{"id":18630,"date":"2026-09-17T10:04:56","date_gmt":"2026-09-17T02:04:56","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=18630"},"modified":"2026-10-24T23:58:31","modified_gmt":"2026-10-24T15:58:31","slug":"4140-vs-a2-tool-steel","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/4140-vs-a2-tool-steel\/","title":{"rendered":"4140 \ub300 A2 \uacf5\uad6c\uac15, \uc8fc\uc694 \ucc28\uc774\uc810 \ubc0f \uc120\ud0dd \uac00\uc774\ub4dc"},"content":{"rendered":"

4140 \ub300 A2 \uacf5\uad6c\uac15, \uc8fc\uc694 \ucc28\uc774\uc810 \ubc0f \uc120\ud0dd \uac00\uc774\ub4dc<\/h1>\n\n\n\n

4140<\/a> 4140\uc740 \uc778\uc131\uc774 \uc694\uad6c\ub418\ub294 \ud558\uc911 \ubd80\ud488\uc6a9 \uc911\ud0c4\uc18c \uc800\ud569\uae08 \uad6c\uc870\uc6a9 \uac15\uc785\ub2c8\ub2e4. A2\ub294 \ub0b4\ub9c8\ubaa8\uc131 \uacf5\uad6c\uc6a9 \uacf5\uae30 \uacbd\ud654 \ub0c9\uac04 \uacf5\uad6c\uac15\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc778\uc131, \uc5f0\uc131, \ud53c\ub85c \uc800\ud56d\uc131 \ubc0f \uad6c\uc870\uc801 \uac15\ub3c4\uac00 \ud544\uc694\ud55c \ubd80\ud488\uc5d0\ub294 4140 \uac15\uc7ac\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624. A2 \uacf5\uad6c\uac15<\/a> \uacf5\uad6c\uac00 \ub192\uc740 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131, \ub0a0 \uc720\uc9c0\ub825, \uadf8\ub9ac\uace0 \uc5f4\ucc98\ub9ac \ud6c4 \uc6b0\uc218\ud55c \uce58\uc218 \uc548\uc815\uc131\uc744 \ud544\uc694\ub85c \ud560 \ub54c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

4140 \uacf5\uad6c\uac15\uacfc A2 \uacf5\uad6c\uac15\uc758 \ud654\ud559\uc801 \uc870\uc131 \ube44\uad50<\/h2>\n\n\n\n

A2\uac15\uc740 \ud0c4\uc18c\uc640 \ud06c\ub86c \ud568\ub7c9\uc744 \ub192\uc5ec \ud0c4\ud654\ubb3c \uae30\ubc18\uc758 \ub0b4\ub9c8\ubaa8\uc131\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4. 4140\uac15\uc740 \uc801\ub2f9\ud55c \ud0c4\uc18c \ud568\ub7c9\uacfc \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374\uc744 \uc0ac\uc6a9\ud558\uc5ec \uac15\ub3c4, \uc778\uc131 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc694\uc18c<\/th>4140\uac15<\/th>A2 \uacf5\uad6c\uac15<\/th><\/tr><\/thead>
\ud0c4\uc18c<\/td>0.38\u20130.45%<\/td>0.95\u20131.05%<\/td><\/tr>
\ud06c\ub86c<\/td>0.80\u20131.10%<\/td>4.75\u20135.50%<\/td><\/tr>
\ubab0\ub9ac\ube0c\ub374<\/td>0.15\u20130.30%<\/td>0.90\u20131.40%<\/td><\/tr>
\ubc14\ub098\ub4d0<\/td>\uc8fc\uc694 \ud569\uae08 \uc6d0\uc18c\uac00 \uc544\ub2d9\ub2c8\ub2e4.<\/td>0.15\u20130.50%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uc131\ubd84 \ub370\uc774\ud130\ub294 \uc77c\ubc18\uc801\uc778 \ucc38\uace0\uc6a9\uc73c\ub85c\ub9cc \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc2e4\uc81c \uac12\uc740 \ud45c\uc900, \uc81c\ucca0\uc18c \ubc0f \uc0dd\uc0b0 \ubc88\ud638\uc5d0 \ub530\ub77c \ub2e4\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc815\ud655\ud55c \uac12\uc740 \uc7ac\ub8cc \uc2dc\ud5d8 \uc131\uc801\uc11c(MTC)\ub97c \ud655\uc778\ud558\uac70\ub098 Aobo Steel\uc5d0 \ubb38\uc758\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

A2\uc758 \ub354 \ub192\uc740 \ud0c4\uc18c \ubc0f \ud06c\ub86c \ud568\ub7c9\uc740 \ub2e4\uc74c\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4 \ud06c\ub86c\uc774 \ud48d\ubd80\ud55c \ud0c4\ud654\ubb3c \ud615\uc131<\/a>. \uc774\ub7ec\ud55c \ud0c4\ud654\ubb3c\uc740 \ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0a0 \uc720\uc9c0\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uc9c0\ub9cc \uc5f0\uc131\uc744 \uac10\uc18c\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n

4140\uac15\uc740 \ud0c4\ud654\ubb3c \ud615\uc131\uc5d0 \ud06c\uac8c \uc758\uc874\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ud569\uae08 \ud568\ub7c9\uc774 \ub0ae\uc544 \ub354\uc6b1 \uac15\uc778\ud55c \uae30\uc9c0 \uad6c\uc870\ub97c \uac00\uc9c0\uba70, \uc774\ub294 \ucd95, \uae30\uc5b4, \ucc28\ucd95, \ud640\ub354 \ubc0f \uae30\ud0c0 \ud558\uc911\uc744 \ubc1b\ub294 \uae30\uacc4 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

4140 \uacf5\uad6c\uac15\uacfc A2 \uacf5\uad6c\uac15\uc758 \uae30\uacc4\uc801 \ud2b9\uc131 \ube44\uad50<\/h2>\n\n\n\n

A2\ub294 4140\ubcf4\ub2e4 \ud6e8\uc52c \ub192\uc740 \uacbd\ub3c4\uc5d0 \ub3c4\ub2ec\ud558\ub294 \ubc18\uba74, 4140\uc740 \ub354 \ub098\uc740 \uc5f0\uc131\uacfc \ucda9\uaca9 \ud5c8\uc6a9\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4. \uc774\uac83\uc774 \ub450 \uac15\uc7ac \uac04\uc758 \ud575\uc2ec \uae30\uacc4\uc801 \ucc28\uc774\uc785\ub2c8\ub2e4. \uacf5\uad6c\uac15 \uce21\uc758 \ubb3c\uc131 \ub370\uc774\ud130\ub294 \ub2e4\uc74c\uc5d0\uc11c \uc218\uc9d1\ub429\ub2c8\ub2e4 A2 \uac15\uc7ac \ud2b9\uc131<\/a> \ud398\uc774\uc9c0.<\/p>\n\n\n\n

\uc131\uc9c8<\/th>4140\uac15<\/th>A2 \uacf5\uad6c\uac15<\/th><\/tr><\/thead>
\uc5b4\ub2d0\ub9c1 \uacbd\ub3c4<\/td>\uc57d 197 HB<\/td>201\u2013229 HB<\/td><\/tr>
\uc815\uaddc\ud654\ub41c \uacbd\ub3c4<\/td>\uc57d 302 HB<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \uc815\uaddc\ud654\ub418\uc9c0 \uc54a\uc74c<\/td><\/tr>
\uc0ac\uc804 \uc900\ube44 \uc0c1\ud0dc<\/td>262\u2013321 HB<\/td>\uc77c\ubc18\uc801\uc778 \uacf5\uae09 \uc870\uac74\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/td><\/tr>
\ub2f4\uae08\uc9c8 \uc0c1\ud0dc \uacbd\ub3c4<\/td>A2\ubcf4\ub2e4 \ub0ae\uc74c<\/td>\uc57d 62~65 HRC<\/td><\/tr>
\uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9 \uacbd\ub3c4<\/td>\uc778\uc131\uc744 \uc720\uc9c0\ud558\uae30 \uc704\ud574 \uacbd\ub3c4\ub97c \ub0ae\ucd98\ub2e4<\/td>\uc77c\ubc18\uc801\uc73c\ub85c 58~60 HRC<\/td><\/tr>
\uace0\uc628 \uc5f4\ucc98\ub9ac \uc608\uc2dc<\/td>\uc77c\ubd80 \uacf5\uad6c \ud640\ub354\uc758 \uacbd\uc6b0 36~40 HRC\uc785\ub2c8\ub2e4.<\/td>\uace0\uacbd\ub3c4 \uacf5\uad6c \uc801\uc6a9 \ubd84\uc57c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uac15\ub3c4\uc640 \uc5f0\uc131\uc744 \uc704\ud574:<\/p>\n\n\n\n

\uc0c1\ud0dc<\/th>\ucd5c\ub300 \uc778\uc7a5 \uac15\ub3c4<\/th>\ud56d\ubcf5 \uac15\ub3c4<\/th>\uc5f0\uc7a5<\/th><\/tr><\/thead>
A2\ub294 \uacbd\ub3c4 54.1 HRC\uc785\ub2c8\ub2e4.<\/td>1858 MPa<\/td>1822 MPa<\/td>5.0%<\/td><\/tr>
A2\ub294 \uacbd\ub3c4 46.7 HRC\uc785\ub2c8\ub2e4.<\/td>1604 MPa<\/td>1510 MPa<\/td>8.5%<\/td><\/tr>
4140 \uc5b4\ub2d0\ub9c1<\/td>655 MPa<\/td>417 MPa<\/td>25.7%<\/td><\/tr>
4140 \uc815\uaddc\ud654\ub428<\/td>1020 MPa<\/td>655 MPa<\/td>17.7%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

A2\ub294 \uace0\ud569\uae08\ubcf4\ub2e4 \uc778\uc131\uc774 \uc6b0\uc218\ud569\ub2c8\ub2e4 D\uacc4\uc5f4 \uacf5\uad6c\uac15<\/a> D2\uc640 \uac19\uc740 \uacbd\uc6b0\uc774\uc9c0\ub9cc, \ub2e4\uc74c\uacfc \uac19\uc740 \ub0b4\ucda9\uaca9\uac15\uc740 \uc544\ub2d9\ub2c8\ub2e4 S7<\/a>. 4140\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub3d9\uc801 \ud558\uc911, \ucda9\uaca9, \ube44\ud2c0\ub9bc \ubc0f \ud53c\ub85c\uc5d0 \ub354 \uc548\uc804\ud569\ub2c8\ub2e4. A2\uc758 \uc791\uc5c5 \uacbd\ub3c4 \ubc94\uc704\ub294 \ub2e4\uc74c\uc5d0 \ub098\uc5f4\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4 A2 \uacbd\ub3c4<\/a> \ud398\uc774\uc9c0.<\/p>\n\n\n\n

\ub0b4\ub9c8\ubaa8\uc131 \uce21\uba74\uc5d0\uc11c A2\ub294 \ub354 \uac15\ud55c \uc18c\uc7ac\uc785\ub2c8\ub2e4. 1% \ud0c4\uc18c\uc640 5% \ud06c\ub86c\uc73c\ub85c \uad6c\uc131\ub41c A2\ub294 \ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0a0 \uc720\uc9c0\ub825\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. 4140\uc740 \uc6b0\uc218\ud55c \ud53c\ub85c \ubc0f \ucda9\uaca9 \uc800\ud56d\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc9c0\ub9cc, \uae08\uc18d \ube14\ub7ad\ud0b9, \uc804\ub2e8 \ub610\ub294 \uc131\ud615 \uc791\uc5c5 \ud45c\uba74\uc73c\ub85c\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

4140\uacfc A2 \uacf5\uad6c\uac15\uc758 \uc5f4\ucc98\ub9ac<\/h2>\n\n\n\n

A2\uc640 4140\uc740 \uc11c\ub85c \ub2e4\ub978 \uc5f4\ucc98\ub9ac \uacbd\ub85c\ub97c \ud544\uc694\ub85c \ud569\ub2c8\ub2e4. A2\ub294 \uacf5\uae30 \uc911\uc5d0\uc11c \uacbd\ud654\ub429\ub2c8\ub2e4. 4140\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uc774 \ud544\uc694\ud569\ub2c8\ub2e4 \uc624\uc77c \ub2f4\uae08\uc9c8<\/a>. \uc774 \ucc28\uc774\ub294 \ubcc0\ud615 \uc704\ud5d8\uacfc \ucd5c\uc885 \uc801\uc6a9\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc5f4\ucc98\ub9ac \ub2e8\uacc4<\/th>4140\uac15<\/th>A2 \uacf5\uad6c\uac15<\/th><\/tr><\/thead>
\uc815\uaddc\ud654<\/td>\ub2e8\uc870 \ud6c4 \ub610\ub294 \uac00\uacf5 \uc804\uc5d0 \ud754\ud788 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td>\uad8c\uc7a5\ud558\uc9c0 \uc54a\uc74c<\/td><\/tr>
\uc5b4\ub2d0\ub9c1<\/td>830~870\u00b0C\uc5d0\uc11c \uac00\uc5f4 \ud6c4 \uc57d 480\u00b0C\uae4c\uc9c0 \ub0c9\uac01<\/td>845~900\u00b0C, \uc11c\uc11c\ud788 \ub178\ub0c9<\/td><\/tr>
\uc608\uc5f4<\/td>\uc57d 650\u00b0C\uc5d0\uc11c \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/td>\uc911\uc694 \uc628\ub3c4\ub294 \uc57d 650\u00b0C\uc785\ub2c8\ub2e4.<\/td><\/tr>
\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654<\/td>830~870\u00b0C<\/td>925\u2013980\u00b0C<\/td><\/tr>
\ub2f4\uae08\uc9c8<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \uc624\uc77c \ub2f4\uae08\uc9c8<\/td>\uc815\uc9c0\ub41c \uacf5\ub7ad\uc2dd<\/td><\/tr>
\ub728\uc784<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \ub2e8\uc77c \uc628\ub3c4<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \uc774\uc911 \uc5f4\ucc98\ub9ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/td><\/tr>
\uadf9\uc800\uc628 \ucc98\ub9ac<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td>\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uc904\uc774\uae30 \uc704\ud574 \ub54c\ub54c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

A2\uc758 \uacf5\uae30 \uacbd\ud654 \ud2b9\uc131<\/a> \ub2f4\uae08\uc9c8 \uc751\ub825\uc744 \uac10\uc18c\uc2dc\ud0a4\uace0 \uce58\uc218 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \ud380\uce58, \ub2e4\uc774, \uac8c\uc774\uc9c0 \ubc0f \ub354 \uc5c4\uaca9\ud55c \uce58\uc218 \uc81c\uc5b4\uac00 \ud544\uc694\ud55c \uacf5\uad6c<\/a>.<\/p>\n\n\n\n

4140\uac15\uc740 \uc624\uc77c \ub2f4\uae08\uc9c8\uc744 \ud1b5\ud574 \uac15\ub3c4\ub97c \ub192\uc774\uc9c0\ub9cc, \uae09\uaca9\ud55c \ub0c9\uac01\uc740 \ubcc0\ud615\uacfc \ub4a4\ud2c0\ub9bc\uc744 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7fc\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0, \ud6c4\uacbd\ud654 \uce58\uc218 \uc81c\uc5b4\ubcf4\ub2e4 \uc778\uc131\uc774 \ub354 \uc911\uc694\ud55c \uae30\uacc4 \ubd80\ud488, \ud640\ub354 \ubc0f \uc9c0\uc9c0 \ubd80\ud488\uc5d0\ub294 \uc5ec\uc804\ud788 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub728\uc784\ub3c4 \ub2e4\ub985\ub2c8\ub2e4. A2\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ud654\ub41c \uc870\uc9c1\uc744 \uc548\uc815\ud654\ud558\uace0 \ucde8\uc131\uc744 \uc904\uc774\uae30 \uc704\ud574 \uc774\uc911 \ub728\uc784\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. 4140\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uac15\ub3c4\uc640 \uc778\uc131\uc758 \ubaa9\ud45c \uade0\ud615\uc744 \ub2ec\uc131\ud558\uae30 \uc704\ud574 \ub2e8\uc77c \ub728\uc784\uc744 \uac70\uce69\ub2c8\ub2e4. 4140\uc758 \uacbd\uc6b0 230\u2013370\u00b0C \ub728\uc784 \ubc94\uc704\ub294 \ucda9\uaca9 \uc778\uc131\uc744 \uac10\uc18c\uc2dc\ud0ac \uc218 \uc788\uc73c\ubbc0\ub85c \uc77c\ubc18\uc801\uc73c\ub85c \ud53c\ud574\uc57c \ud569\ub2c8\ub2e4. \ub450 \uacbd\ub85c\uc758 \ub728\uc784 \uc628\ub3c4\ub294 \ub2e4\uc74c\uc5d0 \ub3c4\ud45c\ub85c \ub098\uc640 \uc788\uc2b5\ub2c8\ub2e4 \ub2f4\uae08\uc9c8 \ucc28\ud2b8<\/a>, \uadf8\ub9ac\uace0 A2 \uc21c\uc11c\ub294 \ub2e4\uc74c\uc5d0 \uc790\uc138\ud788 \uc124\uba85\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4 A2 \uc5f4\ucc98\ub9ac \uac00\uc774\ub4dc<\/a>.<\/p>\n\n\n\n

A2\ub294 \ub354 \ub192\uc740 \ud0c4\uc18c \ubc0f \ud569\uae08 \ud568\ub7c9\uc73c\ub85c \uc778\ud574 \ub354 \ub9ce\uc740 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc601\ud558 \ub610\ub294 \uadf9\uc800\uc628 \ucc98\ub9ac<\/a> \uce58\uc218 \uc548\uc815\uc131\uc774 \uc911\uc694\ud55c \uacbd\uc6b0 \ub54c\ub54c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ud45c\uc900 4140 \uad6c\uc870\uc6a9 \uc751\uc6a9 \ubd84\uc57c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc774 \ub2e8\uacc4\ub97c \ud544\uc694\ub85c \ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

4140\uacfc A2 \uacf5\uad6c\uac15\uc758 \uc77c\ubc18\uc801\uc778 \uc801\uc6a9 \ubd84\uc57c<\/h2>\n\n\n\n

4140\uc740 \ud558\uc911 \uc9c0\uc9c0 \ubd80\ud488 \ubc0f \uc9c0\uc9c0 \uacf5\uad6c\uc5d0 \uc120\ud0dd\ub429\ub2c8\ub2e4. A2\ub294 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc774 \uc694\uad6c\ub418\ub294 \uc791\uc5c5 \uacf5\uad6c \ud45c\uba74\uc5d0 \uc120\ud0dd\ub429\ub2c8\ub2e4. \ub458 \ub2e4 \ub3d9\uc77c\ud55c \uc120\ud0dd \ub9f5\uc758 \uc11c\ub85c \ub2e4\ub978 \uc9c0\uc810\uc5d0 \uc704\uce58\ud558\uba70, \uc774\ub294 \ub2e4\uc74c\uc5d0 \uc81c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4 \uc6a9\ub3c4\ubcc4 \uc120\uc815<\/a> \uadf8\ub9ac\uace0 \ub2e4\uc74c\uc5d0 A2 \ud2b9\uc131<\/a> \ucc38\uc870.<\/p>\n\n\n\n

\uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc720\ud615<\/th>4140\uac15<\/th>A2 \uacf5\uad6c\uac15<\/th><\/tr><\/thead>
\uae30\uacc4 \ubd80\ud488<\/td>\ud06c\ub7ad\ud06c\ucd95, \ucee4\ub125\ud305 \ub85c\ub4dc, \ucc28\ucd95, \uae30\uc5b4, \ud53c\ub2c8\uc5b8, \uc2a4\ud50c\ub77c\uc778<\/td>\uc77c\ubc18\uc801\uc778 \uc120\ud0dd\uc740 \uc544\ub2d9\ub2c8\ub2e4<\/td><\/tr>
\uace0\uac15\ub3c4 \ubd80\ud488<\/td>\uc720\uc815 \uc2dc\ucd94\uc6a9 \ub4dc\ub9b4 \ube44\ud2b8, \ucc29\ub959 \uc7a5\uce58 \ubd80\ud488, \ud56d\uacf5\uae30 \uae30\uccb4 \ubd80\ud488, \uc555\ub825 \uc6a9\uae30<\/td>\uc77c\ubc18\uc801\uc778 \uc120\ud0dd\uc740 \uc544\ub2d9\ub2c8\ub2e4<\/td><\/tr>
\ud328\uc2a4\ub108 \ubc0f \ud558\ub4dc\uc6e8\uc5b4<\/td>\uace0\uac15\ub3c4 \ubcfc\ud2b8, \uc2a4\ud130\ub4dc, \ucea1 \uc2a4\ud06c\ub958, \ub80c\uce58, \uc9d1\uac8c<\/td>\uc77c\ubc18\uc801\uc778 \uc120\ud0dd\uc740 \uc544\ub2d9\ub2c8\ub2e4<\/td><\/tr>
\uacf5\uad6c\uc2e4 \uc9c0\uc6d0 \ubd80\ud488<\/td>\uacf5\uad6c \ud640\ub354, \uc0dd\ud06c, \ub4dc\ub9b4 \uc9c0\uadf8, \ubc31\ucee4 \ud50c\ub808\uc774\ud2b8, \uae08\ud615 \ubca0\uc774\uc2a4, \ud640\ub354 \ube14\ub85d, \ub2e4\uc774 \uc288<\/td>\ub0b4\ub9c8\ubaa8\uc131\uc774 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/td><\/tr>
\ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c<\/td>\uc9c0\uc6d0 \ubd80\ud488\uc73c\ub85c \uc81c\ud55c\ub428<\/td>\ube14\ub7ad\ud0b9 \ub2e4\uc774, \ubca4\ub529 \ub2e4\uc774, \ucf54\uc774\ub2dd \ub2e4\uc774, \ub4dc\ub85c\uc789 \ub2e4\uc774, \ud2b8\ub9ac\ubc0d \ub2e4\uc774<\/td><\/tr>
\uc815\ubc00 \uacf5\uad6c<\/td>\uc81c\ud55c\uc801 \uc0ac\uc6a9<\/td>\ub9c8\uc2a4\ud130 \uac8c\uc774\uc9c0, \ub4dc\ub9b4 \ubd80\uc2f1, \ub110\ub9c1 \uacf5\uad6c, \ub9e4\ub2c8\ud3f4\ub4dc \ud50c\ub808\uc774\ud2b8<\/td><\/tr>
\uce7c\ub0a0\uacfc \ub098\uc774\ud504<\/td>\ub9c8\ubaa8\uac00 \uc2ec\ud55c \uc808\uc0ad\ub0a0\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/td>\uc804\ub2e8\ub0a0, \uc2ac\ub9ac\ud130 \uce7c, \ud68c\uc804 \uce7c, \ubaa9\uacf5 \uce7c<\/td><\/tr>
\ub9c8\ubaa8 \ubd80\ud488<\/td>\uc77c\ubc18 \uad6c\uc870 \ub9c8\ubaa8 \ubd80\ud488<\/td>\ucea0, \ucea0 \ud314\ub85c\uc6cc, \uac00\uc774\ub4dc, \uc2ac\ub77c\uc774\ub529 \ubca0\uc5b4\ub9c1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ubcf8\uccb4, \ud640\ub354, \ubc31\ud0b9 \ud50c\ub808\uc774\ud2b8, \uae08\ud615 \ubca0\uc774\uc2a4 \ub610\ub294 \uad6c\uc870 \uc9c0\uc9c0 \ubd80\ud488\uc5d0\ub294 4140 \uc7ac\uc9c8\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624. \ud380\uce58, \ub2e4\uc774 \uc5d0\uc9c0, \ube14\ub808\uc774\ub4dc, \uc131\ud615\uba74, \uce21\uc815\uba74 \ub610\ub294 \ub9c8\ubaa8\uc5d0 \ubbfc\uac10\ud55c \uacf5\uad6c \ubd80\ud488\uc5d0\ub294 A2 \uc7ac\uc9c8\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

4140 \ub300 A2 \uacf5\uad6c\uac15 \ube60\ub978 \uc7ac\ub8cc \uc120\ud0dd \uaddc\uce59<\/h2>\n\n\n\n

4140\uacfc A2 \uc911\uc5d0\uc11c \uc120\ud0dd\ud560 \ub54c \ub2e4\uc74c\uc73c\ub85c \uacb0\uc815\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624 \uacbd\ub3c4\ub9cc\uc73c\ub85c<\/a>. \uc8fc\uc694 \ud30c\uc190 \ubaa8\ub4dc\uc5d0 \ub530\ub77c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

\uc8fc\uc694 \uace0\uc7a5 \uc704\ud5d8<\/th>\ub354 \ub098\uc740 \uc120\ud0dd<\/th>\uc774\uc720<\/th><\/tr><\/thead>
\ube44\ud2c0\ub9bc, \ud53c\ub85c \uade0\uc5f4, \ucda9\uaca9 \ub610\ub294 \uad6c\uc870\uc801 \ubcc0\ud615<\/a><\/td>4140<\/td>\uc778\uc131, \uc5f0\uc131 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131\uc774 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr>
\ub9c8\ubaa8, \ub0a0\uce74\ub85c\uc6c0 \uc800\ud558 \ub610\ub294 \uc808\uc0ad\/\uc131\ud615 \uc815\ud655\ub3c4 \uc190\uc2e4<\/a><\/td>A2<\/td>\ub354 \ub192\uc740 \uacbd\ub3c4, \ub354 \ub098\uc740 \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \ub354\uc6b1 \ub6f0\uc5b4\ub09c \uce58\uc218 \uc548\uc815\uc131<\/td><\/tr>
\ud640\ub354, \uae08\ud615 \ubc1b\uce68\ub300, \uc9c0\uc9c0\ud310 \ub610\ub294 \uc9c0\uc9c0\uccb4<\/td>4140<\/td>\uad6c\uc870\uc801 \uc9c0\uc9c0\ub825\uc744 \uc81c\uacf5\ud560 \ub9cc\ud07c \uac15\ud558\uace0 \uacac\uace0\ud569\ub2c8\ub2e4.<\/td><\/tr>
\ud380\uce58, \ub2e4\uc774 \uc5d0\uc9c0, \uc804\ub2e8 \ube14\ub808\uc774\ub4dc, \uac8c\uc774\uc9c0 \ub610\ub294 \ub9c8\ubaa8\uba74<\/td>A2<\/td>\ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c \uc811\ucd09\uba74\uc6a9\uc73c\ub85c \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uae30\uacc4 \ubd80\ud488 \ubc0f \uc9c0\uc9c0 \uad6c\uc131 \uc694\uc18c\uc5d0\ub294 4140 \uac15\uc744 \uc9c0\uc815\ud558\uc2ed\uc2dc\uc624. \uc5f4\ucc98\ub9ac \ud6c4 \ub9c8\ubaa8\uc5d0 \uc800\ud56d\ud558\uace0 \uce58\uc218\ub97c \uc720\uc9c0\ud574\uc57c \ud558\ub294 \ub0c9\uac04 \uacf5\uad6c\uc5d0\ub294 A2 \uacf5\uad6c\uac15\uc744 \uc9c0\uc815\ud558\uc2ed\uc2dc\uc624. \ub354 \ub113\uc740 \ub0c9\uac04 \uacf5\uad6c \uc81c\ud488\uad70\uc740 \ub2e4\uc74c\uc5d0\uc11c \ub2e4\ub8f9\ub2c8\ub2e4 \ub0c9\uac04 \uac00\uacf5 \uacf5\uad6c\uac15<\/a>, \uadf8\ub9ac\uace0 \uacb0\uc815 \ub2e8\uacc4\ub294 \ub2e4\uc74c\uc5d0 \uc81c\uc2dc\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4 \uacf5\uad6c\uac15 \uc120\ud0dd \ubc29\ubc95<\/a>.<\/p>\n\n\n\n

\uad00\ub828 \ube44\uad50\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4 A2 \ub300 D2<\/a> \ub0b4\ub9c8\ubaa8\uc131\uc5d0 \ub300\ud574, H13<\/a> \uc5f4\uac04 \uc791\uc5c5 \uc11c\ube44\uc2a4\uc5d0 \ub300\ud574, \uadf8\ub9ac\uace0 S7<\/a> \ucda9\uaca9 \ud558\uc911\uc5d0 \ub300\ud574.<\/p>\n\n\n\n

Aobo Steel\uc740 \ub300\ub7c9 \uc0b0\uc5c5 \uc8fc\ubb38\uc744 \uc704\ud574 \ud480\ub9bc \uc0c1\ud0dc\uc758 A2 \/ 1.2363 \/ SKD12 \ub0c9\uac04 \uacf5\uad6c\uac15\uc744 \ud658\ubd09 \ubc0f \ud3c9\uac15\uc73c\ub85c \uacf5\uae09\ud569\ub2c8\ub2e4. 4140\uc740 \ub2f9\uc0ac \uacf5\uad6c\uac15 \ubc94\uc704\ub97c \ubc97\uc5b4\ub09c \uad6c\uc870\uc6a9 \ub4f1\uae09\uc774\ubbc0\ub85c, \uc774 \ud398\uc774\uc9c0\ub294 \uc7ac\uace0 \ubaa9\ub85d\uc774 \uc544\ub2cc \uc120\ud0dd \ucc38\uace0 \uc790\ub8cc\uc785\ub2c8\ub2e4. \uacf5\uad6c\uac15 \ub4f1\uae09\uc758 \ud06c\uae30 \ubc94\uc704\uc640 \ub9ac\ub4dc \ud0c0\uc784\uc740 \ub2f9\uc0ac\uc5d0\uc11c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4 \uacf5\uad6c\uac15 \uacf5\uae09 \ub2a5\ub825 \ud398\uc774\uc9c0\uc5d0\uc11c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/a>.<\/p>\n\n\n\n

\uc774 \uac00\uc774\ub4dc\uc758 \ube44\uad50 \ub370\uc774\ud130\ub294 \uace0\uac1d\uc744 \uc704\ud55c \uc77c\ubc18 \uae30\uc220 \ucc38\uace0 \uc790\ub8cc\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4. \uae30\uacc4\uc801 \uac12\uc740 \ub2e8\uba74 \ud06c\uae30, \uc5f4\ucc98\ub9ac \ubc29\uc2dd \ubc0f \uc2dc\ud5d8 \ubc29\ud5a5\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ucd5c\uc885 \ub4f1\uae09 \uc120\ud0dd\uc740 \uc7ac\ub8cc \uc2dc\ud5d8 \uc131\uc801\uc11c(MTC) \ub610\ub294 \ub2f9\uc0ac \uae30\uc220\ud300\uacfc \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

\uad00\ub828 \ud398\uc774\uc9c0<\/h3>\n\n\n\n

A2 \ube44\uad50:<\/strong> A2 \ub300 O1<\/a><\/p>\n\n\n\n

\ucc38\uace0 \ud398\uc774\uc9c0:<\/strong> \uacf5\uad6c\uac15 \ub3d9\ub4f1 \ub4f1\uae09<\/a> \u00b7 4140 \uac15\uc7ac \ud2b9\uc131<\/a> \u00b7 D2 \uacf5\uad6c\uac15<\/a><\/p>\n\n\n\n

\ub4f1\uae09 \uacc4\uc5f4:<\/strong> \uacf5\uad6c\uac15 \ub4f1\uae09<\/a> \u00b7 \uacf5\uad6c\uac15 \uc7ac\uc9c8 \ucc3e\uae30<\/a><\/p>\n\n\n\n

\uc870\uc131 \ubc0f \uacbd\ub3c4 \uc218\uce58\ub294 A2 \/ 1.2363 \/ SKD12 \ubc0f 4140 \/ 42CrMo4\uc758 \uc77c\ubc18\uc801\uc778 \uacf5\ud45c \uac12\uc785\ub2c8\ub2e4. \uc815\ud655\ud55c \ubc94\uc704\ub294 \ub0a9\ud488 \ub85c\ud2b8\uc758 \uc81c\ucca0\uc18c \uc131\uc801\uc11c\uc640 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>","protected":false},"excerpt":{"rendered":"

4140 vs A2 Tool Steel, Key Differences and Selection Guide 4140 is a medium-carbon, low-alloy structural steel for tough, loaded parts. A2 is an air-hardening cold work tool steel for wear-resistant tooling. Choose 4140 when the part needs toughness, ductility, fatigue resistance, and structural strength. Choose A2 tool steel when the tool needs high hardness, […]<\/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":"normal-width-container","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":"default","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-18630","page","type-page","status-publish","hentry"],"yoast_head":"\n4140 vs A2 Tool Steel: Differences, Hardness, Selection<\/title>\n<meta name=\"description\" content=\"4140 and A2 compared by composition, hardness, heat treatment and applications. 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A2 is an air-hardening cold work tool steel for wear-resistant tooling. Choose 4140 when the part needs toughness, ductility, fatigue resistance, and structural strength. Choose A2 tool steel when the tool needs high hardness,…","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Evan","author_link":"https:\/\/aobosteel.com\/ko\/blog\/author\/admin\/"},"rttpg_comment":0,"rttpg_category":null,"rttpg_excerpt":"4140 vs A2 Tool Steel, Key Differences and Selection Guide 4140 is a medium-carbon, low-alloy structural steel for tough, loaded parts. A2 is an air-hardening cold work tool steel for wear-resistant tooling. Choose 4140 when the part needs toughness, ductility, fatigue resistance, and structural strength. 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