{"id":20166,"date":"2025-01-02T06:40:00","date_gmt":"2025-01-01T22:40:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20166"},"modified":"2025-02-06T17:35:21","modified_gmt":"2025-02-06T09:35:21","slug":"1045","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/1045\/","title":{"rendered":"Th\u00e9p Cacbon 1045: T\u00ednh ch\u1ea5t, Quy tr\u00ecnh, S\u1ea3n ph\u1ea9m"},"content":{"rendered":"<p>SteelPRO Group cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p 1045 ch\u1ea5t l\u01b0\u1ee3ng cao, bao g\u1ed3m t\u1ea5m v\u00e0 thanh. V\u1eadt li\u1ec7u c\u1ee7a ch\u00fang t\u00f4i c\u00f3 s\u1eb5n \u1edf d\u1ea1ng \u0111en v\u00e0 c\u00e1n n\u00f3ng \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n gia c\u00f4ng d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 \u1edf tr\u1ea1ng th\u00e1i chu\u1ea9n h\u00f3a \u0111\u1ec3 c\u00f3 k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c h\u01a1n v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng. Ngo\u00e0i ra, ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 t\u01b0 v\u1ea5n gi\u1ea3i ph\u00e1p v\u00e0 \u0111\u1ecbnh c\u1ee1 t\u00f9y ch\u1ec9nh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a d\u1ef1 \u00e1n.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p cacbon 1045 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p 1045 l\u00e0 th\u00e9p cacbon trung b\u00ecnh v\u1edbi kho\u1ea3ng 0,45% cacbon. N\u00f3 c\u00e2n b\u1eb1ng t\u1ed1t \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 d\u1ebbo dai. Th\u00e9p n\u00e0y ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed, linh ki\u1ec7n \u00f4 t\u00f4 v\u00e0 b\u00e1nh r\u0103ng c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp cao. So v\u1edbi th\u00e9p cacbon th\u1ea5p 1018 ho\u1eb7c 1020, th\u00e9p 1045 c\u00f3 th\u1ec3 tr\u1ea3i qua c\u00e1c qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t c\u00f3 m\u1ee5c ti\u00eau h\u01a1n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc t\u00f9y ch\u1ec9nh.<\/p><p>\u1ede tr\u1ea1ng th\u00e1i c\u00e1n n\u00f3ng, th\u00e9p 1045 d\u1ec5 gia c\u00f4ng h\u01a1n. Khi \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a, n\u00f3 c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc t\u1ed1t h\u01a1n. H\u01a1n n\u1eefa, 1045 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t l\u00ean \u0111\u1ebfn Rc 60 th\u00f4ng qua qu\u00e1 tr\u00ecnh t\u00f4i b\u1eb1ng ng\u1ecdn l\u1eeda ho\u1eb7c c\u1ea3m \u1ee9ng. Qu\u00e1 tr\u00ecnh n\u00e0y c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a n\u00f3. K\u00edch th\u01b0\u1edbc ti\u1ebft di\u1ec7n t\u1ed1i \u0111a \u0111\u1ec3 x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 l\u00e0 kho\u1ea3ng 60mm. Tuy nhi\u00ean, do h\u00e0m l\u01b0\u1ee3ng h\u1ee3p kim th\u1ea5p h\u01a1n v\u00e0 nguy c\u01a1 gi\u00f2n b\u1ec1 m\u1eb7t, n\u00ean vi\u1ec7c th\u1ea5m nit\u01a1 ho\u1eb7c xyanua th\u00e9p cacbon 1045 n\u00f3i chung kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch.<\/p><h2 class=\"wp-block-heading\">T\u01b0\u01a1ng \u0111\u01b0\u01a1ng th\u00e9p 1045<\/h2><p>Sau \u0111\u00e2y l\u00e0 danh s\u00e1ch c\u00e1c v\u1eadt li\u1ec7u t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi th\u00e9p 1045:<\/p><ul class=\"wp-block-list\"><li><strong>GB\/T699<\/strong>: 45<\/li>\n\n<li><strong>Ti\u00eau chu\u1ea9n JIS G4051<\/strong>: S45C<\/li>\n\n<li><strong>Ti\u00eau chu\u1ea9n ASTM A29\/A29M<\/strong>: 1045<\/li>\n\n<li><strong>Ti\u00eau chu\u1ea9n DIN17200<\/strong>: C45\/1.1191<\/li>\n\n<li><strong>Ti\u00eau chu\u1ea9n ISO<\/strong>: C45E4<\/li><\/ul><h2 class=\"wp-block-heading\">1045 S\u1ea3n ph\u1ea9m th\u00e9p cacbon d\u1ea1ng h\u00ecnh v\u00e0 ph\u1ea1m vi cung c\u1ea5p<\/h2><p>SteelPro Group cung c\u1ea5p 1045 s\u1ea3n ph\u1ea9m th\u00e9p \u0111\u1ea1t ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf, c\u00f3 s\u1eb5n \u1edf d\u1ea1ng thanh c\u00e1n ngu\u1ed9i, thanh c\u00e1n n\u00f3ng, t\u1ea5m v\u00e0 \u1ed1ng. Ngo\u00e0i c\u00e1c k\u00edch th\u01b0\u1edbc sau, ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p c\u00e1c k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>M\u1eabu s\u1ea3n ph\u1ea9m<\/strong><\/td><td><strong>\u0110\u01b0\u1eddng k\u00ednh<\/strong><\/td><td><strong>Chi\u1ec1u d\u00e0i<\/strong><\/td><td><strong>\u0110\u1ed9 d\u00e0y\/T\u01b0\u1eddng<\/strong><\/td><\/tr><tr><td>Thanh<\/td><td>6 mm \u0111\u1ebfn 300 mm (0,24 in \u0111\u1ebfn 11,8 in)<\/td><td>3000 mm \u0111\u1ebfn 6000 mm (118 in \u0111\u1ebfn 236 in)<\/td><td>&#8211;<\/td><\/tr><tr><td>T\u1ea5m v\u00e0 t\u1edd<\/td><td>&#8211;<\/td><td>2000 mm \u0111\u1ebfn 6000 mm (78,74 in \u0111\u1ebfn 236,22 in)<\/td><td>5 mm \u0111\u1ebfn 100 mm (0,20 in \u0111\u1ebfn 3,94 in)<\/td><\/tr><tr><td>\u1ed0ng v\u00e0 \u1ed1ng<\/td><td>20 mm \u0111\u1ebfn 200 mm (0,79 in \u0111\u1ebfn 7,87 in)<\/td><td>6000 mm \u0111\u1ebfn 12000 mm (236,22 in \u0111\u1ebfn 472,44 in)<\/td><td>2 mm \u0111\u1ebfn 20 mm (0,08 in \u0111\u1ebfn 0,79 in)<\/td><\/tr><tr><td>S\u1ea3n ph\u1ea9m r\u00e8n<\/td><td>20 mm \u0111\u1ebfn 400 mm (0,79 in \u0111\u1ebfn 15,75 in)<\/td><td>100 mm \u0111\u1ebfn 1500 mm (3,94 in \u0111\u1ebfn 59,06 in)<\/td><td>&#8211;<\/td><\/tr><tr><td>V\u00f2ng tr\u00f2n \u0111\u1ec3 gia c\u00f4ng<\/td><td>10 mm \u0111\u1ebfn 300 mm (0,39 in \u0111\u1ebfn 11,8 in)<\/td><td>3000 mm \u0111\u1ebfn 6000 mm (118 in \u0111\u1ebfn 236 in)<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Th\u00e9p cacbon 1045 c\u00f3 t\u1ed1t kh\u00f4ng?<\/h2><p>C\u00f3. Th\u00e9p 1045 m\u1ec1m d\u1ebbo, cung c\u1ea5p s\u1ef1 k\u1ebft h\u1ee3p t\u1ed1t gi\u1eefa \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo dai v\u00e0 d\u1ec5 gia c\u00f4ng. N\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 b\u00e1nh r\u0103ng v\u00e0 tr\u1ee5c nh\u01b0ng kh\u00f4ng c\u1ee9ng ho\u1eb7c ch\u1ed1ng m\u00e0i m\u00f2n b\u1eb1ng th\u00e9p cacbon cao h\u01a1n.<\/p><h2 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p cacbon 1045<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td>C<\/td><td>Mn<\/td><td>P<\/td><td>S<\/td><\/tr><tr><td>0.43-0.5<\/td><td>0.6-0.9<\/td><td>\u22640,04<\/td><td>\u22640,05<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">H\u00e0m l\u01b0\u1ee3ng cacbon trong th\u00e9p cacbon 1045<\/h3><p>H\u00e0m l\u01b0\u1ee3ng carbon 0,45% trong th\u00e9p 1045 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng trong khi v\u1eabn duy tr\u00ec kh\u1ea3 n\u0103ng gia c\u00f4ng. Tuy nhi\u00ean, n\u00f3 h\u1ea1n ch\u1ebf qu\u00e1 tr\u00ecnh t\u00f4i xuy\u00ean su\u1ed1t, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 b\u00e1nh r\u0103ng v\u00e0 tr\u1ee5c \u0111\u00f2i h\u1ecfi \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t cao.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p cacbon 1045<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb s\u1ed1 li\u1ec7u<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>7,85g\/cm\u00b3<\/td><td>0,284 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1450-1500 \u00b0C<\/td><td>2642-2732 \u00b0F<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>51,9 W\/mK<\/td><td>360 BTU-in\/hr-ft\u00b2-\u00b0F<\/td><\/tr><tr><td>Nhi\u1ec7t dung ri\u00eang<\/td><td>0,486 J\/g-\u00b0C, \u2265100 \u00b0C<\/td><td>0,116 BTU\/lb-\u00b0F, \u2265212 \u00b0F<\/td><\/tr><\/tbody><\/table><\/figure><p>B\u1ea3ng sau \u0111\u00e2y cung c\u1ea5p h\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t (CTE) v\u00e0 ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ram c\u1ee7a th\u00e9p 1045.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>CTE (H\u1ec7 m\u00e9t)<\/strong><\/td><td><strong>CTE (\u0110\u1ebf qu\u1ed1c)<\/strong><\/td><td><strong>Nhi\u1ec7t \u0111\u1ed9 (M\u00e9t)<\/strong><\/td><td><strong>T\u00ednh kh\u00ed (Ho\u00e0ng gia)<\/strong><\/td><\/tr><tr><td>11,5 \u00b5m\/m-\u00b0C<\/td><td>6,39 \u00b5in\/in-\u00b0F<\/td><td>0,000 \u2013 100 \u00b0C<\/td><td>32,0 \u2013 212 \u00b0F<\/td><\/tr><tr><td>11,9 \u00b5m\/m-\u00b0C<\/td><td>6,61 \u00b5in\/in-\u00b0F<\/td><td>25,0 \u2013 200 \u00b0C<\/td><td>77,0 \u2013 392 \u00b0F<\/td><\/tr><tr><td>12,6 \u00b5m\/m-\u00b0C<\/td><td>7,00 \u00b5in\/in-\u00b0F<\/td><td>25,0 \u2013 300 \u00b0C<\/td><td>77,0 \u2013 572 \u00b0F<\/td><\/tr><tr><td>13,5 \u00b5m\/m-\u00b0C<\/td><td>7,50 \u00b5in\/in-\u00b0F<\/td><td>25,0 \u2013 400 \u00b0C<\/td><td>77,0 \u2013 752 \u00b0F<\/td><\/tr><tr><td>14,4 \u00b5m\/m-\u00b0C<\/td><td>25,0 \u2013 600 \u00b0C<\/td><td>8,00 \u00b5in\/in-\u00b0F<\/td><td>77,0 \u2013 1110 \u00b0F<\/td><\/tr><tr><td>14,8 \u00b5m\/m-\u00b0C<\/td><td>25,0 \u2013 700 \u00b0C<\/td><td>8,22 \u00b5in\/in-\u00b0F<\/td><td>77,0 \u2013 1290 \u00b0F<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p cacbon 1045<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb s\u1ed1 li\u1ec7u<\/strong><\/td><td><strong>Gi\u00e1 tr\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>570-700MPa<\/td><td>82.600-101.500 psi<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>310-410MPa<\/td><td>45.000-60.000 psi<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>12-18%<\/td><td>12-18%<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng (HB)<\/td><td>170-210 HB<\/td><td>170-210 HB<\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n va \u0111\u1eadp<\/td><td>27 J (trung b\u00ecnh)<\/td><td>20 ft-lb<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>210 GPa<\/td><td>30,5 x 10\u2076 psi<\/td><\/tr><tr><td>T\u1ef7 s\u1ed1 Poisson<\/td><td>0.29<\/td><td>0.29<\/td><\/tr><tr><td>M\u00f4 \u0111un c\u1eaft<\/td><td>80,0 GPa<\/td><td>11600 ksi<\/td><\/tr><tr><td>M\u00f4 \u0111un kh\u1ed1i<\/td><td>163 GPa<\/td><td>23600 ksi<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">R\u00e8n th\u00e9p cacbon 1045<\/h2><p>B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch nung n\u00f3ng th\u00e9p tr\u01b0\u1edbc \u1edf nhi\u1ec7t \u0111\u1ed9 750-800\u00b0C. Khi \u0111\u1ea1t \u0111\u1ebfn ph\u1ea1m vi n\u00e0y, ti\u1ebfp t\u1ee5c nung n\u00f3ng \u0111\u1ebfn 1100-1200\u00b0C, \u0111\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean to\u00e0n b\u1ed9 ph\u1ea7n. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 kh\u00f4ng r\u00e8n d\u01b0\u1edbi 850\u00b0C v\u00ec \u0111\u1ed9 d\u1ebbo c\u1ee7a th\u00e9p gi\u1ea3m \u0111\u00e1ng k\u1ec3 d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 n\u00e0y, khi\u1ebfn th\u00e9p d\u1ec5 b\u1ecb n\u1ee9t h\u01a1n.&nbsp;<\/p><p>Sau khi qu\u00e1 tr\u00ecnh r\u00e8n ho\u00e0n t\u1ea5t, v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed.<\/p><h2 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t th\u00e9p cacbon 1045<\/h2><h3 class=\"wp-block-heading\">\u1ee6<\/h3><p>L\u00e0m n\u00f3ng th\u00e9p \u0111\u1ebfn 800-850\u00b0C (1472-1562\u00b0F) v\u00e0 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 cho \u0111\u1ebfn khi ph\u00e2n b\u1ed1 \u0111\u1ec1u. Sau \u0111\u00f3, \u0111\u1ec3 v\u1eadt li\u1ec7u ngu\u1ed9i t\u1eeb t\u1eeb trong l\u00f2 \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh m\u1ec1m v\u00e0 d\u1ebbo mong mu\u1ed1n.<\/p><h3 class=\"wp-block-heading\">Gi\u1ea3m c\u0103ng th\u1eb3ng<\/h3><p>L\u00e0m n\u00f3ng th\u00e9p nhanh nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 austenit trong kho\u1ea3ng 820-860\u00b0C (1508-1580\u00b0F). Khi th\u00e9p \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 n\u00e0y, l\u00e0m ngu\u1ed9i trong n\u01b0\u1edbc ho\u1eb7c d\u1ea7u, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 c\u1ee9ng c\u1ea7n thi\u1ebft.<\/p><p>Sau khi l\u00e0m ngu\u1ed9i, t\u00f4i v\u1eadt li\u1ec7u \u1edf nhi\u1ec7t \u0111\u1ed9 150-200\u00b0C (302-392\u00b0F) \u0111\u1ec3 gi\u1ea3i ph\u00f3ng m\u1ecdi \u1ee9ng su\u1ea5t m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1ecf.<\/p><h3 class=\"wp-block-heading\">L\u00e0m c\u1ee9ng<\/h3><p>L\u00e0m n\u00f3ng th\u00e9p \u0111\u1ebfn 820-850\u00b0C (1508-1562\u00b0F) v\u00e0 ng\u00e2m trong 10-15 ph\u00fat cho m\u1ed7i 25mm (1 inch) \u0111\u1ed9 d\u00e0y c\u1ee7a ph\u1ea7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o nhi\u1ec7t th\u1ea9m th\u1ea5u \u0111\u1ec1u. L\u00e0m ngu\u1ed9i th\u00e9p trong n\u01b0\u1edbc ho\u1eb7c n\u01b0\u1edbc mu\u1ed1i \u0111\u1ec3 l\u00e0m ngu\u1ed9i nhanh.&nbsp;<\/p><p>Ho\u1eb7c, \u0111un n\u00f3ng \u0111\u1ebfn 830-860\u00b0C (1526-1580\u00b0F), ng\u00e2m, sau \u0111\u00f3 l\u00e0m ngu\u1ed9i trong d\u1ea7u. Khi ngu\u1ed9i \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 \u1ea5m b\u1eb1ng tay, h\u00e3y t\u00f4i th\u00e9p ngay l\u1eadp t\u1ee9c.<\/p><h3 class=\"wp-block-heading\">Chu\u1ea9n h\u00f3a<\/h3><p>L\u00e0m n\u00f3ng th\u00e9p \u0111\u1ebfn 870-920\u00b0C (1598-1688\u00b0F) v\u00e0 ng\u00e2m trong 10-15 ph\u00fat \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u. Sau \u0111\u00f3, \u0111\u1ec3 ngu\u1ed9i trong kh\u00f4ng kh\u00ed. Quy tr\u00ecnh n\u00e0y c\u1ea3i thi\u1ec7n c\u1ea5u tr\u00fac h\u1ea1t v\u00e0 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng gia c\u00f4ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u.<\/p><h3 class=\"wp-block-heading\">Gi\u1ea3m c\u0103ng th\u1eb3ng<\/h3><p>L\u00e0m n\u00f3ng th\u00e9p \u0111\u1ebfn 550-660\u00b0C (1022-1220\u00b0F) v\u00e0 ng\u00e2m trong 1 gi\u1edd cho m\u1ed7i 25mm (1 inch) \u0111\u1ed9 d\u00e0y c\u1ee7a ph\u1ea7n. L\u00e0m ngu\u1ed9i t\u1eeb t\u1eeb trong kh\u00f4ng kh\u00ed t\u0129nh. B\u01b0\u1edbc n\u00e0y gi\u00fap gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p.<\/p><h3 class=\"wp-block-heading\">L\u00e0m ngu\u1ed9i<\/h3><p>L\u00e0m n\u00f3ng l\u1ea1i th\u00e9p \u0111\u1ebfn 400-650\u00b0C (752-1202\u00b0F) khi c\u1ea7n thi\u1ebft v\u00e0 ng\u00e2m trong 1 gi\u1edd cho m\u1ed7i 25mm (1 inch) \u0111\u1ed9 d\u00e0y c\u1ee7a ph\u1ea7n. Sau khi ng\u00e2m, l\u00e0m m\u00e1t v\u1eadt li\u1ec7u trong kh\u00f4ng kh\u00ed t\u0129nh. T\u00f4i luy\u1ec7n l\u00e0m gi\u1ea3m \u0111\u1ed9 gi\u00f2n, c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ea3m b\u1ea3o th\u00e9p duy tr\u00ec \u0111\u1ed9 c\u1ee9ng c\u1ea7n thi\u1ebft.<\/p><h2 class=\"wp-block-heading\">Gia c\u00f4ng th\u00e9p 1045<\/h2><p>Th\u00e9p 1045 d\u1ec5 gia c\u00f4ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi \u1edf tr\u1ea1ng th\u00e1i th\u01b0\u1eddng h\u00f3a ho\u1eb7c c\u00e1n n\u00f3ng. \u0110\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t, h\u00e3y \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u ch\u1ec9nh c\u00e1c th\u00f4ng s\u1ed1 c\u1eaft c\u1ee7a b\u1ea1n cho ph\u00f9 h\u1ee3p v\u1edbi ho\u1ea1t \u0111\u1ed9ng c\u1ee5 th\u1ec3 v\u00e0 gi\u1eef cho d\u1ee5ng c\u1ee5 s\u1eafc b\u00e9n \u0111\u1ec3 tr\u00e1nh hao m\u00f2n kh\u00f4ng c\u1ea7n thi\u1ebft. S\u1eed d\u1ee5ng ch\u1ea5t l\u00e0m m\u00e1t th\u00edch h\u1ee3p c\u0169ng s\u1ebd gi\u00fap duy tr\u00ec hi\u1ec7u qu\u1ea3 v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a d\u1ee5ng c\u1ee5.<\/p><p>H\u00e3y cho ch\u00fang t\u00f4i bi\u1ebft n\u1ebfu b\u1ea1n c\u1ea7n b\u1ea5t k\u1ef3 h\u01b0\u1edbng d\u1eabn n\u00e0o v\u1ec1 gia c\u00f4ng th\u00e9p 1045 cho nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n!<\/p><h2 class=\"wp-block-heading\">H\u00e0n th\u00e9p 1045<\/h2><p>Th\u00e9p 1045 c\u00f3 th\u1ec3 h\u00e0n \u0111\u01b0\u1ee3c, nh\u01b0ng kh\u00f4ng n\u00ean h\u00e0n \u1edf tr\u1ea1ng th\u00e1i t\u00f4i ho\u1eb7c ram ho\u00e0n to\u00e0n v\u00ec c\u00f3 nguy c\u01a1 n\u1ee9t.&nbsp;<\/p><p>Ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean s\u1eed d\u1ee5ng \u0111i\u1ec7n c\u1ef1c hydro th\u1ea5p \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t. \u0110\u1ed1i v\u1edbi c\u00e1c ph\u1ea7n d\u00e0y h\u01a1n, vi\u1ec7c l\u00e0m n\u00f3ng th\u00e9p tr\u01b0\u1edbc \u1edf nhi\u1ec7t \u0111\u1ed9 150-250\u00b0C (300-480\u00b0F) s\u1ebd h\u1eefu \u00edch. X\u1eed l\u00fd nhi\u1ec7t sau khi h\u00e0n (PWHT) c\u0169ng r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t v\u00e0 b\u1ea3o to\u00e0n c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p 1045 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h2><p>Th\u00e9p 1.2312 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng sau:<\/p><ul class=\"wp-block-list\"><li><strong>Khu\u00f4n \u00e9p phun<\/strong>: V\u00ec <strong>ph\u1ee5 t\u00f9ng \u00f4 t\u00f4<\/strong> nh\u01b0 c\u1ea3n v\u00e0 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/li>\n\n<li><strong>Khu\u00f4n Nh\u1ef1a<\/strong>: V\u00ec <strong>v\u1ecf thi\u1ebft b\u1ecb<\/strong> V\u00e0 <strong>\u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng<\/strong>.<\/li>\n\n<li><strong>\u0110\u00fac khu\u00f4n<\/strong>: V\u00ec <strong>kh\u1ed1i \u0111\u1ed9ng c\u01a1 nh\u00f4m<\/strong> V\u00e0 <strong>th\u00e0nh ph\u1ea7n k\u1ebdm<\/strong>.<\/li>\n\n<li><strong>Khu\u00f4n th\u1ed5i<\/strong>: V\u00ec <strong>chai nh\u1ef1a<\/strong>.<\/li>\n\n<li><strong>C\u00f4ng c\u1ee5<\/strong>: V\u00ec <strong>\u0111\u1ed3 g\u00e1<\/strong> V\u00e0 <strong>\u0111\u1ed3 \u0111\u1ea1c<\/strong> trong ng\u00e0nh h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 \u00f4 t\u00f4.<\/li><\/ul><h3 class=\"wp-block-heading\">Th\u00e9p 1045 c\u00f3 t\u1ed1t \u0111\u1ec3 l\u00e0m dao kh\u00f4ng?<\/h3><p>Th\u00e9p 1045 c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m dao nh\u01b0ng kh\u00f4ng l\u00fd t\u01b0\u1edfng cho c\u00e1c d\u1ee5ng c\u1ee5 c\u1eaft hi\u1ec7u su\u1ea5t cao. M\u1eb7c d\u00f9 c\u00f3 \u0111\u1ed9 b\u1ec1n t\u1ed1t nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 gi\u1eef c\u1ea1nh c\u1ee7a n\u00f3 th\u1ea5p h\u01a1n <a href=\"https:\/\/steelprogroup.com\/vi\/high-carbon-steel\/\">th\u00e9p cacbon cao<\/a> nh\u01b0 1095 ho\u1eb7c D2.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p 1045 so v\u1edbi th\u00e9p 4140<\/h2><p>Th\u00e9p 4140 ch\u1ee9a crom v\u00e0 molypden, mang l\u1ea1i kh\u1ea3 n\u0103ng l\u00e0m c\u1ee9ng, ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao. N\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu \u1ee9ng su\u1ea5t cao, trong khi 1045 c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n v\u00e0 d\u1ec5 gia c\u00f4ng h\u01a1n nh\u01b0ng kh\u00f4ng c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a 4140.<\/p><h2 class=\"wp-block-heading\">Ch\u1ecdn \u0111\u00fang lo\u1ea1i th\u00e9p 1045 cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n<\/h2><p>SteelPro Group cung c\u1ea5p th\u00e9p 1045 \u1edf nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m th\u00e9p c\u00e1n ngu\u1ed9i, th\u00e9p c\u00e1n n\u00f3ng v\u00e0 th\u00e9p k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh, t\u1ea5t c\u1ea3 \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf theo nhu c\u1ea7u c\u1ee7a b\u1ea1n. Ch\u00fang t\u00f4i c\u0169ng cung c\u1ea5p <a href=\"https:\/\/steelprogroup.com\/vi\/tool-steel\/cr12mov\/\">Th\u00e9p c\u00f4ng c\u1ee5 D2<\/a>, ho\u00e0n h\u1ea3o cho c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao nh\u01b0 l\u01b0\u1ee1i dao.&nbsp;<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>SteelPRO Group offers high-quality 1045 steel products, including plates and bars. Our materials are available in black and hot-rolled states [&hellip;]<\/p>","protected":false},"author":1,"featured_media":20158,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","rank_math_lock_modified_date":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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-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":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4294,4293],"tags":[],"class_list":["post-20166","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grades-tool-steel","category-tool-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=20166"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20166\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20158"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}