{"id":19884,"date":"2024-12-23T02:32:00","date_gmt":"2024-12-22T18:32:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=19884"},"modified":"2024-12-23T13:34:42","modified_gmt":"2024-12-23T05:34:42","slug":"s2","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/tool-steel\/grades\/s2\/","title":{"rendered":"Th\u00e9p c\u00f4ng c\u1ee5 S2: T\u00ednh ch\u1ea5t v\u00e0 ch\u1ebf t\u1ea1o"},"content":{"rendered":"<p>Ch\u00e0o m\u1eebng b\u1ea1n \u0111\u1ebfn v\u1edbi h\u01b0\u1edbng d\u1eabn v\u1ec1 th\u00e9p S2! N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp tuy\u1ec7t v\u1eddi, th\u00e9p S2 l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi. L\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a nh\u00f3m AISI S, th\u00e9p n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u00f4i tr\u01b0\u1eddng ch\u1ecbu t\u00e1c \u0111\u1ed9ng m\u1ea1nh v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c c\u00f4ng c\u1ee5 b\u1ec1n, c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/p><p>\u0110\u1ed9 c\u1ee9ng c\u1ee7a th\u00e9p S2 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a n\u00f3, cho ph\u00e9p n\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng t\u1ed1i \u01b0u \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n \u0111\u1ec3 ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t h\u01a1n. Vi\u1ec7c b\u1ed5 sung silicon c\u0169ng t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 c\u1ee9ng v\u00e0 ch\u1ed1ng bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi nhi\u1ec7t.<\/p><p>H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c \u0111\u1eb7c t\u00ednh, ch\u1ebf t\u1ea1o v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p S2 \u0111\u1ec3 gi\u00fap b\u1ea1n th\u1ea5y l\u00fd do t\u1ea1i sao \u0111\u00e2y l\u00e0 v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec7u su\u1ea5t cao. Ch\u00fang t\u00f4i hy v\u1ecdng b\u1ea3n t\u00f3m t\u1eaft ng\u1eafn g\u1ecdn n\u00e0y s\u1ebd gi\u00fap b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh \u0111\u00fang \u0111\u1eafn!<\/p><h2 class=\"wp-block-heading\">Th\u00e9p S2 l\u00e0 g\u00ec?<\/h2><p>Th\u00e9p S2 l\u00e0 lo\u1ea1i th\u00e9p c\u00f4ng c\u1ee5 c\u1ee9ng, c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon cao, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp tuy\u1ec7t v\u1eddi, l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 b\u00faa v\u00e0 \u0111\u1ee5c. Th\u00e9p n\u00e0y ch\u1ee9a kho\u1ea3ng 0,90\u20131,10% carbon v\u00e0 0,50\u20130,80% silicon. \u201cS\u201d l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a \u201cch\u1ed1ng s\u1ed1c\u201d v\u00e0 \u201c2\u201d \u0111\u00e1nh d\u1ea5u c\u1ea5p \u0111\u1ed9 c\u1ee5 th\u1ec3 c\u1ee7a th\u00e9p. Th\u00e9p S2 \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ec3 t\u0103ng th\u00eam \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p nh\u01b0 ASTM A681, khi\u1ebfn th\u00e9p n\u00e0y tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady cho c\u00e1c \u1ee9ng d\u1ee5ng h\u1ea1ng n\u1eb7ng.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 S2<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 S2 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u1ed9 b\u1ec1n cao, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho c\u00e1c c\u00f4ng c\u1ee5 ch\u1ecbu \u00e1p l\u1ef1c v\u00e0 va \u0111\u1eadp m\u1ea1nh. Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 c\u1ee9ng ngay c\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 cao l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 ch\u00ednh gi\u00fap t\u0103ng \u0111\u1ed9 b\u1ec1n c\u1ee7a n\u00f3.&nbsp;<\/p><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 S2<\/h3><p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 s2.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>N\u1ed9i dung (%)<\/strong><\/td><\/tr><tr><td>Cacbon, C<\/td><td>0.90 &#8211; 1.10<\/td><\/tr><tr><td>Silic, Si<\/td><td>0.50 &#8211; 0.80<\/td><\/tr><tr><td>Mangan, Mn<\/td><td>0.50 &#8211; 0.80<\/td><\/tr><tr><td>Crom, Cr<\/td><td>0.30 &#8211; 0.60<\/td><\/tr><tr><td>Molypden, Mo<\/td><td>0.20 &#8211; 0.40<\/td><\/tr><tr><td>Ph\u1ed1t pho, P<\/td><td>\u2264 0,030<\/td><\/tr><tr><td>L\u01b0u hu\u1ef3nh, S<\/td><td>\u2264 0,030<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 S2<\/h3><p>C\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd c\u1ee7a th\u00e9p S2 \u0111\u1ea3m b\u1ea3o n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t. Sau \u0111\u00e2y l\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd ch\u00ednh c\u1ee7a n\u00f3:<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>H\u1ec7 m\u00e9t<\/strong><\/td><td><strong>\u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u1ec9 tr\u1ecdng<\/td><td>7,75 g\/cm\u00b3<\/td><td>0,280 lb\/in\u00b3<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>27,5 W\/m\u00b7K<\/td><td>19,0 BTU\u00b7in\/h\u00b7ft\u00b2\u00b7\u00b0F<\/td><\/tr><tr><td>Tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang<\/td><td>7.75<\/td><td>0.28<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>210 GPa<\/td><td>30,5 \u00d7 10\u2076 psi<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>12,5 \u00b5m\/m\u00b7\u00b0C<\/td><td>7,0 \u00d7 10\u207b\u2076 \/\u00b0F<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 S2<\/h3><p>C\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 S2 l\u00e0m cho n\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee9ng, ch\u1ecbu t\u00e1c \u0111\u1ed9ng m\u1ea1nh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc ch\u00ednh c\u1ee7a n\u00f3:<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>H\u1ec7 m\u00e9t<\/strong><\/td><td><strong>\u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>T\u00e1c \u0111\u1ed9ng Charpy<\/td><td>20 th\u00e1ng<\/td><td>14,8 ft-lb<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng<\/td><td>58-60 HRC<\/td><td>58-60 HRC<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng gia c\u00f4ng<\/td><td>65% (so v\u1edbi W1)<\/td><td>65% (so v\u1edbi W1)<\/td><\/tr><tr><td>T\u1ef7 s\u1ed1 Poisson<\/td><td>0.27<\/td><td>0.27<\/td><\/tr><\/tbody><\/table><\/figure><h4 class=\"wp-block-heading\">Th\u00e9p S2 c\u00f3 th\u1ec3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h4><p>C\u00f3, th\u00e9p S2 c\u00f3 th\u1ec3 b\u1ecb g\u1ec9 n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ch\u0103m s\u00f3c \u0111\u00fang c\u00e1ch, v\u00ec n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n khi ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m v\u00e0 h\u00f3a ch\u1ea5t. B\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang c\u00e1ch, nh\u01b0 ph\u1ee7 l\u1edbp s\u01a1n ho\u1eb7c v\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean, gi\u00fap ng\u0103n ng\u1eeba g\u1ec9.<\/p><h2 class=\"wp-block-heading\">S\u1ea3n ph\u1ea9m ch\u00fang t\u00f4i cung c\u1ea5p cho th\u00e9p l\u00e0m vi\u1ec7c ngu\u1ed9i S2<\/h2><p>SteelPRO Group l\u00e0 nh\u00e0 cung c\u1ea5p chuy\u00ean nghi\u1ec7p v\u1eadt li\u1ec7u th\u00e9p c\u00f4ng c\u1ee5 S2, cung c\u1ea5p c\u00e1c thanh tr\u00f2n, thanh ph\u1eb3ng, t\u1ea5m v\u00e0 thanh S2 ch\u1ea5t l\u01b0\u1ee3ng cao. Ch\u00fang t\u00f4i \u0111\u00e1p \u1ee9ng nhi\u1ec1u nhu c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng v\u00e0 cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p cho c\u00e1c d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n. \u0110\u1ec3 bi\u1ebft gi\u00e1 c\u1ea3 v\u00e0 t\u00ecnh tr\u1ea1ng c\u00f2n h\u00e0ng h\u00e0ng ng\u00e0y, vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i.<\/p><p><strong>C\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f3 s\u1eb5n c\u1ee7a ch\u00fang t\u00f4i bao g\u1ed3m:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>Thanh th\u00e9p tr\u00f2n S2<\/strong>: \u0110\u01b0\u1eddng k\u00ednh 10mm \u2013 800mm<\/li>\n\n<li><strong>T\u1ea5m th\u00e9p S2<\/strong>: \u0110\u1ed9 d\u00e0y 5mm \u2013 500mm x Chi\u1ec1u r\u1ed9ng 150mm \u2013 2000mm<\/li>\n\n<li><strong>Thanh th\u00e9p S2<\/strong>: \u0110\u01b0\u1eddng k\u00ednh 6mm \u2013 500mm<\/li>\n\n<li><strong>K\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh c\u1ee7a th\u00e9p S2<\/strong>: C\u00f3 s\u1eb5n theo y\u00eau c\u1ea7u<\/li><\/ul><p><strong>C\u00e1c d\u1ecbch v\u1ee5 b\u1ed5 sung ch\u00fang t\u00f4i cung c\u1ea5p:<\/strong><\/p><ul class=\"wp-block-list\"><li><strong>Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/strong>: \u0110en, Ti\u1ec7n th\u00f4, \u0110\u00e1nh b\u00f3ng ho\u1eb7c theo y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng<\/li>\n\n<li><strong>Qu\u00e1 tr\u00ecnh<\/strong>: C\u00e1n n\u00f3ng, K\u00e9o ngu\u1ed9i, R\u00e8n, \u1ee6, C\u1eaft<\/li><\/ul><p>H\u00e3y tho\u1ea3i m\u00e1i li\u00ean h\u1ec7 \u0111\u1ec3 bi\u1ebft th\u00eam y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 ho\u1eb7c \u0111\u01a1n \u0111\u1eb7t h\u00e0ng t\u00f9y ch\u1ec9nh!<\/p><h2 class=\"wp-block-heading\">Ch\u1ebf t\u1ea1o th\u00e9p c\u00e1n ngu\u1ed9i S2<\/h2><p>Ch\u1ebf t\u1ea1o th\u00e9p l\u00e0m ngu\u1ed9i S2 \u0111\u00f2i h\u1ecfi c\u00e1c quy tr\u00ecnh ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o th\u00e9p c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n tuy\u1ec7t v\u1eddi. T\u1eeb r\u00e8n v\u00e0 c\u00e1n \u0111\u1ebfn x\u1eed l\u00fd nhi\u1ec7t v\u00e0 gia c\u00f4ng, m\u1ed7i b\u01b0\u1edbc \u0111\u1ec1u r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ti\u1ec1m n\u0103ng \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a th\u00e9p.<\/p><h3 class=\"wp-block-heading\">R\u00e8n\/C\u00e1n<\/h3><p>Trong qu\u00e1 tr\u00ecnh r\u00e8n, th\u00e9p S2 \u0111\u01b0\u1ee3c nung n\u00f3ng \u0111\u1ebfn kho\u1ea3ng 1100-1200\u00b0C (2012-2192\u00b0F) v\u00e0 \u0111\u1ecbnh h\u00ecnh b\u1eb1ng c\u00e1ch \u00e9p ho\u1eb7c \u0111\u1eadp. C\u00e1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c ph\u1ea7n m\u1ecfng h\u01a1n \u1edf nhi\u1ec7t \u0111\u1ed9 850-950\u00b0C (1562-1742\u00b0F). C\u1ea3 hai ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec1u tinh ch\u1ec9nh c\u1ea5u tr\u00fac h\u1ea1t, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai.<\/p><h3 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t<\/h3><p>X\u1eed l\u00fd nhi\u1ec7t l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 t\u0103ng \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n c\u1ee7a th\u00e9p S2:<\/p><ul class=\"wp-block-list\"><li><strong>\u1ee6<\/strong>: Nung n\u00f3ng \u0111\u1ebfn 800-850\u00b0C (1472-1562\u00b0F) v\u00e0 l\u00e0m ngu\u1ed9i t\u1eeb t\u1eeb \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t v\u00e0 l\u00e0m m\u1ec1m th\u00e9p \u0111\u1ec3 gia c\u00f4ng d\u1ec5 d\u00e0ng h\u01a1n.<\/li>\n\n<li><strong>L\u00e0m n\u00f3ng tr\u01b0\u1edbc<\/strong>: \u0110\u01b0\u1ee3c nung \u1edf nhi\u1ec7t \u0111\u1ed9 500-650\u00b0C (932-1202\u00b0F) tr\u01b0\u1edbc khi l\u00e0m c\u1ee9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o gia nhi\u1ec7t \u0111\u1ec1u v\u00e0 tr\u00e1nh s\u1ed1c nhi\u1ec7t.<\/li>\n\n<li><strong>Austenit h\u00f3a<\/strong>:Th\u00e9p \u0111\u01b0\u1ee3c nung t\u1edbi nhi\u1ec7t \u0111\u1ed9 850-900\u00b0C (1562-1652\u00b0F), t\u1ea1i \u0111\u00f3 th\u00e9p chuy\u1ec3n th\u00e0nh austenit, chu\u1ea9n b\u1ecb cho qu\u00e1 tr\u00ecnh l\u00e0m c\u1ee9ng.<\/li>\n\n<li><strong>L\u00e0m ngu\u1ed9i<\/strong>: L\u00e0m ngu\u1ed9i nhanh (th\u01b0\u1eddng b\u1eb1ng d\u1ea7u ho\u1eb7c kh\u00f4ng kh\u00ed) \u1edf nhi\u1ec7t \u0111\u1ed9 800-850\u00b0C (1472-1562\u00b0F) \u0111\u1ec3 l\u00e0m c\u1ee9ng th\u00e9p.<\/li>\n\n<li><strong>L\u00e0m ngu\u1ed9i<\/strong>: \u0110\u01b0\u1ee3c nung \u1edf nhi\u1ec7t \u0111\u1ed9 150-300\u00b0C (302-572\u00b0F) \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 gi\u00f2n v\u00e0 t\u0103ng \u0111\u1ed9 dai sau khi t\u00f4i.<\/li>\n\n<li><strong>L\u00e0m vi\u1ec7c l\u1ea1nh<\/strong>: Cu\u1ed1i c\u00f9ng, th\u00e9p c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia c\u00f4ng ngu\u1ed9i \u0111\u1ec3 tinh ch\u1ec9nh h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u1ed9 ho\u00e0n thi\u1ec7n.<\/li><\/ul><h3 class=\"wp-block-heading\">Gia c\u00f4ng<\/h3><p>Th\u00e9p S2 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng gia c\u00f4ng sau khi x\u1eed l\u00fd nhi\u1ec7t th\u00edch h\u1ee3p. C\u00e1c quy tr\u00ecnh gia c\u00f4ng \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p><ul class=\"wp-block-list\"><li><strong>C\u1eaft<\/strong>:Th\u00e9p S2 \u0111\u01b0\u1ee3c c\u1eaft b\u1eb1ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n nh\u01b0 c\u1eaft b\u1eb1ng c\u01b0a ho\u1eb7c gia c\u00f4ng CNC.<\/li>\n\n<li><strong>X\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/strong>:C\u00f3 th\u1ec3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p m\u00e0i, \u0111\u00e1nh b\u00f3ng ho\u1eb7c c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd b\u1ec1 m\u1eb7t kh\u00e1c \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c l\u1edbp ho\u00e0n thi\u1ec7n mong mu\u1ed1n, c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n.<\/li><\/ul><p>M\u1ed7i b\u01b0\u1edbc trong quy tr\u00ecnh ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a th\u00e9p cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu t\u00e1c \u0111\u1ed9ng m\u1ea1nh v\u00e0 kh\u00f3 kh\u0103n.<\/p><h2 class=\"wp-block-heading\">C\u1ea5p th\u00e9p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng S2<\/h2><p>Sau \u0111\u00e2y l\u00e0 c\u00e1c lo\u1ea1i th\u00e9p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n \u0111\u00fang cho th\u00e9p S2, t\u1ea5t c\u1ea3 \u0111\u1ec1u theo ti\u00eau chu\u1ea9n c\u1ee7a Hoa K\u1ef3. C\u00e1c lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 \u0111\u1eb7c t\u00ednh v\u00e0 \u0111\u1eb7c t\u00ednh hi\u1ec7u su\u1ea5t t\u01b0\u01a1ng t\u1ef1 nh\u01b0 th\u00e9p S2, cung c\u1ea5p c\u00e1c l\u1ef1a ch\u1ecdn thay th\u1ebf t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Ti\u00eau chu\u1ea9n ASTMA681<\/strong><\/td><td><strong>FED QQ-T-570<\/strong><\/td><td><strong>SAE J437<\/strong><\/td><td><strong>SAE J438<\/strong><\/td><td><strong>UNS T41902<\/strong><\/td><\/tr><tr><td>S2<\/td><td>S2<\/td><td>2<\/td><td>2<\/td><td>T41902<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Th\u00e9p S2 so v\u1edbi Chrome Vanadi<\/h2><p>V\u00ec th\u00e9p S2 v\u00e0 th\u00e9p Chrome Vanadi c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m t\u01b0\u01a1ng t\u1ef1 nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 b\u1ec1n cao, n\u00ean \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i so s\u00e1nh tr\u1ef1c ti\u1ebfp ch\u00fang \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh lo\u1ea1i n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc<\/h3><p>Th\u00e9p S2 c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon cao h\u01a1n (0,90-1,10%) v\u00e0 silicon (0,50-0,80%), l\u00e0m cho n\u00f3 c\u1ee9ng h\u01a1n v\u00e0 ch\u1ed1ng va \u0111\u1eadp t\u1ed1t h\u01a1n. Chrome Vanadi th\u01b0\u1eddng ch\u1ee9a 0,60-0,80% carbon, c\u00f9ng v\u1edbi crom v\u00e0 vanadi, gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng.<\/p><h3 class=\"wp-block-heading\">Hi\u1ec7u su\u1ea5t<\/h3><p>Th\u00e9p S2 v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n, trong khi Chrome Vanadi m\u1ea1nh h\u01a1n v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng t\u1ed5ng th\u1ec3. S2 t\u1ed1t h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu va \u0111\u1eadp m\u1ea1nh, trong khi Chrome Vanadi ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n trong c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7n c\u1ea1nh s\u1eafc h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n.<\/p><h3 class=\"wp-block-heading\">Gi\u00e1<\/h3><p>Th\u00e9p S2 c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng h\u01a1n th\u00e9p Chrome Vanadi, lo\u1ea1i th\u00e9p c\u00f3 th\u1ec3 \u0111\u1eaft h\u01a1n m\u1ed9t ch\u00fat do ch\u1ee9a c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim nh\u01b0 crom v\u00e0 vanadi.<\/p><h3 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng<\/h3><p>Th\u00e9p S2 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u00f4ng c\u1ee5 c\u00f3 t\u00e1c \u0111\u1ed9ng m\u1ea1nh nh\u01b0 \u0111\u1ee5c, \u0111\u1ee5c v\u00e0 b\u00faa. Chrome Vanadi th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u1edd l\u00ea, \u1ed5 c\u1eafm v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 c\u1ea7m tay kh\u00e1c c\u1ea7n ch\u1ecbu \u0111\u01b0\u1ee3c s\u1ef1 m\u00e0i m\u00f2n v\u00e0 duy tr\u00ec \u0111\u1ed9 s\u1eafc b\u00e9n.<\/p><p>T\u00f3m l\u1ea1i, h\u00e3y ch\u1ecdn S2 \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp, v\u00e0 Chrome Vanadi \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 gi\u1eef c\u1ea1nh.<\/p><h4 class=\"wp-block-heading\">Th\u00e9p S2 c\u00f3 t\u1ed1t h\u01a1n th\u00e9p CRV kh\u00f4ng?<\/h4><p>Th\u00e9p S2 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t h\u01a1n, trong khi CRV (Chrome Vanadi) c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 gi\u1eef c\u1ea1nh tuy\u1ec7t v\u1eddi, khi\u1ebfn th\u00e9p S2 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu \u1ee9ng su\u1ea5t cao v\u00e0 th\u00e9p CRV d\u00e0nh cho c\u00e1c c\u00f4ng c\u1ee5 \u0111\u00f2i h\u1ecfi \u0111\u1ed9 s\u1eafc b\u00e9n.<\/p><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng c\u1ee7a th\u00e9p c\u00f4ng c\u1ee5 l\u00e0m vi\u1ec7c ngu\u1ed9i ASTM S2<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 l\u00e0m vi\u1ec7c ngu\u1ed9i S2 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp v\u00e0 \u0111\u1ed9 b\u1ec1n tuy\u1ec7t v\u1eddi, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 c\u00e1c c\u00f4ng c\u1ee5 ph\u1ea3i ch\u1ecbu \u1ee9ng su\u1ea5t v\u00e0 va \u0111\u1eadp cao. Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a n\u00f3:<\/p><ul class=\"wp-block-list\"><li><strong>D\u1ee5ng c\u1ee5 n\u1eb7ng<\/strong>: B\u00faa, \u0111\u1ee5c, \u0111\u1ee5c, khu\u00f4n<\/li>\n\n<li><strong>Khai th\u00e1c v\u00e0 x\u00e2y d\u1ef1ng<\/strong>: M\u00e1y khoan \u0111\u00e1, d\u1ee5ng c\u1ee5 n\u00e9n, d\u1ee5ng c\u1ee5 t\u00e1c \u0111\u1ed9ng<\/li>\n\n<li><strong>\u00d4 t\u00f4<\/strong>: D\u1ee5ng c\u1ee5 c\u1eaft, khu\u00f4n d\u1eadp<\/li>\n\n<li><strong>Ch\u1ebf t\u1ea1o<\/strong>: D\u1ee5ng c\u1ee5 \u0111\u00fac khu\u00f4n, l\u01b0\u1ee1i c\u1eaft, d\u1ee5ng c\u1ee5 t\u1ea1o h\u00ecnh ngu\u1ed9i<\/li><\/ul><h2 class=\"wp-block-heading\">Nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p c\u00f4ng c\u1ee5 S2<\/h2><p>Th\u00e9p c\u00f4ng c\u1ee5 S2 l\u00e0 v\u1eadt li\u1ec7u b\u1ec1n, ch\u1ecbu va \u0111\u1eadp cao, ho\u00e0n h\u1ea3o cho c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 b\u00faa v\u00e0 \u0111\u1ee5c c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 va \u0111\u1eadp tuy\u1ec7t v\u1eddi.<\/p><p>T\u1ea1i SteelPRO Group, ch\u00fang t\u00f4i t\u1ef1 h\u00e0o cung c\u1ea5p Th\u00e9p c\u00f4ng c\u1ee5 S2 v\u1edbi \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1eb7c bi\u1ec7t. Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t ti\u00ean ti\u1ebfn c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai h\u00e0ng \u0111\u1ea7u, trong khi ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o \u0111\u1ed9 tinh khi\u1ebft cao v\u00e0 ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc mang l\u1ea1i cho th\u00e9p c\u00f4ng c\u1ee5 s2 c\u1ee7a ch\u00fang t\u00f4i m\u1ed9t l\u1ee3i th\u1ebf. Cho d\u00f9 b\u1ea1n c\u1ea7n h\u00ecnh d\u1ea1ng ti\u00eau chu\u1ea9n hay k\u00edch th\u01b0\u1edbc t\u00f9y ch\u1ec9nh, ch\u00fang t\u00f4i \u0111\u1ec1u cung c\u1ea5p th\u00e9p S2 \u0111\u00e1ng tin c\u1eady, hi\u1ec7u su\u1ea5t cao ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u ch\u00ednh x\u00e1c c\u1ee7a b\u1ea1n.<br><\/p>","protected":false},"excerpt":{"rendered":"<p>Welcome to the S2 steel guide! If you&#8217;re looking for a tool steel with excellent impact resistance, S2 steel is [&hellip;]<\/p>","protected":false},"author":1,"featured_media":19868,"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-19884","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\/19884","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=19884"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/19884\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/19868"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=19884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=19884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=19884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}