{"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 \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\ub3c4 \ub4e4\uc5c8\uc744 \uac83\uc785\ub2c8\ub2e4 4140 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8<\/strong> \uacf5\uc7a5\ub4e4 \ubc0f \ud3ec\ub7fc\uc5d0\uc11c \uc790\uc8fc \ud68c\uc790\ub418\uace4 \ud558\uba70 \ub54c\ub85c\ub294 \u201c\ubd80\uc2dd \ubc29\uc9c0\u201d \uc635\uc158\uc73c\ub85c\ub3c4 \uc5b8\uae09\ub418\uace4 \ud569\ub2c8\ub2e4. \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>, \uadf8\ub9ac\uace0 \uc774\ub97c \ud63c\ub3d9\ud558\uba74 \ubd80\uc2dd \ubb38\uc81c\uc640 \uc131\ub2a5 \uc800\ud558\uc5d0 \ud070 \ube44\uc6a9\uc774 \ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc9e7\uc740 \uac00\uc774\ub4dc\uc5d0\uc11c \ud63c\ub780\uc744 \uc81c\uac70\ud558\uace0 4140 \uac15<\/strong> \uc758 \uace0\uc720\ud568\uc744 \ubd84\ud574\ud558\uace0 \uc65c \uc774\uac83\uc774 \uac15\ub3c4 \uba74\uc5d0\uc11c \uac15\ub825\ud55c \ud569\uae08\uc778 \uc774\uc720\ub97c \uc124\uba85\ud569\ub2c8\ub2e4\u2014\ube44\ub85d \uc2a4\ud14c\uc778 \ub4f1\uae09\uc778 304\ucc98\ub7fc \ubd80\uc2dd \uc800\ud56d\uc758 \uc601\uc6c5\uc740 \uc544\ub2d0 \uc218 \uc788\uc9c0\ub9cc\uc694. \ub2e4\uc74c \ud504\ub85c\uc81d\ud2b8\ub97c \uc704\ud55c \uc62c\ubc14\ub978 \uac15\uc744 \uace0\ub974\ub824\uba74 \ucd94\uce21 \uc5c6\uc774 \uc774\uacf3\uc774 \ubc14\ub85c \ub2f9\uc2e0\uc758 \uae38\uc785\ub2c8\ub2e4. \uc2dc\uc791\ud574 \ubcf4\uc8e0!<\/p>\n\n\n\n

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

\uc6b0\uc120 \uae30\ubcf8\uc744 \uba85\ud655\ud788 \ud558\uc790: 4140 \uac15\uc740 \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \ud569\uae08 \uac15<\/strong>\u2014\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac00 \uc544\ub2c8\uba70, \ub2f9\uc2e0\uc774 \ub4e4\uc5c8\uc744\uc9c0\ub3c4 \ubaa8\ub974\ub294 \uac83\uacfc \ub2ec\ub9ac. \uadf8\uac83\uc740 \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \uacc4\uc5f4\uc5d0 \uc18d\ud558\uba70<\/strong>, \uff0c \uc8fc\uc694 \ud569\uae08 \uc6d0\uc18c\ub85c \uc798 \uc54c\ub824\uc9c4 \uc774\ub984\uc5d0\uc11c \ube44\ub86f\ub418\uc5c8\uc2b5\ub2c8\ub2e4: \ud06c\ub86c(\uc77c\ubc18\uc801\uc73c\ub85c \uc57d 0.8\u20131.1%)\uacfc \ubab0\ub9ac\ube0c\ub374(\uc57d 0.15\u20130.25%). \ud0c4\uc18c(0.38\u20130.43%), \ub9dd\uac04, \uc2e4\ub9ac\ucf58, \uadf8\ub9ac\uace0 \ub2e4\ub978 \ubbf8\ub7c9 \uc6d0\uc18c\ub4e4\uacfc \ud568\uaed8, 4140\uc740 \uace0\uac15\ub3c4\uc640 \uc778\uc131\uc744 \ubaa9\ud45c\ub85c \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

AISI 4140 \uac15\uc758 \ud575\uc2ec \ud654\ud559 \uad6c\uc131\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n

\uc694\uc18c<\/th>\uc77c\ubc18 \ub0b4\uc6a9(%)<\/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(\uc778) & S(Sulfur) \ud669<\/td>\u22640.035, \u22640.04(\ucd5c\ub300)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uc790, 4140\uc744 \ucc28\ubcc4\ud654\uc2dc\ud0a4\ub294 \uc810\uc740 \ubb34\uc5c7\uc77c\uae4c? \ud0c4\uc18c\uac15\uacfc \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc0ac\uc774\uc758 \uade0\ud615\uc744 \uac15\ud558\uac8c \uc720\uc9c0\ud558\uba74\uc11c\ub3c4 \ud569\uae08 \uc6d0\uc18c\ub4e4<\/strong> \uac15\ub3c4\uc640 \ub0b4\uc5f4\uc131\uc744 \ub192\uc774\uba74\uc11c\ub3c4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc601\uc5ed\uc73c\ub85c \uc644\uc804\ud788 \ub118\uc5b4\uac00\uc9c0 \uc54a\ub294.<\/p>\n\n\n\n

\ud575\uc2ec \uc6d0\uc778 \ud63c\ub780\uc758 \ud55c \uac00\uc9c0: \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\ub0d0\ud558\uba74 \uadf8\uac83\uc774 \ubd80\uc2dd \uc800\ud56d\uc131\uacfc \uc5f0\uad00\ub41c \ud06c\ub86c\uc744 \ud3ec\ud568\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098, 4140\uc740 \uc57d 1% \ud06c\ub85c\ubbb4\ub9cc \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4<\/strong>, \ud6e8\uc52c \ub354 \uc801\uc740 \ud06c\ub86c 10.5% \uc774\uc0c1\uc774 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uac15\uc73c\ub85c \uc790\uaca9\uc744 \uc5bb\ub294 \ub370 \ud544\uc694\ud55c \uac83\uc774 \uc544\ub2c8\ub77c, 4140\uc740 \ubd80\uc2dd\uc5d0 \uac15\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4\u2014\uc0ac\uc2e4 \uc801\uc808\ud55c \ud45c\uba74 \ubcf4\ud638\ub098 \ucf54\ud305\uc774 \uc5c6\uc73c\uba74 \ub179\uc2ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc758 \uc138\uacc4\uc5d0\uc11c 4140\uc740 \ub2e8\ub2e8\ud788 \uc790\ub9ac \uc7a1\uace0 \uc788\ub2e4 \uc800\ud569\uae08 \uace0\uac15\ub3c4 \uac15\uc7ac<\/strong>\uac00\ub054 \u201c\ud06c\ub86c-\ubab0\ub9ac\ub4d0 \uc2a4\ud2f8\u201d\uc774\ub77c\uace0 \ubd88\ub9ac\ub294 \uac83\u2014\ubd80\uc2dd \uc800\ud56d\ubcf4\ub2e4\ub294 \ub0b4\uad6c\uc131\uc73c\ub85c \uac00\uce58\uac00 \ud3c9\uac00\ub418\ub294 \uac83\uc73c\ub85c, \ub2e4\uc7ac\ub2e4\ub2a5\ud55c \uac15\uc7ac\ub85c \uadf8 \uac00\uce58\uac00 \ub192\uc544 its a versatile steel prized for its \uc778\uc131\/\uac15\uc778\ud568 \ubc0f \ud53c\ub85c\uac15\ub3c4<\/strong>, \uc77c\ubc18\uc801\uc73c\ub85c \ud0c4\uc18c\uac15\uc774 \ubbf8\uce58\uc9c0 \ubabb\ud558\ub294 \uc601\uc5ed\uc5d0\uc11c \uc790\uc8fc \uc0ac\uc6a9\ub418\uc9c0\ub9cc \uc804\uccb4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac00 \ud544\uc694\ud558\uc9c0\ub294 \uc54a\uc740 \uacbd\uc6b0.<\/p>\n\n\n\n

VastMaterial\uc5d0\uc11c \uc6b0\ub9ac\ub294 \uace0\uac1d\uc5d0\uac8c 4140\uc774 \ub2e4\uc74c\uacfc \uac19\ub2e4\ub294 \uac83\uc744 \uc790\uc8fc \uc0c1\uae30\uc2dc\ud0b5\ub2c8\ub2e4. \uc6cc\ud06c\ud558\uc2a4 \ud569\uae08\uac15<\/strong>, \ud2b9\ud788 \uc790\ub3d9\ucc28 \ubc0f \uc0b0\uc5c5 \ubd84\uc57c\uc758 \uc801\uc6a9\uc5d0\uc11c 304 \uc2a4\ud14c\uc778\ub9ac\uc2a4\ucc98\ub7fc \ubd80\uc2dd \ubc29\uc9c0 \uc194\ub8e8\uc158\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc774 \ucc28\uc774\ub97c \uc544\ub294 \uac83\uc740 \uc791\uc5c5\uc5d0 \ub9de\ub294 \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\uace0 \uc55e\uc73c\ub85c\uc758 \uc608\uae30\uce58 \uc54a\uc740 \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, \ubd80\uc2dd \uc800\ud56d\uc131<\/h2>\n\n\n\n

4140 \uac15\ucca0\uc740 \ub180\ub78d\ub3c4\ub85d \uac15\ub825\ud55c \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. \u5c48\u670d \uac15\ub3c4<\/strong> \uc57d 60,000 psi \uc815\ub3c4\uc774\uba70 \uadf8\ub9ac\uace0 \uc778\uc7a5 \uac15\ub3c4<\/strong> \uc5f4\ucc98\ub9ac\uc5d0 \ub530\ub77c 90,000\uc5d0\uc11c 110,000 psi \uc0ac\uc774\uc785\ub2c8\ub2e4. \ub610\ud55c \uace0\uccb4\ub97c \ubcf4\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4 \uc5f0\uc2e0<\/strong> (\uc57d 20%) \uc774\ub294 \ub04a\uc5b4\uc9c0\uae30 \uc804\uc5d0 \ub298\uc5b4\ub0a0 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud558\uba70 \uacbd\ub3c4<\/strong> \ub2f4\ud669\uacfc \ub2f4\uae08\uc9c8 \ud6c4\uc5d0\ub3c4 150\uc5d0\uc11c 200 HB \ubc94\uc704\uc774\uba70, \ub354 \ub192\uc740 \uac12\uc73c\ub85c\ub3c4 \ub098\ud0c0\ub09c\ub2e4.<\/p>\n\n\n\n

\ub2e4\ub8e8\ub2e4 \uc5f4 \uc800\ud56d<\/strong>, 4140\uc740 \uc5f4\ucc98\ub9ac\uc5d0 \uac15\ud574 \uc5d4\uc9c4 \ubd80\ud488\uc774\ub098 \ub4dc\ub9b4 \uce7c\ub85c \uac19\uc740 \uace0\uc2a4\ud2b8\ub808\uc2a4 \ud658\uacbd\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \uadf8\uac83\uc758 wear resistance<\/strong> \ud06c\ub86c\uacfc \ubab0\ub9ac\ube0c\ub370\ub118 \ud568\ub7c9 \ub355\ubd84\uc5d0 \ub2e8\ub2e8\ud558\uace0 \ud53c\ub85c \uc800\ud56d\ub3c4 \ub192\uc5ec \uc8fc\ubbc0\ub85c \ubc18\ubcf5\ub41c \ud558\uc911\uc774\ub098 \uc0ac\uc774\ud074\uc774 \uad00\uc5ec\ub420 \ub54c \ucd5c\uc0c1\uc73c\ub85c \uc120\ud0dd\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uadf8\ub7ec\ub098 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uacfc \ub2ec\ub9ac 4140\uc740 \ubd80\uc2dd \uc800\ud56d\uc131<\/strong> \ubcf4\ud1b5 \uc218\uc900\uc5d0 \ubd88\uacfc\ud569\ub2c8\ub2e4. \uc77c\ubc18 \ud0c4\uc18c\uac15\ubcf4\ub2e4 \ub179\uc5d0 \uac15\ud558\uc9c0\ub9cc 304 \ub610\ub294 316\uacfc \uac19\uc740 \uc77c\ubc18\uc801\uc778 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ub4f1\uae09\uc758 \ub179 \ubc29\uc9c0 \ud2b9\uc131\uacfc\ub294 \uc77c\uce58\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc2b5\uae30\ub098 \ud654\ud559\ubb3c\uc9c8\uc5d0 \ub178\ucd9c\ub418\ub294 \ud5d8\ud55c \ud658\uacbd\uc5d0\uc11c\ub294 \uc9c4\uc815\ud55c \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ub300\uc548\uc744 \uc6d0\ud560 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uad00\uc810\uc5d0\uc11c \ubc00\ub3c4<\/strong>, 4140\uc740 \uc57d 7.85 g\/cm\u00b3\ub85c \ud569\uae08\uac15\uc73c\ub85c\uc11c \uaf64 \ud45c\uc900\uc801\uc774\ub2e4. \ub610\ud55c \uc54c\ub824\uc838 \uc788\ub2e4. \uc6a9\uc811\uc131\uc774 \uc88b\uc74c<\/strong>, \uadf8\ub7ec\ub098 \uade0\uc5f4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc801\uc808\ud55c \uc608\uc5f4 \ubc0f \uc6a9\uc811 \ud6c4 \ucc98\ub9ac\ub97c \uad8c\uc7a5\ud569\ub2c8\ub2e4. \u2219 as for \uac00\uacf5\uc131<\/strong>, \uadf8\uac83\uc740 \uc791\ub3d9\uc740 \ud558\uc9c0\ub9cc \uc21c\uc218\uac15\ubcf4\ub2e4 \ub35c \uc720\uc5f0\ud558\uace0, \uc5b4\ub2d0\ub9c1 \uc2dc \uac00\uacf5\uc131\uc774 \uac1c\uc120\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 \u2013 110,000 psi)<\/li>\n\n\n\n
  • \uc88b\uc740 \uc5f0\uc2e0\uc728 (~20%)\uacfc \uacbd\ub3c4 (150-200 HB+)<\/li>\n\n\n\n
  • \uac15\ud55c \uc5f4 \ubc0f \ud53c\ub85c \uc800\ud56d\uc131<\/li>\n\n\n\n
  • \uc911\uac04 \uc815\ub3c4\uc758 \ubd80\uc2dd \uc800\ud56d\uc131\u2014\uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc218\uc900\uc740 \uc544\ub2d8<\/li>\n\n\n\n
  • \ubc00\ub3c4 ~7.85 g\/cm\u00b3<\/li>\n\n\n\n
  • \uc801\uc808\ud55c \ucde8\uae09\uc73c\ub85c \uc6b0\uc218\ud55c \uc6a9\uc811\uc131<\/li>\n\n\n\n
  • \uc5b4\ub2d0\ub9c1 \ud6c4 \ud569\ub9ac\uc801\uc778 \ud615\uc0c1\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 \ubc0f \uc2a4\ud2b8\ub808\uc2a4 \ud574\uc18c\ub97c \uc704\ud55c \uc5b4\ub2d0\ub9c1<\/h3>\n\n\n\n

    4140 \uac15\uc758 \uc5b4\ub2d0\ub9c1\uc740 \ud2b9\uc815 \uc628\ub3c4\ub85c \uac00\uc5f4\ud55c \ub2e4\uc74c \ucc9c\ucc9c\ud788 \ub0c9\uac01\ud558\ub294 \uac83\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc740 \uae08\uc18d\uc744 \uc5f0\ud558\uac8c \ub9cc\ub4e4\uc5b4 \uac00\uacf5\uc744 \uc27d\uac8c \ud558\uace0 \uc774\uc804 \uc791\uc5c5\uc73c\ub85c \uc778\ud55c \ub0b4\ubd80 \uc751\ub825\uc744 \uc904\uc5ec \uc90d\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ubd80\ud488\uc744 \ub2e4\ub8e8\ub294 \uad6d\ub0b4\uc758 \uac00\uacf5\uc5c5\uccb4\uc5d0\uac8c \uc5b4\ub2d0\ub9c1\uc740 \ub354 \ub9e4\ub044\ub7ec\uc6b4 \uc808\ub2e8\uacfc \ub3c4\uad6c \uc218\uba85\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ud575\uc2ec\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uac15\ub3c4 \uade0\ud615\uc744 \uc704\ud55c \uae09\ub0c9 \ubc0f \ub2f4\uae08\uc9c8<\/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 \uae09\ub0c9\u2014\uace0\uc628\uc5d0\uc11c \ube60\ub974\uac8c \ub0c9\uac01\u2014\ud55c \ub2e4\uc74c \ub354 \ub0ae\uc740 \uc628\ub3c4\uc5d0\uc11c \ud15c\ud37c\ub9c1\ud569\ub2c8\ub2e4. \uc774 \uc870\ud569\uc740 \ub192\uc740 \ud56d\ubcf5 \uac15\ub3c4, \uac1c\uc120\ub41c \uacbd\ub3c4, \uadf8\ub9ac\uace0 \ub354 \ub098\uc740 \ud53c\ub85c \uc800\ud56d\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uac15\ucca0\uc744 \ucde8\uc131\uc73c\ub85c \ub9cc\ub4e4\uc9c0 \uc54a\uc73c\uba74\uc11c \uc790\ub3d9\ucc28 \ubc0f \uc911\uc7a5\ube44 \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uc6a9\uc811 \ubaa8\ubc94 \uc0ac\ub840 \ubc0f \uc77c\ubc18\uc801\uc778 \ud568\uc815<\/h3>\n\n\n\n

    \uc6a9\uc811 4140\uc740 \uc8fc\uc758\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc6a9\uc811 before\ud558\uba74 \uc7ac\ub8cc\ub97c \uc608\uc5f4\ud558\ub294 \uac83\uc774 \uade0\uc5f4 \ubc29\uc9c0\uc5d0 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4(\uc57d 300-400\u00b0F). \uc6a9\uc811 \ud6c4 \uc5f4\ucc98\ub9ac\ub294 \uac15\ub3c4\uc640 \uc778\uc131\uc744 \ud68c\ubcf5\ud558\ub294 \ub370 \uc790\uc8fc \ud544\uc694\ud569\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4 \uae09\ub0c9\uc744 \ud53c\ud574 \uc751\ub825 \ucd95\uc801 \ubc0f \ubcc0\ud615\uc744 \ucd5c\uc18c\ud654\ud558\uc2ed\uc2dc\uc624. 4140\uacfc \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \ube44\uad50\ud560 \ub54c 4140\uc758 \ub0ae\uc740 \ub0b4\uc2dd\uc131\uacfc \ub354 \ub192\uc740 \uae30\uacc4\uc801 \uac15\ub3c4\ub97c \uc5fc\ub450\uc5d0 \ub450\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

    \uac00\uacf5 \ud301 \ubc0f \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ub300\ube44 \ucde8\uae09<\/h3>\n\n\n\n

    4140\uc758 \uac00\uacf5\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ub300\ubd80\ubd84\uc758 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc808\ub2e8\ubcf4\ub2e4 \uc27d\uc2b5\ub2c8\ub2e4. \ud480\ub9bc \ud6c4 \ud45c\uc900 \uc808\uc0ad \uacf5\uad6c\uc640 \ub0c9\uac01\uc81c\ub85c \uac00\uacf5\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2f4\uae08\uc9c8 \ubc0f \uc2dc\ud6a8\ucc98\ub9ac \ud6c4\uc5d0\ub294 \ub354 \ub2e8\ub2e8\ud574\uc838 \ub3c4\uad6c \ub9c8\ubaa8\uac00 \ube68\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uc640 \ub2ec\ub9ac \uc0c1\ub2f9\ud55c \uc791\uc5c5 \uacbd\ud654\ub294 \uc77c\uc5b4\ub098\uc9c0 \uc54a\uc9c0\ub9cc \uc808\uc0ad\ub0a0\uc744 \uc790\uc8fc \uc5f0\ub9c8\ud558\ub294 \uac83\uc774 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uc5d0\uc11c 4140\uc73c\ub85c \uc804\ud658\ud558\ub294 \ubbf8\uad6d \uc81c\uc870\uc5c5\uccb4\uc758 \uacbd\uc6b0 \ub3c4\uad6c \uc218\uba85\uc774 \ud5a5\uc0c1\ub420 \uac83\uc73c\ub85c \uae30\ub300\ub418\uc9c0\ub9cc \uc808\ub2e8 \uc911 \uc5f4 \ucd95\uc801\uc5d0 \uc8fc\uc758\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

    \n\n\n\n

    \uc774 \uc5f4\ucc98\ub9ac \ubc0f \uac00\uacf5 \ud544\uc218 \uc694\uc18c\ub97c \uc774\ud574\ud558\uba74 \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c 4140 \uac15\uc758 \ucd5c\ub300\uce58\ub97c \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6a9\uc811\uc774\ub4e0 \uae30\uacc4\uac00\uacf5\uc774\ub4e0 \uc5f4\ucc98\ub9ac\ub4e0, \uc62c\ubc14\ub978 \uc811\uadfc \ubc29\uc2dd\uc740 \uac15\ub3c4, \ub0b4\uad6c\uc131, \uc0ac\uc6a9 \ud3b8\uc758\uc131\uc758 \uade0\ud615\uc744 \uc774\ub8f9\ub2c8\ub2e4.<\/p>\n\n\n\n

    4140 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc801\uc6a9 \ubd84\uc57c: \uc790\ub3d9\ucc28, \uc11d\uc720\u00b7\uac00\uc2a4, \ud56d\uacf5\uc6b0\uc8fc, \uc911\uc7a5\ube44<\/h2>\n\n\n\n

    4140 \uac15\uc740 \ub192\uc740 \uac15\ub3c4\uc640 \ud53c\ub85c \uc800\ud56d\ub825 \ub355\ubd84\uc5d0 \ub2e4\uc591\ud55c \uc0b0\uc5c5\uc5d0\uc11c \uc778\uae30 \uc788\ub294 \uc120\ud0dd\uc9c0\uc785\ub2c8\ub2e4. \uc790\ub3d9\ucc28 \ubd84\uc57c\uc5d0\uc11c\ub294 \ucd95, \ud06c\ub7ad\ud06c\uc0e4\ud504\ud2b8, \uae30\uc5b4 \ub4f1\uc5d0\uc11c \ub0b4\uad6c\uc131\uc774 \uc911\uc694\ud560 \ub54c \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc11d\uc720\u30fb\uac00\uc2a4 \ubd80\ubb38\uc740 \ub4dc\ub9b4 \uce7c\ub85c\ub9ac\uc640 \uae30\ud0c0 \ub2e4\uc6b4\ud640 \ub3c4\uad6c\uc5d0 4140\uc744 \uc2e0\ub8b0\ud558\uba70, \uac00\ud639\ud55c \ud658\uacbd\uacfc \ud070 \ub9c8\ubaa8\ub97c \uacac\ub525\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ud56d\uacf5\uc6b0\uc8fc\ub294 \ucc29\ub959\uc7a5\uce58 \ubd80\ud488\uacfc \uad6c\uc870 \ubd80\ud488\uc5d0 4140\uc744 \uc0ac\uc6a9\ud558\uba70 \uc774 \uac15\uc758 \uac15\uc778\ud568\uacfc \ud53c\ub85c \uc800\ud56d\ub825\uc758 \uc774\uc810\uc744 \uc5bb\uc2b5\ub2c8\ub2e4. \uc911\uc7a5\ube44\uc5d0\uc11c\ub294 \uc0e4\ud504\ud2b8, \ubcfc\ud2b8, \ud540 \ub4f1 \ubb34\uac70\uc6b4 \ud558\uc911\uc744 \uacac\ub514\ub294 \ubd80\ud488\uc5d0 \ud754\ud788 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ud53c\ub85c \uc800\ud56d\ub825\uc740 \ub610\ud55c 4140\uc774 \ubc29\uc704\uc0b0\uc5c5 \ubc0f \ubaa8\ud130\uc2a4\ud3ec\uce20 \ubd84\uc57c\uc5d0\uc11c\ub3c4 \uc0c1\uc704 \uc120\ud0dd\uc774 \ub418\uac8c \ub9cc\ub4ed\ub2c8\ub2e4. \uc11c\uc2a4\ud39c\uc158 \ubd80\ud488 \ubc0f \ub4dc\ub77c\uc774\ube0c \uc0e4\ud504\ud2b8\uc640 \uac19\uc740 \ubd80\ud488\uc740 \ubc18\ubcf5 \ud558\uc911\uc5d0\uc11c \uc131\ub2a5\uc774 \uc88b\uc544 \uc11c\ube44\uc2a4 \uc218\uba85\uc744 \uc5f0\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ub2e4\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. \ub192\uc740 \uc2b5\uae30\ub098 \ud654\ud559 \ubb3c\uc9c8\uc774 \uc788\ub294 \ud658\uacbd\uc5d0\uc11c\ub294 304\ub098 416\uacfc \uac19\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ub300\uccb4\uc7ac\uac00 \ub179\uacfc \ud540\uc744 \ubc29\uc9c0\ud558\ub294 \ub370 \ub354 \ub098\uc740 \uc120\ud0dd\uc774 \ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c 4140\uc740 \uac15\ub3c4\uc640 \ub9c8\ubaa8 \uc800\ud56d\uc131\uc774 \ub6f0\uc5b4\ub098\uc9c0\ub9cc, \ubd80\uc2dd\uc774 \uc8fc\ub41c \ubb38\uc81c\uc778 \uacbd\uc6b0\uc5d0\ub294 \ucd5c\uc801\uc758 \uc120\ud0dd\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n\n\n\n

    4140 \ub300\uc548: \ube44\uad50\uc640 \ube44\uc6a9 \uc774\uc810<\/h2>\n\n\n\n

    4140 \uac15\ucca0\uc744 4130, 4340 \uac19\uc740 \ub2e4\ub978 \ud569\uae08 \ubc0f 304 \ub610\ub294 416\uacfc \uac19\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uacc4\uc5f4\uacfc \ube44\uad50\ud560 \ub54c, \ud504\ub85c\uc81d\ud2b8\uc758 \ube44\uc6a9, \uac15\ub3c4, \ubd80\uc2dd \uc694\uad6c \uc0ac\ud56d\uc758 \uade0\ud615\uc744 \ub9de\ucd94\ub294 \uac83\uc774 \ud575\uc2ec\uc785\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>\uac00\uc7a5 \uc801\ud569\ud55c \uc6a9\ub3c4<\/th><\/tr><\/thead>
    4140<\/strong><\/td>\ub192\uc740 \uac15\ub3c4, \uc6b0\uc218\ud55c \uc778\uc131<\/td>\uc911\uac04 \uc218\uc900(\ube44\uc2a4\ud14c\uc778\ub9ac\uc2a4)<\/td>\ubcf4\ud1b5<\/td>\uc790\ub3d9\ucc28 \ubd80\ud488, \uae30\uacc4\ub958<\/td><\/tr>
    4130<\/strong><\/td>\uc57d\uac04 \ub0ae\uc740 \uac15\ub3c4<\/td>\ubcf4\ud1b5<\/td>\ub300\uccb4\ub85c \ub354 \uc800\ub834<\/td>\ub808\uc774\uc2f1 \ud504\ub808\uc784, \uacbd\ub7c9 \uad6c\uc870<\/td><\/tr>
    4340<\/strong><\/td>\ub354\uc6b1 \ub192\uc740 \uac15\ub3c4<\/td>\ubcf4\ud1b5<\/td>\ub192\uc740<\/td>\ud56d\uacf5\uc6b0\uc8fc \ubd80\ud488, \uc911\ub300\ud615 \uae30\uacc4<\/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, \uc2e4\uc678\uc6a9 \uae30\uc5b4<\/td><\/tr>
    416 \uc2a4\ud14c\uc778\ub9ac\uc2a4<\/strong><\/td>\uc6b0\uc218\ud55c \uac00\uacf5\uc131, \ub2e4\uc18c\uc758 \uac15\ub3c4<\/td>4140\ubcf4\ub2e4 \uc6b0\uc218<\/td>\ub192\uc740<\/td>\ubc38\ube0c \ubd80\ud488, \uccb4\uacb0\ubd80<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    \ube44\uc6a9 \ub300 \uc131\ub2a5 \ud2b8\ub808\uc774\ub4dc\uc624\ud504<\/h3>\n\n\n\n
      \n
    • 4140<\/strong>\u00a0\ud569\ub9ac\uc801\uc778 \uac00\uaca9\uc5d0 \ub6f0\uc5b4\ub09c \uc778\uc131 \ubc0f \ub9c8\ubaa8 \uc800\ud56d\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
    • \ubd80\uc2dd \uc800\ud56d\uc774 \uc911\uc694\ud558\ub2e4\uba74 304\ub098 416 \uac19\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc635\uc158\uc774 4140\ubcf4\ub2e4 \ub354 \ub0ab\ub2e4(\ube44\uc6a9\uc740 \ub354 \ub192\uc74c).<\/li>\n\n\n\n
    • \ucd08\uace0\uac15\ub3c4 \ud544\uc694 \uc2dc 4340\uc774 \ub354 \ub098\uc740 \uc120\ud0dd\uc77c \uc218 \uc788\uc9c0\ub9cc \uac00\uaca9 \uc0c1\uc2b9\uc774 \ub530\ub978\ub2e4.<\/li>\n\n\n\n
    • 4130<\/strong>\u00a0\uc608\uc0b0 \uce5c\ud654\uc801\uc778 \ub300\uc548\uc774\uc9c0\ub9cc \uac15\ub3c4\uc640 \ub9c8\ubaa8 \uc800\ud56d\uc740 \uc57d\uac04 \ub0ae\ub2e4.<\/li>\n<\/ul>\n\n\n\n

      \uc801\ud569\ud55c \ud569\uae08 \uc120\ud0dd<\/h3>\n\n\n\n
        \n
      • \uc120\ud0dd\u00a04140<\/strong>\u00a0\ub9c8\ubaa8\uc5d0 \ub178\ucd9c\ub418\uc9c0\ub9cc \ubd80\uc2dd\uc740 \ucd5c\uc18c\ud654\ub418\ub294 \ubd80\ud488\uc5d0 \ub300\ud55c \uacac\uace0\ud558\uace0 \ube44\uc6a9 \ud6a8\uc728\uc801\uc778 \ud569\uae08\uc744 \uc6d0\ud558\uba74.<\/li>\n\n\n\n
      • \uc120\ud0dd\u00a0\uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8<\/strong>\u00a0\uc6d0\uc2dc \uac15\ub3c4\ubcf4\ub2e4 \ubd80\uc2dd \ubc0f \uc678\uad00\uc774 \ub354 \uc911\uc694\ud55c \uacbd\uc6b0.<\/li>\n\n\n\n
      • \uc120\ud0dd\u00a04340<\/strong>\u00a0\ucd5c\ub300 \uac15\ub3c4\uc640 \ud53c\ub85c \uc800\ud56d\uc774 \ucd94\uac00 \ube44\uc6a9\uc744 \uc815\ub2f9\ud654\ud560 \ub54c.<\/li>\n\n\n\n
      • \uace0\ub824\ud558\ub2e4\u00a04130<\/strong>\u00a0\uac00\ubcbc\uc6b4 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud558\uace0 \ube44\uc6a9 \uc808\uac10\uc774 \uac00\ub2a5\ud55c \ube4c\ub4dc\ub85c\uc11c \uc591\ud0c4\ub825\uc801 \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \ubcf4\uc720\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n

        \uadc0\ud558\uc758 \uc801\uc6a9 \ubd84\uc57c\uc640 \uc608\uc0b0\uc744 \uc544\ub294 \uac83\uc774 \uacfc\uc18c\ube44\ub098 \uc131\ub2a5 \uc800\ud558 \uc5c6\uc774 \uc774 \ud569\uae08\ub4e4 \uc0ac\uc774\ub97c \ube60\ub974\uac8c \uacb0\uc815\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

        4140 \uac15\uc7ac\uc758 \uc18c\uc2f1 \ubc0f \ubaa8\ubc94 \uc0ac\ub840<\/h2>\n\n\n\n

        4140 \uac15\uc7ac\ub97c \ucc3e\uc744 \ub54c\ub294 \uc774\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 \ubc14, \ub85c\uc6b4, \uc2dc\ud2b8 \ubc0f \ub2e8\uc870\ub85c \uc81c\uacf5\ub429\ub2c8\ub2e4. \uacf5\uae09\uc5c5\uccb4\uac00 ASTM \ub610\ub294 AMS\uc640 \uac19\uc740 \uc801\uc808\ud55c \uc778\uc99d\uc744 \uc81c\uacf5\ud558\uc5ec \uac15\uc7ac\uac00 \uc0b0\uc5c5 \ud45c\uc900\uc744 \ucda9\uc871\ud558\ub294\uc9c0 \ubcf4\uc7a5\ud558\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

        \ubbf8\uad6d \ub0b4\uc5d0\uc11c \ub85c\uceec\ub85c 4140\uc744 \uc18c\uc2f1\ud558\ub294 \uacbd\uc6b0, VastMaterial\uacfc \uac19\uc740 \ud68c\uc0ac\ub4e4\uc740 \ud488\uc9c8 \ubcf4\uc99d\uacfc \uc9c0\uc18d \uac00\ub2a5\ud55c \uad00\ud589\uc5d0 \uc9d1\uc911\ud569\ub2c8\ub2e4. \uadf8\ub4e4\uc740 \uac01 \ubc30\uce58\ub97c \uae30\uacc4\uc801 \uc131\uc9c8, \ud654\ud559 \uc870\uc131 \ubc0f \ucd94\uc801 \uac00\ub2a5\uc131\uc5d0 \ub300\ud574 \ud14c\uc2a4\ud2b8\ud558\ubbc0\ub85c \uc911\uc694\ud55c \uc6a9\ub3c4\uc5d0 \ub300\ud55c \uc7ac\ub8cc\ub97c \uc2e0\ub8b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

        \uc7ac\uace0 \ubc0f \ub9ac\ub4dc \ud0c0\uc784\uc740 \ud2b9\ud788 \ud2b9\uc815 \ud06c\uae30\ub098 \ub9de\ucda4\uac00\uacf5\uc774 \ud544\uc694\ud55c \uacbd\uc6b0 \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc808\ub2e8, \uc5f4\ucc98\ub9ac \ub610\ub294 \uae30\uacc4\uac00\uacf5 \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud558\ub294 \uc720\uc5f0\ud55c \uc635\uc158\uc744 \uac00\uc9c4 \uacf5\uae09\uc5c5\uccb4\uc640 \ud611\ub825\ud558\ub294 \uac83\uc774 \uc2dc\uac04 \uc808\uc57d\uacfc \ud504\ub85c\uc81d\ud2b8\uc758 \uc6d0\ud65c\ud55c \uc9c4\ud589\uc5d0 \ud604\uba85\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

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

          \n
        • \ud56d\uc0c1 \uc81c\uc870 \uc2dc\ud5d8 \uc131\uc801\uc11c\ub098 \uc7ac\ub8cc \uc778\uc99d\uc11c\ub97c \uc694\uccad\ud558\uc2ed\uc2dc\uc624.<\/li>\n\n\n\n
        • \ud569\uae08\uac15\uc5d0 \uacbd\ud5d8\uc774 \uc788\ub294 \uacf5\uae09\uc5c5\uccb4\ub97c \uc120\ud0dd\ud558\uc5ec \ud488\uc9c8 \uc774\uc288\ub97c \ud53c\ud558\uc2ed\uc2dc\uc624.<\/li>\n\n\n\n
        • \ud504\ub85c\uc81d\ud2b8 \uacc4\ud68d\uc5d0\uc11c \uc7ac\uace0 \uac00\uc6a9\uc131\uacfc \ub9ac\ub4dc \ud0c0\uc784\uc744 \uace0\ub824\ud558\uc2ed\uc2dc\uc624.<\/li>\n\n\n\n
        • \uc815\ud655\ud55c \ud544\uc694\uc5d0 \ub9de\ucd94\uae30 \uc704\ud574 \ub9de\ucda4 \uc0ac\uc774\uc988\uc640 \ub9c8\uac10\uc744 \uc9c0\uc6d0\ud558\ub294 \uacf5\uae09\uc5c5\uccb4\ub97c \ucc3e\uc73c\uc2ed\uc2dc\uc624.<\/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}]}}