{"id":3935,"date":"2024-06-27T13:37:40","date_gmt":"2024-06-27T13:37:40","guid":{"rendered":"https:\/\/machining-quote.com\/?p=3935"},"modified":"2024-07-01T01:11:32","modified_gmt":"2024-07-01T01:11:32","slug":"ss303-and-ss420","status":"publish","type":"post","link":"https:\/\/machining-quote.com\/ko\/bolg\/ss303-and-ss420\/","title":{"rendered":"SS303\uacfc SS420\uc758 \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?"},"content":{"rendered":"<h4>\ubaa9\ucc28<\/h4>\n<ul>\n<li><a href=\"#overview-of-ss303-and-ss420-stainless-steel-grades\">SS303 \ubc0f SS420 \uc2a4\ud14c\uc778\ub808\uc2a4 \uc2a4\ud2f8 \ub4f1\uae09 \uac1c\uc694<\/a><\/li>\n<li><a href=\"#ss303-and-ss420-equivalent-material\">SS303 \ubc0f SS420 \ub4f1\uac00\ubb3c<\/a><\/li>\n<li><a href=\"#pros-and-cons-303-vs-420-stainless-steel\">\uc7a5\uc810\uacfc \ub2e8\uc810: 303 VS 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/a><\/li>\n<li><a href=\"#chemical-composition-differences-between-ss303-and-ss420\">SS303\uacfc SS420\uc758 \ud654\ud559 \uc131\ubd84 \ucc28\uc774<\/a><\/li>\n<li><a href=\"#corrosion-resistance-of-aisi-303-vs-aisi-420\">AISI 303 \ub300 \ub0b4\uc2dd\uc131. AISI 420<\/a><\/li>\n<li><a href=\"#mechanical-properties-comparing-ss303-and-ss420\">\uae30\uacc4\uc801 \uc131\uc9c8: SS303\uacfc SS420 \ube44\uad50<\/a><\/li>\n<li><a href=\"#heat-treatment-processes-for-en-1-4303-and-en-1-4028\">EN 1.4303 \ubc0f EN 1.4028\uc758 \uc5f4\ucc98\ub9ac \uacf5\uc815<\/a><\/li>\n<li><a href=\"#machinability-of-ss303-and-ss420\">SS303 \ubc0f SS420\uc758 \uac00\uacf5\uc131<\/a><\/li>\n<li><a href=\"#applications-where-to-use-ss303-and-ss420\">\uc751\uc6a9 \ubd84\uc57c: SS303 \ubc0f SS420\uc744 \uc0ac\uc6a9\ud558\ub294 \uacf3<\/a><\/li>\n<li><a href=\"#conclusion\">\uacb0\ub860<\/a><\/li>\n<\/ul>\n<h2 id=\"overview-of-ss303-and-ss420-stainless-steel-grades\">SS303 \ubc0f SS420 \uc2a4\ud14c\uc778\ub808\uc2a4 \uc2a4\ud2f8 \ub4f1\uae09 \uac1c\uc694<\/h2>\n<p>\uc8fc\ub85c \ucca0, \ud06c\ub86c, \ud0c4\uc18c\ub85c \uad6c\uc131\ub41c \ud569\uae08\uc778 \uc2a4\ud14c\uc778\ub808\uc2a4\uac15\uc740 \ub0b4\uc2dd\uc131\uacfc \uac15\ub3c4\ub85c \uc720\uba85\ud569\ub2c8\ub2e4. \ub2e4\uc591\ud55c \ub4f1\uae09\uc758 \uc2a4\ud14c\uc778\ub808\uc2a4\uac15 \uc911\uc5d0\uc11c SS303\uacfc SS420\uc740 \uc8fc\ub85c \ud654\ud559\uc801 \uc870\uc131\uacfc \uae30\uacc4\uc801 \ud2b9\uc131\uc774 \ub2e4\ub974\uae30 \ub54c\ubb38\uc5d0 \ub69c\ub837\ud55c \ud2b9\uc131\uacfc \uc6a9\ub3c4\uac00 \ub450\ub4dc\ub7ec\uc9d1\ub2c8\ub2e4. \ud2b9\uc815 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\ub294 \uc5d4\uc9c0\ub2c8\uc5b4\uc640 \uc124\uacc4\uc790\uc5d0\uac8c\ub294 \uc774 \ub450 \ub4f1\uae09\uc758 \ucc28\uc774\uc810\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h3>SS303 \uc2a4\ud14c\uc778\ub808\uc2a4 \uc2a4\ud2f8<\/h3>\n<ul>\n<li>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4<\/li>\n<li>\uc6b0\uc218\ud55c \uac00\uacf5\uc131<\/li>\n<li>\ube44\uc790\uc131<\/li>\n<li>\ud669 \ud568\uc720(0.15%~0.35%)<\/li>\n<li>\ub2e4\ub978 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \ub4f1\uae09\ubcf4\ub2e4 \ub0b4\uc2dd\uc131\uc774 \ub0ae\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>SS420 \uc2a4\ud14c\uc778\ub808\uc2a4 \uc2a4\ud2f8<\/h3>\n<ul>\n<li>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uc720\ud615<\/li>\n<li>\ub354 \ub192\uc740 \ud0c4\uc18c \ud568\ub7c9(0.15% ~ 0.40%)<\/li>\n<li>\uc5f4\ucc98\ub9ac\ub97c \ud1b5\ud574 \uacbd\ud654\ub420 \uc218 \uc788\uc74c<\/li>\n<li>\ub354 \ub192\uc740 \uac15\ub3c4\uc640 \uacbd\ub3c4<\/li>\n<li>\ub0b4\uc2dd\uc131\uc740 \uc6b0\uc218\ud558\uc9c0\ub9cc \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \ub4f1\uae09\ubcf4\ub2e4 \ub0ae\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uc790\uae30<\/li>\n<\/ul>\n<h2 id=\"ss303-and-ss420-equivalent-material\">SS303 \ubc0f SS420 \ub4f1\uac00\ubb3c<\/h2>\n<p>SS303 \ubc0f SS420\uc5d0 \ud574\ub2f9\ud558\ub294 \uc7ac\ub8cc\ub97c \uc774\ud574\ud558\uba74 \ud544\uc694\ud560 \ub54c \ub300\uc548\uc744 \uc120\ud0dd\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n<h3>SS303 \ub4f1\uac00\uc7ac\ub8cc<\/h3>\n<ul>\n<li>\uc544\uc774\uc2dc 303<\/li>\n<li>EN 1.4305<\/li>\n<\/ul>\n<h3>SS420 \ub4f1\uac00\uc7ac\ub8cc<\/h3>\n<ul>\n<li>AISI 420<\/li>\n<li>EN 1.4021<\/li>\n<\/ul>\n<h2 id=\"pros-and-cons-303-vs-420-stainless-steel\">\uc7a5\uc810\uacfc \ub2e8\uc810: 303 VS 420 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/h2>\n<p>SS303\uacfc SS420 \uc911\uc5d0\uc11c \uc120\ud0dd\ud558\ub294 \uac83\uc740 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \ud2b9\uc815 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n<h3>SS303<\/h3>\n<h4>\uc7a5\uc810<\/h4>\n<ul>\n<li>\uc6b0\uc218\ud55c \uac00\uacf5\uc131<\/li>\n<li>\ube44\uc790\uc131<\/li>\n<li>\uc77c\ubc18 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \ub0b4\uc2dd\uc131 \uc6b0\uc218<\/li>\n<\/ul>\n<h4>\ub2e8\uc810<\/h4>\n<ul>\n<li>\uc5fc\ud654\ubb3c \ud658\uacbd\uc5d0\uc11c \ub0ae\uc740 \ub0b4\uc2dd\uc131<\/li>\n<li>SS420\ub9cc\ud07c \uac15\ud558\uc9c0\ub3c4, \ub2e8\ub2e8\ud558\uc9c0\ub3c4 \uc54a\uc74c<\/li>\n<\/ul>\n<h3>SS420<\/h3>\n<h4>\uc7a5\uc810<\/h4>\n<ul>\n<li>\uace0\uac15\ub3c4 \ubc0f \uacbd\ub3c4<\/li>\n<li>\uc5f4\ucc98\ub9ac\ub97c \ud1b5\ud574 \uacbd\ud654\ub420 \uc218 \uc788\uc74c<\/li>\n<li>\uc88b\uc740 \ub0b4\ub9c8\ubaa8\uc131<\/li>\n<\/ul>\n<h4>\ub2e8\uc810<\/h4>\n<ul>\n<li>\ub0ae\uc740 \uac00\uacf5\uc131<\/li>\n<li>\ubd80\uc2dd\uc131 \ud658\uacbd\uc5d0\uc11c\ub294 \ub354 \ub9ce\uc740 \uc720\uc9c0 \uad00\ub9ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2 id=\"chemical-composition-differences-between-ss303-and-ss420\">SS303\uacfc SS420\uc758 \ud654\ud559 \uc131\ubd84 \ucc28\uc774<\/h2>\n<p>SS303 \ubc0f SS420\uc758 \ud654\ud559\uc801 \uc870\uc131\uc740 \uace0\uc720\ud55c \ud2b9\uc131\uacfc \uc801\ud569\ud55c \uc6a9\ub3c4\ub97c \uc815\uc758\ud569\ub2c8\ub2e4.<\/p>\n<h3>SS303 \ud654\ud559 \uc131\ubd84<\/h3>\n<table border=\"1\">\n<tbody>\n<tr>\n<th>\uc694\uc18c<\/th>\n<th>\ubc31\ubd84\uc728<\/th>\n<\/tr>\n<tr>\n<td>\ud06c\ub86c<\/td>\n<td>17-19%<\/td>\n<\/tr>\n<tr>\n<td>\ub2c8\ucf08<\/td>\n<td>8-10%<\/td>\n<\/tr>\n<tr>\n<td>\ud669<\/td>\n<td>0.15-0.35%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>SS420 \ud654\ud559 \uc131\ubd84<\/h3>\n<table border=\"1\">\n<tbody>\n<tr>\n<th>\uc694\uc18c<\/th>\n<th>\ubc31\ubd84\uc728<\/th>\n<\/tr>\n<tr>\n<td>\ud06c\ub86c<\/td>\n<td>12-14%<\/td>\n<\/tr>\n<tr>\n<td>\ud0c4\uc18c<\/td>\n<td>0.15-0.40%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"corrosion-resistance-of-aisi-303-vs-aisi-420\">AISI 303 \ub300 \ub0b4\uc2dd\uc131. AISI 420<\/h2>\n<p>\ub0b4\uc2dd\uc131\uc740 \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c AISI 303\uacfc AISI 420 \uc911\uc5d0\uc11c \uc120\ud0dd\ud560 \ub54c \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4.<\/p>\n<h3>AISI 303 \ub0b4\uc2dd\uc131<\/h3>\n<ul>\n<li>\ub35c \uacf5\uaca9\uc801\uc778 \ud658\uacbd\uc5d0 \uc801\ud569<\/li>\n<li>\uc5fc\ud654\ubb3c \ud658\uacbd\uc5d0\uc11c \uacf5\uc2dd \ubc0f \ud2c8\uc0c8 \ubd80\uc2dd\uc5d0 \ucde8\uc57d\ud568<\/li>\n<\/ul>\n<h3>AISI 420 \ub0b4\uc2dd\uc131<\/h3>\n<ul>\n<li>\ub300\uae30 \uc870\uac74, \ubb3c, \uc57d\uc0b0\uc5d0 \uc88b\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uc5fc\ud654\ubb3c \ubc0f \uacf5\uaca9\uc801\uc778 \ud658\uacbd \uc870\uac74\uc5d0 \ucde8\uc57d\ud568<\/li>\n<\/ul>\n<h2 id=\"mechanical-properties-comparing-ss303-and-ss420\">\uae30\uacc4\uc801 \uc131\uc9c8: SS303\uacfc SS420 \ube44\uad50<\/h2>\n<p>\ud2b9\uc815 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc7ac\ub8cc\ub97c \uc120\ud0dd\ud558\ub824\uba74 SS303 \ubc0f SS420\uc758 \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n<h3>SS303 \uae30\uacc4\uc801 \uc131\uc9c8<\/h3>\n<ul>\n<li>\uc778\uc7a5 \uac15\ub3c4: 620-850 MPa<\/li>\n<li>\ud56d\ubcf5 \uac15\ub3c4: 240-450MPa<\/li>\n<li>\ud30c\ub2e8 \uc2e0\uc728: ~50%<\/li>\n<\/ul>\n<h3>SS420 \uae30\uacc4\uc801 \uc131\uc9c8<\/h3>\n<ul>\n<li>\uc778\uc7a5 \uac15\ub3c4: 700-1500MPa<\/li>\n<li>\ud56d\ubcf5 \uac15\ub3c4: 500-1000 MPa<\/li>\n<li>\ud30c\ub2e8 \uc2e0\uc728: 10-25%<\/li>\n<\/ul>\n<h2 id=\"heat-treatment-processes-for-en-1-4303-and-en-1-4028\">EN 1.4303 \ubc0f EN 1.4028\uc758 \uc5f4\ucc98\ub9ac \uacf5\uc815<\/h2>\n<p>\uc5f4\ucc98\ub9ac \uacf5\uc815\uc740 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 EN 1.4303(SS303) \ubc0f EN 1.4028(SS420)\uc5d0\uc11c \uc6d0\ud558\ub294 \ud2b9\uc131\uc744 \ub2ec\uc131\ud558\ub294 \ub370 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n<h3>EN 1.4303(SS303) \uc5f4\ucc98\ub9ac<\/h3>\n<ul>\n<li>\uc5b4\ub2d0\ub9c1: 1010-1120\u00b0C, \uadf8 \ud6c4 \uae09\uc18d \ub0c9\uac01<\/li>\n<li>\uc751\ub825 \uc644\ud654, \uc131\ud615\uc131, \uc6a9\uc811\uc131 \ud5a5\uc0c1<\/li>\n<\/ul>\n<h3>EN 1.4028(SS420) \uc5f4\ucc98\ub9ac<\/h3>\n<ul>\n<li>\uacbd\ud654: 950-1050\u00b0C, \uc624\uc77c \ub610\ub294 \uacf5\uae30 \uc911\uc5d0\uc11c \ub2f4\uae08\uc9c8<\/li>\n<li>\ud15c\ud37c\ub9c1: \uacbd\ub3c4\uc640 \uc778\uc131\uc744 \uc870\uc815\ud558\uae30 \uc704\ud55c 100-400\u00b0C<\/li>\n<\/ul>\n<h2 id=\"machinability-of-ss303-and-ss420\">SS303 \ubc0f SS420\uc758 \uac00\uacf5\uc131<\/h2>\n<p>\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 SS303 \ubc0f SS420\uc758 \uac00\uacf5\uc131\uc740 \uc0c1\ub2f9\ud788 \ub2e4\uc591\ud558\uc5ec \ub2e4\uc591\ud55c \uc81c\uc870 \uacf5\uc815\uc5d0 \ub300\ud55c \uc801\ud569\uc131\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/p>\n<h3>SS303 \uac00\uacf5\uc131<\/h3>\n<ul>\n<li>\ud669 \ucca8\uac00\ub85c \uac15\ud654<\/li>\n<li>\uacf5\uad6c \ub9c8\ubaa8 \uac10\uc18c \ubc0f \uac00\uacf5 \uc18d\ub3c4 \uc99d\uac00<\/li>\n<li>\uad11\ubc94\uc704\ud55c \uac00\uacf5\uc774 \ud544\uc694\ud55c \ubd80\ud488\uc5d0 \uc774\uc0c1\uc801<\/li>\n<\/ul>\n<h3>SS420 \uac00\uacf5\uc131<\/h3>\n<ul>\n<li>\ud0c4\uc18c \ud568\ub7c9\uc774 \ub192\uae30 \ub54c\ubb38\uc5d0 \uae30\uacc4 \uac00\uacf5\uc774 \ub354 \uc5b4\ub835\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uacac\uace0\ud558\uace0 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc788\ub294 \ub3c4\uad6c\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li>\n<li>\uac00\uacf5 \uc804 \uc5b4\ub2d0\ub9c1\uc73c\ub85c \uc791\uc5c5\uc131 \ud5a5\uc0c1 \uac00\ub2a5<\/li>\n<\/ul>\n<h2 id=\"applications-where-to-use-ss303-and-ss420\">\uc751\uc6a9 \ubd84\uc57c: SS303 \ubc0f SS420\uc744 \uc0ac\uc6a9\ud558\ub294 \uacf3<\/h2>\n<p>\ud2b9\uc815 \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud55c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \uc120\ud0dd\ud558\uba74 \ucd5c\uc801\uc758 \uc131\ub2a5\uacfc \uc218\uba85\uc774 \ubcf4\uc7a5\ub429\ub2c8\ub2e4.<\/p>\n<h3>SS303 \uc751\uc6a9<\/h3>\n<ul>\n<li>\ud53c\ud305<\/li>\n<li>\ub098\uc0ac<\/li>\n<li>\uae30\uacc4\ubd80\ud488<\/li>\n<li>\ud639\ub3c5\ud55c \ubd80\uc2dd \ud658\uacbd\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc74c<\/li>\n<\/ul>\n<h3>SS420 \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/h3>\n<ul>\n<li>\ucee4\ud2b8\ub7ec\ub9ac<\/li>\n<li>\uc218\uc220 \ub3c4\uad6c<\/li>\n<li>\ube14\ub808\uc774\ub4dc<\/li>\n<li>\ub192\uc740 \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc694\uad6c\ud558\ub294 \uc6a9\ub3c4<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\uacb0\ub860<\/h2>\n<p>SS303\uacfc SS420 \uc2a4\ud14c\uc778\ub808\uc2a4 \uac15\uc758 \uc8fc\uc694 \ucc28\uc774\uc810\uc740 \uad6c\uc131\uacfc \uae30\uacc4\uc801 \ud2b9\uc131\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. SS303\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c \uac00\uacf5\uc131\uc774 \uc88b\uc740 \uac83\uc73c\ub85c \uc54c\ub824\uc838 \uc788\uc73c\uba70, \uac00\uacf5\uc758 \uc6a9\uc774\uc131\uc774 \uc694\uad6c\ub418\ub294 \uacf3\uc5d0 \uc8fc\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uac00\uacf5\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \ud669\uc744 \ud568\uc720\ud558\uace0 \uc788\uc9c0\ub9cc \ub2e4\ub978 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \ub4f1\uae09\uc5d0 \ube44\ud574 \ub0b4\uc2dd\uc131\uc774 \ub0ae\uc2b5\ub2c8\ub2e4. \ubc18\uba74 SS420\uc740 \ud0c4\uc18c \ud568\ub7c9\uc774 \ub192\uc740 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc73c\ub85c SS303\uc5d0 \ube44\ud574 \uac15\ub3c4\uc640 \uacbd\ub3c4\ub294 \uc6b0\uc218\ud558\uc9c0\ub9cc \ub0b4\uc2dd\uc131\uc740 \ub5a8\uc5b4\uc9c4\ub2e4. SS420\uc740 \uc218\uc800\ub958 \ubc0f \uc218\uc220 \ub3c4\uad6c\uc640 \uac19\uc774 \ub192\uc740 \uac15\ub3c4\uc640 \uc801\ub2f9\ud55c \ub0b4\uc2dd\uc131\uc744 \uc694\uad6c\ud558\ub294 \uc751\uc6a9 \ubd84\uc57c\uc5d0 \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>\ubaa9\ucc28 SS303 \ubc0f SS420 \uc2a4\ud14c\uc778\ub808\uc2a4 \uac15 \ub4f1\uae09\uc758 \uac1c\uc694 SS303 \ubc0f SS420 \ub4f1\uac00 \uc7ac\ub8cc \ucc2c\ubc18 \uc591\ub860: 303 VS 420 \uc2a4\ud14c\uc778\ub808\uc2a4 \uac15 \ud654\ud559 \uc870\uc131 SS303\uacfc SS420 \uc0ac\uc774\uc758 \ucc28\uc774 AISI 303 \ub300 AISI 303\uc758 \ub0b4\uc2dd\uc131. 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