \uacfc\uc18c\ud3c9\uac00\ub41c \uba74\ubaa8\ub3c4 \ubcf4\uc785\ub2c8\ub2e4. \ub0b4\uc2dd\uc131, \uc778\uc131, \uadf8\ub9ac\uace0 \uc5f0\ub9c8 \uc6a9\uc774\uc131\uae4c\uc9c0 \uac16\ucd94\uace0 \uc788\uc5b4 \uc77c\uc0c1 \ud734\ub300\uc6a9(EDC) \ub098\uc774\ud504\uc5d0 \uc801\ud569\ud55c \uc18c\uc7ac\uc785\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567502958\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uac80 \uc81c\uc791\uc5d0 \uc801\ud569\ud55c\uac00\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">\uc544\ub2c8\uc694, 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc2e4\uc6a9\uc801\uc778 \uac80 \uc81c\uc791\uc5d0\ub294 \uad8c\uc7a5\ub418\uc9c0 \uc54a\uc73c\uba70, \uc8fc\ub85c \uc7a5\uc2dd\uc6a9 \uac80\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ud0c4\uc18c \ud568\ub7c9\uc774 \ub0ae\uc544 \uce7c\ub0a0\uc774 \ubb34\ub978 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc6a9\uc801\uc778 \uac80\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud0c4\uc18c\uac15\uc73c\ub85c \uc81c\uc791\ub418\ub294\ub370, \ud0c4\uc18c\uac15\uc740 \uac00\uaca9\uc774 \uc800\ub834\ud558\uace0 \ub2e8\uc870 \ubc0f \uc5f4\ucc98\ub9ac\uac00 \uc6a9\uc774\ud558\uc5ec \ud544\uc694\ud55c \uc131\ub2a5\uc744 \ub0b4\uae30\uac00 \ub354 \uc27d\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uac80\uc740 \uc2e4\uc6a9\uc801\uc778 \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ud558\uae30\uc5d0\ub294 \ub108\ubb34 \ubd80\uc11c\uc9c0\uae30 \uc27d\uace0 \uae68\uc9c0\uac70\ub098 \ud30c\uc190\ub420 \uac00\ub2a5\uc131\uc774 \ub192\ub2e4\uace0 \uc5ec\uaca8\uc9d1\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567544563\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \uc54c\ub8e8\ubbf8\ub284\uacfc \ud568\uaed8 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(420 \ud3ec\ud568)\uacfc \uc54c\ub8e8\ubbf8\ub284\uc758 \ud638\ud658\uc131, \ud2b9\ud788 \uc2e4\uc678 \ub610\ub294 \uc2b5\ud55c \ud658\uacbd\uc5d0\uc11c\uc758 \ud638\ud658\uc131\uc5d0 \ub300\ud574\uc11c\ub294 \uac08\ubc14\ub2c9 \ubd80\uc2dd \uc704\ud5d8 \ub54c\ubb38\uc5d0 \uc758\uacac\uc774 \ubd84\ubd84\ud569\ub2c8\ub2e4. \uc77c\ubd80 \uc790\ub8cc\uc5d0\uc11c\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774 \uc54c\ub8e8\ubbf8\ub284\uacfc \uc811\ucd09\ud560 \uacbd\uc6b0 \uc544\uc5f0 \ub3c4\uae08\uac15\ubcf4\ub2e4 \ub354 \uc2ec\uac01\ud55c \ubd80\uc2dd\uc744 \uc77c\uc73c\ud0ac \uc218 \uc788\uc73c\uba70, \ud574\uc591 \ud658\uacbd\uc774\ub098 \uc2b5\ud55c \ud658\uacbd\uc5d0\uc11c \uc54c\ub8e8\ubbf8\ub284\uc5d0 \uc2ec\uac01\ud55c \ubd80\uc2dd\uc744 \ucd08\ub798\ud560 \uc218 \uc788\ub2e4\uace0 \uc8fc\uc7a5\ud569\ub2c8\ub2e4. \ubc18\uba74, \ub2e4\ub978 \uc790\ub8cc\uc5d0\uc11c\ub294 \uac08\ubc14\ub2c9 \ubc18\uc751\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ubcfc\ud2b8\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uac70\ub098, \uc54c\ub8e8\ubbf8\ub284\uc758 \ubcf4\ud638 \uc0b0\ud654\ub9c9\uc73c\ub85c \uc778\ud574 \uc628\ud654\ud55c \ud658\uacbd\uc5d0\uc11c\ub294 \ubc18\uc751\uc774 \ucd5c\uc18c\ud654\ub41c\ub2e4\uace0 \uc8fc\uc7a5\ud569\ub2c8\ub2e4. \uac08\ubc14\ub2c9 \ubd80\uc2dd \uac00\ub2a5\uc131\uc744 \uc904\uc774\uae30 \uc704\ud574 \ub450 \uae08\uc18d \uc0ac\uc774\uc5d0 \ud50c\ub77c\uc2a4\ud2f1\uc774\ub098 \uace0\ubb34 \uc7ac\uc9c8\uc758 \uc808\uc5f0 \uc640\uc154\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc9c1\uc811\uc801\uc778 \uc811\ucd09\uc744 \ucd5c\uc18c\ud654\ud558\ub294 \uac83\uc774 \ub110\ub9ac \uad8c\uc7a5\ub429\ub2c8\ub2e4.<br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567545393\"><strong class=\"schema-faq-question\"><strong>\uc5f4\ucc98\ub9ac\uac00 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc131\ub2a5\uc5d0 \uc5b4\ub5a4 \uc601\ud5a5\uc744 \ubbf8\uce58\ub098\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc131\ub2a5 \ud2b9\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ub370 \uc5f4\ucc98\ub9ac\ub294 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \ucd5c\ub300 \ub0b4\uc2dd\uc131\uc740 \uac15\uc7ac\uac00 \uc644\uc804\ud788 \uacbd\ud654\ub418\uac70\ub098 \uacbd\ud654 \ud6c4 \uc751\ub825 \uc81c\uac70 \ucc98\ub9ac\ub418\uc5c8\uc744 \ub54c\ub9cc \ub2ec\uc131\ub418\uba70, \ucd5c\uc801\uc758 \ub0b4\uc2dd\uc131\uc744 \uc704\ud574 \uc77c\ubc18\uc801\uc73c\ub85c \uc5b4\ub2d0\ub9c1\ub41c \uc0c1\ud0dc\ub85c\ub294 \uc0ac\uc6a9\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac\ub294 \ud2b9\ud788 420HC \ubcc0\ud615\uc758 \uacbd\uc6b0 \uacbd\ub3c4 \ubc0f \ub0a0 \uc720\uc9c0\ub825\uacfc \uac19\uc740 \ud2b9\uc131\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc5f0\uc9c8(\uc5b4\ub2d0\ub9c1) \uc0c1\ud0dc\uc77c \ub54c\ub294 \uc720\uc5f0\ud558\uc9c0\ub9cc, \uacbd\ud654\ub418\uba74 \ub9e4\uc6b0 \ub2e8\ub2e8\ud574\uc9d1\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567581789\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc5b4\ub5bb\uac8c \uc5f4\ucc98\ub9ac\ub418\ub098\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud45c\uc900 \uc5f4\ucc98\ub9ac \uacf5\uc815\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<br>\uc5f4\ucc98\ub9ac(\ucd5c\ub300\ud55c \ubd80\ub4dc\ub7fd\uac8c \ud558\uae30 \uc704\ud574): 816~899\u00b0C(1500~1650\u00b0F)\uae4c\uc9c0 \uade0\uc77c\ud558\uac8c \uac00\uc5f4\ud55c \ud6c4, \uc6a9\uad11\ub85c \uc548\uc5d0\uc11c \ucc9c\ucc9c\ud788 \uc2dd\ud788\uc2ed\uc2dc\uc624.<br>\uacf5\uc815 \uc5b4\ub2d0\ub9c1: 732~788\u00b0C(1350~1450\u00b0F)\ub85c \uac00\uc5f4\ud55c \ud6c4 \uacf5\ub7ad\ud569\ub2c8\ub2e4.<br>\uacbd\ud654: \uc608\uc5f4 \ud6c4 982~1066\u00b0C(1800~1950\u00b0F)\uae4c\uc9c0 \uac00\uc5f4\ud558\uace0 \ud574\ub2f9 \uc628\ub3c4\uc5d0\uc11c \uc720\uc9c0\ud55c \ub2e4\uc74c \uacf5\uae30 \uc911\uc5d0\uc11c \ub0c9\uac01\ud558\uac70\ub098 \ub530\ub73b\ud55c \uc624\uc77c\uc5d0 \ub2f4\uae08\uc9c8\ud569\ub2c8\ub2e4.<br>\uc2a4\ud2b8\ub808\uc2a4 \ud574\uc18c: 149~427\u00b0C(300~800\u00b0F)\ub85c 1~3\uc2dc\uac04 \ub3d9\uc548 \uac00\uc5f4\ud55c \ud6c4 \uacf5\uae30 \uc911\uc5d0\uc11c \uc2dd\ud788\uac70\ub098 \uae30\ub984\uc774\ub098 \ubb3c\uc5d0 \ub2f4\uac00 \uae09\ub7ad\ud558\uc2ed\uc2dc\uc624.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567582585\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc6a9\uc811\uc774 \uac00\ub2a5\ud55c\uac00\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(420\ud615 \ud3ec\ud568)\uc740 \uc6a9\uc811\uc131\uc774 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \uc6a9\uc811\uc774 \ud544\uc694\ud55c \uacbd\uc6b0 260\u00b0C(550\u00b0F)\ub85c \uc608\uc5f4\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc6a9\uc811 \ud6c4 \uc5f4\ucc98\ub9ac\ub97c \uc2e4\uc2dc\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567583438\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc131\ud615\uc774 \uac00\ub2a5\ud55c\uac00\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">\ub124, 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \ucd5c\ub300\ud55c \ubd80\ub4dc\ub7fd\uac8c \ud558\uae30 \uc704\ud574 \uc5f4\ucc98\ub9ac\ud558\uba74 \uc801\ub2f9\ud788 \uc778\ubc1c \ubc0f \uc131\ud615\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567627345\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc628\ub3c4 \uc81c\ud55c\uc740 \uc5b4\ub5bb\uac8c \ub418\ub098\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 800\u00b0F(427\u00b0C)\ub97c \ucd08\uacfc\ud558\ub294 \uc628\ub3c4\uc5d0\uc11c \uc0ac\uc6a9\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uace0\uc628\uc5d0\uc11c \uae09\uaca9\ud55c \uc5f0\ud654 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\uace0 \ub0b4\uc2dd\uc131\uc774 \uc800\ud558\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567629160\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc 420HC \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc774\uba70, \ud2b9\ud788 \ud0c4\uc18c \ud568\ub7c9 \uce21\uba74\uc5d0\uc11c \uc5b4\ub5a4 \ucc28\uc774\uac00 \uc788\uc2b5\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">\ud575\uc2ec\uc801\uc778 \ucc28\uc774\uc810\uc740 \ud0c4\uc18c \ud568\ub7c9\uc5d0 \uc788\uc73c\uba70, \uc774\ub294 \uc131\ub2a5\uc5d0 \uc0c1\ub2f9\ud55c \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 420(\ubc0f 420J)\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud0c4\uc18c \ud568\ub7c9\uc774 \ub0ae\uc544 \uc57d 0.15%\uc785\ub2c8\ub2e4. \ubc18\uba74, 420HC(\uace0\ud0c4\uc18c\uac15)\ub294 \ud0c4\uc18c \ud568\ub7c9\uc774 \ud6e8\uc52c \ub192\uc544 \ubcf4\ud1b5 \uc57d 0.46%\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub192\uc740 \ud0c4\uc18c \ud568\ub7c9\uc740 \ud2b9\ud788 \ud2b9\uc218 \uc5f4\ucc98\ub9ac\uc640 \uacb0\ud569\ub420 \uacbd\uc6b0, 420HC\uc5d0 \ud5a5\uc0c1\ub41c \uacbd\ub3c4, \ub6f0\uc5b4\ub09c \ub0a0 \uc720\uc9c0\ub825, \uadf8\ub9ac\uace0 \uce7c\uacfc \uac19\uc740 \uc6a9\ub3c4\uc5d0 \ub354\uc6b1 \uc801\ud569\ud55c \ub0b4\uad6c\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. 420 \ub4f1\uae09\ubcc4 \ud0c4\uc18c \ud568\ub7c9 \ucc28\uc774 \ub54c\ubb38\uc5d0 &quot;420&quot; \uac15\uc7ac\uc5d0 \ub300\ud574 \ucd9c\ucc98\ub9c8\ub2e4 \ud0c4\uc18c \ud568\ub7c9 \ube44\uc728\uc774 \ub2e4\ub974\uac8c \ud45c\uae30\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567651992\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 440 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \uc5b4\ub5bb\uac8c \ub2e4\ub978\uac00\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420\uacfc 440\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uac00\uc131\ube44 \uc88b\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c \uc5ec\uaca8\uc9d1\ub2c8\ub2e4. 420(\ud2b9\ud788 420HC)\uc740 \ub9e4\uc6b0 \uac15\uc778\ud558\uba70 \ub0a0 \uc720\uc9c0\ub825\uc774 \uc6b0\uc218\ud55c \uac83\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4. 440(\ud2b9\ud788 440C)\uc740 \ub354 \ub192\uc740 \uacbd\ub3c4(58 HRC \uc774\uc0c1)\ub97c \ub0bc \uc218 \uc788\uc73c\uba70 \uc77c\ubc18\uc801\uc73c\ub85c \ub0a0 \uc720\uc9c0\ub825\uc774 \ub354 \uc88b\uc9c0\ub9cc, 420\ub9cc\ud07c \uac15\uc778\ud558\uc9c0\ub294 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 440C\ub294 \ub610\ud55c \ub0b4\uc2dd\uc131\uc774 \ub6f0\uc5b4\ub09c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \ud06c\ub86c\uac15\uc73c\ub85c \ub0b4\ub9c8\ubaa8\uc131\ub3c4 \ub192\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \uc131\ub2a5\uc744 \ube44\uad50\ud560 \ub54c\ub294 \ud2b9\uc815 \ub4f1\uae09\uacfc \uc5f4\ucc98\ub9ac \ubc29\uc2dd\uc774 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567652987\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ub0b4\uc2dd\uc131\uc740 316 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ube44\uad50\ud588\uc744 \ub54c \uc5b4\ub5bb\uc2b5\ub2c8\uae4c?<\/strong><\/strong> <p class=\"schema-faq-answer\">420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ub2e4\ub978 \uc2dd\uae30\uc6a9 \uac15\uc7ac\uc5d0 \ube44\ud574 \ub0b4\uc2dd\uc131\uc774 \uc6b0\uc218\ud558\uc9c0\ub9cc, 316 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\ubcf4\ub2e4\ub294 \ub0b4\uc2dd\uc131\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. SAE 316 \ubc0f 316L(\ud754\ud788 &quot;\ud574\uc591 \ub4f1\uae09&quot;\uc774\ub77c\uace0 \ud568)\uc740 \ud06c\ub86c, \ub2c8\ucf08, \ubab0\ub9ac\ube0c\ub374 \ud569\uae08\uc73c\ub85c, \ub6f0\uc5b4\ub09c \uac15\ub3c4\uc640 \ub0b4\uc2dd\uc131\uc744 \uc790\ub791\ud558\uba70, \ud2b9\uc815 \uae30\uc900\uc5d0 \ub530\ub77c \uc0dd\uc0b0\ub420 \uacbd\uc6b0 \uc0dd\uccb4 \uc801\ud569\uc131\ub3c4 \uac16\ucd98 \uac83\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc2b5\ub2c8\ub2e4.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1755567683448\"><strong class=\"schema-faq-question\"><strong>420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc88b\uc740 \uc7ac\uc9c8\uc778\uac00\uc694?<\/strong><\/strong> <p class=\"schema-faq-answer\">420\uac15\uc740 \uc6b0\uc218\ud55c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c, \ud2b9\ud788 \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac\ub97c \uac70\uce58\uba74 \ub2e4\uc591\ud55c \uc6a9\ub3c4\uc5d0 \ub9cc\uc871\uc2a4\ub7ec\uc6b4 \uc218\uc900\uc758 \ub0b4\uc2dd\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub0b4\uc2dd\uc131\uacfc \ub354\ubd88\uc5b4 \ub192\uc740 \uacbd\ub3c4 \ubc0f \ub0b4\ub9c8\ubaa8\uc131\uc744 \uac16\ucd9c \uc218 \uc788\uc5b4 \uc2dd\uae30\ub958 \ubc0f \ud2b9\uc815 \uacf5\uad6c\ub958 \ub4f1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ud65c\uc6a9\ub418\ub294 \uc18c\uc7ac\uc785\ub2c8\ub2e4.\u00a0<\/p> <\/div> <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>420 stainless steel is a&nbsp;martensitic&nbsp;stainless steel, which is a type of iron-chromium alloy.&nbsp;It is part of the&nbsp;400-series&nbsp;stainless steel classifications.&nbsp;Unlike some other stainless steel types, AISI 420 stainless steel is&nbsp;magnetic. 1. Applications 2.&nbsp;420 Stainless Steel Composition Element Carbon (C) Manganese (Mn) Silicon (Si) Phosphorus (P) Sulfur (S) Chromium (Cr) Compositional&nbsp; 0.15- 0.40% \u2264 1.00% \u2264 0.50% [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9160,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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is 420 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"420 stainless steel is a martensitic stainless steel and the most commonly used. It has similar corrosion resistance to 410 stainless steel, but with higher strength and hardness. It is also widely known as \u201ccutlery stainless steel.\u201d\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567393846\",\"position\":2,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567393846\",\"name\":\"What are the key properties of 420 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It has a hardness of 52-55 HRC (or Rockwell C55 when hardened and stress relieved), a density of 0.280 lbs\\\/in\u00b3 (7.74 g\\\/cm\u00b3), and a tensile strength of 275,000 psi (230 ksi or 1586 MPa when hardened and stress relieved). It is magnetic in both annealed and hardened conditions. Additionally, it possesses good machining properties, is hardenable, polishable, and conditionally acid-resistant.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567394643\",\"position\":3,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567394643\",\"name\":\"What is the chemical composition of 420 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Its chemical makeup typically includes Carbon (C) at 0.15\u20130.36% (or a minimum of 0.15%, up to 0.5% in some variations), Chromium (Cr) at 12\u201314%, and a maximum of 1.0% each for Silicon (Si) and Manganese (Mn). Phosphorus (P) is typically 0.04% Max, and Sulfur (S) is 0.03% Max.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567395361\",\"position\":4,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567395361\",\"name\":\"Does 420 stainless steel rust?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"420 stainless steel has excellent corrosion resistance. It can resist corrosion from the atmosphere, fresh water, steam, gasoline, alcohol, blood, sweat, grease, and food.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567396093\",\"position\":5,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567396093\",\"name\":\"Is 420 stainless steel magnetic?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, 420 stainless steel is attracted to a magnet and is magnetic in both its annealed and hardened states.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567397185\",\"position\":6,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567397185\",\"name\":\"What is the hardness of 420 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The hardness of 420 stainless steel ranges from 52 to 55 HRC.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567397961\",\"position\":7,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567397961\",\"name\":\"What are the international standards equivalent to 420 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"420 stainless steel has several equivalent international standards, including\u00a0AISI 420,\u00a0BS970 420S37, 420S45,\u00a0DIN 1.4021, 1.4025, 1.4034,\u00a0AFNOR Z30C13, Z40C14, and\u00a0JIS SUS 4200JI, 420J2. It is also covered by the ASTM A176 and AMS 5506 specifications, and its UNS number is S42000.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567398578\",\"position\":8,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567398578\",\"name\":\"What are the typical uses for 420 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Typical uses include bearing manufacture, valve parts, hose connectors &amp; fittings. It is also widely used for cutlery, surgical and dental instruments, scissors, tapes, and straight edges. It is considered ideal for applications that demand both good corrosion resistance and high hardness.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567500191\",\"position\":9,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567500191\",\"name\":\"Is 420 stainless steel suitable for knives?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, 420 stainless steel, particularly the 420HC (High Carbon) variant with proper heat treatment, is considered suitable and can be an excellent steel for knives. While some generic 420 might be considered outdated for general-use knives due to its softness and poorer edge retention, 420HC is known for being tough, stainless, easy to sharpen, and having respectable edge retention. Companies like Buck Knives have achieved solid performance with 420HC through specialized heat treatments. \",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567501208\",\"position\":10,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567501208\",\"name\":\"Is 420 stainless steel considered \u201cbudget\u201d or \u201clow-quality\u201d for knives?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"While often referred to as \u201cbudget steel because it is an older alloy, 420 stainless steel is not necessarily low-quality. Its performance heavily depends on the heat treatment it receives; with proper heat treatment (especially for 420HC), it can be a solid, usable, and even underrated performer in real-world applications. It offers good corrosion resistance, toughness, and ease of sharpening, making it a viable option for everyday carry (EDC) knives.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567502958\",\"position\":11,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567502958\",\"name\":\"Is 420 stainless steel suitable for swords?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, 420 stainless steel is generally not recommended for functional swords and is often found in \u201cwall hangers\u201d (decorative swords). The carbon content of 420 can be fairly low, making the blade softer. Functional swords are typically made from carbon steel because it is cheaper, easier to forge, and easier to heat-treat to achieve the required performance. Stainless steel swords are broadly viewed as too brittle and prone to chipping or shattering for practical use.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567544563\",\"position\":12,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567544563\",\"name\":\"Can 420 stainless steel be used with aluminum?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"There are\u00a0conflicting views\u00a0on the compatibility of stainless steel (including 420) with aluminum, particularly in exterior or wet environments, due to the risk of\u00a0galvanic corrosion. Some sources indicate that stainless steel can be worse than galvanized steel when in contact with aluminum, leading to severe corrosion of aluminum in marine or wet conditions. Conversely, other sources suggest stainless steel bolts might be used to avoid galvanic reactions, or that reactions are minimal in mild conditions due to aluminum\u2019s protective oxide layer. To mitigate potential galvanic corrosion, it is widely recommended to use\u00a0isolation washers made of plastic or rubber\u00a0between the two metals to minimize direct contact.<br>\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567545393\",\"position\":13,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567545393\",\"name\":\"How does heat treatment affect 420 stainless steel\u2019s performance?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Heat treatment is crucial for enhancing the performance characteristics of 420 stainless steel. Its maximum corrosion resistance is achieved only when the steel is fully hardened or hardened and stress-relieved; it is generally never used in the annealed condition for optimal corrosion resistance. Proper heat treatment can significantly improve properties such as hardness and edge retention, especially for variant 420HC. When 420 is soft (annealed), it is flexible; when hardened, it becomes quite hard.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567581789\",\"position\":14,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567581789\",\"name\":\"How is 420 stainless steel heat-treated?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Standard heat treatment processes for 420 stainless steel include:<br>Annealing (for maximum softness):\u00a0Heat uniformly to\u00a01500 \u2013 1650\u00b0F (816 \u2013 899\u00b0C)\u00a0and cool slowly in the furnace.<br>Process Annealing:\u00a0Heat to\u00a01350 \u2013 1450\u00b0F (732 \u2013 788\u00b0C), then air cool.<br>Hardening:\u00a0Preheat, then heat to\u00a01800 \u2013 1950\u00b0F (982 \u2013 1066\u00b0C), soak at the temperature, and then air cool or quench in warm oil.<br>Stress Relieving:\u00a0Heat to 300\u2013800\u00b0F (149\u2013427\u00b0C) for 1-3 hours, then cool in air or quench in oil or water.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567582585\",\"position\":15,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567582585\",\"name\":\"Is 420 stainless steel weldable?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Martensitic stainless steel series, including type 420, has limited weldability. If welding is required, it is recommended to preheat to 550\u00b0F (260\u00b0C). It is also recommended to perform heat treatment after welding.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567583438\",\"position\":16,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567583438\",\"name\":\"Is 420 stainless steel formable?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, if 420 stainless steel is annealed for maximum softness, it can be moderately drawn and formed.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567627345\",\"position\":17,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567627345\",\"name\":\"What are the temperature limitations for 420 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"420 stainless steel is not typically used at temperatures exceeding 800\u00b0F (427\u00b0C). This is because higher temperatures lead to rapid softening and a loss of its corrosion resistance.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567629160\",\"position\":18,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567629160\",\"name\":\"What is the difference between 420 and 420HC stainless steel, particularly regarding carbon content?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The key difference lies in their carbon content, which significantly impacts their performance. Generic 420 (and 420J) typically has a lower carbon content, around 0.15%. In contrast, 420HC (High Carbon) has a notably higher carbon content, usually around 0.46%. This higher carbon content, especially when combined with specialized heat treatment, provides 420HC with improved hardness, better edge retention, and more robust performance for applications like knives. The variation in carbon content among different 420 grades explains why sources may report different carbon percentages for \u201c420\u201d steel.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567651992\",\"position\":19,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567651992\",\"name\":\"How does 420 stainless steel compare to 440 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Both 420 and 440 are generally considered\u00a0decent and usable \u201cbudget\u201d stainless steels. 420 (specifically 420HC) is described as very tough with respectable edge retention. 440 (particularly 440C) can achieve\u00a0higher hardness (58 HRC or above)\u00a0and typically offers better edge retention, though it may not be as tough as 420. 440C is also a corrosion-resistant martensitic chromium steel with high wear resistance. The specific grade and heat treatment are important for comparing their actual performance.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567652987\",\"position\":20,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567652987\",\"name\":\"How does 420 stainless steel\u2019s corrosion resistance compare to 316 stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"While 420 stainless steel offers good corrosion resistance compared to other cutlery steels, its\u00a0corrosion resistance is inferior to 316 stainless steel. SAE 316 and 316L (often called \u201cmarine grade\u201d) are chromium, nickel, molybdenum alloys known for their superior strength and corrosion resistance, and are considered biocompatible when produced to specific standards.\",\"inLanguage\":\"ko-KR\"},\"inLanguage\":\"ko-KR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567683448\",\"position\":21,\"url\":\"https:\\\/\\\/aobosteel.com\\\/420-stainless-steel\\\/#faq-question-1755567683448\",\"name\":\"Is 420 a good stainless steel?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"420 steel is indeed a good stainless steel, offering a satisfactory level of corrosion resistance for a wide range of applications, particularly when properly heat-treated. 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\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774\ub780 \ubb34\uc5c7\uc778\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"420 stainless steel is a martensitic stainless steel and the most commonly used. It has similar corrosion resistance to 410 stainless steel, but with higher strength and hardness. It is also widely known as \u201ccutlery stainless steel.\u201d","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567393846","position":2,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567393846","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc8fc\uc694 \ud2b9\uc131\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"It has a hardness of 52-55 HRC (or Rockwell C55 when hardened and stress relieved), a density of 0.280 lbs\/in\u00b3 (7.74 g\/cm\u00b3), and a tensile strength of 275,000 psi (230 ksi or 1586 MPa when hardened and stress relieved). It is magnetic in both annealed and hardened conditions. Additionally, it possesses good machining properties, is hardenable, polishable, and conditionally acid-resistant.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567394643","position":3,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567394643","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud654\ud559\uc801 \uc870\uc131\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Its chemical makeup typically includes Carbon (C) at 0.15\u20130.36% (or a minimum of 0.15%, up to 0.5% in some variations), Chromium (Cr) at 12\u201314%, and a maximum of 1.0% each for Silicon (Si) and Manganese (Mn). Phosphorus (P) is typically 0.04% Max, and Sulfur (S) is 0.03% Max.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567395361","position":4,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567395361","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ub179\uc774 \uc2ac\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"420 stainless steel has excellent corrosion resistance. It can resist corrosion from the atmosphere, fresh water, steam, gasoline, alcohol, blood, sweat, grease, and food.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567396093","position":5,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567396093","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc790\uc131\uc744 \ub760\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, 420 stainless steel is attracted to a magnet and is magnetic in both its annealed and hardened states.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567397185","position":6,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567397185","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uacbd\ub3c4\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The hardness of 420 stainless steel ranges from 52 to 55 HRC.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567397961","position":7,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567397961","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ub3d9\ub4f1\ud55c \uad6d\uc81c \ud45c\uc900\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"420 stainless steel has several equivalent international standards, including\u00a0AISI 420,\u00a0BS970 420S37, 420S45,\u00a0DIN 1.4021, 1.4025, 1.4034,\u00a0AFNOR Z30C13, Z40C14, and\u00a0JIS SUS 4200JI, 420J2. It is also covered by the ASTM A176 and AMS 5506 specifications, and its UNS number is S42000.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567398578","position":8,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567398578","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uc6a9\ub3c4\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Typical uses include bearing manufacture, valve parts, hose connectors &amp; fittings. It is also widely used for cutlery, surgical and dental instruments, scissors, tapes, and straight edges. It is considered ideal for applications that demand both good corrosion resistance and high hardness.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567500191","position":9,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567500191","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uce7c\uc5d0 \uc801\ud569\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, 420 stainless steel, particularly the 420HC (High Carbon) variant with proper heat treatment, is considered suitable and can be an excellent steel for knives. While some generic 420 might be considered outdated for general-use knives due to its softness and poorer edge retention, 420HC is known for being tough, stainless, easy to sharpen, and having respectable edge retention. Companies like Buck Knives have achieved solid performance with 420HC through specialized heat treatments. ","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567501208","position":10,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567501208","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uce7c \uc81c\uc791\uc5d0 \uc788\uc5b4 &quot;\uc800\uac00\ud615&quot; \ub610\ub294 &quot;\uc800\ud488\uc9c8&quot;\ub85c \uc5ec\uaca8\uc9c0\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"While often referred to as \u201cbudget steel because it is an older alloy, 420 stainless steel is not necessarily low-quality. Its performance heavily depends on the heat treatment it receives; with proper heat treatment (especially for 420HC), it can be a solid, usable, and even underrated performer in real-world applications. It offers good corrosion resistance, toughness, and ease of sharpening, making it a viable option for everyday carry (EDC) knives.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567502958","position":11,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567502958","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uac80 \uc81c\uc791\uc5d0 \uc801\ud569\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No, 420 stainless steel is generally not recommended for functional swords and is often found in \u201cwall hangers\u201d (decorative swords). The carbon content of 420 can be fairly low, making the blade softer. Functional swords are typically made from carbon steel because it is cheaper, easier to forge, and easier to heat-treat to achieve the required performance. Stainless steel swords are broadly viewed as too brittle and prone to chipping or shattering for practical use.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567544563","position":12,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567544563","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \uc54c\ub8e8\ubbf8\ub284\uacfc \ud568\uaed8 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"There are\u00a0conflicting views\u00a0on the compatibility of stainless steel (including 420) with aluminum, particularly in exterior or wet environments, due to the risk of\u00a0galvanic corrosion. Some sources indicate that stainless steel can be worse than galvanized steel when in contact with aluminum, leading to severe corrosion of aluminum in marine or wet conditions. Conversely, other sources suggest stainless steel bolts might be used to avoid galvanic reactions, or that reactions are minimal in mild conditions due to aluminum\u2019s protective oxide layer. To mitigate potential galvanic corrosion, it is widely recommended to use\u00a0isolation washers made of plastic or rubber\u00a0between the two metals to minimize direct contact.<br>","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567545393","position":13,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567545393","name":"\uc5f4\ucc98\ub9ac\uac00 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc131\ub2a5\uc5d0 \uc5b4\ub5a4 \uc601\ud5a5\uc744 \ubbf8\uce58\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Heat treatment is crucial for enhancing the performance characteristics of 420 stainless steel. Its maximum corrosion resistance is achieved only when the steel is fully hardened or hardened and stress-relieved; it is generally never used in the annealed condition for optimal corrosion resistance. Proper heat treatment can significantly improve properties such as hardness and edge retention, especially for variant 420HC. When 420 is soft (annealed), it is flexible; when hardened, it becomes quite hard.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567581789","position":14,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567581789","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc5b4\ub5bb\uac8c \uc5f4\ucc98\ub9ac\ub418\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Standard heat treatment processes for 420 stainless steel include:<br>Annealing (for maximum softness):\u00a0Heat uniformly to\u00a01500 \u2013 1650\u00b0F (816 \u2013 899\u00b0C)\u00a0and cool slowly in the furnace.<br>Process Annealing:\u00a0Heat to\u00a01350 \u2013 1450\u00b0F (732 \u2013 788\u00b0C), then air cool.<br>Hardening:\u00a0Preheat, then heat to\u00a01800 \u2013 1950\u00b0F (982 \u2013 1066\u00b0C), soak at the temperature, and then air cool or quench in warm oil.<br>Stress Relieving:\u00a0Heat to 300\u2013800\u00b0F (149\u2013427\u00b0C) for 1-3 hours, then cool in air or quench in oil or water.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567582585","position":15,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567582585","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc6a9\uc811\uc774 \uac00\ub2a5\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Martensitic stainless steel series, including type 420, has limited weldability. If welding is required, it is recommended to preheat to 550\u00b0F (260\u00b0C). It is also recommended to perform heat treatment after welding.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567583438","position":16,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567583438","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc131\ud615\uc774 \uac00\ub2a5\ud55c\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, if 420 stainless steel is annealed for maximum softness, it can be moderately drawn and formed.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567627345","position":17,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567627345","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc628\ub3c4 \uc81c\ud55c\uc740 \uc5b4\ub5bb\uac8c \ub418\ub098\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"420 stainless steel is not typically used at temperatures exceeding 800\u00b0F (427\u00b0C). This is because higher temperatures lead to rapid softening and a loss of its corrosion resistance.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567629160","position":18,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567629160","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc 420HC \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc774\uba70, \ud2b9\ud788 \ud0c4\uc18c \ud568\ub7c9 \uce21\uba74\uc5d0\uc11c \uc5b4\ub5a4 \ucc28\uc774\uac00 \uc788\uc2b5\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The key difference lies in their carbon content, which significantly impacts their performance. Generic 420 (and 420J) typically has a lower carbon content, around 0.15%. In contrast, 420HC (High Carbon) has a notably higher carbon content, usually around 0.46%. This higher carbon content, especially when combined with specialized heat treatment, provides 420HC with improved hardness, better edge retention, and more robust performance for applications like knives. The variation in carbon content among different 420 grades explains why sources may report different carbon percentages for \u201c420\u201d steel.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567651992","position":19,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567651992","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 440 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \uc5b4\ub5bb\uac8c \ub2e4\ub978\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Both 420 and 440 are generally considered\u00a0decent and usable \u201cbudget\u201d stainless steels. 420 (specifically 420HC) is described as very tough with respectable edge retention. 440 (particularly 440C) can achieve\u00a0higher hardness (58 HRC or above)\u00a0and typically offers better edge retention, though it may not be as tough as 420. 440C is also a corrosion-resistant martensitic chromium steel with high wear resistance. The specific grade and heat treatment are important for comparing their actual performance.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567652987","position":20,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567652987","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ub0b4\uc2dd\uc131\uc740 316 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ube44\uad50\ud588\uc744 \ub54c \uc5b4\ub5bb\uc2b5\ub2c8\uae4c?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"While 420 stainless steel offers good corrosion resistance compared to other cutlery steels, its\u00a0corrosion resistance is inferior to 316 stainless steel. SAE 316 and 316L (often called \u201cmarine grade\u201d) are chromium, nickel, molybdenum alloys known for their superior strength and corrosion resistance, and are considered biocompatible when produced to specific standards.","inLanguage":"ko-KR"},"inLanguage":"ko-KR"},{"@type":"Question","@id":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567683448","position":21,"url":"https:\/\/aobosteel.com\/420-stainless-steel\/#faq-question-1755567683448","name":"420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc88b\uc740 \uc7ac\uc9c8\uc778\uac00\uc694?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"420 steel is indeed a good stainless steel, offering a satisfactory level of corrosion resistance for a wide range of applications, particularly when properly heat-treated. Its combination of corrosion resistance with achievable high hardness and wear resistance makes it a versatile material, notably for cutlery and certain tooling applications.\u00a0","inLanguage":"ko-KR"},"inLanguage":"ko-KR"}]}},"uagb_featured_image_src":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-300x300.avif",300,300,true],"medium_large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-12x12.avif",12,12,true]},"uagb_author_info":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"420 stainless steel is a&nbsp;martensitic&nbsp;stainless steel, which is a type of iron-chromium alloy.&nbsp;It is part of the&nbsp;400-series&nbsp;stainless steel classifications.&nbsp;Unlike some other stainless steel types, AISI 420 stainless steel is&nbsp;magnetic. 1. Applications 2.&nbsp;420 Stainless Steel Composition Element Carbon (C) Manganese (Mn) Silicon (Si) Phosphorus (P) Sulfur (S) Chromium (Cr) Compositional&nbsp; 0.15- 0.40% \u2264 1.00% \u2264 0.50%&hellip;","rttpg_featured_image_url":{"full":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"landscape":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"portraits":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"thumbnail":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-150x150.avif",150,150,true],"medium":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-300x300.avif",300,300,true],"large":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"1536x1536":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"2048x2048":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel.avif",764,764,false],"trp-custom-language-flag":["https:\/\/aobosteel.com\/wp-content\/uploads\/2025\/07\/420-stainless-steel-12x12.avif",12,12,true]},"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"420 stainless steel is a&nbsp;martensitic&nbsp;stainless steel, which is a type of iron-chromium alloy.&nbsp;It is part of the&nbsp;400-series&nbsp;stainless steel classifications.&nbsp;Unlike some other stainless steel types, AISI 420 stainless steel is&nbsp;magnetic. 1. Applications 2.&nbsp;420 Stainless Steel Composition Element Carbon (C) Manganese (Mn) Silicon (Si) Phosphorus (P) Sulfur (S) Chromium (Cr) Compositional&nbsp; 0.15- 0.40% \u2264 1.00% \u2264 0.50%&hellip;","_links":{"self":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/9313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/comments?post=9313"}],"version-history":[{"count":0,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/pages\/9313\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media\/9160"}],"wp:attachment":[{"href":"https:\/\/aobosteel.com\/ko\/wp-json\/wp\/v2\/media?parent=9313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}