{"id":877,"date":"2025-12-01T09:11:49","date_gmt":"2025-12-01T01:11:49","guid":{"rendered":"https:\/\/haoyumaterial.com\/?p=877"},"modified":"2025-12-01T09:13:03","modified_gmt":"2025-12-01T01:13:03","slug":"4140-stainless-steel-guide-properties-uses-and-key-differences","status":"publish","type":"post","link":"https:\/\/haoyumaterial.com\/ko\/4140-stainless-steel-guide-properties-uses-and-key-differences\/","title":{"rendered":"4140 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uac00\uc774\ub4dc: \ud2b9\uc131, \uc6a9\ub3c4 \ubc0f \uc8fc\uc694 \ucc28\uc774\uc810"},"content":{"rendered":"

\uc65c 4140 \uac15\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac00 \uc544\ub2c8\uba70 \uac15\uc778\ud55c \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \ud569\uae08\uc73c\ub85c \ub6f0\uc5b4\ub09c \uac15\ub3c4, \ubd80\uc2dd \uc800\ud56d\uc131 \ubc0f \ub2e4\uc591\ud55c \uc0b0\uc5c5 \uc6a9\ub3c4\ub97c \uac00\uc9c4\uc9c0.<\/p>\n\n\n\n

\uc544\ub9c8 \ub4e4\uc5b4\ubcf8 \uc801\uc774 \uc788\uc744 \uac70\uc608\uc694 4140 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/strong> \uacf5\ubc29\uc774\ub098 \ud3ec\ub7fc\uc5d0\uc11c \u201c\ub179\uc774 \uc548 \ub098\ub294\u201d \uc635\uc158\uc73c\ub85c \uc5b8\uae09\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc8e0. \ud558\uc9c0\ub9cc \uc9c4\uc2e4\uc740 \uc774\ub807\uc2b5\ub2c8\ub2e4: 4140\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774 \uc544\ub2d9\ub2c8\ub2e4<\/strong>, \uc774\uac78 \ud63c\ub3d9\ud558\uba74 \ubd80\uc2dd \ubb38\uc81c\uc640 \uc131\ub2a5 \uc800\ud558\ub85c \ud070 \ube44\uc6a9\uc774 \ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uac04\ub2e8\ud55c \uac00\uc774\ub4dc\uc5d0\uc11c \ud63c\ub780\uc744 \ud574\uc18c\ud558\uace0, 4140 \uac15<\/strong> \uc758 \ub3c5\ud2b9\ud568\uc744 \uc124\uba85\ud558\uba70, \uc65c \uc774 \uac15\uc774 \uac15\ub3c4 \uba74\uc5d0\uc11c \uac15\ub825\ud55c \ud569\uae08\uc778\uc9c0 \uc54c\ub824\ub4dc\ub9b4\uac8c\uc694\u2014\ube44\ub85d 304 \uac19\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ub4f1\uae09\ucc98\ub7fc \ubd80\uc2dd\uc5d0 \uac15\ud55c \uc601\uc6c5\uc740 \uc544\ub2c8\uc9c0\ub9cc\uc694. \ub2e4\uc74c \ud504\ub85c\uc81d\ud2b8\uc5d0 \ub9de\ub294 \uac15\uc744 \uace0\ubbfc \uc5c6\uc774 \uc120\ud0dd\ud558\uace0 \uc2f6\ub2e4\uba74, \ubc14\ub85c \uc774\uacf3\uc774 \uc815\ub2f5\uc785\ub2c8\ub2e4. \uc2dc\uc791\ud574\ubcfc\uae4c\uc694!<\/p>\n\n\n\n

4140 \uac15\uc774\ub780 \ubb34\uc5c7\uc778\uac00? \uad6c\uc131 \ubc0f \ubd84\ub958<\/h2>\n\n\n\n

\uae30\ubcf8\ubd80\ud130 \uc815\ub9ac\ud574\ubd05\uc2dc\ub2e4: 4140 \uac15\uc740 \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \ud569\uae08\uac15<\/strong>\uc785\ub2c8\ub2e4\u2014\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774 \uc544\ub2c8\uba70, \ub4e4\uc5c8\ub358 \uac83\uacfc \ub2e4\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uac15\uc740 \ud06c\ub86c\ubab0\ub9ac \uacc4\uc5f4<\/strong>, \uc5d0 \uc18d\ud558\uba70, \uc8fc\uc694 \ud569\uae08 \uc6d0\uc18c\uc778 \ud06c\ub86c(\ubcf4\ud1b5 \uc57d 0.8~1.1%)\uacfc \ubab0\ub9ac\ube0c\ub374(\uc57d 0.15~0.25%)\uc5d0\uc11c \uc774\ub984\uc774 \uc720\ub798\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ud0c4\uc18c(0.38~0.43%), \ub9dd\uac04, \uc2e4\ub9ac\ucf58, \uae30\ud0c0 \ubbf8\ub7c9 \uc6d0\uc18c\uc640 \ud568\uaed8 4140\uc740 \ub192\uc740 \uac15\ub3c4\uc640 \uc778\uc131\uc744 \uc704\ud574 \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

AISI 4140 \uac15\uc758 \ud575\uc2ec \ud654\ud559 \uc131\ubd84\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n

\uc694\uc18c<\/th>\uc77c\ubc18 \ud568\ub7c9(%)<\/th><\/tr><\/thead>
\ud0c4\uc18c (C)<\/td>0.38 \u2013 0.43<\/td><\/tr>
\ud06c\ub86c( Cr )<\/td>0.8 \u2013 1.1<\/td><\/tr>
\ubab0\ub9ac\ube0c\ub374 (Mo)<\/td>0.15 \u2013 0.25<\/td><\/tr>
\ub9dd\uac04 (Mn)<\/td>0.75 \u2013 1.0<\/td><\/tr>
\uc2e4\ub9ac\ucf58 (Si)<\/td>0.15 \u2013 0.35<\/td><\/tr>
\uc778(P) \ubc0f \ud669(S)<\/td>\u22640.035, \u22640.04 (\ucd5c\ub300)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uadf8\ub807\ub2e4\uba74 4140\uc744 \ud2b9\ubcc4\ud558\uac8c \ub9cc\ub4dc\ub294 \uac83\uc740 \ubb34\uc5c7\uc77c\uae4c\uc694? 4140\uc740 \ub2e4\uc74c\uc744 \ucd94\uac00\ud558\uc5ec \ud0c4\uc18c\uac15\uacfc \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc0ac\uc774\uc5d0\uc11c \uacac\uace0\ud55c \uade0\ud615\uc744 \uc774\ub8f9\ub2c8\ub2e4. \ud569\uae08 \uc6d0\uc18c<\/strong> \uc774\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc601\uc5ed\uc73c\ub85c \uc644\uc804\ud788 \ub118\uc5b4\uac00\uc9c0 \uc54a\uc73c\uba74\uc11c \uac15\ub3c4\uc640 \ub0b4\uc5f4\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud63c\ub780\uc758 \uc8fc\uc694 \uc6d0\uc778: \uc0ac\ub78c\ub4e4\uc740 \ub54c\ub54c\ub85c 4140\uc744 \u201c\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\u201d\uc774\ub77c\uace0 \ubd80\ub985\ub2c8\ub2e4. \uc65c \uadf8\ub7f4\uae4c\uc694? \ud06c\ub86c\uc744 \ud568\uc720\ud558\uace0 \uc788\uae30 \ub54c\ubb38\uc778\ub370, \ud06c\ub86c\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ub0b4\uc2dd\uc131\uacfc \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc, 4140\uc740 \uc57d 1%\uc758 \ud06c\ub86c\ub9cc \ud568\uc720\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/strong>, \uc774\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c \ubd84\ub958\ub418\uae30 \uc704\ud574 \ud544\uc694\ud55c 10.5% \uc774\uc0c1\uc758 \ud06c\ub86c\ubcf4\ub2e4 \ud6e8\uc52c \uc801\uc740 \uc591\uc785\ub2c8\ub2e4. \uacb0\uacfc\uc801\uc73c\ub85c 4140\uc740 \ubd80\uc2dd \ubc29\uc9c0 \uae30\ub2a5\uc774 \uc5c6\uc73c\uba70, \uc2e4\uc81c\ub85c \uc801\uc808\ud55c \ud45c\uba74 \ubcf4\ud638\ub098 \ucf54\ud305 \uc5c6\uc774\ub294 \ub179\uc2ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc758 \uc138\uacc4\uc5d0\uc11c 4140\uc740 \ud655\uace0\ud558\uac8c \ub2e4\uc74c \ubc94\uc8fc\uc5d0 \uc18d\ud569\ub2c8\ub2e4. \uc800\ud569\uae08 \uace0\uac15\ub3c4\uac15<\/strong>\u2014\ub54c\ub85c\ub294 \u201c\ud06c\ub85c\ubab0\ub9ac\uac15\u201d\uc774\ub77c\uace0\ub3c4 \ubd88\ub9ac\uba70\u2014\ub0b4\uc2dd\uc131\ubcf4\ub2e4\ub294 \ub0b4\uad6c\uc131\uc73c\ub85c \uac00\uce58\ub97c \uc778\uc815\ubc1b\uc2b5\ub2c8\ub2e4. \uc774 \uac15\ucca0\uc740 \ub2e4\uc74c\uc73c\ub85c \ub192\uc774 \ud3c9\uac00\ub418\ub294 \ub2e4\uc6a9\ub3c4 \uac15\ucca0\uc785\ub2c8\ub2e4. \uc778\uc131\uacfc \ud53c\ub85c \uac15\ub3c4<\/strong>, \ud0c4\uc18c\uac15\uc774 \ubd80\uc871\ud558\uc9c0\ub9cc \uc644\uc804\ud55c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774 \ud544\uc694\ud558\uc9c0 \uc54a\uc740 \uacf3\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

VastMaterial\uc5d0\uc11c\ub294 \uace0\uac1d\ub4e4\uc5d0\uac8c 4140\uc774 \ub2e4\uc74c\uc784\uc744 \uc790\uc8fc \uc0c1\uae30\uc2dc\ud0b5\ub2c8\ub2e4. \uc8fc\ub825 \ud569\uae08\uac15<\/strong>, \ud2b9\ud788 \uc790\ub3d9\ucc28 \ubc0f \uc0b0\uc5c5 \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub418\uba70, 304 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \uac19\uc740 \ubd80\uc2dd \ubc29\uc9c0 \uc194\ub8e8\uc158\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ucc28\uc774\uc810\uc744 \uc544\ub294 \uac83\uc740 \uc791\uc5c5\uc5d0 \uc801\ud569\ud55c \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\uace0 \ub098\uc911\uc5d0 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ubb38\uc81c\ub97c \ud53c\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

4140\uac15\uc758 \uc8fc\uc694 \ud2b9\uc131: \uac15\ub3c4, \uc778\uc131, \ub0b4\uc2dd\uc131<\/h2>\n\n\n\n

4140\uac15\uc740 \uc778\uc0c1\uc801\uc778 \uae30\uacc4\uc801 \uac15\ub3c4\ub85c \ub450\ub4dc\ub7ec\uc9d1\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ud56d\ubcf5 \uac15\ub3c4<\/strong> \uc57d 60,000 psi \ubc0f \uc778\uc7a5 \uac15\ub3c4<\/strong> \uc5f4\ucc98\ub9ac\uc5d0 \ub530\ub77c 90,000~110,000 psi \uc0ac\uc774\uc785\ub2c8\ub2e4. \ub610\ud55c \uace0\uccb4 \uc2e0\uc7a5<\/strong> (\uc57d 20% \uc5f0\uc2e0\uc728)\ub85c, \ud30c\uc190 \uc804\uc5d0 \ub298\uc5b4\ub0a0 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud558\uba70, \uacbd\ub3c4<\/strong> 150~200 HB \ubc94\uc704\uc758 \uacbd\ub3c4\ub97c \uac00\uc9c0\uba70, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4\uc5d0\ub294 \ub354 \ub192\uc740 \uac12\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774\uc640 \uad00\ub828\ud558\uc5ec \ub0b4\uc5f4\uc131<\/strong>, 4140\uc740 \uc5f4\uc5d0 \uac15\ud574 \uc5d4\uc9c4 \ubd80\ud488\uc774\ub098 \ub4dc\ub9b4 \uce7c\ub77c\uc640 \uac19\uc740 \uace0\uc751\ub825 \ud658\uacbd\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \uadf8 \ub9c8\ubaa8 \uc800\ud56d<\/strong> \ud06c\ub86c\uacfc \ubab0\ub9ac\ube0c\ub374 \ud568\ub7c9 \ub355\ubd84\uc5d0 \ud53c\ub85c \uc800\ud56d\uc131\ub3c4 \ub192\uc544 \ubc18\ubcf5\uc801\uc778 \uc751\ub825\uc774\ub098 \uc0ac\uc774\ud074\uc774 \ud544\uc694\ud55c \uacbd\uc6b0\uc5d0\ub3c4 \ucd5c\uc801\uc758 \uc120\ud0dd\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud558\uc9c0\ub9cc \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ub2ec\ub9ac 4140\uc758 \ubd80\uc2dd \uc800\ud56d<\/strong> \ub0b4\uc2dd\uc131\uc740 \uadf8\ub2e4\uc9c0 \ub192\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc77c\ubc18 \ud0c4\uc18c\uac15\ubcf4\ub2e4\ub294 \ub179\uc5d0 \uac15\ud558\uc9c0\ub9cc, 304\ub098 316\uacfc \uac19\uc740 \uc778\uae30 \uc788\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ub4f1\uae09\uc758 \ub179 \ubc29\uc9c0 \uc131\ub2a5\uc5d0\ub294 \ubbf8\uce58\uc9c0 \ubabb\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc2b5\uae30\ub098 \ud654\ud559\ubb3c\uc9c8\uc5d0 \ub178\ucd9c\ub418\ub294 \uac00\ud639\ud55c \ud658\uacbd\uc5d0\uc11c\ub294 \uc9c4\uc815\ud55c \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ub300\uc548\uc744 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ubc00\ub3c4 \uce21\uba74\uc5d0\uc11c \ubc00\ub3c4<\/strong>, 4140\uc740 \uc57d 7.85 g\/cm\u00b3\ub85c \ud569\uae08\uac15\uc5d0\uc11c \ud45c\uc900\uc801\uc778 \uc218\uc900\uc785\ub2c8\ub2e4. \ub610\ud55c \uc6b0\uc218\ud55c \uc6a9\uc811\uc131<\/strong>, \uc73c\ub85c\ub3c4 \uc54c\ub824\uc838 \uc788\uc9c0\ub9cc, \uade0\uc5f4 \ubc29\uc9c0\ub97c \uc704\ud574 \uc801\uc808\ud55c \uc608\uc5f4 \ubc0f \uc6a9\uc811 \ud6c4 \ucc98\ub9ac\uac00 \uad8c\uc7a5\ub429\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc131\ud615\uc131<\/strong>, \uc740 \uac00\uacf5\uc774 \uac00\ub2a5\ud558\uc9c0\ub9cc \uc5f0\uac15\ubcf4\ub2e4\ub294 \ub35c \uc720\uc5f0\ud558\uba70, \ud480\ub9bc \ucc98\ub9ac \uc2dc \uac00\uacf5\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

****:<\/p>\n\n\n\n

    \n
  • \ub192\uc740 \ud56d\ubcf5\uac15\ub3c4 \ubc0f \uc778\uc7a5\uac15\ub3c4 (60,000~110,000 psi)<\/li>\n\n\n\n
  • \uc6b0\uc218\ud55c \uc5f0\uc2e0\uc728(~20%) \ubc0f \uacbd\ub3c4(150-200 HB+)<\/li>\n\n\n\n
  • \uac15\ud55c \ub0b4\uc5f4\uc131 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131<\/li>\n\n\n\n
  • \ubcf4\ud1b5 \uc218\uc900\uc758 \ub0b4\uc2dd\uc131\u2014\uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc218\uc900 \uc544\ub2d8<\/li>\n\n\n\n
  • \ubc00\ub3c4 \uc57d 7.85 g\/cm\u00b3<\/li>\n\n\n\n
  • \uc801\uc808\ud55c \ucde8\uae09 \uc2dc \uc6b0\uc218\ud55c \uc6a9\uc811\uc131<\/li>\n\n\n\n
  • \ud480\ub9bc \ucc98\ub9ac \ud6c4 \ud569\ub9ac\uc801\uc778 \uc131\ud615\uc131 \ubc0f \uac00\uacf5\uc131<\/li>\n<\/ul>\n\n\n\n

    4140 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc5f4\ucc98\ub9ac \ubc0f \uac00\uacf5<\/h2>\n\n\n\n

    \uac00\uacf5\uc131\uacfc \uc751\ub825 \uc644\ud654\ub97c \uc704\ud55c \ud480\ub9bc \ucc98\ub9ac<\/h3>\n\n\n\n

    4140 \uac15\uc758 \ud480\ub9bc \ucc98\ub9ac\ub294 \ud2b9\uc815 \uc628\ub3c4\uae4c\uc9c0 \uac00\uc5f4\ud55c \ud6c4 \ucc9c\ucc9c\ud788 \ub0c9\uac01\ud558\ub294 \uacfc\uc815\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc740 \uae08\uc18d\uc744 \ubd80\ub4dc\ub7fd\uac8c \ud558\uc5ec \uac00\uacf5\uc744 \uc27d\uac8c \ud558\uace0, \uc774\uc804 \uc791\uc5c5\uc5d0\uc11c \ubc1c\uc0dd\ud55c \ub0b4\ubd80 \uc751\ub825\uc744 \uc904\uc5ec\uc90d\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ubd80\ud488\uc744 \ub2e4\ub8e8\ub294 \ub300\ud55c\ubbfc\uad6d\uc758 \uc791\uc5c5\uc7a5\uc5d0\uc11c\ub294 \ud480\ub9bc \ucc98\ub9ac\uac00 \uc808\uc0ad\uc744 \uc6d0\ud65c\ud558\uac8c \ud558\uace0 \uacf5\uad6c \uc218\uba85\uc744 \uc5f0\uc7a5\ud558\ub294 \ub370 \ud575\uc2ec\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uac15\ub3c4 \uade0\ud615\uc744 \uc704\ud55c \ub2f4\uae08\uc9c8 \ubc0f \ub728\uc784<\/h3>\n\n\n\n

    4140\uc758 \uac15\ub3c4\uc640 \uc778\uc131\uc744 \ucd5c\ub300\ud55c \ud65c\uc6a9\ud558\ub824\uba74 \uc77c\ubc18\uc801\uc73c\ub85c \uace0\uc628\uc5d0\uc11c \uae09\uc18d \ub0c9\uac01(\ub2f4\uae08\uc9c8)\ud55c \ud6c4 \ub0ae\uc740 \uc628\ub3c4\uc5d0\uc11c \ub728\uc784 \ucc98\ub9ac\ub97c \ud569\ub2c8\ub2e4. \uc774 \uc870\ud569\uc740 \ub192\uc740 \ud56d\ubcf5 \uac15\ub3c4, \ud5a5\uc0c1\ub41c \uacbd\ub3c4, \uc6b0\uc218\ud55c \ud53c\ub85c \uc800\ud56d\uc131\uc744 \uc81c\uacf5\ud558\uba74\uc11c\ub3c4 \uac15\uc7ac\uac00 \ucde8\uc131\ud654\ub418\uc9c0 \uc54a\uac8c \ud569\ub2c8\ub2e4. \ub0b4\uad6c\uc131\uc774 \uc911\uc694\ud55c \uc790\ub3d9\ucc28 \ubc0f \uc911\uc7a5\ube44 \ubd84\uc57c\uc5d0\uc11c \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uc6a9\uc811 \uc2dc \ucd5c\uc801\uc758 \ubc29\ubc95\uacfc \ud754\ud55c \uc2e4\uc218<\/h3>\n\n\n\n

    4140 \uc6a9\uc811 \uc2dc\uc5d0\ub294 \uc8fc\uc758\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc6a9\uc811 \uc804 \uc18c\uc7ac\ub97c \uc57d 150~200\u00b0C\ub85c \uc608\uc5f4\ud558\uba74 \uade0\uc5f4 \ubc29\uc9c0\uc5d0 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4\uc5d0\ub294 \uac15\ub3c4\uc640 \uc778\uc131\uc744 \ud68c\ubcf5\ud558\uae30 \uc704\ud574 \ud6c4\uc5f4\ucc98\ub9ac\uac00 \uc790\uc8fc \ud544\uc694\ud569\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4 \uae09\uc18d \ub0c9\uac01\uc744 \ud53c\ud558\uc5ec \uc751\ub825 \ucd95\uc801\uacfc \ubcc0\ud615\uc744 \ucd5c\uc18c\ud654\ud558\uc138\uc694. 4140\uacfc \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \ube44\uad50\ud560 \ub54c, 4140\uc740 \ub0b4\uc2dd\uc131\uc740 \ub0ae\uc9c0\ub9cc \uae30\uacc4\uc801 \uac15\ub3c4\ub294 \ub354 \ub192\ub2e4\ub294 \uc810\uc744 \uae30\uc5b5\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uac00\uacf5 \ud301 \ubc0f \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc\uc758 \ube44\uad50<\/h3>\n\n\n\n

    4140 \uac00\uacf5\uc740 \ub300\ubd80\ubd84\uc758 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc808\uc0ad\ubcf4\ub2e4 \uc77c\ubc18\uc801\uc73c\ub85c \ub354 \uc27d\uc2b5\ub2c8\ub2e4. \ud480\ub9bc \ucc98\ub9ac \ud6c4\uc5d0\ub294 \ud45c\uc900 \uacf5\uad6c\uc640 \uc808\uc0ad\uc720\ub85c \uc798 \uac00\uacf5\ub429\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2f4\uae08\uc9c8 \ubc0f \ub728\uc784 \ud6c4\uc5d0\ub294 \ub354 \ub2e8\ub2e8\ud574\uc838 \uacf5\uad6c \ub9c8\ubaa8\uac00 \ube68\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ub2ec\ub9ac \uac00\uacf5 \uacbd\ud654\uac00 \uc2ec\ud558\uc9c0 \uc54a\uc9c0\ub9cc, \uc808\uc0ad \uacf5\uad6c\ub97c \uc790\uc8fc \uc5f0\ub9c8\ud558\uba74 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0\uc11c 4140\uc73c\ub85c \uc804\ud658\ud558\ub294 \ub300\ud55c\ubbfc\uad6d \uc81c\uc870\uc5c5\uccb4\ub294 \uacf5\uad6c \uc218\uba85\uc774 \ub354 \uae38\uc5b4\uc9c8 \uac83\uc73c\ub85c \uae30\ub300\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc808\uc0ad \uc911 \uc5f4 \ubc1c\uc0dd\uc5d0 \uc8fc\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \n\n\n\n

    \uc774\ub7ec\ud55c \uc5f4\ucc98\ub9ac \ubc0f \uac00\uacf5\uc758 \uae30\ubcf8\uc744 \uc774\ud574\ud558\uba74 4140 \uac15\uc7ac\ub97c \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c \ucd5c\ub300\ud55c \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6a9\uc811, \uac00\uacf5, \uc5f4\ucc98\ub9ac \ub4f1 \uc5b4\ub5a4 \uc791\uc5c5\uc774\ub4e0 \uc62c\ubc14\ub978 \uc811\uadfc\ubc95\uc774 \uac15\ub3c4, \ub0b4\uad6c\uc131, \uc0ac\uc6a9 \ud3b8\uc758\uc131\uc744 \uade0\ud615 \uc788\uac8c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    4140 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc801\uc6a9 \ubd84\uc57c: \uc790\ub3d9\ucc28, \uc11d\uc720 \ubc0f \uac00\uc2a4, \ud56d\uacf5\uc6b0\uc8fc, \uc911\uc7a5\ube44<\/h2>\n\n\n\n

    4140 \uac15\uc7ac\ub294 \ub192\uc740 \uac15\ub3c4\uc640 \ud53c\ub85c \uc800\ud56d\uc131 \ub355\ubd84\uc5d0 \ub2e4\uc591\ud55c \uc0b0\uc5c5\uc5d0\uc11c \ub110\ub9ac \uc120\ud0dd\ub429\ub2c8\ub2e4. \uc790\ub3d9\ucc28 \ubd84\uc57c\uc5d0\uc11c\ub294 \ucd95, \ud06c\ub7ad\ud06c\ucd95, \uae30\uc5b4 \ub4f1 \uc2a4\ud2b8\ub808\uc2a4\uac00 \ud070 \ubd80\uc704\uc5d0 \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc11d\uc720 \ubc0f \uac00\uc2a4 \uc0b0\uc5c5\uc5d0\uc11c\ub294 \ud639\ub3c5\ud55c \ud658\uacbd\uacfc \uc2ec\ud55c \ub9c8\ubaa8\ub97c \uacac\ub514\uae30 \uc704\ud574 \ub4dc\ub9b4 \uce7c\ub77c \ub4f1 \ub2e4\uc6b4\ud640 \uacf5\uad6c\uc5d0 4140\uc774 \ud65c\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ud56d\uacf5\uc6b0\uc8fc \ubd84\uc57c\uc5d0\uc11c\ub294 \ucc29\ub959\uc7a5\uce58 \ubd80\ud488\uacfc \uad6c\uc870 \ubd80\ud488\uc5d0 4140\uc774 \uc0ac\uc6a9\ub418\uc5b4 \uac15\uc7ac\uc758 \uc778\uc131\uacfc \ud53c\ub85c \uc800\ud56d\uc131\uc758 \uc774\uc810\uc744 \ub204\ub9bd\ub2c8\ub2e4. \uc911\uc7a5\ube44\uc5d0\uc11c\ub294 \ubb34\uac70\uc6b4 \ud558\uc911\uc744 \uacac\ub38c\uc57c \ud558\ub294 \ucd95, \ubcfc\ud2b8, \ud540 \ub4f1\uc5d0 \ud754\ud788 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ud53c\ub85c \uc800\ud56d\uc131\uc774 \ub6f0\uc5b4\ub098 4140\uc740 \uad6d\ubc29 \ubc0f \ubaa8\ud130\uc2a4\ud3ec\uce20 \ubd84\uc57c\uc5d0\uc11c\ub3c4 \uc778\uae30 \uc788\ub294 \uc120\ud0dd\uc785\ub2c8\ub2e4. \uc11c\uc2a4\ud39c\uc158 \ubd80\ud488, \ub4dc\ub77c\uc774\ube0c \uc0e4\ud504\ud2b8 \ub4f1 \ubc18\ubcf5\uc801\uc778 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0\uc11c \uc6b0\uc218\ud55c \uc131\ub2a5\uc744 \ubc1c\ud718\ud558\uc5ec \uc218\uba85\uc744 \uc5f0\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ud558\uc9c0\ub9cc 4140\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774 \uc544\ub2c8\ubbc0\ub85c \ub3d9\uc77c\ud55c \ub0b4\uc2dd\uc131\uc744 \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc2b5\uae30\ub098 \ud654\ud559\ubb3c\uc9c8\uc774 \ub9ce\uc740 \ud658\uacbd\uc5d0\uc11c\ub294 \ub179\uacfc \ubd80\uc2dd\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 304 \ub610\ub294 416\uacfc \uac19\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ub300\uccb4\uc7ac\uac00 \ub354 \uc801\ud569\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c 4140\uc740 \uac15\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc5d0\uc11c\ub294 \ub6f0\uc5b4\ub098\uc9c0\ub9cc, \ubd80\uc2dd\uc774 \uc8fc\uc694 \uace0\ub824\uc0ac\ud56d\uc77c \ub54c\ub294 \ucd5c\uc801\uc758 \uc120\ud0dd\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n\n\n\n

    4140\uacfc \ub300\uccb4\uc7ac: \ube44\uad50 \ubc0f \ube44\uc6a9 \ud6a8\uc728\uc131<\/h2>\n\n\n\n

    4140 \uac15\uc744 4130, 4340\uacfc \uac19\uc740 \ub2e4\ub978 \ud569\uae08\uc774\ub098 304, 416\uacfc \uac19\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ub4f1\uae09\uacfc \ube44\uad50\ud560 \ub54c, \ud504\ub85c\uc81d\ud2b8\uc5d0 \ud544\uc694\ud55c \ube44\uc6a9, \uac15\ub3c4, \ub0b4\uc2dd\uc131 \uc694\uad6c \uc0ac\ud56d\uc758 \uade0\ud615\uc744 \ub9de\ucd94\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ud569\uae08\uac15<\/th>\uc8fc\uc694 \uac15\uc810<\/th>\ubd80\uc2dd \uc800\ud56d\uc131<\/th>\ube44\uc6a9<\/th>\ucd5c\uc801\uc758 \uc0ac\uc6a9 \uc0ac\ub840<\/th><\/tr><\/thead>
    4140<\/strong><\/td>\ub192\uc740 \uac15\ub3c4, \uc6b0\uc218\ud55c \uc778\uc131<\/td>\uc911\uac04 \uc218\uc900(\uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc544\ub2d8)<\/td>\uc911\uac04<\/td>\uc790\ub3d9\ucc28 \ubd80\ud488, \uae30\uacc4\ub958<\/td><\/tr>
    4130<\/strong><\/td>\uc57d\uac04 \ub0ae\uc740 \uac15\ub3c4<\/td>\uc911\uac04<\/td>\ubcf4\ud1b5 \ub354 \uc800\ub834\ud568<\/td>\ub808\uc774\uc2f1 \ud504\ub808\uc784, \uacbd\ub7c9 \uad6c\uc870<\/td><\/tr>
    4340<\/strong><\/td>\ub354 \ub192\uc740 \uac15\ub3c4<\/td>\uc911\uac04<\/td>\ub192\uc740<\/td>\ud56d\uacf5\uc6b0\uc8fc \ubd80\ud488, \uc911\uc7a5\ube44<\/td><\/tr>
    304 \uc2a4\ud14c\uc778\ub9ac\uc2a4<\/strong><\/td>\uc6b0\uc218\ud55c \ubd80\uc2dd \uc800\ud56d\uc131<\/td>\ub192\uc74c<\/td>\ub192\uc740<\/td>\uc2dd\ud488, \uc758\ub8cc, \uc544\uc6c3\ub3c4\uc5b4 \uc7a5\ube44<\/td><\/tr>
    416 \uc2a4\ud14c\uc778\ub9ac\uc2a4<\/strong><\/td>\uc6b0\uc218\ud55c \uac00\uacf5\uc131, \uc77c\uc815 \uac15\ub3c4<\/td>4140\ubcf4\ub2e4 \uc6b0\uc218\ud568<\/td>\ub192\uc740<\/td>\ubc38\ube0c \ubd80\ud488, \ud328\uc2a4\ub108<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    \ube44\uc6a9 \ub300\ube44 \uc131\ub2a5 \uc808\ucda9<\/h3>\n\n\n\n
      \n
    • 4140<\/strong>\u00a0\ud569\ub9ac\uc801\uc778 \uac00\uaca9\uc5d0 \ub6f0\uc5b4\ub09c \uc778\uc131\uacfc \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
    • \ub0b4\uc2dd\uc131\uc774 \uc911\uc694\ud558\ub2e4\uba74, 304 \ub610\ub294 416\uacfc \uac19\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc635\uc158\uc774 \ub354 \ube44\uc2f8\ub354\ub77c\ub3c4 4140\ubcf4\ub2e4 \uc6b0\uc704\uc5d0 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n
    • \ucd08\uace0\uac15\ub3c4\uac00 \ud544\uc694\ud558\ub2e4\uba74 4340\uc774 \ub354 \ub098\uc740 \uc120\ud0dd\uc77c \uc218 \uc788\uc9c0\ub9cc, \uac00\uaca9\uc774 \uc0c1\uc2b9\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
    • 4130<\/strong>\u00a0\uc608\uc0b0 \uce5c\ud654\uc801\uc778 \ub300\uc548\uc774\uc9c0\ub9cc \uac15\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc57d\uac04 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n

      \uc801\ud569\ud55c \ud569\uae08 \uc120\ud0dd\ud558\uae30<\/h3>\n\n\n\n
        \n
      • \uc120\ud0dd\ud558\uc138\uc694\u00a04140<\/strong>\u00a0\ub9c8\ubaa8\uc5d0\ub294 \ub178\ucd9c\ub418\uc9c0\ub9cc \ubd80\uc2dd\uc774 \uc801\uc740 \ubd80\ud488\uc5d0 \uacac\uace0\ud558\uace0 \uacbd\uc81c\uc801\uc778 \ud569\uae08\uc744 \uc6d0\ud55c\ub2e4\uba74 \ucd94\ucc9c\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
      • \uc120\ud0dd\u00a0\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/strong>\u00a0\ubd80\uc2dd\uacfc \uc678\uad00\uc774 \uc6d0\uc7ac\ub8cc \uac15\ub3c4\ubcf4\ub2e4 \ub354 \uc911\uc694\ud560 \ub54c.<\/li>\n\n\n\n
      • \uc120\ud0dd\u00a04340<\/strong>\u00a0\ucd5c\ub300 \uac15\ub3c4\uc640 \ud53c\ub85c \uc800\ud56d\uc131\uc774 \ucd94\uac00 \ube44\uc6a9\uc744 \uc815\ub2f9\ud654\ud560 \ub54c.<\/li>\n\n\n\n
      • \uace0\ub824\ud558\ub2e4\u00a04130<\/strong>\u00a0\uc801\ub2f9\ud55c \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \uac00\uc9c4 \uacbd\ub7c9, \ube44\uc6a9 \uc808\uac10\ud615 \uad6c\uc870\uc5d0 \uc801\ud569.<\/li>\n<\/ul>\n\n\n\n

        \uc6a9\ub3c4\uc640 \uc608\uc0b0\uc744 \uc815\ud655\ud788 \uc54c\uba74 \uc131\ub2a5\uc744 \uc800\ud574\ud558\uac70\ub098 \uacfc\ub3c4\ud55c \ube44\uc6a9\uc744 \uc9c0\ubd88\ud558\uc9c0 \uc54a\uace0\ub3c4 \uc774 \ud569\uae08\ub4e4 \uc911\uc5d0\uc11c \ube60\ub974\uac8c \uacb0\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

        4140 \uac15\uc7ac\uc758 \uc18c\uc2f1 \ubc0f \ucd5c\uc801 \ud65c\uc6a9 \ubc29\ubc95<\/h2>\n\n\n\n

        4140 \uac15\uc7ac\ub97c \ucc3e\uc744 \ub54c\ub294 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \ub4f1\uae09\uacfc \ud615\ud0dc\ub97c \uc544\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c 4140\uc740 \ubd09, \uc6d0\ud615, \ud310\uc7ac, \ub2e8\uc870 \ud615\ud0dc\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4. \uacf5\uae09\uc5c5\uccb4\uac00 ASTM \ub610\ub294 AMS\uc640 \uac19\uc740 \uc801\uc808\ud55c \uc778\uc99d\uc11c\ub97c \uc81c\uacf5\ud558\uc5ec \uac15\uc7ac\uac00 \uc0b0\uc5c5 \ud45c\uc900\uc744 \ucda9\uc871\ud558\ub294\uc9c0 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

        \ub300\ud55c\ubbfc\uad6d\uc5d0\uc11c 4140\uc744 \uc870\ub2ec\ud560 \uacbd\uc6b0, VastMaterial\uacfc \uac19\uc740 \uc5c5\uccb4\ub294 \ud488\uc9c8 \ubcf4\uc99d\uacfc \uc9c0\uc18d \uac00\ub2a5\ud55c \uc6b4\uc601\uc5d0 \uc911\uc810\uc744 \ub461\ub2c8\ub2e4. \uc774\ub4e4\uc740 \ubaa8\ub4e0 \ubc30\uce58\uc5d0 \ub300\ud574 \uae30\uacc4\uc801 \ud2b9\uc131, \ud654\ud559 \uc131\ubd84, \ucd94\uc801 \uac00\ub2a5\uc131\uc744 \uac80\uc0ac\ud558\uc5ec \uc911\uc694\ud55c \uc6a9\ub3c4\uc5d0\ub3c4 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uc18c\uc7ac\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

        \ud2b9\uc815 \uaddc\uaca9\uc774\ub098 \ub9de\ucda4 \uc81c\uc791\uc774 \ud544\uc694\ud560 \uacbd\uc6b0 \uc7ac\uace0 \ubc0f \ub0a9\uae30 \uae30\uac04\uc774 \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc808\ub2e8, \uc5f4\ucc98\ub9ac, \uac00\uacf5 \uc11c\ube44\uc2a4 \ub4f1 \uc720\uc5f0\ud55c \uc635\uc158\uc744 \uc81c\uacf5\ud558\ub294 \uacf5\uae09\uc5c5\uccb4\uc640 \ud611\ub825\ud558\uba74 \uc2dc\uac04\uc744 \uc808\uc57d\ud558\uace0 \ud504\ub85c\uc81d\ud2b8\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \uc9c4\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

        \ube60\ub978 \ud301:<\/strong><\/p>\n\n\n\n

          \n
        • \ud56d\uc0c1 \uc81c\uac15 \uc2dc\ud5d8 \uc131\uc801\uc11c \ub610\ub294 \uc18c\uc7ac \uc778\uc99d\uc11c\ub97c \uc694\uccad\ud558\uc138\uc694.<\/li>\n\n\n\n
        • \ud569\uae08\uac15\uc5d0 \uacbd\ud5d8\uc774 \ud48d\ubd80\ud55c \uacf5\uae09\uc5c5\uccb4\ub97c \uc120\ud0dd\ud558\uc5ec \ud488\uc9c8 \ubb38\uc81c\ub97c \ubc29\uc9c0\ud558\uc138\uc694.<\/li>\n\n\n\n
        • \ud504\ub85c\uc81d\ud2b8 \uacc4\ud68d \uc2dc \uc7ac\uace0 \ud604\ud669\uacfc \ub0a9\uae30 \uc77c\uc815\uc744 \uace0\ub824\ud558\uc138\uc694.<\/li>\n\n\n\n
        • \uc815\ud655\ud55c \uc694\uad6c\uc5d0 \ub9de\ub294 \ub9de\ucda4 \uaddc\uaca9 \ubc0f \ub9c8\uac10 \ucc98\ub9ac\ub97c \uc9c0\uc6d0\ud558\ub294 \uacf5\uae09\uc5c5\uccb4\ub97c \ucc3e\uc73c\uc138\uc694.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

          Discover why 4140 steel is not stainless but a tough chromoly alloy with superior strength corrosion resistance and versatile industrial […]<\/p>\n","protected":false},"author":1,"featured_media":878,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":"","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":"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":"","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-4)","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-4)","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-4)","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":""},"categories":[1],"tags":[72,76,73,75,74],"class_list":["post-877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs","tag-4140-steel","tag-automotive-oil-gas-applications","tag-chromoly-alloy-steel","tag-non-stainless-steel","tag-strength-toughness"],"_links":{"self":[{"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/posts\/877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/comments?post=877"}],"version-history":[{"count":1,"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/posts\/877\/revisions"}],"predecessor-version":[{"id":879,"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/posts\/877\/revisions\/879"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/media\/878"}],"wp:attachment":[{"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/media?parent=877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/categories?post=877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haoyumaterial.com\/ko\/wp-json\/wp\/v2\/tags?post=877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}