{"id":13540,"date":"2026-03-12T12:03:35","date_gmt":"2026-03-12T04:03:35","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=13540"},"modified":"2026-10-06T08:15:37","modified_gmt":"2026-10-06T00:15:37","slug":"h13-vs-skd61-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/h13-vs-skd61-tool-steel\/","title":{"rendered":"H13\uacfc SKD61 \uacf5\uad6c\uac15: \uac19\uc740 \uac78\uae4c\uc694? | \uc544\uc624\ubcf4 \uc2a4\ud2f8"},"content":{"rendered":"<section class=\"aobo-h13-vs-skd61-tool-steel-page\">\n  <style>\n\n\n\n\n\n    .aobo-h13-vs-skd61-tool-steel-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      font-family: inherit;\n      color: var(--aobo-text);\n      line-height: 1.7;\n      background: transparent;\n      padding: 0;\n      box-sizing: 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SKD61 \uacf5\uad6c\uac15<\/h1>\n      <p>H13\uacfc SKD61\uc740 \uc11c\ub85c \ub2e4\ub978 \ud45c\uc900\uc5d0 \uc815\uc758\ub418\uc5b4 \uc788\uc9c0\ub9cc \uad6d\uc81c\uc801\uc778 \uacf5\uad6c \ubd84\uc57c\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub3d9\ub4f1\ud55c \ub4f1\uae09\uc73c\ub85c \ucde8\uae09\ub418\ub294 \ub450 \uac00\uc9c0 \uace0\uc628 \uc791\uc5c5\uc6a9 \uacf5\uad6c\uac15 \uba85\uce6d\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub3d9\uc77c\ud55c \ud45c\uc900 \uccb4\uacc4\uc5d0 \ub530\ub77c \uaddc\uc815\ub418\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc5d4\uc9c0\ub2c8\uc5b4\uc640 \uad6c\ub9e4\uc790\ub294 \ub450 \uac15\uc885\uc744 \uc9c1\uc811 \ub300\uccb4\uc7ac\ub85c \uc0ac\uc6a9\ud558\uae30 \uc804\uc5d0 \ud654\ud559\uc801 \uc81c\ud55c \ubc0f \uc778\uc99d\uc744 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\ud45c\uc900 \uac04 \ub4f1\uac00 \ubc0f \ub4f1\uae09 \ube44\uad50\uc5d0 \ub300\ud55c \ub354 \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. <a href=\"https:\/\/aobosteel.com\/ko\/h13-steel-equivalent-grades\/\">H13 \ub3d9\ub4f1\ud488 \ubc0f \ube44\uad50 \uac00\uc774\ub4dc<\/a>.<\/p>\n    <\/header>\n\n    <main class=\"aobo-article\">\n      <h2>H13\uacfc SKD61\uc740 \ub3d9\uc77c\ud55c \uc81c\ud488\uc778\uac00\uc694?<\/h2>\n      <p>\uc2e4\uc81c \uc0b0\uc5c5 \ud604\uc7a5\uc5d0\uc11c\ub294 SKD61\uc774 \uc77c\ubc18\uc801\uc73c\ub85c H13\uc758 \uc77c\ubcf8 \ub4f1\uac00\uc7ac\ub85c \ucde8\uae09\ub429\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/hot-work-tool-steels\/\">\ub450 \ub4f1\uae09 \ubaa8\ub450 \ub3d9\uc77c\ud55c \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374-\ubc14\ub098\ub4d0 \uc5f4\uac04 \uacf5\uad6c\uac15 \uacc4\uc5f4\uc5d0 \uc18d\ud558\uba70<\/a> \uace0\uc628, \uae30\uacc4\uc801 \uc751\ub825 \ubc0f \uc5f4 \uc0ac\uc774\ud074\uc5d0 \ub178\ucd9c\ub418\ub294 \uacf5\uad6c\uc6a9\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n      <p>\uc5c4\ubc00\ud788 \ub9d0\ud558\uba74 H13\uacfc SKD61\uc740 \ub3d9\uc77c\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. H13\uacfc SKD61\uc740 \uc11c\ub85c \ub2e4\ub978 \uae30\uc900\uc5d0 \ub530\ub77c \uc815\uc758\ub418\uba70, \ud5c8\uc6a9\ub418\ub294 \ud654\ud559 \ubb3c\uc9c8 \ubc94\uc704\ub3c4 \uc815\ud655\ud788 \uc77c\uce58\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub300\uccb4\ud488\uc744 \uc0ac\uc6a9\ud560 \uacbd\uc6b0, \ud574\ub2f9 \uc81c\ud488\uc758 \uc0ac\uc591 \ubc0f \uacf5\uae09\ub41c \ubc30\uce58\uc5d0 \ub300\ud55c \uc7ac\ub8cc \uc2dc\ud5d8 \ubcf4\uace0\uc11c\ub97c \ud655\uc778\ud558\uc5ec \ubcc0\uacbd \uc5ec\ubd80\ub97c \ubc18\ub4dc\uc2dc \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <h2>\uc9c0\uc5ed \uc9c0\uc815<\/h2>\n      <p>H13\uc740 ASTM A681 \ubc0f AISI \ud45c\uc900\uc5d0 \uc815\uc758\ub41c \ubbf8\uad6d\uc2dd \uc5f4\uac04 \uacf5\uad6c\uac15 \uba85\uce6d\uc785\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/h-series-tool-steels\/\">\uc774\ub294 \ud06c\ub86c \uc5f4\uac04 \uacf5\uad6c\uac15\uc758 H \uacc4\uc5f4\uc5d0 \uc18d\ud569\ub2c8\ub2e4.<\/a>.<\/p>\n      <p><a href=\"https:\/\/aobosteel.com\/ko\/skd61-steel-technical-overview\/\">SKD61\uc740 \uc77c\ubcf8 \uc0b0\uc5c5 \ud45c\uc900\uc778 JIS G4404\uc5d0 \uc815\uc758\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc77c\ubcf8\uc2dd \uba85\uce6d\uc73c\ub85c<\/a> \uc5f4\uac04 \uacf5\uad6c \ub17c\uc758\uc5d0\uc11c H13\uacfc \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \ub300\uc751\ub429\ub2c8\ub2e4.<\/p>\n      <h2>\ud654\ud559 \uc870\uc131 \ube44\uad50<\/h2>\n      <p>\uc544\ub798 \ud45c\ub294 \ub450 \uac00\uc9c0 \ud45c\uc900\uc5d0\uc11c \uc815\uc758\ud558\ub294 \uc77c\ubc18\uc801\uc778 \uc131\ubd84 \ubc94\uc704\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead>\n            <tr><th>\uc694\uc18c<\/th><th>ASTM A681 H13 (\uc911\ub7c9 %)<\/th><th>JIS G4404 SKD61 (\uc911\ub7c9 %)<\/th><\/tr>\n          <\/thead>\n          <tbody>\n            <tr><td>Carbon (C)<\/td><td>0.32 \u2013 0.45<\/td><td>0.32 \u2013 0.42<\/td><\/tr>\n            <tr><td>\uaddc\uc18c (Si)<\/td><td>0.80 \u2013 1.25<\/td><td>0.80 \u2013 1.20<\/td><\/tr>\n            <tr><td>\ub9dd\uac04 (Mn)<\/td><td>0.20 \u2013 0.60<\/td><td>0.50 (\ucd5c\ub300\/\uacf5\uce6d)<\/td><\/tr>\n            <tr><td>\ud06c\ub86c (Cr)<\/td><td>4.75 \u2013 5.50<\/td><td>4.50 \u2013 5.50<\/td><\/tr>\n            <tr><td>\ubab0\ub9ac\ube0c\ub374 (Mo)<\/td><td>1.10 \u2013 1.75<\/td><td>1.00 \u2013 1.50<\/td><\/tr>\n            <tr><td>\ubc14\ub098\ub4d0 (V)<\/td><td>0.80 \u2013 1.20<\/td><td>0.80 \u2013 1.20<\/td><\/tr>\n            <tr><td>\uc778(P)<\/td><td>\ucd5c\ub300 0.030<\/td><td>\ucd5c\ub300 0.030<\/td><\/tr>\n            <tr><td>\ud669(S)<\/td><td>\ucd5c\ub300 0.030<\/td><td>\ucd5c\ub300 0.030<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>\ud654\ud559 \ubd84\uc57c\uc5d0\uc11c \uc0c1\ub2f9\ud55c \uc911\ubcf5\uc774 \uc788\ub2e4\ub294 \uc810\uc774 \ub450 \ub4f1\uae09\uc774 \uad6d\uc81c \ubb34\uc5ed\uc5d0\uc11c \ud754\ud788 \uc0c1\ud638 \ucc38\uc870\ub418\ub294 \uc8fc\ub41c \uc774\uc720\uc785\ub2c8\ub2e4.<\/p>\n      <p>\uae30\uacc4\uc801 \ud2b9\uc131\uc5d0 \ub300\ud55c \ucc38\uace0 \uc0ac\ud56d:<br>\uacbd\ub3c4, \uac15\ub3c4 \ubc0f \ucda9\uaca9 \uc778\uc131\uacfc \uac19\uc740 \uae30\uacc4\uc801 \ud2b9\uc131\uc740 <a href=\"https:\/\/aobosteel.com\/ko\/h13-steel-heat-treatment\/\">\uc5f4\ucc98\ub9ac \ubc0f \uc81c\uc870 \ubc29\uc2dd\uc5d0 \ud06c\uac8c \uc88c\uc6b0\ub418\uba70<\/a>\ub4f1\uae09 \uba85\uce6d\ub9cc\uc73c\ub85c \uacb0\uc815\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n      <h2>H13\uacfc SKD61\uc758 \uc720\uc0ac\uc810<\/h2>\n      <ul class=\"aobo-list\">\n        <li>\ub3d9\uc77c\ud55c \ud569\uae08 \uacc4\uc5f4\uc785\ub2c8\ub2e4. \ub450 \ub4f1\uae09 \ubaa8\ub450 \uace0\uc628 \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub3c4\ub85d \uc124\uacc4\ub41c \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374-\ubc14\ub098\ub4d0\uacc4 \uace0\uc628 \uac00\uacf5 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4.<\/li>\n        <li>\ud654\ud559\uc801 \uad6c\uc131\uc774 \uc720\uc0ac\ud569\ub2c8\ub2e4. \ud2b9\ud788 \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, \ubc14\ub098\ub4d0 \ud568\ub7c9\uc5d0\uc11c \ud569\uae08 \ubc94\uc704\uac00 \ub9e4\uc6b0 \uc720\uc0ac\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc720\uc0ac\ud55c \ud569\uae08 \uad6c\uc131 \ub54c\ubb38\uc5d0 \ub450 \uc81c\ud488\uc740 \uc885\uc885 \ub3d9\ub4f1\ud55c \ub4f1\uae09\uc73c\ub85c \ucde8\uae09\ub429\ub2c8\ub2e4.<\/li>\n        <li>\uc0ac\uc6a9 \ud658\uacbd\uc774 \uc720\uc0ac\ud569\ub2c8\ub2e4. \ub450 \ub4f1\uae09 \ubaa8\ub450 \ub2e4\uc774\uce90\uc2a4\ud305, \ub2e8\uc870, \uc5f4\uac04 \uc555\ucd9c, \ucf54\uc5b4 \ud540 \ubc0f \ub9e8\ub4dc\ub9b4\uacfc \uac19\uc740 \uae4c\ub2e4\ub85c\uc6b4 \uace0\uc628 \uac00\uacf5 \uacf5\uad6c \ud658\uacbd\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n      <\/ul>\n      <h2>H13\uacfc SKD61\uc758 \uc8fc\uc694 \ucc28\uc774\uc810<\/h2>\n      <p>\ub450 \ub4f1\uae09\uc740 \ub9e4\uc6b0 \uc720\uc0ac\ud558\uc9c0\ub9cc, \uc0ac\uc591\uc740 \uc644\uc804\ud788 \ub3d9\uc77c\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n      <ul class=\"aobo-list\">\n        <li>\ud0c4\uc18c \ud568\ub7c9 \ubc94\uc704. SKD61\uc740 \ud0c4\uc18c \ud568\ub7c9 \ubc94\uc704\uac00 \uc57d\uac04 \ub354 \uc881\uc73c\uba70 \uc0c1\ud55c\uac12\uc774 0.42%\uc778 \ubc18\uba74, H13\uc740 \ucd5c\ub300 0.45%\uae4c\uc9c0 \ud5c8\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n        <li>\ubab0\ub9ac\ube0c\ub374 \ud568\ub7c9 \uc81c\ud55c. H13 \uaddc\uaca9\uc740 \ubab0\ub9ac\ube0c\ub374\uc744 \ucd5c\ub300 1.75%\uae4c\uc9c0 \ud5c8\uc6a9\ud558\ub294 \ubc18\uba74, SKD61 \uaddc\uaca9\uc740 1.50%\ub85c \uc81c\ud55c\ud569\ub2c8\ub2e4.<\/li>\n        <li>\ud06c\ub86c \ucd5c\uc18c \ud568\ub7c9. H13\uc740 \ucd5c\uc18c \ud06c\ub86c \ud568\ub7c9\uc744 4.75%\ub85c \uc57d\uac04 \ub354 \ub192\uac8c \uaddc\uc815\ud558\uace0 \uc788\uc73c\uba70, SKD61\uc740 4.50%\ubd80\ud130 \uc2dc\uc791\ud569\ub2c8\ub2e4.<\/li>\n      <\/ul>\n      <p>\uc774\ub7ec\ud55c \ucc28\uc774\uc810\uc740 \ubbf8\ubbf8\ud558\uc9c0\ub9cc, H13\uacfc SKD61\uc774 \ub3d9\uc77c\ud55c \uc0ac\uc591\uc774 \uc544\ub2c8\ub77c \ub3d9\ub4f1\ud55c \ub4f1\uae09\uc784\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n      <h2>\ub300\uccb4 \uace0\ub824 \uc0ac\ud56d<\/h2>\n      <p>\ub9ce\uc740 \uacf5\uad6c \uc81c\uc791 \ubd84\uc57c\uc5d0\uc11c H13\uacfc SKD61\uc740 \uc2e4\uc9c8\uc801\uc778 \ucc28\uc774 \uc5c6\uc774 \uc11c\ub85c \ub300\uccb4\ud558\uc5ec \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub300\uccb4 \uc0ac\uc6a9 \uc2dc\uc5d0\ub294 \uc694\uad6c\ub418\ub294 \ud45c\uc900\uc744 \uc900\uc218\ud558\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <p>\uc608\ub97c \ub4e4\uc5b4, \ubab0\ub9ac\ube0c\ub374 \ud568\ub7c9\uc774 1.70%\uc778 H13 \ubc30\uce58(batch)\ub294 ASTM A681\uc744 \uc900\uc218\ud558\uc9c0\ub9cc, JIS G4404\uc758 SKD61 \ubab0\ub9ac\ube0c\ub374 \uc81c\ud55c\uc744 \ubc97\uc5b4\ub098\uac8c \ub429\ub2c8\ub2e4. \uc774 \uacbd\uc6b0, \ud574\ub2f9 \uc7ac\ub8cc\ub294 \ud55c \ud45c\uc900\uc5d0\ub294 \ubd80\ud569\ud558\uc9c0\ub9cc \ub2e4\ub978 \ud45c\uc900\uc5d0\ub294 \ubd80\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n      <p>\uc774\ub7ec\ud55c \uc774\uc720\ub85c \uc5d4\uc9c0\ub2c8\uc5b4\uc640 \uad6c\ub9e4 \ub2f4\ub2f9\uc790\ub294 \uacf5\uae09\ub41c \uc5f4\uc774 \ub3c4\uba74, \uad6c\ub9e4 \uc8fc\ubb38\uc11c \ub610\ub294 \ucd5c\uc885 \uace0\uac1d\uc774 \uc694\uad6c\ud558\ub294 \uc0ac\uc591\uacfc \uc77c\uce58\ud558\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n      <h2>\uacb0\ub860<\/h2>\n      <p><a href=\"https:\/\/aobosteel.com\/ko\/h13-tool-steel\/\">H13<\/a> SKD61\uc740 \ubbf8\uad6d\uacfc \uc77c\ubcf8 \ud45c\uc900\uc5d0\uc11c \uc815\uc758\ud558\ub294 \uc5f4\uac04 \uac00\uacf5 \uacf5\uad6c\uac15\uc73c\ub85c, \ud654\ud559\uc801 \uc870\uc131\uacfc \uc0ac\uc6a9 \ud658\uacbd\uc774 \ub9e4\uc6b0 \uc720\uc0ac\ud558\uc5ec \uacf5\uad6c \uc81c\uc791\uc5d0 \uc788\uc5b4 \uc885\uc885 \ub3d9\uc77c\ud55c \uc7ac\uc9c8\ub85c \ucde8\uae09\ub429\ub2c8\ub2e4.<\/p>\n      <p id=\"h-\">\uadf8\ub7ec\ub098 \ub450 \ud45c\uc900\uc774 \uc644\uc804\ud788 \ub3d9\uc77c\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-quality-verification\/\">\uc7ac\ub8cc \uc2dc\ud5d8 \uc131\uc801\uc11c\uc640 \uaddc\uaca9 \ud55c\uacc4\ub97c \ud655\uc778\ud558\uba74 \uacf5\uae09\ub41c \ubc30\uce58\uac00<\/a> \uc694\uad6c\ub418\ub294 \uba85\uce6d\uc744 \ucda9\uc871\ud558\ub294\uc9c0 \ud655\uc778\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n      <h2 id=\"h-related-pages\">\uad00\ub828 \ud398\uc774\uc9c0<\/h2>\n      <ul class=\"aobo-list\">\n        <li><a href=\"https:\/\/aobosteel.com\/ko\/tool-steel-equivalent-grades\/\">H13\uc740 1.2344\uc640 \uac19\uc740 \uac83\uc778\uac00\uc694?<\/a><\/li>\n        <li><a href=\"https:\/\/aobosteel.com\/ko\/4cr5mosiv1-tool-steel\/\">H13 vs 4Cr5MoSiV1<\/a><\/li>\n      <\/ul>\n      >\n    <\/main>\n  <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>H13 vs SKD61 Tool Steel H13 and SKD61 are two hot-work tool steel designations defined in different standards but commonly treated as equivalent grades in international tooling applications. Because they are not specified under the same system, engineers and buyers should verify chemical limits and certification before treating them as direct substitutes. For a broader [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"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":"","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-13540","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>H13 vs SKD61 Tool Steel: Are They the Same? | Aobo Steel<\/title>\n<meta name=\"description\" content=\"Compare H13 vs SKD61 tool steel. 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