{"id":14770,"date":"2026-04-22T10:10:05","date_gmt":"2026-04-22T02:10:05","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=14770"},"modified":"2026-10-16T10:19:55","modified_gmt":"2026-10-16T02:19:55","slug":"440c-stainless-steel-properties","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/ko\/440c-stainless-steel-properties\/","title":{"rendered":"440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud2b9\uc131, \uad6c\uc131, \uacbd\ub3c4, \uae30\uacc4\uc801 \ud2b9\uc131 \ubc0f \uc6a9\ub3c4"},"content":{"rendered":"

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud2b9\uc131<\/h1>\n\n\n\n

440C\ub294 \ub0b4\uc2dd\uc131 \uac15\uc885 \uc911 \ucd5c\ub300 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc704\ud574 \uc124\uacc4\ub41c \uace0\ud0c4\uc18c\u00b7\uace0\ud06c\ub86c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc785\ub2c8\ub2e4. \uc801\uc808\ud55c \uc5f4\ucc98\ub9ac \ud6c4 \ucd5c\ub300 60 HRC\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc73c\uba70, \uc77c\ubc18\uc801\uc73c\ub85c 57~60 HRC\uc5d0\uc11c \uc0ac\uc6a9\ub418\uc5b4 \uc811\ucd09 \ud558\uc911 \ud558\uc5d0\uc11c\uc758 \ub9c8\ubaa8, \ub0a0\ubd80 \ub9c8\ubaa8 \ubc0f \ud45c\uba74 \ubcc0\ud615\uc5d0 \ub300\ud55c \uac15\ud55c \uc800\ud56d\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud0c4\uc18c \ud568\ub7c9\uc774 \ub192\ub2e4\ub294 \uac83\uc740 \uc5f0\uc131\uc774 \ub0ae\uace0 \ucda9\uaca9 \uc778\uc131\uc774 \uc81c\ud55c\uc801\uc774\ub77c\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c 440C\ub294 \uc548\uc815\uc801\uc778 \ud558\uc911\uc744 \ubc1b\ub294 \ub9c8\ubaa8\uac00 \uc2ec\ud55c \ubd80\ud488\uc5d0 \uc801\ud569\ud55c \uc18c\uc7ac\uc774\uba70, \ucda9\uaca9 \ud558\uc911\uc744 \ubc1b\uac70\ub098 \uad6c\uc870\uc6a9\uc73c\ub85c\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \ud398\uc774\uc9c0\uc758 \ubaa8\ub4e0 \ub0b4\uc6a9\uc740 \uc774\ub7ec\ud55c \uc0c1\ucda9 \uad00\uacc4\uc5d0\uc11c \ube44\ub86f\ub418\ubbc0\ub85c, \uac01 \ud2b9\uc131\uc744 \uc7a5\uc810\uc758 \ubaa9\ub85d\uc73c\ub85c \ubcf4\uae30\ubcf4\ub2e4\ub294 \uade0\ud615\uc810\uc73c\ub85c \uc774\ud574\ud558\ub294 \uac83\uc774 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud654\ud559\uc801 \uc870\uc131<\/h2>\n\n\n\n

440C(UNS S44004)\uc758 \uc870\uc131\uc740 \uacbd\ud654\ub2a5, \ud0c4\ud654\ubb3c \ud615\uc131 \ubc0f \uc2e4\uc6a9\uc801\uc778 \ub0b4\uc2dd\uc131\uc758 \uade0\ud615\uc744 \uc774\ub8f9\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uc870\uc131(wt%):<\/p>\n\n\n\n

\uc694\uc18c<\/th>\ucf58\ud150\uce20(%)<\/th><\/tr><\/thead>
Carbon (C)<\/td>0.95\uc5d0\uc11c 1.20\uae4c\uc9c0<\/td><\/tr>
\ud06c\ub86c (Cr)<\/td>16.00 ~ 18.00<\/td><\/tr>
\ubab0\ub9ac\ube0c\ub374 (Mo)<\/td>\ucd5c\ub300 0.75<\/td><\/tr>
\ub9dd\uac04 (Mn)<\/td>\ucd5c\ub300 1.00<\/td><\/tr>
\uaddc\uc18c (Si)<\/td>\ucd5c\ub300 1.00<\/td><\/tr>
\uc778(P)<\/td>\ucd5c\ub300 0.040<\/td><\/tr>
\ud669(S)<\/td>\ucd5c\ub300 0.030<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ub192\uc740 \ud0c4\uc18c \ubc0f \ud06c\ub86c \ud568\ub7c9\uc740 \ub2e4\ub7c9\uc758 \ud06c\ub86c-rich \ud0c4\ud654\ubb3c\uc744 \ud3ec\ud568\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uae30\uc9c0\ub97c \ud615\uc131\ud569\ub2c8\ub2e4. \uc774 \uc870\uc9c1\uc740 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uc555\ucd95 \uac15\ub3c4\ub97c \ub192\uc774\uba70 \uc778\uc131\uc740 \uac10\uc18c\uc2dc\ud0b5\ub2c8\ub2e4. \ub098\uba38\uc9c0 \ud2b9\uc131\ub4e4\uc744 \ud0c4\ud654\ubb3c \uc870\uc9c1\uc744 \ud1b5\ud574 \uc774\ud574\ud558\ub294 \uac83\uc774 440C\ub97c \uac00\uc7a5 \ube60\ub974\uac8c \ud30c\uc545\ud558\ub294 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

440A, 440B, 440C: \ud0c4\uc18c\uac15\uc774 \uac15\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5<\/h2>\n\n\n\n

440 \uacc4\uc5f4 \uac15\ucca0\uc740 \ud06c\ub86c\uc744 \uae30\ubcf8 \uc7ac\ub8cc\ub85c \uc0ac\uc6a9\ud558\uba70, \uc8fc\ub85c \ud0c4\uc18c \ud568\ub7c9\uc5d0 \ub530\ub77c \uad6c\ubd84\ub429\ub2c8\ub2e4. \ud0c4\uc18c \ud568\ub7c9\uc740 \uac15\ucca0\uc758 \uacbd\ub3c4\ub97c \uacb0\uc815\ud558\uace0, \uc778\uc131\uc744 \uc5bc\ub9c8\ub098 \ud76c\uc0dd\ud558\ub294\uc9c0\ub97c \uc88c\uc6b0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub4f1\uae09<\/th>\ud0c4\uc18c(%)<\/th>\ucd5c\ub300 \uacbd\ub3c4<\/th>\ub0b4\ub9c8\ubaa8\uc131<\/th>\uc0c1\ub300\uc801 \uc778\uc131<\/th><\/tr><\/thead>
440A<\/td>0.60\uc5d0\uc11c 0.75\uae4c\uc9c0<\/td>56 HRC<\/td>\ub9e4\uccb4<\/td>\ub192\uc74c<\/td><\/tr>
440B<\/a><\/td>0.75\uc5d0\uc11c 0.95\uae4c\uc9c0<\/td>58 HRC<\/td>\uc911\uc0c1\uae09<\/td>\ub9e4\uccb4<\/td><\/tr>
440C<\/td>0.95\uc5d0\uc11c 1.20\uae4c\uc9c0<\/td>60 HRC<\/td>\ub192\uc740<\/td>\ub0ae\uc74c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ud0c4\uc18c\uac00 \ub9ce\uc744\uc218\ub85d \ud06c\ub86c-rich \ud0c4\ud654\ubb3c\uc774 \ud615\uc131\ub418\uc5b4 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc740 \ub192\uc544\uc9c0\uc9c0\ub9cc \uc5f0\uc131\uacfc \ucda9\uaca9 \uac15\ub3c4\ub294 \uac10\uc18c\ud569\ub2c8\ub2e4. \ub0b4\uc2dd\uc131\uacfc \uc778\uc131\uc774 \ub0a0\ubd80 \uc218\uba85\ubcf4\ub2e4 \uc911\uc694\ud55c \uacbd\uc6b0 440A\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624. \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc6b0\uc120\uc774\uace0 \uc81c\ud55c\ub41c \uc778\uc131\uc744 \uace0\ub824\ud558\uc5ec \ubd80\ud488\uc744 \uc124\uacc4\ud560 \uc218 \uc788\ub294 \uacbd\uc6b0 440C\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624. 440B\ub294 \uadf8 \uc911\uac04\uc5d0 \uc704\uce58\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ub3d9\ub4f1 \ub4f1\uae09<\/h2>\n\n\n\n
\ud45c\uc900 \uc2dc\uc2a4\ud15c<\/th>\uc9c0\uc815<\/th><\/tr><\/thead>
AISI \/ SAE<\/td>440C \/ 51440C<\/td><\/tr>
UNS<\/td>S44004<\/td><\/tr>
\uc601\uc5b4\/\ub3c5\uc77c\uc5b4<\/td>1.4125<\/td><\/tr>
\uc601\uc5b4 \uc774\ub984<\/td>X105CrMo17<\/td><\/tr>
ASTM<\/td>A276 (\ub9c9\ub300\uc640 \ub3c4\ud615)<\/td><\/tr>
\ubd84\ub9d0\uc57c\uae08<\/td>MIM 440C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

EN \ub4f1\uae09 1.4125(X105CrMo17)\ub294 \ud0c4\uc18c \ud568\ub7c9 \ubc94\uc704\uac00 \ub300\ub7b5 0.95~1.20%\uc774\uace0 \ud06c\ub86c \ud568\ub7c9 \ubc94\uc704\uac00 16~18%\uc778 AISI 440C\uc640 \uac00\uc7a5 \uc720\uc0ac\ud55c \uc720\ub7fd \uaddc\uaca9\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uae30\uacc4\uc801 \ud2b9\uc131<\/h2>\n\n\n\n

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uae30\uacc4\uc801 \ud2b9\uc131\uc740 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac \ud6c4 \uacbd\ud654 \ucc98\ub9ac \ud6c4 \uae09\uaca9\ud558\uac8c \ubcc0\ud654\ud569\ub2c8\ub2e4. \uc2e4\uc81c\ub85c\ub294 \uac00\uacf5\uc744 \uc704\ud574 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\ub85c \uacf5\uae09\ub41c \ud6c4, \ucd5c\uc885 \uc131\ub2a5\uc744 \uc5bb\uae30 \uc704\ud574 \uc5f4\ucc98\ub9ac\ub429\ub2c8\ub2e4. \ub2e4\uc591\ud55c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ub4f1\uae09\uc758 \ubb3c\ub9ac\uc801 \ud2b9\uc131 \ub370\uc774\ud130\ub294 \ub2e4\uc74c\uc5d0\uc11c \uc218\uc9d1\ub429\ub2c8\ub2e4. \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ubb3c\ub9ac\uc801 \ud2b9\uc131 \ucc28\ud2b8<\/a>.<\/p>\n\n\n\n

\uc131\uc9c8<\/th>\uc5b4\ub2d0\ub9c1 \uc870\uac74<\/th>\uacbd\ud654 \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc<\/th><\/tr><\/thead>
\uacbd\ub3c4<\/td>\uc57d 230 HB (\ucd5c\ub300 270 HB)<\/td>57~60 HRC<\/td><\/tr>
\uc778\uc7a5 \uac15\ub3c4<\/td>\uc57d 758 MPa<\/td>\uc57d 1970 MPa<\/td><\/tr>
\ud56d\ubcf5 \uac15\ub3c4<\/td>\uc57d 430~450 MPa<\/td>\uc57d 1896~1900 MPa<\/td><\/tr>
\uc5f0\uc7a5<\/td>13\uc5d0\uc11c 14%\uae4c\uc9c0<\/td>2%\uc5d0 \ub300\ud558\uc5ec<\/td><\/tr>
\uba74\uc801 \uac10\uc18c<\/td>\uc57d 25%<\/td>10%\uc5d0 \ub300\ud558\uc5ec<\/td><\/tr>
\uc778\uc131(\uc0e4\ub974\ud53c V-\ub178\uce58 \uc2dc\ud5d8)<\/td>\uc77c\ubc18\uc801\uc73c\ub85c \ubcf4\uace0\ub418\uc9c0 \uc54a\uc74c<\/td>3~5 \ud53c\ud2b8\u00b7\ud30c\uc6b4\ub4dcf<\/td><\/tr>
\ud53c\uc0ad\uc131<\/td>\uc57d 40% (AISI 1212 \ub300\ube44)<\/td>\ub9e4\uc6b0 \uc5f4\uc545\ud568<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ud0c4\uc131\uacc4\uc218\ub294 \uc57d 200 GPa\ub85c \ub300\ubd80\ubd84\uc758 \uac15\uacfc \uc720\uc0ac\ud558\ubbc0\ub85c \uc120\uc815 \uc778\uc790\uac00 \ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc5f4\ucc98\ub9ac \ud6c4 \uc774 \uac15\uc740 \ub9e4\uc6b0 \ub192\uc740 \uac15\ub3c4\uc640 \uacbd\ub3c4\ub97c \uc5bb\ub294 \ubc18\uba74 \uc5f0\uc131\uacfc \ub0b4\ucda9\uaca9\uc131\uc740 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. 2%\uc758 \uc5f0\uc2e0\uc728\uacfc \ub0ae\uc740 \uc0e4\ub974\ud53c \uac12\uc774 \uae30\uc5b5\ud574\uc57c \ud560 \uc218\uce58\uc785\ub2c8\ub2e4. 440C\ub294 \ud558\uc911\uc744 \uc798 \uc9c0\uc9c0\ud558\uc9c0\ub9cc \uc7ac\ubd84\ubc30\ud558\uc9c0 \ubabb\ud558\ubbc0\ub85c \uacfc\ubd80\ud558\ub098 \ucda9\uaca9 \uc2dc \ud30c\uc190\uc740 \uc810\uc9c4\uc801\uc774 \uc544\ub2c8\ub77c \uac11\uc791\uc2a4\ub7fd\uac8c \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \uc5f4\ucc98\ub9ac \uac1c\uc694<\/h2>\n\n\n\n

440C\uc758 \uc131\ub2a5\uc740 \uc5f4\ucc98\ub9ac\uc5d0 \ud06c\uac8c \uc758\uc874\ud569\ub2c8\ub2e4. \uc81c\uc5b4\ub41c \uacbd\ud654 \ubc0f \ud15c\ud37c\ub9c1\uc744 \ud1b5\ud574 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc744 \ub2ec\uc131\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud504\ub85c\uc138\uc2a4<\/th>\uc628\ub3c4 \ubc94\uc704<\/th>\uc8fc\uc694 \ubaa9\uc801<\/th><\/tr><\/thead>
\uc5b4\ub2d0\ub9c1<\/td>845~900\u00b0C<\/td>\uac00\uacf5\uc744 \uc704\ud574 \uad6c\uc870\ub97c \ubd80\ub4dc\ub7fd\uac8c \ub9cc\ub4ed\ub2c8\ub2e4.<\/td><\/tr>
\uc608\uc5f4<\/td>\uc57d 790\u00b0C (\ub300\ud615 \ubd80\ud488\uc758 \uacbd\uc6b0 \ub2e4\ub2e8\uacc4 \uacf5\uc815)<\/td>\uc5f4 \uc751\ub825 \ubc0f \ubcc0\ud615\uc744 \uc904\uc785\ub2c8\ub2e4.<\/td><\/tr>
\uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654<\/td>1010~1065\u00b0C (\ucd5c\ub300 1095\u00b0C)<\/td>\ud0c4\ud654\ubb3c\uc744 \uc6a9\ud574\uc2dc\ud0a4\uace0 \uacbd\ud654\ub97c \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<\/td><\/tr>
\ub2f4\uae08\uc9c8<\/td>\uacf5\uae30 \ub610\ub294 \uae30\ub984<\/td>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud615\uc131\ud558\uace0 \uacbd\ub3c4\ub97c \uc5bb\uc2b5\ub2c8\ub2e4.<\/td><\/tr>
\uc601\ud558\uc758 \uce58\ub8cc<\/td>\uc57d -75\u00b0C \ub610\ub294 \uadf8 \uc774\ud558<\/td>\uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uac10\uc18c\uc2dc\ud0a4\uc2ed\uc2dc\uc624.<\/td><\/tr>
\ub728\uc784<\/td>\uc57d 150~370\u00b0C (\uc77c\ubc18\uc801\uc73c\ub85c 315\u00b0C)<\/td>\uacbd\ub3c4\ub97c \uc870\uc808\ud558\uace0 \uc2a4\ud2b8\ub808\uc2a4\ub97c \uc644\ud654\ud558\uc138\uc694<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\ud15c\ud37c\ub9c1 \uc628\ub3c4\ub294 \ucd5c\uc885 \uacb0\uacfc\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc8fc\uc694 \uc81c\uc5b4 \ubcc0\uc218\uc785\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \uc9c1\ud6c4 \uac12\uacfc \ud15c\ud37c\ub9c1 \ud6c4 \uac12\uc758 \ucc28\uc774 \ubc0f \ubcf4\uace0\ub41c \uc218\uce58\uac00 \ub2ec\ub77c\uc9c0\ub294 \uc774\uc720\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ub2e4\uc74c\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624. 440C \uacbd\ud654 \uacbd\ub3c4 \ud398\uc774\uc9c0<\/a>.<\/p>\n\n\n\n

440C\uc758 \ud2b9\uc131\uc774 \uc131\ub2a5\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc740 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h2>\n\n\n\n

\ud575\uc2ec \ud2b9\uc131\uc740 \ub9e5\ub77d \uc18d\uc5d0\uc11c\ub9cc \uc758\ubbf8\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \uc0ac\uc6a9 \uc870\uac74\uc5d0\uc11c 440C\uc758 \uac70\ub3d9\uc740 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131, \ub0b4\uc2dd\uc131 \ubc0f \uc778\uc131 \uac04\uc758 \ud2b8\ub808\uc774\ub4dc\uc624\ud504\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ud558\ub098\ub97c \ub192\uc774\ub294 \ub3d9\uc77c\ud55c \ud0c4\ud654\ubb3c \uc870\uc9c1\uc774 \ubcf4\ud1b5 \ub2e4\ub978 \ud558\ub098\ub97c \ub0ae\ucd94\uae30 \ub54c\ubb38\uc5d0 \uc774\ub4e4 \uc911 \uc5b4\ub290 \uac83\ub3c4 \uac1c\ubcc4\uc801\uc73c\ub85c \ud574\uc11d\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub0b4\ub9c8\ubaa8\uc131<\/h3>\n\n\n\n

440C\ub294 \ub2e8\ub2e8\ud55c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \uae30\uc9c0\uc640 \ub2e4\ub7c9\uc758 \ud06c\ub86c \ud568\uc720 \ud0c4\ud654\ubb3c \ub355\ubd84\uc5d0 \ub6f0\uc5b4\ub09c \ub0b4\ub9c8\ubaa8\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. 57~60 HRC\uc758 \uacbd\ub3c4\ub97c \uc9c0\ub2cc 440C\ub294 \uc811\ucc29 \ub9c8\ubaa8\uc640 \uc5f0\uc0ad \ub9c8\ubaa8 \ubaa8\ub450\uc5d0 \uac15\ud569\ub2c8\ub2e4. \ub2e8\ub2e8\ud55c \uae30\uc9c0\ub294 \ud45c\uba74 \ubcc0\ud615, \uc811\ucc29, \uae01\ud798 \ubc0f \ub9c8\ubaa8\ub97c \ubc29\uc9c0\ud558\uace0, \ud0c4\ud654\ubb3c\uc740 \uc2ac\ub77c\uc774\ub529 \ub610\ub294 \ub864\ub9c1 \uc811\ucd09 \uc2dc \uc808\uc0ad \ubc0f \uae01\ud798\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc131 \ub355\ubd84\uc5d0 440C\ub294 \ub300\ubd80\ubd84\uc758 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\ubcf4\ub2e4 \ud45c\uba74\uacfc \ubaa8\uc11c\ub9ac\ub97c \ub354 \uc624\ub7ab\ub3d9\uc548 \uc548\uc815\uc801\uc73c\ub85c \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub3d9\uc77c\ud55c \ud0c4\ud654\ubb3c\uc774 \ud55c\uacc4\ub97c \uc124\uc815\ud569\ub2c8\ub2e4. \ud0c4\ud654\ubb3c\uc774 \uc870\ub300\ud558\uac70\ub098 \ubd88\uade0\uc77c\ud558\uac8c \ubd84\ud3ec\ud558\uba74 \uad6d\ubd80 \uc751\ub825 \uc9d1\uc911\uc810\uc744 \ud615\uc131\ud558\uc5ec \ubc18\ubcf5 \ub610\ub294 \uad6c\ub984 \uc811\ucd09 \ud558\uc5d0\uc11c \ubbf8\uc138\uade0\uc5f4\uc744 \uc77c\uc73c\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ud30c\uc190 \ubaa8\ub4dc\ub294 \uc815\uc0c1 \ub9c8\ubaa8\uc5d0\uc11c \ud45c\uba74 \ud53c\ub85c\ub85c \uc804\ud658\ub429\ub2c8\ub2e4. \uc11c\ube0c\uc81c\ub85c \ucc98\ub9ac\ub294 \uc794\ub958 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ub97c \uac10\uc18c\uc2dc\ucf1c \uce58\uc218 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uc9c0\ub9cc \uc774 \uba54\ucee4\ub2c8\uc998\uc744 \ubc14\uafb8\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. 440C\ub294 \uc548\uc815\uc801\uc778 \ud558\uc911 \ud558\uc5d0\uc11c\ub294 \uc2e0\ub8b0\ud560 \uc218 \uc788\uc9c0\ub9cc \uc811\ucd09 \ud53c\ub85c\uac00 \ud30c\uc190\uc744 \uc8fc\ub3c4\ud560 \ub54c\ub294 \uc608\uce21 \uac00\ub2a5\uc131\uc774 \ub0ae\uc544\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub0b4\uc2dd\uc131<\/h3>\n\n\n\n

440C\ub294 \uc911\uac04 \uc815\ub3c4\uc758 \ub0b4\uc2dd\uc131\uc744 \uc81c\uacf5\ud558\uba70 \ub300\uae30 \ub178\ucd9c, \uc724\ud65c \uc2dc\uc2a4\ud15c \ubc0f \uacbd\ubd80\ud558 \uc0b0\uc5c5 \uc870\uac74\uacfc \uac19\uc740 \uc628\ud654\ud55c \uc0ac\uc6a9 \ud658\uacbd\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ud55c\uacc4 \uc5ed\uc2dc \ud0c4\ud654\ubb3c\uc5d0\uc11c \ube44\ub86f\ub429\ub2c8\ub2e4. \ud06c\ub86c\uc758 \uc77c\ubd80\uac00 \ud0c4\ud654\ubb3c\uc5d0 \uace0\uc815\ub418\uc5b4<\/a> \ubd80\ub3d9\ud0dc \uc0b0\ud654\ub9c9\uc744 \uc9c0\uc9c0\ud560 \uc218 \uc5c6\uc73c\ubbc0\ub85c \ubcf4\ud638 \ud53c\ub9c9\uc774 \ub354 \uc57d\ud569\ub2c8\ub2e4<\/a> \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uac15\uc885\ubcf4\ub2e4.<\/p>\n\n\n\n

\uc5f4\ucc98\ub9ac\ub294 \uc774\ub97c \ub354\uc6b1 \ubcc0\ud654\uc2dc\ud0b5\ub2c8\ub2e4. \ub192\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\ud654 \uc628\ub3c4\ub294 \ub354 \ub9ce\uc740 \ud569\uae08 \uc6d0\uc18c\ub97c \uace0\uc6a9\uc2dc\ucf1c \ub0b4\uc2dd\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ubc18\uba74, \ud15c\ud37c\ub9c1\uc740 \uad6d\ubd80 \uc870\uc131\uc744 \ubcc0\ud654\uc2dc\ucf1c \ub0b4\uc2dd\uc131\uc744 \uc800\ud558\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uae30\uacc4\uc801 \uc131\ub2a5\uc744 \uc704\ud55c \uc870\uc815\uc740 \ub0b4\uc2dd\uc131 \uc548\uc815\uc131\uc744 \ud76c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 440C\ub294 \uc5fc\ud654\ubb3c\uc774 \ub9ce\uc740 \ud658\uacbd, \uac15\ud55c \ud654\ud559 \ub9e4\uccb4 \ub610\ub294 \uace0\uc628 \ubd80\uc2dd \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

\uc778\uc131 \ubc0f \uae30\uacc4\uc801 \uac70\ub3d9<\/h3>\n\n\n\n

\uacbd\ud654 \uc0c1\ud0dc\uc5d0\uc11c 440C\ub294 \uac15\ub3c4\uac00 \ub192\uc9c0\ub9cc \uc5f0\uc131\uc774 \ub9e4\uc6b0 \ub0ae\uc544 \uc5f0\uc2e0\uc728\uc774 \uc57d 2%\uc785\ub2c8\ub2e4. \ud558\uc911 \ud558\uc5d0\uc11c \uc751\ub825\uc744 \uc7ac\ubd84\ubc30\ud558\uc9c0 \ubabb\ud558\ubbc0\ub85c \uad6d\ubd80 \uc9c0\uc810\uc774 \ud55c\uacc4\ub97c \ucd08\uacfc\ud558\uba74 \ubd80\ud488\uc740 \uac70\uc758 \uacbd\uace0 \uc5c6\uc774 \ud30c\uc190\ub429\ub2c8\ub2e4. \ub300\ud45c\uc801\uc778 \ud30c\uc190 \ubaa8\ub4dc\ub85c\ub294 \ub0a0\ubd80 \uce69\ud551, \uc751\ub825 \uc9d1\uc911\ubd80\uc5d0\uc11c\uc758 \uade0\uc5f4 \uac1c\uc2dc, \ucda9\uaca9 \ub610\ub294 \uad7d\ud798 \ud558\uc5d0\uc11c\uc758 \uac11\uc791\uc2a4\ub7ec\uc6b4 \ucde8\uc131 \ud30c\uad34\uac00 \uc788\uc2b5\ub2c8\ub2e4. \ub0ae\uc740 \uc5f0\uc131\uacfc \uade0\uc5f4 \uac1c\uc2dc\uc810\uc73c\ub85c \uc791\uc6a9\ud558\ub294 \ud0c4\ud654\ubb3c\uc774 \uc774\ub7ec\ud55c \ud30c\uc190\uc744 \uc8fc\ub3c4\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc2e4\uc6a9\uc801\uc778 \uacb0\ub860\uc740 \uc138 \uac00\uc9c0 \ud2b9\uc131 \ubaa8\ub450\uc5d0\uc11c \uc77c\uad00\ub429\ub2c8\ub2e4. 440C\ub294 \uc548\uc815\uc801\uc774\uace0 \uc798 \ubd84\ud3ec\ub41c \ud558\uc911 \ud558\uc5d0\uc11c\ub294 \uc6b0\uc218\ud55c \uc131\ub2a5\uc744 \ubc1c\ud718\ud558\uc9c0\ub9cc \ucda9\uaca9, \uc1fc\ud06c \ub610\ub294 \uc751\ub825 \uc9d1\uc911\uc774 \uacb0\uacfc\ub97c \uc88c\uc6b0\ud560 \ub54c\ub294 \uc2e0\ub8b0\uc131\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n

440C\uc640 \ub2e4\ub978 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ubc0f \uacf5\uad6c\uac15 \ube44\uad50<\/h2>\n\n\n\n

440C\ub97c \uc120\ud0dd\ud558\ub294 \uac83\uc740 \uc774 \uac15\uc885\uc774 \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\uc7c1\ud558\ub294 \ub2e4\ub978 \uac15\uc885\ub4e4\uacfc \ube44\uad50\ud588\uc744 \ub54c \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131, \ub0b4\uc2dd\uc131 \ubc0f \uc778\uc131 \uba74\uc5d0\uc11c \uc5bc\ub9c8\ub098 \uade0\ud615 \uc7a1\ud78c \ud2b9\uc131\uc744 \ubcf4\uc774\ub294\uc9c0 \uc54c\uac8c \ub418\uba74 \ud6e8\uc52c \uc26c\uc6cc\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc131\uc9c8<\/th>440C<\/th>420<\/th>440A \/ 440B<\/th>D2<\/th>316<\/th><\/tr><\/thead>
\uac15\ucca0 \uc885\ub958<\/td>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4<\/td>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4<\/td>\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4<\/td>\uacf5\uad6c\uac15<\/td>\uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/td><\/tr>
\ucd5c\ub300 \uacbd\ub3c4<\/td>\uc57d 60 HRC<\/td>46~54 HRC<\/td>56~58 HRC<\/td>60~62 HRC<\/td>\uac15\ud654 \ubd88\uac00\ub2a5<\/td><\/tr>
\ub0b4\ub9c8\ubaa8\uc131<\/td>\ub192\uc740<\/td>\ub9e4\uccb4<\/td>\ub9e4\uccb4<\/td>\ub9e4\uc6b0 \ub192\uc74c<\/td>\ub0ae\uc740<\/td><\/tr>
\ub0b4\uc2dd\uc131<\/td>\ub9e4\uccb4<\/td>\ub9e4\uccb4<\/td>\uc911\uc0c1\uae09<\/td>\ub0ae\uc740<\/td>\ud6cc\ub96d\ud55c<\/td><\/tr>
\uc778\uc131<\/td>\ub0ae\uc740<\/td>\ub9e4\uccb4<\/td>\ub9e4\uccb4<\/td>\ub9e4\uc6b0 \ub0ae\uc74c<\/td>\ub192\uc740<\/td><\/tr>
\ud53c\uc0ad\uc131<\/td>\uac00\ub09c\ud55c<\/td>\ubcf4\ud1b5\uc758<\/td>\ubcf4\ud1b5\uc758<\/td>\uac00\ub09c\ud55c<\/td>\uc88b\uc740<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

440C\ub294 \ub0b4\ub9c8\ubaa8\uc131\uacfc \ub0b4\uc2dd\uc131\uc758 \uade0\ud615\uc744 \uc774\ub8f9\ub2c8\ub2e4. 420 \ub610\ub294 440A \ub300\ube44 \ub354 \ub192\uc740 \uacbd\ub3c4\uc640 \uae34 \ub9c8\ubaa8 \uc218\uba85\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. D2\uc640 \ube44\uad50\ud558\uba74 \uc77c\ubd80 \ub0b4\ub9c8\ubaa8\uc131\uc744 \ub0b4\uc8fc\uace0 \ub354 \ub098\uc740 \ub0b4\uc2dd\uc131\uc744 \uc5bb\uc2b5\ub2c8\ub2e4. 316\uacfc \ube44\uad50\ud558\uba74 \ud6e8\uc52c \ub192\uc740 \uac15\ub3c4\uc640 \uacbd\ub3c4\ub97c \uc81c\uacf5\ud558\uc9c0\ub9cc \ub0b4\uc2dd\uc131\uc740 \ud6e8\uc52c \ub0ae\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \uc5b8\uc81c \uc0ac\uc6a9\ud574\uc57c \ud560\uae4c\uc694?<\/h2>\n\n\n\n

440C\ub294 \ub192\uc740 \uacbd\ub3c4\uc640 \ub0b4\ub9c8\ubaa8\uc131, \uc911\uac04 \uc815\ub3c4\uc758 \ub0b4\uc2dd\uc131 \ubc0f \uc548\uc815\uc801\uc778 \ud558\uc911\uc744 \uc694\uad6c\ud558\ub294 \uc751\uc6a9 \ubd84\uc57c\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc774 \uc18c\uc7ac\ub294 \uce7c, \uc218\uc220 \uae30\uad6c, \uc815\ubc00 \ube14\ub808\uc774\ub4dc\uc640 \uac19\uc774 \ub0a0 \uc720\uc9c0\ub825\uc774 \uc911\uc694\ud55c \uc815\ubc00 \uc808\uc0ad \uacf5\uad6c\uc5d0 \ud754\ud788 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ubca0\uc5b4\ub9c1 \ubcfc \ubc0f \ub808\uc774\uc2a4\uc640 \uac19\uc740 \uad6c\ub984 \uc811\ucd09 \ubd80\ud488, \ud2b9\ud788 \ud45c\uc900 \ubca0\uc5b4\ub9c1 \uac15\ubcf4\ub2e4 \ub0b4\uc2dd\uc131\uc774 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uc5d0 \ud0c1\uc6d4\ud55c \uc131\ub2a5\uc744 \ubc1c\ud718\ud569\ub2c8\ub2e4. \uc720\uccb4 \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 \ub2f4\uc218 \ub610\ub294 \uc57d\ud55c \uc0b0\uc5c5\uc6a9 \uc720\uccb4\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \ubc38\ube0c \uc2dc\ud2b8, \ub2c8\ub4e4 \ubc38\ube0c \ubc0f \ud38c\ud504 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub610\ud55c \ud45c\uba74 \uacbd\ub3c4\uc640 \uce58\uc218 \uc548\uc815\uc131\uc774 \uc911\uc694\ud55c \ub9c8\ubaa8\uc131 \ub610\ub294 \uc57d\ud55c \ubd80\uc2dd\uc131 \ud3f4\ub9ac\uba38\uc6a9 \ud50c\ub77c\uc2a4\ud2f1 \uae08\ud615 \uc778\uc11c\ud2b8\uc5d0\ub3c4 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uad6c\uc131 \uc694\uc18c \uc720\ud615\ubcc4 \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 440C \uc801\uc6a9 \ubd84\uc57c \ud398\uc774\uc9c0\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

440C \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc744 \uc0ac\uc6a9\ud558\uc9c0 \ub9d0\uc544\uc57c \ud560 \uacbd\uc6b0<\/h2>\n\n\n\n

\uc778\uc131, \uac15\ud55c \ub0b4\uc2dd\uc131 \ub610\ub294 \uc6a9\uc774\ud55c \uac00\uacf5\uc131\uc774 \uc8fc\uc694 \uc694\uad6c \uc0ac\ud56d\uc778 \uacbd\uc6b0\uc5d0\ub9cc 440C\ub97c \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<\/p>\n\n\n\n

\ub0ae\uc740 \uc778\uc131\uc73c\ub85c \uc778\ud574 \ucda9\uaca9 \ub610\ub294 \uad7d\ud798 \ud558\uc5d0\uc11c \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc838 \uad6c\uc870\uc6a9 \ub610\ub294 \ub3d9\uc801 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0\ub294 \ubd80\uc801\ud569\ud569\ub2c8\ub2e4. \ub0b4\uc2dd\uc131\uc740 \uc5fc\ud654\ubb3c\uc774 \ub9ce\uac70\ub098 \ud574\uc591 \ud658\uacbd\uc5d0\uc11c \uc81c\ud55c\uc801\uc774\uba70, \uc774\ub7ec\ud55c \ud658\uacbd\uc5d0\uc11c\ub294 316\uacfc \uac19\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uac15\uc885\uc774 \ub354 \uc2e0\ub8b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub192\uc740 \ud0c4\uc18c \ud568\ub7c9\uacfc \uacf5\uae30 \uacbd\ud654 \uac70\ub3d9\uc73c\ub85c \uc778\ud574 \uc6a9\uc811\uc740 \uc2e0\ub8b0\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uace0\uc628\uc5d0\uc11c \uacbd\ub3c4\uac00 \uc800\ud558\ub418\uc5b4 \uace0\uc628 \uc0ac\uc6a9\uc5d0 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc5b4\ub2d0\ub9c1 \uc0c1\ud0dc\uc5d0\uc11c\ub3c4 \uac00\uacf5\uc774 \uc5b4\ub835\uace0 \uacf5\uad6c \ub9c8\ubaa8\uac00 \ud06c\ubbc0\ub85c \ubcf5\uc7a1\ud558\uac70\ub098 \ub300\ub7c9 \uc0dd\uc0b0 \ubd80\ud488\uc5d0\ub294 \ucf8c\uc0ad \uac15\uc885\uc774 \ub354 \uc2e4\uc6a9\uc801\uc778 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

440C \uc751\uc6a9 \ubd84\uc57c\ub294 \uc18d\uc131\uc5d0 \uae30\ubc18\ud569\ub2c8\ub2e4.<\/h2>\n\n\n\n

440C\ub294 \ub192\uc740 \uacbd\ub3c4, \ub0b4\ub9c8\ubaa8\uc131, \uadf8\ub9ac\uace0 \uc801\ub2f9\ud55c \ub0b4\uc2dd\uc131\uc744 \ubaa8\ub450 \uac16\ucd98 \ud569\uae08\uc73c\ub85c, \uc801\uc6a9 \ubc94\uc704\uac00 \ub9e4\uc6b0 \ub113\uc2b5\ub2c8\ub2e4. \uc8fc\ub85c \ub9c8\ucc30, \uad6c\ub984 \uc811\ucd09, \ub610\ub294 \ubc18\ubcf5\uc801\uc778 \ud45c\uba74 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ub418\uba70, \ub0b4\uc2dd\uc131 \ubca0\uc5b4\ub9c1, \ubc38\ube0c \ubd80\ud488, \uc815\ubc00 \uae30\uae30, \uc808\uc0ad \uacf5\uad6c, \uc0b0\uc5c5\uc6a9 \ube14\ub808\uc774\ub4dc \ub4f1\uc774 \uadf8 \uc608\uc785\ub2c8\ub2e4. \ub0b4\ub9c8\ubaa8\uc131\uacfc \uae30\ubcf8\uc801\uc778 \ubd80\uc2dd \ubc29\uc9c0\uac00 \ubaa8\ub450 \uc694\uad6c\ub418\ub294 \uc758\ub8cc \uae30\uae30, \uc2dd\ud488 \uac00\uacf5 \uc7a5\ube44, \uadf8\ub9ac\uace0 \uc77c\ubd80 \ud56d\uacf5\uc6b0\uc8fc \ub610\ub294 \uc11d\uc720 \uad00\ub828 \ubd80\ud488\uc5d0\ub3c4 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ubd84\ub9d0 \uc57c\uae08 \uacf5\uc815(\uc608: \uae08\uc18d \uc0ac\ucd9c \uc131\ud615)\uc740 \uc815\ubc00 \uc790\ub3d9\ucc28 \ubd80\ud488, \uc7a0\uae08 \uc7a5\uce58, \uc18c\ud615 \ub0b4\ub9c8\ubaa8\uc131 \uc870\ub9bd\ud488 \ub4f1 \uae30\uacc4 \uac00\uacf5\uc774 \ube44\ud6a8\uc728\uc801\uc778 \uc791\uace0 \ubcf5\uc7a1\ud55c \ubd80\ud488\uc744 \uc0dd\uc0b0\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

440C\ub294 \uc778\uc131\uc774 \ub0ae\uace0 \uc5f4 \uc548\uc815\uc131\uc774 \uc81c\ud55c\uc801\uc774\uae30 \ub54c\ubb38\uc5d0 \ucda9\uaca9 \ud558\uc911\uc744 \ubc1b\ub294 \uad6c\uc870\ubb3c\uc774\ub098 \uace0\uc628 \ud658\uacbd\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\uc774 \uad8c\uc7a5\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n