{"id":20577,"date":"2025-02-10T04:29:00","date_gmt":"2025-02-09T20:29:00","guid":{"rendered":"https:\/\/steelprogroup.com\/?p=20577"},"modified":"2025-02-18T11:11:27","modified_gmt":"2025-02-18T03:11:27","slug":"hsla-2","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/automotive-steel\/hsla\/","title":{"rendered":"T\u1ed5ng quan v\u1ec1 th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao: C\u1ea5p \u0111\u1ed9, t\u00ednh ch\u1ea5t v\u00e0 c\u00f4ng d\u1ee5ng"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao (HSLA) \u0111\u00e3 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u mang t\u00ednh c\u00e1ch m\u1ea1ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i. V\u1edbi t\u1ef7 l\u1ec7 s\u1ee9c b\u1ec1n tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1ed9 b\u1ec1n \u0111\u1eb7c bi\u1ec7t v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, th\u00e9p HSLA \u0111ang d\u1ea7n thay th\u1ebf th\u00e9p cacbon truy\u1ec1n th\u1ed1ng trong nhi\u1ec1u l\u0129nh v\u1ef1c.&nbsp;<\/p><p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111i s\u00e2u v\u00e0o th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u00e1c lo\u1ea1i th\u00e9p kh\u00e1c nhau, quy tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 l\u00fd do t\u1ea1i sao l\u1ef1a ch\u1ecdn th\u00e9p HSLA c\u1ee7a SteelPro Group c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u00e1c d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao (HSLA) l\u00e0 g\u00ec?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao (HSLA) l\u00e0 lo\u1ea1i th\u00e9p h\u1ee3p kim c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n th\u00e9p cacbon th\u00f4ng th\u01b0\u1eddng. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00e1c, HSLA \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc ch\u1ee9 kh\u00f4ng ph\u1ea3i th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc. V\u1edbi h\u00e0m l\u01b0\u1ee3ng cacbon t\u1eeb 0,05% \u0111\u1ebfn 0,25%, n\u00f3 duy tr\u00ec c\u1ea3 kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh v\u00e0 kh\u1ea3 n\u0103ng h\u00e0n.<\/p><p class=\"wp-block-paragraph\">M\u1ed9t l\u01b0\u1ee3ng nh\u1ecf c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim, bao g\u1ed3m vanadi, niobi v\u00e0 titan, gi\u00fap th\u00e9p HSLA b\u1ec1n h\u01a1n b\u1eb1ng c\u00e1ch tinh ch\u1ec9nh c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a n\u00f3. K\u1ebft qu\u1ea3 l\u00e0, n\u00f3 cung c\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 ch\u1ecbu k\u00e9o t\u1eeb 250 \u0111\u1ebfn 590 MPa (36.000 \u0111\u1ebfn 86.000 psi). S\u1ef1 k\u1ebft h\u1ee3p c\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y l\u00e0m cho th\u00e9p HSLA tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u nh\u01b0 khung xe t\u1ea3i, c\u1ea7n c\u1ea9u v\u00e0 toa xe l\u1eeda.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t ch\u00ednh c\u1ee7a th\u00e9p HSLA<\/h2><ul class=\"wp-block-list\"><li><strong>\u0110\u1ed9 b\u1ec1n cao v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng th\u1ea5p<\/strong>: \u0110\u1ea1t \u0111\u01b0\u1ee3c <strong>50% c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n<\/strong> h\u01a1n th\u00e9p cacbon trong khi v\u1eabn gi\u1ea3m \u0111\u01b0\u1ee3c tr\u1ecdng l\u01b0\u1ee3ng.<\/li>\n\n<li><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i<\/strong>:C\u00e1c nguy\u00ean t\u1ed1 nh\u01b0 \u0111\u1ed3ng, crom v\u00e0 niken c\u00f3 t\u00e1c d\u1ee5ng b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i qu\u00e1 tr\u00ecnh oxy h\u00f3a.<\/li>\n\n<li><strong>Kh\u1ea3 n\u0103ng h\u00e0n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n<\/strong>: Kh\u00f4ng gi\u1ed1ng nh\u01b0 th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao truy\u1ec1n th\u1ed1ng, th\u00e9p HSLA duy tr\u00ec <strong>ch\u1ebf t\u1ea1o d\u1ec5 d\u00e0ng<\/strong> c\u1ee7a c\u1ea3i.<\/li>\n\n<li><strong>\u0110\u1ed9 d\u1ebbo dai v\u00e0 \u0111\u1ed9 b\u1ec1n cao<\/strong>: Ch\u1ecbu \u0111\u01b0\u1ee3c <strong>l\u1ef1c t\u00e1c \u0111\u1ed9ng m\u1ea1nh<\/strong> v\u00e0 nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t m\u00e0 kh\u00f4ng b\u1ecb n\u1ee9t.<\/li>\n\n<li><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed<\/strong>: Gi\u1ea3m chi ph\u00ed s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u v\u00e0 v\u1eadn chuy\u1ec3n do <strong>tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 h\u01a1n<\/strong>.<\/li><\/ul><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i th\u00e9p HSLA th\u00f4ng d\u1ee5ng v\u00e0 c\u00f4ng d\u1ee5ng c\u1ee7a ch\u00fang<\/h2><h3 class=\"wp-block-heading\">Th\u00e9p ch\u1ecbu th\u1eddi ti\u1ebft (COR-TEN\u00ae)<\/h3><ul class=\"wp-block-list\"><li><strong>\u1ee8ng d\u1ee5ng<\/strong>: c\u1ea7u, x\u00e2y d\u1ef1ng v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh ngo\u00e0i tr\u1eddi.<\/li><\/ul><p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n trong kh\u00ed quy\u1ec3n \u0111\u1eb7c bi\u1ec7t c\u1ee7a lo\u1ea1i th\u00e9p n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb kh\u1ea3 n\u0103ng t\u1ea1o l\u1edbp g\u1ec9 b\u1ea3o v\u1ec7 \u1ed5n \u0111\u1ecbnh theo th\u1eddi gian. \u0110\u1eb7c t\u00ednh n\u00e0y lo\u1ea1i b\u1ecf nhu c\u1ea7u s\u01a1n ho\u1eb7c c\u00e1c l\u1edbp ph\u1ee7 ch\u1ed1ng \u0103n m\u00f2n kh\u00e1c, gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a k\u1ebft c\u1ea5u l\u00e2u d\u00e0i.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p h\u1ee3p kim vi m\u00f4<\/h3><ul class=\"wp-block-list\"><li><strong>\u1ee8ng d\u1ee5ng<\/strong>: khung \u00f4 t\u00f4 v\u00e0 b\u00ecnh ch\u1ecbu \u00e1p su\u1ea5t.<\/li><\/ul><p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch th\u00eam m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf c\u00e1c nguy\u00ean t\u1ed1 nh\u01b0 vanadi v\u00e0 niobi, th\u00e9p h\u1ee3p kim si\u00eau nh\u1ecf \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai cao trong khi v\u1eabn gi\u1eef h\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u1ea5u tr\u00fac \u00f4 t\u00f4 v\u00e0 thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo v\u00e0 hi\u1ec7u su\u1ea5t nh\u1eb9.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p HSLA hai pha<\/h3><ul class=\"wp-block-list\"><li><strong>\u1ee8ng d\u1ee5ng<\/strong>: c\u1ea5u tr\u00fac ch\u1ed1ng va ch\u1ea1m \u00f4 t\u00f4.<\/li><\/ul><p class=\"wp-block-paragraph\"><a href=\"https:\/\/steelprogroup.com\/vi\/automotive-steel\/dual-phase\/\">Th\u00e9p hai pha<\/a> c\u00f3 c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a ferit m\u1ec1m v\u00e0 martensite c\u1ee9ng, cho ph\u00e9p h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng \u0111\u00e1ng k\u1ec3 trong qu\u00e1 tr\u00ecnh va ch\u1ea1m. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c khu v\u1ef1c va ch\u1ea1m c\u1ee7a xe c\u1ed9 v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n quan tr\u1ecdng kh\u00e1c v\u1ec1 an to\u00e0n.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p HSLA Ferrite H\u00ecnh \u1ed0ng<\/h3><ul class=\"wp-block-list\"><li><strong>\u1ee8ng d\u1ee5ng<\/strong>: \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn d\u1ea7u v\u00e0 \u0111\u00f3ng t\u00e0u.<\/li><\/ul><p class=\"wp-block-paragraph\">C\u1ea5u tr\u00fac vi m\u00f4 d\u1ea1ng kim m\u1ecbn c\u1ee7a th\u00e9p HSLA ferrite h\u00ecnh kim \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t lan truy\u1ec1n \u0111\u1eb7c bi\u1ec7t. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y l\u00e0m cho n\u00f3 c\u1ef1c k\u1ef3 \u0111\u00e1ng tin c\u1eady cho c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ebfp x\u00fac v\u1edbi \u00e1p su\u1ea5t cao v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh h\u00e0ng h\u1ea3i.<\/p><h2 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>Ph\u1ea1m vi \u0111i\u1ec3n h\u00ecnh (%)<\/strong><\/td><\/tr><tr><td>Cacbon (C)<\/td><td>0,05\u20130,25<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0,50\u20131,65<\/td><\/tr><tr><td>Vanadi (V)<\/td><td>0,01\u20130,10<\/td><\/tr><tr><td>Niobi (Nb)<\/td><td>0,02\u20130,10<\/td><\/tr><tr><td>Titan (Ti)<\/td><td>0,01\u20130,05<\/td><\/tr><tr><td>\u0110\u1ed3ng (Cu)<\/td><td>0,20\u20130,50<\/td><\/tr><tr><td>Crom (Cr)<\/td><td>0,30\u20130,50<\/td><\/tr><tr><td>Niken (Ni)<\/td><td>0,10\u20130,40<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">Vai tr\u00f2 c\u1ee7a t\u1eebng y\u1ebfu t\u1ed1<\/h3><ul class=\"wp-block-list\"><li><strong>Cacbon (C)<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">H\u00e0m l\u01b0\u1ee3ng carbon \u0111\u01b0\u1ee3c gi\u1eef \u1edf m\u1ee9c th\u1ea5p \u0111\u1ec3 duy tr\u00ec kh\u1ea3 n\u0103ng h\u00e0n v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh trong khi v\u1eabn cung c\u1ea5p \u0111\u1ee7 \u0111\u1ed9 b\u1ec1n. S\u1ef1 c\u00e2n b\u1eb1ng n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng th\u00e9p v\u1eabn d\u1ec5 \u0111\u1ecbnh h\u00ecnh m\u00e0 kh\u00f4ng l\u00e0m m\u1ea5t \u0111i c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a n\u00f3.<\/p><ul class=\"wp-block-list\"><li><strong>Mangan (Mn)<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">Mangan g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng t\u00f4i luy\u1ec7n. N\u00f3 c\u0169ng gi\u00fap tinh ch\u1ec9nh c\u1ea5u tr\u00fac vi m\u00f4, gi\u00fap t\u0103ng c\u01b0\u1eddng t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai c\u1ee7a th\u00e9p.<\/p><ul class=\"wp-block-list\"><li><strong>Vanadi (V), Niobi (Nb) v\u00e0 Titan (Ti)<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim vi m\u00f4 n\u00e0y c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u1ee7a th\u00e9p th\u00f4ng qua qu\u00e1 tr\u00ecnh t\u00f4i k\u1ebft t\u1ee7a v\u00e0 tinh ch\u1ebf h\u1ea1t. Vanadi v\u00e0 niobi c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n k\u00e9o, trong khi titan t\u0103ng kh\u1ea3 n\u0103ng h\u00e0n v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng g\u00e3y.<\/p><ul class=\"wp-block-list\"><li><strong>\u0110\u1ed3ng (Cu), Crom (Cr) v\u00e0 Niken (Ni)<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">\u0110\u1ed3ng c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, gi\u00fap th\u00e9p b\u1ec1n h\u01a1n trong m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi v\u00e0 bi\u1ec3n. Crom v\u00e0 niken t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/p><ul class=\"wp-block-list\"><li><strong>Zirconium (Zr), Calcium (Ca) v\u00e0 c\u00e1c nguy\u00ean t\u1ed1 \u0111\u1ea5t hi\u1ebfm<\/strong><\/li><\/ul><p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean t\u1ed1 vi l\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m so\u00e1t h\u00ecnh d\u1ea1ng v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 c\u1ee7a t\u1ea1p ch\u1ea5t sulfide. B\u1eb1ng c\u00e1ch bi\u1ebfn \u0111\u1ed5i sulfide, ch\u00fang c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh c\u1ee7a th\u00e9p, gi\u00fap d\u1ec5 d\u00e0ng x\u1eed l\u00fd v\u00e0 \u0111\u1ecbnh h\u00ecnh th\u00e0nh c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ee9c t\u1ea1p.<\/p><h2 class=\"wp-block-heading\">C\u1ea5p th\u00e9p HSLA v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>C\u1ea5p<\/strong><\/td><td><strong>Gi\u1edbi h\u1ea1n ch\u1ea3y (MPa\/ksi)<\/strong><\/td><td><strong>\u0110\u1ed9 b\u1ec1n k\u00e9o (MPa\/ksi)<\/strong><\/td><td><strong>\u1ee8ng d\u1ee5ng<\/strong><\/td><td><strong>Ghi ch\u00fa<\/strong><\/td><\/tr><tr><td>A36<\/td><td>\u2265250 \/ 36<\/td><td>\u2265400 \/ 58<\/td><td>X\u00e2y d\u1ef1ng n\u00f3i chung, bao g\u1ed3m nh\u00e0 c\u1eeda v\u00e0 c\u1ea7u c\u1ed1ng.<\/td><td>Th\u00e9p m\u1ec1m th\u00f4ng th\u01b0\u1eddng.<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/structural-steel\/a572\/\">A572<\/a><\/td><td>290\u2013450 \/ 42\u201365<\/td><td>415\u2013485 \/ 60\u201370<\/td><td>X\u00e2y d\u1ef1ng c\u1ea7u, khung t\u00f2a nh\u00e0 v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n k\u1ebft c\u1ea5u.<\/td><td>Bao g\u1ed3m c\u00e1c l\u1edbp 42, 50, 55, v.v.<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/weathering-steel\/a588\/\">A588<\/a><\/td><td>\u2265345 \/ 50<\/td><td>\u2265485 \/ 70<\/td><td>C\u00e1c c\u00f4ng tr\u00ecnh ngo\u00e0i tr\u1eddi nh\u01b0 c\u1ea7u v\u00e0 m\u1eb7t ti\u1ec1n.<\/td><td>&#8211;<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/weathering-steel\/a606\/\">A606<\/a><\/td><td>\u2265345 \/ 50<\/td><td>\u2265485 \/ 70<\/td><td>M\u00e1i nh\u00e0, v\u00e1ch ng\u0103n v\u00e0 t\u1ea5m \u1ed1p t\u01b0\u1eddng.<\/td><td>&#8211;<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/bridge-steel\/a709\/\">A709<\/a><\/td><td>250\u2013485 \/ 36\u201370<\/td><td>400\u2013690 \/ 58\u2013100<\/td><td>M\u1eb7t c\u1ea7u, d\u1ea7m c\u1ea7u v\u00e0 c\u00e1c k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c.<\/td><td>Bao g\u1ed3m 50W v\u00e0 HPS 70W.<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/high-strength-structural-steel\/a514\/\">A514<\/a><\/td><td>\u2265690 \/ 100<\/td><td>\u2265760 \/ 110<\/td><td>Thi\u1ebft b\u1ecb x\u00e2y d\u1ef1ng v\u00e0 khai th\u00e1c n\u1eb7ng.<\/td><td>C\u00e1c m\u1ee9c \u0111\u1ed9 c\u1ee9ng kh\u00e1c nhau.<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/high-strength-structural-steel\/s355\/\">S355<\/a><\/td><td>355 \/ 51.5<\/td><td>470\u2013630 \/ 68\u201391<\/td><td>Khung t\u00f2a nh\u00e0, c\u1ea7u v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh ngo\u00e0i kh\u01a1i c\u1ee7a Ch\u00e2u \u00c2u.<\/td><td>Bao g\u1ed3m S355J2, S355K2, v.v.<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/high-strength-structural-steel\/s500\/\">S500<\/a><\/td><td>500 \/ 72.5<\/td><td>590\u2013700 \/ 85,5\u2013101,5<\/td><td>C\u00e1c th\u00e0nh ph\u1ea7n k\u1ebft c\u1ea5u c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/td><td>&#8211;<\/td><\/tr><tr><td>M270<\/td><td>250\u2013485 \/ 36\u201370<\/td><td>400\u2013690 \/ 58\u2013100<\/td><td>X\u00e2y d\u1ef1ng c\u1ea7u theo h\u01b0\u1edbng d\u1eabn c\u1ee7a AASHTO.<\/td><td>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn theo ti\u00eau chu\u1ea9n A709 sp<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Quy tr\u00ecnh s\u1ea3n xu\u1ea5t th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao<\/h2><p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn c\u1ee7a SteelPro Group \u0111\u1eb7t ra ti\u00eau chu\u1ea9n cao cho vi\u1ec7c s\u1ea3n xu\u1ea5t th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao (HSLA). K\u1ebft h\u1ee3p nhi\u1ec1u n\u0103m kinh nghi\u1ec7m v\u1edbi c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o t\u1eebng b\u01b0\u1edbc trong quy tr\u00ecnh \u0111\u1ec1u mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c, t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i.<\/p><h3 class=\"wp-block-heading\">\u0110\u00fac li\u00ean t\u1ee5c<\/h3><p class=\"wp-block-paragraph\">Th\u00e9p n\u00f3ng ch\u1ea3y \u0111\u01b0\u1ee3c \u0111\u00fac th\u00e0nh t\u1ea5m ho\u1eb7c ph\u00f4i b\u1eb1ng quy tr\u00ecnh \u0111\u00fac li\u00ean t\u1ee5c ti\u00ean ti\u1ebfn c\u1ee7a ch\u00fang t\u00f4i. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc \u0111\u1ed3ng nh\u1ea5t, gi\u1ea3m t\u1ea1p ch\u1ea5t v\u00e0 c\u01a1 s\u1edf v\u1eadt li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ec3 x\u1eed l\u00fd ti\u1ebfp theo.<\/p><h3 class=\"wp-block-heading\">X\u1eed l\u00fd ki\u1ec3m so\u00e1t nhi\u1ec7t c\u01a1 (TMCP)<\/h3><p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p TMCP c\u1ee7a ch\u00fang t\u00f4i s\u1eed d\u1ee5ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 bi\u1ebfn d\u1ea1ng trong qu\u00e1 tr\u00ecnh c\u00e1n. B\u1eb1ng c\u00e1ch t\u1ea1o ra c\u1ea5u tr\u00fac vi m\u00f4 h\u1ea1t m\u1ecbn, ch\u00fang t\u00f4i \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u1eb7c bi\u1ec7t \u0111\u1ed3ng th\u1eddi gi\u1ea3m nhu c\u1ea7u x\u1eed l\u00fd nhi\u1ec7t b\u1ed5 sung.<\/p><h3 class=\"wp-block-heading\">L\u01b0\u1ee3ng m\u01b0a t\u0103ng c\u01b0\u1eddng:<\/h3><p class=\"wp-block-paragraph\">Ch\u00fang t\u00f4i k\u1ebft h\u1ee3p vanadi, niobi v\u00e0 titan \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c ch\u1ea5t k\u1ebft t\u1ee7a m\u1ecbn, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai c\u1ee7a th\u00e9p m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ebbo. C\u00e1c k\u1ef9 thu\u1eadt h\u1ee3p kim \u0111\u1ed9c quy\u1ec1n n\u00e0y cho ph\u00e9p th\u00e9p HSLA c\u1ee7a ch\u00fang t\u00f4i v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 c\u1ea3 kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh v\u00e0 \u0111\u1ed9 b\u1ec1n.<\/p><h3 class=\"wp-block-heading\">L\u00e0m m\u00e1t c\u00f3 ki\u1ec3m so\u00e1t v\u00e0 l\u00e0m m\u00e1t t\u0103ng t\u1ed1c (ACC)<\/h3><p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t c\u1ea3i ti\u1ebfn, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o c\u00e1c chuy\u1ec3n \u0111\u1ed5i vi c\u1ea5u tr\u00fac nh\u1ea5t qu\u00e1n gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu \u1ee9ng su\u1ea5t. Giai \u0111o\u1ea1n n\u00e0y t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 tin c\u1eady c\u1ee7a th\u00e9p cho c\u00e1c \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u.<\/p><h3 class=\"wp-block-heading\">C\u00e1n tr\u1ef1c ti\u1ebfp v\u00e0 t\u1ea1o h\u00ecnh cu\u1ed1i c\u00f9ng<\/h3><p class=\"wp-block-paragraph\">Quy tr\u00ecnh c\u00e1n tr\u1ef1c ti\u1ebfp c\u1ee7a ch\u00fang t\u00f4i lo\u1ea1i b\u1ecf c\u00e1c b\u01b0\u1edbc gia nhi\u1ec7t l\u1ea1i kh\u00f4ng c\u1ea7n thi\u1ebft, \u0111\u1ea3m b\u1ea3o c\u1ea5u tr\u00fac vi m\u00f4 \u0111\u1ed3ng nh\u1ea5t v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc nh\u1ea5t qu\u00e1n c\u1ee7a th\u00e9p. \u0110i\u1ec1u n\u00e0y gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 n\u00e2ng cao hi\u1ec7u qu\u1ea3 cho kh\u00e1ch h\u00e0ng c\u1ee7a ch\u00fang t\u00f4i.<\/p><h3 class=\"wp-block-heading\">K\u1ef9 thu\u1eadt h\u00e0n n\u00e2ng cao (n\u1ebfu c\u00f3)<\/h3><p class=\"wp-block-paragraph\">SteelPro Group s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u00e0n chuy\u00ean d\u1ee5ng gi\u00fap gi\u1eef nguy\u00ean \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai cao c\u1ee7a th\u00e9p. C\u00e1c k\u1ef9 thu\u1eadt ti\u00ean ti\u1ebfn n\u00e0y c\u1ee7ng c\u1ed1 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u00e1c khu v\u1ef1c h\u00e0n, \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 l\u00e2u d\u00e0i v\u00e0 hi\u1ec7u su\u1ea5t cao.<\/p><h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2><h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p cacbon v\u00e0 th\u00e9p HSLA l\u00e0 g\u00ec?<\/h3><p class=\"wp-block-paragraph\">Th\u00e9p HSLA \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u1ee9ng h\u01a1n, nh\u1eb9 h\u01a1n v\u00e0 ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n so v\u1edbi th\u00e9p carbon truy\u1ec1n th\u1ed1ng.<\/p><p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim, gi\u00fap tinh ch\u1ec9nh c\u1ea5u tr\u00fac h\u1ea1t v\u00e0 t\u0103ng c\u01b0\u1eddng c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc. Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p cacbon d\u1ef1a v\u00e0o h\u00e0m l\u01b0\u1ee3ng cacbon cao h\u01a1n \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n, th\u01b0\u1eddng l\u00e0m gi\u1ea3m \u0111\u1ed9 d\u1ebbo v\u00e0 kh\u1ea3 n\u0103ng h\u00e0n. Do \u0111\u00f3, th\u00e9p HSLA mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi t\u1ef7 l\u1ec7 \u0111\u1ed9 b\u1ec1n tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u1ed9 b\u1ec1n m\u00f4i tr\u01b0\u1eddng.<\/p><h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa th\u00e9p k\u1ebft c\u1ea5u v\u00e0 th\u00e9p HSLA l\u00e0 g\u00ec?<\/h3><p class=\"wp-block-paragraph\">Th\u00e9p HSLA l\u00e0 lo\u1ea1i th\u00e9p k\u1ebft c\u1ea5u c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo dai \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng th\u00f4ng qua h\u1ee3p kim, trong khi th\u00e9p k\u1ebft c\u1ea5u ti\u00eau chu\u1ea9n ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a n\u00f3.<\/p><p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng l\u01b0\u1ee3ng h\u1ee3p kim \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t, th\u00e9p HSLA \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 c\u01b0\u1eddng \u0111\u1ed9 tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. C\u00e1c lo\u1ea1i th\u00e9p k\u1ebft c\u1ea5u ti\u00eau chu\u1ea9n th\u01b0\u1eddng d\u1ef1a v\u00e0o th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc \u0111\u01a1n gi\u1ea3n h\u01a1n v\u00e0 c\u00f3 th\u1ec3 thi\u1ebfu c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc ti\u00ean ti\u1ebfn v\u00e0 \u0111\u1ed9 b\u1ec1n m\u00f4i tr\u01b0\u1eddng c\u1ee7a th\u00e9p HSLA.<\/p><h2 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p th\u00e9p HSLA t\u1ed1t nh\u1ea5t t\u1eeb SteelPro Group<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao (HSLA) c\u1ee7a SteelPro Group mang l\u1ea1i nh\u1eefng l\u1ee3i \u00edch v\u1ec1 hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt chi ti\u1ebft v\u00e0 k\u1ebft qu\u1ea3 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh:<\/p><ul class=\"wp-block-list\"><li><strong>Ti\u1ebft ki\u1ec7m chi ph\u00ed th\u00f4ng qua hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u:<\/strong> Th\u00e9p HSLA c\u1ee7a ch\u00fang t\u00f4i nh\u1eb9 h\u01a1n 20\u201330% so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p cacbon t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u00f3 c\u00f9ng m\u1ee9c \u0111\u1ed9 b\u1ec1n, gi\u00fap gi\u1ea3m chi ph\u00ed v\u1eadt li\u1ec7u v\u00e0 chi ph\u00ed v\u1eadn chuy\u1ec3n.<\/li>\n\n<li><strong>Hi\u1ec7u su\u1ea5t c\u1ea5u tr\u00fac v\u01b0\u1ee3t tr\u1ed9i:<\/strong> V\u1edbi gi\u1edbi h\u1ea1n ch\u1ea3y v\u01b0\u1ee3t qu\u00e1 345 MPa (50 ksi) v\u00e0 gi\u1edbi h\u1ea1n k\u00e9o l\u00ean t\u1edbi 485 MPa (70 ksi), th\u00e9p c\u1ee7a ch\u00fang t\u00f4i lu\u00f4n \u0111\u00e1p \u1ee9ng v\u00e0 v\u01b0\u1ee3t qua c\u00e1c y\u00eau c\u1ea7u c\u1ee7a ng\u00e0nh.<\/li>\n\n<li><strong>Tu\u1ed5i th\u1ecd k\u00e9o d\u00e0i:<\/strong> Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n gi\u00fap gi\u1ea3m chu k\u1ef3 b\u1ea3o tr\u00ec v\u00e0 t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a k\u1ebft c\u1ea5u, ti\u1ebft ki\u1ec7m chi ph\u00ed b\u1ea3o tr\u00ec l\u00e2u d\u00e0i v\u00e0 b\u1ea3o to\u00e0n gi\u00e1 tr\u1ecb \u0111\u1ea7u t\u01b0.<\/li>\n\n<li><strong>Hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a:<\/strong> Kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u00ecnh v\u00e0 h\u00e0n tuy\u1ec7t v\u1eddi c\u1ee7a th\u00e9p c\u1ee7a ch\u00fang t\u00f4i gi\u00fap h\u1ee3p l\u00fd h\u00f3a quy tr\u00ecnh s\u1ea3n xu\u1ea5t, gi\u1ea3m th\u1eddi gian ch\u1ebf t\u1ea1o v\u00e0 gi\u00fap ho\u00e0n th\u00e0nh d\u1ef1 \u00e1n nhanh h\u01a1n.<\/li><\/ul><p class=\"wp-block-paragraph\">SteelPro Group kh\u00f4ng ch\u1ec9 cung c\u1ea5p th\u00e9p HSLA ch\u1ea5t l\u01b0\u1ee3ng h\u00e0ng \u0111\u1ea7u m\u00e0 c\u00f2n cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 b\u1ed5 sung \u0111\u1ea3m b\u1ea3o th\u00e0nh c\u00f4ng c\u1ee7a d\u1ef1 \u00e1n:<\/p><ul class=\"wp-block-list\"><li><strong>X\u1eed l\u00fd theo y\u00eau c\u1ea7u:<\/strong> D\u1ecbch v\u1ee5 c\u1eaft, \u0111\u1ecbnh h\u00ecnh v\u00e0 t\u1ea1o h\u00ecnh ch\u00ednh x\u00e1c \u0111\u1ea3m b\u1ea3o d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p ch\u00ednh x\u00e1c v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n.<\/li>\n\n<li><strong>X\u1eed l\u00fd b\u1ec1 m\u1eb7t:<\/strong> Ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 phun bi, ph\u1ee7 l\u1edbp b\u1ea3o v\u1ec7 v\u00e0 m\u1ea1 k\u1ebdm \u0111\u1ec3 t\u0103ng \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, \u0103n m\u00f2n c\u1ee7a th\u00e9p.<\/li>\n\n<li><strong>S\u1ea3n xu\u1ea5t c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao:<\/strong> V\u1edbi c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn v\u00e0 quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t, SteelPro Group \u0111\u1ea3m b\u1ea3o m\u1ecdi l\u00f4 h\u00e0ng \u0111\u1ec1u \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n cao nh\u1ea5t, mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady v\u00e0 nh\u1ea5t qu\u00e1n.<\/li><\/ul><p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p h\u1ee3p kim th\u1ea5p c\u01b0\u1eddng \u0111\u1ed9 cao (HSLA) \u0111\u00e3 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u mang t\u00ednh c\u00e1ch m\u1ea1ng trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i. V\u1edbi t\u1ef7 l\u1ec7 s\u1ee9c b\u1ec1n tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1ed9 b\u1ec1n \u0111\u1eb7c bi\u1ec7t, [\u2026]<\/p>","protected":false},"author":12,"featured_media":20567,"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":[4306],"tags":[],"class_list":["post-20577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-automotive-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20577","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\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/comments?post=20577"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/20577\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/20567"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=20577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=20577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=20577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}