{"id":11630,"date":"2024-10-15T11:03:00","date_gmt":"2024-10-15T03:03:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=11630"},"modified":"2024-11-21T11:16:46","modified_gmt":"2024-11-21T03:16:46","slug":"grade-434","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-434\/","title":{"rendered":"T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434, ch\u1ebf t\u1ea1o, \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m, h\u00ecnh d\u1ea1ng, \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 l\u00e0 v\u1eadt li\u1ec7u ferritic \u0111a n\u0103ng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, ch\u1ecbu nhi\u1ec7t v\u00e0 \u0111\u1ed9 b\u1ec1n v\u1eeba ph\u1ea3i, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t. Hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 r\u1ea5t tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong vi\u1ec7c ch\u1ed1ng l\u1ea1i t\u00e1c \u0111\u1ed9ng c\u1ee7a h\u00f3a ch\u1ea5t ph\u00e1 b\u0103ng. Nh\u01b0ng n\u00f3 so s\u00e1nh nh\u01b0 th\u1ebf n\u00e0o v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c?&nbsp;<\/p><p class=\"wp-block-paragraph\">Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c \u0111\u1eb7c t\u00ednh, ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf t\u1ea1o, \u01b0u \u0111i\u1ec3m, \u1ee9ng d\u1ee5ng c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434 v\u00e0 so s\u00e1nh n\u00f3 v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 316 v\u00e0 430. Khi k\u1ebft th\u00fac, b\u1ea1n s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c c\u00e1i nh\u00ecn s\u00e2u s\u1eafc v\u1ec1 vi\u1ec7c li\u1ec7u 434 c\u00f3 ph\u1ea3i l\u00e0 v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n hay kh\u00f4ng.&nbsp;<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 434 l\u00e0 g\u00ec<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 l\u00e0 th\u00e9p ferritic, kh\u00f4ng th\u1ec3 l\u00e0m c\u1ee9ng v\u1edbi s\u1eaft 83%, crom 16-18% v\u00e0 molypden 1% \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng clorua. N\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 815\u00b0C v\u00e0 tu\u00e2n th\u1ee7 ASTM A240. N\u00f3 c\u00f3 c\u1ea5u tr\u00fac tinh th\u1ec3 BCC t\u1eeb t\u00ednh. Kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a v\u00e0 \u0103n m\u00f2n \u1ee9ng su\u1ea5t c\u1ee7a n\u00f3 l\u00e0m cho n\u00f3 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng trong \u00f4 t\u00f4 v\u00e0 nh\u00e0 b\u1ebfp, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 b\u1ec1n trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p><h2 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 l\u00e0 v\u1eadt li\u1ec7u ferritic, kh\u00f4ng th\u1ec3 l\u00e0m c\u1ee9ng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t t\u1ed1t v\u00e0 \u0111\u1ed9 b\u1ec1n v\u1eeba ph\u1ea3i. C\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd, h\u00f3a h\u1ecdc v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a n\u00f3 l\u00e0m cho n\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 \u1ee9ng d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u01a1i c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a v\u00e0 \u0103n m\u00f2n \u1ee9ng su\u1ea5t.<\/p><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a 434<\/h3><p class=\"wp-block-paragraph\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3. C\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim ch\u00ednh bao g\u1ed3m s\u1eaft, crom v\u00e0 molypden, m\u1ed7i nguy\u00ean t\u1ed1 g\u00f3p ph\u1ea7n t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/p><p class=\"wp-block-paragraph\">Molypden l\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa th\u00e9p kh\u00f4ng g\u1ec9 434 v\u00e0 430. N\u00f3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng ti\u1ebfp x\u00fac v\u1edbi clorua v\u00e0 h\u00f3a ch\u1ea5t ch\u1ed1ng \u0111\u00f3ng b\u0103ng. Vi\u1ec7c b\u1ed5 sung silicon c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434, gi\u00fap \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Y\u1ebfu t\u1ed1<\/strong><\/td><td><strong>S\u1eaft (Fe)<\/strong><\/td><td><strong>Crom (Cr)<\/strong><\/td><td><strong>Molip\u0111en (Mo)<\/strong><\/td><td><strong>Cacbon (C)<\/strong><\/td><td><strong>Silic (Si)<\/strong><\/td><td><strong>Mangan (Mn)<\/strong><\/td><td><strong>Ph\u1ed1t pho (P)<\/strong><\/td><td><strong>L\u01b0u hu\u1ef3nh (S)<\/strong><\/td><\/tr><tr><td>Ph\u1ea1m vi<\/td><td>S\u1ef1 c\u00e2n b\u1eb1ng<\/td><td>16.0-18.0%<\/td><td>0.75-1.25%<\/td><td>\u22640,12%<\/td><td>\u22641,00%<\/td><td>\u22641,00%<\/td><td>\u22640,040%<\/td><td>\u22640,030%<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a 434<\/h3><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 \u0111\u1ed9 b\u1ec1n trung b\u00ecnh, \u0111\u1ed9 d\u1ebbo t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0103n m\u00f2n \u1ee9ng su\u1ea5t tuy\u1ec7t v\u1eddi. Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m v\u1eadt l\u00fd n\u00e0y l\u00e0m cho n\u00f3 l\u00fd t\u01b0\u1edfng cho nhi\u1ec1u m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng \u0111\u1ea7y th\u00e1ch th\u1ee9c.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>C\u1ee7a c\u1ea3i<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb m\u00e9t<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb \u0110\u1ebf qu\u1ed1c<\/strong><\/td><\/tr><tr><td>\u0110\u1ed9 b\u1ec1n k\u00e9o<\/td><td>415-585MPa<\/td><td>60-85 ksi<\/td><\/tr><tr><td>S\u1ee9c ch\u1ecbu l\u1ef1c<\/td><td>275MPa<\/td><td>40 kil\u00f4m\u00e9t<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng Vickers<\/td><td>160-200 HV<\/td><td>160-200 HV<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng Brinell<\/td><td>150-190 HB<\/td><td>150-190 HB<\/td><\/tr><tr><td>\u0110\u1ed9 c\u1ee9ng Rockwell<\/td><td>B75-B95<\/td><td>B75-B95<\/td><\/tr><tr><td>\u0110\u1ed9 gi\u00e3n d\u00e0i<\/td><td>20-30%<\/td><td>20-30%<\/td><\/tr><tr><td>M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i<\/td><td>200 GPa<\/td><td>29.000 kil\u00f4gam<\/td><\/tr><\/tbody><\/table><\/figure><p class=\"wp-block-paragraph\">(Nh\u1eefng gi\u00e1 tr\u1ecb n\u00e0y \u00e1p d\u1ee5ng cho th\u00e9p kh\u00f4ng g\u1ec9 434 \u1edf \u0111i\u1ec1u ki\u1ec7n \u1ee7, nh\u01b0ng gi\u00e1 tr\u1ecb th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o qu\u00e1 tr\u00ecnh x\u1eed l\u00fd v\u00e0 x\u1eed l\u00fd nhi\u1ec7t.)<\/p><h3 class=\"wp-block-heading\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a 434<\/h3><p class=\"wp-block-paragraph\">\u0110\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434 v\u1ec1 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd l\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a cao v\u00e0 kh\u1ea3 n\u0103ng duy tr\u00ec \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao. \u0110\u1ec3 bi\u1ebft c\u00e1c gi\u00e1 tr\u1ecb t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee5 th\u1ec3, vui l\u00f2ng tham kh\u1ea3o b\u1ea3ng b\u00ean d\u01b0\u1edbi.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>T\u00e0i s\u1ea3n<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb m\u00e9t<\/strong><\/td><td><strong>\u0110\u01a1n v\u1ecb \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>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td><td>1.480-1.530\u00b0C<\/td><td>2.700-2.785\u00b0F<\/td><\/tr><tr><td>\u0110\u1ed9 d\u1eabn nhi\u1ec7t<\/td><td>25 W\/m\u00b7K<\/td><td>173 BTU\u00b7in\/ft\u00b2\u00b7h\u00b7\u00b0F<\/td><\/tr><tr><td>\u0110i\u1ec7n tr\u1edf su\u1ea5t<\/td><td>0,60 \u00b5\u03a9\u00b7m<\/td><td>0,60 \u00b5\u03a9\u00b7m<\/td><\/tr><tr><td>Nhi\u1ec7t dung ri\u00eang<\/td><td>460 J\/kg\u00b7K<\/td><td>0,11 BTU\/lb\u00b7\u00b0F<\/td><\/tr><tr><td>H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t<\/td><td>10,4 \u00b5m\/m\u00b7\u00b0C<\/td><td>5,8 \u00b5in\/in\u00b7\u00b0F<\/td><\/tr><tr><td>T\u00ednh ch\u1ea5t t\u1eeb t\u00ednh<\/td><td>Ferritic, t\u1eeb t\u00ednh<\/td><td>Ferritic, t\u1eeb t\u00ednh<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">C\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng c\u1ee7a SS 434<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 c\u00e1c c\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng theo c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf kh\u00e1c nhau, \u0111\u1ea3m b\u1ea3o vi\u1ec7c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u1edf nhi\u1ec1u khu v\u1ef1c v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng li\u1ec7t k\u00ea c\u00e1c c\u1ea5p \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng theo c\u00e1c ti\u00eau chu\u1ea9n EN, JIS, GB v\u00e0 ASTM.<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Qu\u1ed1c gia<\/strong><\/td><td><strong>Ti\u00eau chu\u1ea9n<\/strong><\/td><td><strong>L\u1edbp t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/strong><\/td><\/tr><tr><td>Ch\u00e2u \u00c2u<\/td><td>VI<\/td><td>1.4113<\/td><\/tr><tr><td>Nh\u1eadt B\u1ea3n<\/td><td>Ti\u00eau chu\u1ea9n Nh\u1eadt B\u1ea3n<\/td><td>SUS434<\/td><\/tr><tr><td>Trung Qu\u1ed1c<\/td><td>Anh<\/td><td>10Cr17Th\u00e1ng<\/td><\/tr><tr><td>Hoa K\u1ef3<\/td><td>Ti\u00eau chu\u1ea9n ASTM<\/td><td>AISI 434<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Ch\u1ebf t\u1ea1o SS 434<\/h2><p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 434 bao g\u1ed3m m\u1ed9t s\u1ed1 b\u01b0\u1edbc ch\u00ednh:<\/p><ol class=\"wp-block-list\"><li><strong>Chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u<\/strong>: V\u1ec7 sinh v\u00e0 ki\u1ec3m tra \u0111\u1ec3 lo\u1ea1i b\u1ecf ch\u1ea5t b\u1ea9n v\u00e0 khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t.<\/li>\n\n<li><strong>H\u00ecnh th\u00e0nh v\u00e0 \u0111\u1ecbnh h\u00ecnh<\/strong>:<ul class=\"wp-block-list\"><li><strong>L\u00e0m vi\u1ec7c l\u1ea1nh<\/strong>:C\u00e1c quy tr\u00ecnh nh\u01b0 u\u1ed1n cong ho\u1eb7c c\u00e1n, sau \u0111\u00f3 \u1ee7 n\u1ebfu c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 gi\u00f2n.<\/li>\n\n<li><strong>L\u00e0m vi\u1ec7c n\u00f3ng<\/strong>: Th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 760\u00b0C \u0111\u1ebfn 980\u00b0C, sau \u0111\u00f3 l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed.<\/li><\/ul><\/li>\n\n<li><strong>C\u1eaft v\u00e0 gia c\u00f4ng<\/strong>:Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf t\u1ed1c \u0111\u1ed9 ch\u1eadm h\u01a1n do \u0111\u1ed9 b\u1ec1n c\u1ee7a v\u1eadt li\u1ec7u.<\/li>\n\n<li><strong>X\u1eed l\u00fd nhi\u1ec7t<\/strong>: L\u00e0m m\u1ec1m ho\u1eb7c gi\u1ea3m c\u0103ng th\u1eb3ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 l\u1ea5y l\u1ea1i \u0111\u1ed9 linh ho\u1ea1t v\u00e0 gi\u1ea3m c\u0103ng th\u1eb3ng b\u00ean trong.<\/li>\n\n<li><strong>R\u00e8n: <\/strong>H\u1ee3p kim c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c r\u00e8n \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 2000 \u2013 2100\u00b0F (1094 \u2013 1149\u00b0C) sau khi ng\u00e2m k\u1ef9. R\u00e8n \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00e0y gi\u00fap duy tr\u00ec c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u00e0 ng\u0103n ng\u1eeba s\u1ef1 ph\u00e1t tri\u1ec3n h\u1ea1t kh\u00f4ng c\u1ea7n thi\u1ebft, c\u00f3 th\u1ec3 l\u00e0m y\u1ebfu v\u1eadt li\u1ec7u.<\/li>\n\n<li><strong>H\u00e0n<\/strong>:C\u1ea7n ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a h\u1ea1t v\u00e0 n\u1ee9t, v\u1edbi l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u1ea7u v\u00e0o th\u1ea5p v\u00e0 c\u00f3 th\u1ec3 x\u1eed l\u00fd tr\u01b0\u1edbc\/sau khi h\u00e0n.<\/li><\/ol><p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o 434 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n trong qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o.<\/p><h2 class=\"wp-block-heading\">X\u1eed l\u00fd nhi\u1ec7t c\u1ee7a SS 434<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 tr\u1ea3i qua nhi\u1ec1u b\u01b0\u1edbc x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 duy tr\u00ec hi\u1ec7u su\u1ea5t trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u1eaft khe:<\/p><h3 class=\"wp-block-heading\"><strong>\u1ee6<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Nhi\u1ec7t \u0111\u1ed9<\/strong>: Qu\u00e1 tr\u00ecnh \u1ee7 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 t\u1eeb 760\u00b0C \u0111\u1ebfn 815\u00b0C (1400\u00b0F \u0111\u1ebfn 1500\u00b0F).<\/li>\n\n<li><strong>Qu\u00e1 tr\u00ecnh<\/strong>: Sau khi nung \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 quy \u0111\u1ecbnh, th\u00e9p \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed. \u0110i\u1ec1u n\u00e0y l\u00e0m m\u1ec1m v\u1eadt li\u1ec7u, gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong v\u00e0 ph\u1ee5c h\u1ed3i \u0111\u1ed9 d\u1ebbo b\u1ecb m\u1ea5t trong qu\u00e1 tr\u00ecnh gia c\u00f4ng ngu\u1ed9i.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>Gi\u1ea3m c\u0103ng th\u1eb3ng<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Nhi\u1ec7t \u0111\u1ed9<\/strong>: Gi\u1ea3m \u1ee9ng su\u1ea5t \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 kho\u1ea3ng 650\u00b0C (1200\u00b0F).<\/li>\n\n<li><strong>Qu\u00e1 tr\u00ecnh<\/strong>:Sau khi nung, th\u00e9p \u0111\u01b0\u1ee3c l\u00e0m ngu\u1ed9i t\u1eeb t\u1eeb \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t b\u00ean trong, gi\u1ea3m thi\u1ec3u nguy c\u01a1 n\u1ee9t ho\u1eb7c bi\u1ebfn d\u1ea1ng trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng sau n\u00e0y.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>L\u00e0m ngu\u1ed9i (n\u1ebfu c\u00f3)<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Nhi\u1ec7t \u0111\u1ed9<\/strong>:Khi s\u1eed d\u1ee5ng, t\u00f4i luy\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n so v\u1edbi \u1ee7.<\/li>\n\n<li><strong>Qu\u00e1 tr\u00ecnh<\/strong>: \u0110i\u1ec1u n\u00e0y \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n \u0111\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 434, nh\u01b0ng khi \u00e1p d\u1ee5ng, n\u00f3 l\u00e0m gi\u1ea3m th\u00eam \u1ee9ng su\u1ea5t t\u1eeb h\u00e0n ho\u1eb7c gia c\u00f4ng n\u00f3ng m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n t\u1ed5ng th\u1ec3 c\u1ee7a v\u1eadt li\u1ec7u. Sau khi t\u00f4i luy\u1ec7n, \u0111\u1ed9 c\u1ee9ng c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng HRC 25 \u0111\u1ebfn HRC 35.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>Tr\u00e1nh l\u00e0m c\u1ee9ng<\/strong><\/h3><ul class=\"wp-block-list\"><li><strong>Nhi\u1ec7t \u0111\u1ed9<\/strong>: Kh\u00f4ng \u00e1p d\u1ee5ng cho qu\u00e1 tr\u00ecnh l\u00e0m c\u1ee9ng.<\/li>\n\n<li><strong>Qu\u00e1 tr\u00ecnh<\/strong>:Do c\u1ea5u tr\u00fac ferritic, th\u00e9p kh\u00f4ng g\u1ec9 434 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng th\u00f4ng qua x\u1eed l\u00fd nhi\u1ec7t. Thay v\u00e0o \u0111\u00f3, \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 c\u1ee9ng \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n th\u00f4ng qua gia c\u00f4ng ngu\u1ed9i ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh th\u00e0nh ph\u1ea7n h\u1ee3p kim.<\/li><\/ul><p class=\"wp-block-paragraph\">Quy tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t c\u00f3 c\u1ea5u tr\u00fac n\u00e0y \u0111\u1ea3m b\u1ea3o th\u00e9p kh\u00f4ng g\u1ec9 434 duy tr\u00ec \u0111\u01b0\u1ee3c c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1i \u01b0u.<\/p><h2 class=\"wp-block-heading\">X\u1eed l\u00fd b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 434<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 th\u1ec3 c\u00f3 c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, do \u0111\u00f3, th\u01b0\u1eddng c\u1ea7n x\u1eed l\u00fd b\u1ec1 m\u1eb7t \u0111\u00fang c\u00e1ch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1i \u01b0u trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/p><ol class=\"wp-block-list\"><li><strong>th\u1ee5 \u0111\u1ed9ng h\u00f3a<\/strong>:Lo\u1ea1i b\u1ecf ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m b\u1ec1 m\u1eb7t v\u00e0 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n b\u1eb1ng c\u00e1ch h\u00ecnh th\u00e0nh l\u1edbp oxit b\u1ea3o v\u1ec7, r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng d\u1ec5 b\u1ecb \u0103n m\u00f2n.<\/li>\n\n<li><strong>\u0110\u00e1nh b\u00f3ng<\/strong>: C\u1ea3i thi\u1ec7n \u0111\u1ed9 m\u1ecbn v\u00e0 v\u1ebb ngo\u00e0i c\u1ee7a b\u1ec1 m\u1eb7t \u0111\u1ed3ng th\u1eddi gi\u1ea3m nguy c\u01a1 t\u00edch t\u1ee5 ch\u1ea5t b\u1ea9n, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng trong nh\u00e0 b\u1ebfp v\u00e0 h\u00e0ng h\u1ea3i.<\/li>\n\n<li><strong>M\u1ea1 \u0111i\u1ec7n<\/strong>: Ph\u1ee7 th\u00e9p b\u1eb1ng kim lo\u1ea1i nh\u01b0 niken ho\u1eb7c crom, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n\n<li><strong>Ng\u00e2m chua<\/strong>: Lo\u1ea1i b\u1ecf c\u1eb7n v\u00e0 t\u1ea1p ch\u1ea5t sau khi gia c\u00f4ng n\u00f3ng ho\u1eb7c h\u00e0n, gi\u00fap b\u1ec1 m\u1eb7t th\u00e9p s\u1ea1ch v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed5ng th\u1ec3 c\u1ee7a th\u00e9p.<\/li>\n\n<li><strong>Phun c\u00e1t<\/strong>:S\u1eed d\u1ee5ng c\u00e1c h\u1ea1t m\u00e0i m\u00f2n \u0111\u1ec3 l\u00e0m s\u1ea1ch v\u00e0 l\u00e0m m\u1ecbn b\u1ec1 m\u1eb7t, mang l\u1ea1i l\u1edbp ho\u00e0n thi\u1ec7n \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u00e1m d\u00ednh b\u1ec1 m\u1eb7t cho l\u1edbp ph\u1ee7.<\/li>\n\n<li><strong>\u1ee7 s\u00e1ng (BA)<\/strong>: L\u1edbp ho\u00e0n thi\u1ec7n m\u1ecbn m\u00e0ng, ph\u1ea3n chi\u1ebfu t\u1eeb qu\u00e1 tr\u00ecnh \u1ee7 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 ki\u1ec3m so\u00e1t, t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ea9m m\u1ef9 nh\u01b0 nh\u00e0 b\u1ebfp v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 ki\u1ebfn tr\u00fac.<\/li>\n\n<li><strong>Ho\u00e0n thi\u1ec7n 2D v\u00e0 2B:<\/strong> B\u1ec1 m\u1eb7t m\u1edd cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n duy tr\u00ec \u0111\u1ed9 b\u00f4i tr\u01a1n v\u00e0 k\u00e9o s\u00e2u.<\/li><\/ol><p class=\"wp-block-paragraph\">C\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd n\u00e0y c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 b\u1ec1n v\u00e0 v\u1ebb ngo\u00e0i c\u1ee7a b\u1ec1 m\u1eb7t. Ngo\u00e0i ra, SteelPRO Group c\u00f3 th\u1ec3 cung c\u1ea5p cho b\u1ea1n nhi\u1ec1u t\u00f9y ch\u1ecdn x\u1eed l\u00fd b\u1ec1 m\u1eb7t t\u00f9y ch\u1ec9nh h\u01a1n.<\/p><h2 class=\"wp-block-heading\">C\u00e1c h\u00ecnh d\u1ea1ng v\u00e0 d\u1ea1ng ph\u1ed5 bi\u1ebfn c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434<\/h2><p class=\"wp-block-paragraph\">T\u1ea1i SteelPro Group, ch\u00fang t\u00f4i cung c\u1ea5p nhi\u1ec1u h\u00ecnh d\u1ea1ng v\u00e0 d\u1ea1ng th\u00e9p kh\u00f4ng g\u1ec9 434 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhi\u1ec1u nhu c\u1ea7u c\u00f4ng nghi\u1ec7p v\u00e0 th\u01b0\u01a1ng m\u1ea1i kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng ph\u00e2n t\u00edch c\u00e1c h\u00ecnh d\u1ea1ng v\u00e0 d\u1ea1ng c\u00f3 s\u1eb5n th\u00f4ng qua c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i.<\/p><h3 class=\"wp-block-heading\"><strong>T\u1ea5m v\u00e0 T\u1ea5m<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: T\u1ea5m, t\u1edd.<br><strong>H\u00ecnh th\u1ee9c<\/strong>:T\u1ea5m c\u00e1n n\u00f3ng, t\u1ea5m c\u00e1n ngu\u1ed9i, t\u1ea5m \u0111\u00e1nh b\u00f3ng, t\u1ea5m ho\u00e0n thi\u1ec7n nh\u00e0 m\u00e1y, t\u1ea5m \u1ee7.<\/p><h3 class=\"wp-block-heading\"><strong>X\u00f4n xao<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: Cu\u1ed9n d\u00e2y r\u1ed9ng, cu\u1ed9n d\u00e2y khe.<br><strong>H\u00ecnh th\u1ee9c<\/strong>: Cu\u1ed9n c\u00e1n ngu\u1ed9i, cu\u1ed9n c\u00e1n n\u00f3ng, cu\u1ed9n \u1ee7, cu\u1ed9n ram, cu\u1ed9n ng\u00e2m chua.<\/p><h3 class=\"wp-block-heading\"><strong>\u1ed0ng v\u00e0 ph\u1ee5 ki\u1ec7n<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: \u1ed0ng li\u1ec1n m\u1ea1ch, \u1ed1ng h\u00e0n, ph\u1ee5 ki\u1ec7n (c\u1eaft, ch\u1eef T, \u1ed1ng thu).<br><strong>H\u00ecnh th\u1ee9c<\/strong>: \u1ed0ng \u0111\u00e1nh b\u00f3ng, \u1ed1ng ng\u00e2m chua, ph\u1ee5 ki\u1ec7n \u1ee7, ph\u1ee5 ki\u1ec7n h\u00e0n, ph\u1ee5 ki\u1ec7n ren.<\/p><h3 class=\"wp-block-heading\"><strong>K\u00eanh<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: K\u00eanh ch\u1eef U, k\u00eanh ch\u1eef C, k\u00eanh c\u00f3 m\u00f4i, k\u00eanh c\u00f3 khe.<br><strong>H\u00ecnh th\u1ee9c<\/strong>: K\u00eanh c\u00e1n n\u00f3ng, k\u00eanh t\u1ea1o h\u00ecnh ngu\u1ed9i, k\u00eanh m\u1ea1 k\u1ebdm, k\u00eanh c\u1eaft laser, k\u00eanh t\u1ea1o h\u00ecnh ch\u00ednh x\u00e1c.<\/p><h3 class=\"wp-block-heading\"><strong>G\u00f3c<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: G\u00f3c b\u1eb1ng nhau, g\u00f3c kh\u00f4ng b\u1eb1ng nhau.<br><strong>H\u00ecnh th\u1ee9c<\/strong>: G\u00f3c c\u00e1n n\u00f3ng, g\u00f3c c\u00e1n ngu\u1ed9i, g\u00f3c m\u1ea1 k\u1ebdm, g\u00f3c ng\u00e2m chua, g\u00f3c ho\u00e0n thi\u1ec7n b\u1eb1ng m\u00e1y.<\/p><h3 class=\"wp-block-heading\"><strong>D\u1ea7m<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: D\u1ea7m ch\u1eef I, d\u1ea7m ch\u1eef H, d\u1ea7m b\u1ea3n r\u1ed9ng.<br><strong>H\u00ecnh th\u1ee9c<\/strong>: D\u1ea7m c\u00e1n n\u00f3ng, d\u1ea7m h\u00e0n, d\u1ea7m c\u1eaft laser, d\u1ea7m m\u1ea1 k\u1ebdm, d\u1ea7m ho\u00e0n thi\u1ec7n t\u1ea1i nh\u00e0 m\u00e1y.<\/p><h3 class=\"wp-block-heading\"><strong>D\u00e2y \u0111i\u1ec7n<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: D\u00e2y tr\u00f2n, d\u00e2y d\u1eb9t, d\u00e2y xo\u1eafn.<br><strong>H\u00ecnh th\u1ee9c<\/strong>: D\u00e2y \u1ee7, d\u00e2y ram, d\u00e2y k\u00e9o ngu\u1ed9i, d\u00e2y ng\u00e2m chua, d\u00e2y m\u1ea1 k\u1ebdm.<\/p><h3 class=\"wp-block-heading\"><strong>Thanh<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: Thanh tr\u00f2n, thanh vu\u00f4ng, thanh ph\u1eb3ng, thanh l\u1ee5c gi\u00e1c.<br><strong>H\u00ecnh th\u1ee9c<\/strong>:Th\u1ecfi \u0111\u00e1nh b\u00f3ng, th\u1ecfi ng\u00e2m chua, th\u1ecfi \u1ee7, th\u1ecfi k\u00e9o ngu\u1ed9i, th\u1ecfi c\u1eaft ch\u00ednh x\u00e1c.<\/p><h3 class=\"wp-block-heading\"><strong>H\u1ed3 s\u01a1 t\u00f9y ch\u1ec9nh<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>H\u00ecnh d\u1ea1ng<\/strong>: C\u00e1c c\u1ea5u h\u00ecnh \u0111\u00f9n t\u00f9y ch\u1ec9nh, c\u00e1c c\u1ea5u h\u00ecnh c\u1eaft ch\u00ednh x\u00e1c.<br><strong>H\u00ecnh th\u1ee9c<\/strong>: Thanh \u0111\u00f9n, thanh c\u00e1n, thanh d\u1eadp.<\/p><p class=\"wp-block-paragraph\">SteelPro Group \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n cao nh\u1ea5t v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh, cung c\u1ea5p h\u00ecnh d\u1ea1ng v\u00e0 ki\u1ec3u d\u00e1ng ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p><h2 class=\"wp-block-heading\">\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u1ef1c k\u1ef3 c\u00f3 l\u1ee3i trong m\u00f4i tr\u01b0\u1eddng \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0111\u1ed9 b\u1ec1n v\u1eeba ph\u1ea3i. Ch\u00fang t\u00f4i \u0111\u00e3 li\u1ec7t k\u00ea m\u1ed9t s\u1ed1 l\u1ee3i \u00edch khi b\u1ea1n l\u1ef1a ch\u1ecdn n\u00f3. Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 t\u1ea5t c\u1ea3 c\u00e1c ch\u1ea5t kh\u00e1c, n\u00f3 c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh.<\/p><h3 class=\"wp-block-heading\">\u01afu \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434:<\/h3><ol class=\"wp-block-list\"><li><strong>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i<\/strong>:Nh\u1edd b\u1ed5 sung molypden, th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng clorua, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng ven bi\u1ec3n, h\u00e0ng h\u1ea3i ho\u1eb7c h\u00f3a ch\u1ea5t.<\/li>\n\n<li><strong>Hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 cao<\/strong>: 434 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao l\u00ean t\u1edbi 815\u00b0C, mang l\u1ea1i s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 b\u1ec1n trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ec7 th\u1ed1ng \u1ed1ng x\u1ea3 \u00f4 t\u00f4.<\/li>\n\n<li><strong>Kh\u1ea3 n\u0103ng h\u00e0n t\u1ed1t<\/strong>:M\u1eb7c d\u00f9 kh\u00f4ng d\u1ec5 h\u00e0n nh\u01b0 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 austenit nh\u01b0 304, th\u00e9p kh\u00f4ng g\u1ec9 434 v\u1eabn c\u00f3 th\u1ec3 h\u00e0n \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch x\u1eed l\u00fd tr\u01b0\u1edbc v\u00e0 sau khi h\u00e0n th\u00edch h\u1ee3p, khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c d\u1ef1 \u00e1n k\u1ebft c\u1ea5u.<\/li>\n\n<li><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed<\/strong>:So v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p austenit nh\u01b0 316, th\u00e9p 434 l\u00e0 l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n do h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p h\u01a1n, mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa hi\u1ec7u su\u1ea5t v\u00e0 gi\u00e1 c\u1ea3.<\/li>\n\n<li><strong>S\u1ef1 gi\u00e3n n\u1edf nhi\u1ec7t th\u1ea5p h\u01a1n<\/strong>:Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 \u0111\u1ed9 gi\u00e3n n\u1edf nhi\u1ec7t th\u1ea5p h\u01a1n th\u00e9p austenit, gi\u00fap gi\u1ea3m nguy c\u01a1 bi\u1ebfn d\u1ea1ng trong c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n\n<li><strong>T\u00ednh ch\u1ea5t t\u1eeb t\u00ednh<\/strong>: L\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 ferritic, 434 c\u00f3 t\u1eeb t\u00ednh. Trong qu\u00e1 tr\u00ecnh gia c\u00f4ng ngu\u1ed9i, t\u1eeb t\u00ednh c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 t\u0103ng l\u00ean do nh\u1eefng thay \u0111\u1ed5i v\u1ec1 c\u1ea5u tr\u00fac, d\u1eabn \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh pha martensitic nhi\u1ec1u h\u01a1n.<\/li><\/ol><h3 class=\"wp-block-heading\">Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434:<\/h3><ol class=\"wp-block-list\"><li><strong>\u0110\u1ed9 d\u1ebbo h\u1ea1n ch\u1ebf<\/strong>:L\u00e0 m\u1ed9t lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ferritic, th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 \u0111\u1ed9 d\u1ebbo th\u1ea5p h\u01a1n so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 austenit, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0y trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi ph\u1ea3i t\u1ea1o h\u00ecnh ho\u1eb7c k\u00e9o gi\u00e3n nhi\u1ec1u.<\/li>\n\n<li><strong>\u0110\u1ed9 b\u1ec1n th\u1ea5p h\u01a1n<\/strong>:\u1ede nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 0 \u0111\u1ed9, th\u00e9p 434 d\u1ec5 gi\u00f2n h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c nh\u01b0 th\u00e9p 304 ho\u1eb7c 316, khi\u1ebfn n\u00f3 \u00edt ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f4ng l\u1ea1nh.<\/li>\n\n<li><strong>Kh\u00f4ng th\u1ec3 l\u00e0m c\u1ee9ng b\u1eb1ng c\u00e1ch x\u1eed l\u00fd nhi\u1ec7t<\/strong>:Kh\u00f4ng gi\u1ed1ng nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 martensitic, th\u00e9p 434 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng th\u00f4ng qua x\u1eed l\u00fd nhi\u1ec7t, h\u1ea1n ch\u1ebf c\u00e1c t\u00f9y ch\u1ecdn t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n c\u1ee7a th\u00e9p n\u00e0y khi gia c\u00f4ng ngu\u1ed9i.<\/li>\n\n<li><strong>Th\u00e1ch th\u1ee9c h\u01a1n khi h\u00e0n<\/strong>:M\u1eb7c d\u00f9 c\u00f3 th\u1ec3 h\u00e0n \u0111\u01b0\u1ee3c, th\u00e9p kh\u00f4ng g\u1ec9 434 \u0111\u00f2i h\u1ecfi ph\u1ea3i ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c h\u01a1n trong qu\u00e1 tr\u00ecnh h\u00e0n do th\u00e9p d\u1ec5 b\u1ecb h\u00ecnh th\u00e0nh h\u1ea1t, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn n\u1ee9t ho\u1eb7c gi\u1ea3m \u0111\u1ed9 b\u1ec1n \u1edf v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t.<\/li><\/ol><p class=\"wp-block-paragraph\">B\u1ea5t ch\u1ea5p nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y, th\u00e9p kh\u00f4ng g\u1ec9 434 v\u1eabn l\u00e0 \u1ee9ng c\u1eed vi\u00ean s\u00e1ng gi\u00e1 cho nhi\u1ec1u \u1ee9ng d\u1ee5ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t l\u00e0 nh\u1eefng m\u1ed1i quan t\u00e2m ch\u00ednh.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 434 so v\u1edbi 316<\/h2><p class=\"wp-block-paragraph\"><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-316\/\">th\u00e9p kh\u00f4ng g\u1ec9 316<\/a> thu\u1ed9c nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9 austenit, n\u1ed5i ti\u1ebfng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n v\u00e0 m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh \u0103n m\u00f2n cao.<\/p><ul class=\"wp-block-list\"><li><strong>Ch\u1ed1ng \u0103n m\u00f2n<\/strong>: Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n c\u1ee7a n\u00f3 b\u1eaft ngu\u1ed3n t\u1eeb n\u1ed3ng \u0111\u1ed9 niken v\u00e0 molypden cao h\u01a1n, cho ph\u00e9p n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 434 trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n kh\u00f3 kh\u0103n. Tuy nhi\u00ean, 434 l\u00e0 qu\u00e1 \u0111\u1ee7 cho nh\u1eefng m\u00f4i tr\u01b0\u1eddng \u00edt \u0111\u00f2i h\u1ecfi h\u01a1n.<\/li>\n\n<li><strong>T\u00ednh ch\u1ea5t t\u1eeb t\u00ednh<\/strong>: 434 c\u00f3 t\u1eeb t\u00ednh, trong khi 316 kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh. \u0110i\u1ec1u n\u00e0y l\u00e0m cho 434 ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u t\u00ednh ch\u1ea5t t\u1eeb t\u00ednh.<\/li>\n\n<li><strong>Tr\u1ecb gi\u00e1<\/strong>: 316 c\u00f3 h\u00e0m l\u01b0\u1ee3ng niken cao h\u01a1n v\u00e0 do \u0111\u00f3 th\u01b0\u1eddng \u0111\u1eaft h\u01a1n 434.<\/li>\n\n<li><strong>S\u1ee9c m\u1ea1nh v\u00e0 \u0111\u1ed9 b\u1ec1n<\/strong>:316 c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 t\u1ed1t h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua, trong khi 434 \u00edt ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i.<\/li><\/ul><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 434 so v\u1edbi 430<\/h2><p class=\"wp-block-paragraph\">Trong khi c\u1ea3 434 v\u00e0 <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-430\/\">th\u00e9p kh\u00f4ng g\u1ec9 430<\/a> l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 ferritic, 434 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n do b\u1ed5 sung molypden.<\/p><ul class=\"wp-block-list\"><li><strong>Ch\u1ed1ng \u0103n m\u00f2n<\/strong>:434 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n 430 trong m\u00f4i tr\u01b0\u1eddng ti\u1ebfp x\u00fac v\u1edbi clorua ho\u1eb7c mu\u1ed1i ph\u00e1 b\u0103ng.<\/li>\n\n<li><strong>Tr\u1ecb gi\u00e1<\/strong>: 430 r\u1ebb h\u01a1n 434 v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng \u1ee9ng d\u1ee5ng m\u00e0 chi ph\u00ed l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n kh\u00f4ng \u0111\u00f2i h\u1ecfi cao.<\/li>\n\n<li><strong>\u1ee8ng d\u1ee5ng<\/strong>:C\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng 434 th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn cho m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi kh\u1eaft khe h\u01a1n ho\u1eb7c n\u01a1i c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao h\u01a1n.<\/li><\/ul><h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng cho th\u00e9p kh\u00f4ng g\u1ec9 434<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u00e2n b\u1eb1ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c l\u0129nh v\u1ef1c ch\u00ednh m\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 434 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng, c\u00f9ng v\u1edbi c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3 v\u00e0 l\u00fd do ph\u00f9 h\u1ee3p c\u1ee7a n\u00f3.<\/p><h3 class=\"wp-block-heading\"><strong>Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>\u1ee8ng d\u1ee5ng<\/strong>:<\/p><ul class=\"wp-block-list\"><li>H\u1ec7 th\u1ed1ng x\u1ea3<\/li>\n\n<li>T\u1ea5m ch\u1eafn nhi\u1ec7t<\/li>\n\n<li>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<br><strong>L\u00fd do<\/strong>: Kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a tuy\u1ec7t v\u1eddi \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 m\u1eb7t chi ph\u00ed c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434 khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c b\u1ed9 ph\u1eadn \u00f4 t\u00f4 ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t v\u00e0 kh\u00ed \u0103n m\u00f2n.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>Thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>\u1ee8ng d\u1ee5ng<\/strong>:<\/p><ul class=\"wp-block-list\"><li>B\u1ed3n r\u1eeda<\/li>\n\n<li>\u0110\u1ed3 n\u1ea5u n\u01b0\u1edbng<\/li>\n\n<li>M\u1eb7t b\u1ebfp<br><strong>L\u00fd do<\/strong>:Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt v\u00e0 c\u00f3 t\u00ednh axit, c\u00f9ng v\u1edbi kh\u1ea3 n\u0103ng d\u1ec5 v\u1ec7 sinh, khi\u1ebfn 434 tr\u1edf n\u00ean ho\u00e0n h\u1ea3o cho c\u00e1c thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp d\u00f9ng trong th\u1ef1c ph\u1ea9m.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>X\u00e2y d\u1ef1ng v\u00e0 Ki\u1ebfn tr\u00fac<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>\u1ee8ng d\u1ee5ng<\/strong>:<\/p><ul class=\"wp-block-list\"><li>H\u1ed7 tr\u1ee3 c\u1ea5u tr\u00fac<\/li>\n\n<li>L\u1edbp ph\u1ee7 b\u00ean ngo\u00e0i<\/li>\n\n<li>V\u1eadt li\u1ec7u l\u1ee3p m\u00e1i<br><strong>L\u00fd do<\/strong>: Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t c\u1ee7a 434 trong \u0111i\u1ec1u ki\u1ec7n ngo\u00e0i tr\u1eddi v\u00e0 \u0111\u1ed9 gi\u00e3n n\u1edf nhi\u1ec7t t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p cho c\u00e1c th\u00e0nh ph\u1ea7n k\u1ebft c\u1ea5u v\u00e0 ki\u1ebfn tr\u00fac.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>X\u1eed l\u00fd h\u00f3a h\u1ecdc<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>\u1ee8ng d\u1ee5ng<\/strong>:<\/p><ul class=\"wp-block-list\"><li>B\u1ed3n ch\u1ee9a h\u00f3a ch\u1ea5t<\/li>\n\n<li>B\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t<\/li>\n\n<li>H\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng<br><strong>L\u00fd do<\/strong>:Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p cho c\u00e1c thi\u1ebft b\u1ecb x\u1eed l\u00fd h\u00f3a ch\u1ea5t ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t m\u1ea1nh.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>\u1ee8ng d\u1ee5ng h\u00e0ng h\u1ea3i<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>\u1ee8ng d\u1ee5ng<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Ph\u1ee5 ki\u1ec7n thuy\u1ec1n<\/li>\n\n<li>Th\u00e0nh ph\u1ea7n Dock<\/li>\n\n<li>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng ven bi\u1ec3n<br><strong>L\u00fd do<\/strong>:Vi\u1ec7c b\u1ed5 sung molypden gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf, khi\u1ebfn th\u00e9p kh\u00f4ng g\u1ec9 434 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng bi\u1ec3n th\u01b0\u1eddng xuy\u00ean ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc m\u1eb7n.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>Thi\u1ebft b\u1ecb gia d\u1ee5ng<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>\u1ee8ng d\u1ee5ng<\/strong>:<\/p><ul class=\"wp-block-list\"><li>L\u1ed3ng gi\u1eb7t m\u00e1y gi\u1eb7t<\/li>\n\n<li>Linh ki\u1ec7n m\u00e1y s\u1ea5y<\/li>\n\n<li>T\u1ea5m t\u1ee7 l\u1ea1nh<br><strong>L\u00fd do<\/strong>: \u0110\u1ed9 b\u1ec1n, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 l\u1edbp ho\u00e0n thi\u1ec7n \u0111\u1eb9p m\u1eaft c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434 khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh s\u1ef1 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c b\u1ed9 ph\u1eadn thi\u1ebft b\u1ecb th\u01b0\u1eddng xuy\u00ean ti\u1ebfp x\u00fac v\u1edbi \u0111\u1ed9 \u1ea9m v\u00e0 s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean.<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>Thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p<\/strong><\/h3><p class=\"wp-block-paragraph\"><strong>\u1ee8ng d\u1ee5ng<\/strong>:<\/p><ul class=\"wp-block-list\"><li>B\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t<\/li>\n\n<li>C\u00e1c b\u1ed9 ph\u1eadn l\u00f2<\/li>\n\n<li>Ch\u1ed1t<br><strong>L\u00fd do<\/strong>:Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc v\u1eeba ph\u1ea3i l\u00e0m cho th\u00e9p kh\u00f4ng g\u1ec9 434 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 v\u1eadt li\u1ec7u \u0103n m\u00f2n.<\/li><\/ul><p class=\"wp-block-paragraph\">Trong m\u1ed7i l\u0129nh v\u1ef1c n\u00e0y, th\u00e9p kh\u00f4ng g\u1ec9 434 mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed, hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh s\u1ef1 l\u1ef1a ch\u1ecdn linh ho\u1ea1t cho nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p><h2 class=\"wp-block-heading\">C\u00e1i g\u00ec t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 434 Material?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 m\u1ed9t s\u1ed1 lo\u1ea1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng trong c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 EN 1.4113, JIS SUS 434, GB 10Cr17Mo v\u00e0 ASTM AISI 434. C\u00e1c lo\u1ea1i n\u00e0y c\u00f3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m v\u1eadt l\u00fd t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau, cho ph\u00e9p ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng thay th\u1ebf cho nhau trong nhi\u1ec1u m\u1ee5c \u0111\u00edch kh\u00e1c nhau.<\/p><h2 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 434 so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 304 nh\u01b0 th\u1ebf n\u00e0o?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n do clorua t\u1ed1t h\u01a1n do c\u00f3 ch\u1ee9a molypden, trong khi <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-304\/\">th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n n\u00f3i chung v\u01b0\u1ee3t tr\u1ed9i nh\u01b0ng c\u00f3 th\u1ec3 k\u00e9m b\u1ec1n h\u01a1n trong m\u00f4i tr\u01b0\u1eddng c\u00f3 clorua ho\u1eb7c \u0111\u1ed9 m\u1eb7n cao.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 434 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 l\u00ean t\u1edbi 815\u00b0C. N\u00f3 v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a, ph\u00f9 h\u1ee3p cho c\u00e1c m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng li\u00ean quan \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 cao.<\/p><h2 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec l\u00e0m cho th\u00e9p kh\u00f4ng g\u1ec9 434 kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 Ferritic kh\u00e1c?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 n\u1ed5i b\u1eadt so v\u1edbi c\u00e1c lo\u1ea1i kh\u00e1c <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/ferritic\/\">th\u00e9p kh\u00f4ng g\u1ec9 ferritic<\/a> do kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n nh\u1edd b\u1ed5 sung molypden, c\u00f9ng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng n\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p ferritic kh\u00e1c.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 th\u1ec3 h\u00e0n d\u1ec5 d\u00e0ng kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f3 th\u1ec3 h\u00e0n \u0111\u01b0\u1ee3c, nh\u01b0ng c\u1ea7n ph\u1ea3i c\u1ea9n th\u1eadn v\u00ec th\u00e9p ferritic c\u00f3 th\u1ec3 d\u1ec5 b\u1ecb ph\u00e1t tri\u1ec3n h\u1ea1t v\u00e0 gi\u00f2n \u1edf v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a nhi\u1ec7t. Tr\u01b0\u1edbc v\u00e0 sau khi h\u00e0n, c\u00f3 th\u1ec3 c\u1ea7n x\u1eed l\u00fd \u0111\u1ec3 ng\u0103n ng\u1eeba g\u00e3y v\u00e0 \u0111\u1ea3m b\u1ea3o m\u1ed1i h\u00e0n ch\u1eafc ch\u1eafn.<\/p><h2 class=\"wp-block-heading\">Nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 434<\/h2><p class=\"wp-block-paragraph\">L\u00e0 m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 chuy\u00ean nghi\u1ec7p, <a href=\"https:\/\/steelprogroup.com\/vi\">T\u1eadp \u0111o\u00e0n SteelPro<\/a> cam k\u1ebft cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t v\u1edbi \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng 100% v\u00e0 b\u1ea3o h\u00e0nh tr\u1ecdn \u0111\u1eddi. V\u1ecb th\u1ebf c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean \u0111\u1ed9 tin c\u1eady, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 s\u1ef1 h\u00e0i l\u00f2ng c\u1ee7a kh\u00e1ch h\u00e0ng, \u0111\u1ecbnh v\u1ecb ch\u00fang t\u00f4i l\u00e0 \u0111\u1ed1i t\u00e1c \u0111\u00e1ng tin c\u1eady cho c\u00e1c doanh nghi\u1ec7p tr\u00ean to\u00e0n c\u1ea7u.<\/p><p class=\"wp-block-paragraph\">Khi l\u1ef1a ch\u1ecdn th\u00e9p kh\u00f4ng g\u1ec9 434 c\u1ee7a ch\u00fang t\u00f4i, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i:<\/p><ul class=\"wp-block-list\"><li><strong>Ch\u1ea5t l\u01b0\u1ee3ng cao<\/strong>:Th\u00e9p kh\u00f4ng g\u1ec9 434 c\u1ee7a ch\u00fang t\u00f4i tr\u1ea3i qua qu\u00e1 tr\u00ecnh ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t cao nh\u1ea5t trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/li>\n\n<li><strong>Gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p<\/strong>:Ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c h\u00ecnh d\u1ea1ng v\u00e0 \u0111\u1ecbnh d\u1ea1ng \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u d\u1ef1 \u00e1n c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/li>\n\n<li><strong>Gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng<\/strong>:Ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p v\u1edbi ng\u00e2n s\u00e1ch m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ti\u00eau chu\u1ea9n, gi\u00fap b\u1ea1n duy tr\u00ec ng\u00e2n s\u00e1ch.<\/li>\n\n<li><strong>H\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt<\/strong>:C\u00e1c k\u1ef9 s\u01b0 chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i lu\u00f4n s\u1eb5n s\u00e0ng t\u01b0 v\u1ea5n v\u00e0 h\u1ed7 tr\u1ee3 b\u1ea1n trong su\u1ed1t qu\u00e1 tr\u00ecnh mua h\u00e0ng v\u00e0 \u0111\u0103ng k\u00fd.<\/li>\n\n<li><strong>Giao h\u00e0ng nhanh ch\u00f3ng<\/strong>:Th\u00f4ng qua m\u1ea1ng l\u01b0\u1edbi ph\u00e2n ph\u1ed1i qu\u1ed1c t\u1ebf, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o giao h\u00e0ng nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n \u0111\u00fang ti\u1ebfn \u0111\u1ed9.<\/li><\/ul><p class=\"wp-block-paragraph\"><a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\">Li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay<\/a> \u0111\u1ec3 g\u1eedi y\u00eau c\u1ea7u d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n v\u00e0 tr\u1ea3i nghi\u1ec7m c\u00e1c gi\u1ea3i ph\u00e1p th\u00e9p kh\u00f4ng g\u1ec9 434 c\u00f9ng c\u00e1c d\u1ecbch v\u1ee5 t\u00f9y ch\u1ec9nh c\u1ee7a ch\u00fang t\u00f4i!<\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u00e9p kh\u00f4ng g\u1ec9 434 l\u00e0 v\u1eadt li\u1ec7u ferritic \u0111a n\u0103ng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 \u0111\u1ed9 b\u1ec1n v\u1eeba ph\u1ea3i, t\u1ea1o n\u00ean 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