{"id":10778,"date":"2024-09-19T02:28:00","date_gmt":"2024-09-18T18:28:00","guid":{"rendered":"https:\/\/app11147.cloudwayssites.com\/?p=10778"},"modified":"2025-02-18T10:19:55","modified_gmt":"2025-02-18T02:19:55","slug":"corrosion-resistant","status":"publish","type":"post","link":"https:\/\/steelprogroup.com\/vi\/stainless-steel\/properties\/corrosion-resistant\/","title":{"rendered":"Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 ch\u1ed1ng \u0103n m\u00f2n kh\u00f4ng?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">C\u00f3, nh\u01b0ng th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t \u0111\u1ed1i. N\u00f3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m th\u00e0nh ph\u1ea7n h\u1ee3p kim, m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng v\u00e0 t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t. Ch\u00fang t\u00f4i tr\u1ea3 l\u1eddi m\u1ed9t lo\u1ea1t c\u00e1c c\u00e2u h\u1ecfi v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9, bao g\u1ed3m ngu\u1ed3n g\u1ed1c kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a c\u00e1c lo\u1ea1i kh\u00e1c nhau v\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra g\u1ec9 th\u00e9p kh\u00f4ng g\u1ec9, \u0111\u1ed3ng th\u1eddi cung c\u1ea5p cho b\u1ea1n m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p ph\u00f2ng ng\u1eeba g\u1ec9 v\u00e0 lo\u1ea1i b\u1ecf g\u1ec9.<\/p><h2 class=\"wp-block-heading\">T\u1ea1i sao th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 v\u1eadt li\u1ec7u h\u1ee3p kim ch\u1ed1ng \u0103n m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb nguy\u00ean t\u1ed1 crom (Cr) trong th\u00e0nh ph\u1ea7n h\u1ee3p kim c\u1ee7a n\u00f3.<\/p><h3 class=\"wp-block-heading\">Phim b\u1ea3o v\u1ec7<\/h3><p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ebfn t\u1eeb l\u1edbp oxit th\u1ee5 \u0111\u1ed9ng c\u1ef1c m\u1ecfng h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3, ch\u1ee7 y\u1ebfu bao g\u1ed3m crom oxit. L\u1edbp oxy h\u00f3a n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra khi crom trong th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 oxy trong kh\u00f4ng kh\u00ed ho\u1eb7c n\u01b0\u1edbc ph\u1ea3n \u1ee9ng, gi\u00fap kim lo\u1ea1i tr\u00e1nh ti\u1ebfp x\u00fac v\u1edbi c\u00e1c ch\u1ea5t \u0103n m\u00f2n.<\/p><p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 l\u1edbp m\u00e0ng b\u1ea3o v\u1ec7 n\u00e0y ch\u1ec9 d\u00e0y v\u00e0i nanomet, nh\u01b0ng n\u00f3 r\u1ea5t ch\u1eafc ch\u1eafn v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 ph\u1ee5c h\u1ed3i. N\u1ebfu b\u1ec1 m\u1eb7t b\u1ecb h\u01b0 h\u1ecfng, l\u1edbp oxit s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u00e1i t\u1ea1o mi\u1ec5n l\u00e0 c\u00f3 \u0111\u1ee7 oxy trong m\u00f4i tr\u01b0\u1eddng. T\u00ednh n\u0103ng n\u00e0y l\u00e0m cho th\u00e9p kh\u00f4ng g\u1ec9 r\u1ea5t ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, d\u1ec5 b\u1ecb m\u00e0i m\u00f2n.<\/p><h3 class=\"wp-block-heading\">Th\u00e0nh ph\u1ea7n th\u00e9p kh\u00f4ng g\u1ec9<\/h3><p class=\"wp-block-paragraph\">Vi\u1ec7c b\u1ed5 sung c\u00e1c nguy\u00ean t\u1ed1 h\u1ee3p kim kh\u00e1c \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9. M\u1ed9t s\u1ed1 nguy\u00ean t\u1ed1 ch\u00ednh bao g\u1ed3m:<\/p><p class=\"wp-block-paragraph\"><strong>Crom (Cr):<\/strong> Cr l\u00e0 nguy\u00ean t\u1ed1 quan tr\u1ecdng gi\u00fap th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, h\u00e0m l\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u c\u1ea7n thi\u1ebft l\u00e0 10,5% \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n h\u00ecnh th\u00e0nh l\u1edbp oxit b\u1ea3o v\u1ec7.<\/p><p class=\"wp-block-paragraph\"><strong>Niken (Ni): <\/strong>\u1ed4n \u0111\u1ecbnh c\u1ea5u tr\u00fac austenit, c\u1ea3i thi\u1ec7n \u0111\u1ed9 d\u1ebbo dai v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng chua.<\/p><p class=\"wp-block-paragraph\"><strong>Molypden (Mo):<\/strong> T\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf, \u0111\u1eb7c bi\u1ec7t trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua nh\u01b0 \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i.<\/p><p class=\"wp-block-paragraph\"><strong>Nit\u01a1 (N): <\/strong>C\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee5c b\u1ed9. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u00eam v\u00e0o th\u00e9p kh\u00f4ng g\u1ec9 duplex v\u00e0 austenit.<\/p><p class=\"wp-block-paragraph\"><strong>Cacbon (C):<\/strong> C\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng, nh\u01b0ng c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t. S\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i carbon th\u1ea5p h\u01a1n (v\u00ed d\u1ee5 304L, 316L) s\u1ebd tr\u00e1nh \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p><p class=\"wp-block-paragraph\"><strong>Silic (Si):<\/strong> T\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu v\u1edbi m\u00f4i tr\u01b0\u1eddng chua.<\/p><p class=\"wp-block-paragraph\"><strong>Titan (Ti): <\/strong>Ng\u0103n ng\u1eeba s\u1ef1 \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t trong th\u00e9p kh\u00f4ng g\u1ec9 h\u00e0n b\u1eb1ng c\u00e1ch \u1ed5n \u0111\u1ecbnh cacbon v\u00e0 ng\u0103n ng\u1eeba s\u1ef1 h\u00ecnh th\u00e0nh crom cacbua.<\/p><p class=\"wp-block-paragraph\"><strong>\u0110\u1ed3ng (Cu):<\/strong> N\u00f3 c\u0169ng l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i axit sunfuric v\u00e0 n\u00e2ng cao h\u01a1n n\u1eefa kh\u1ea3 n\u0103ng ch\u1ecbu n\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t c\u1ee7a th\u00e9p trong m\u00f4i tr\u01b0\u1eddng c\u00f3 ch\u1ee9a clorua.<\/p><p class=\"wp-block-paragraph\"><strong>Niobi (Cb\/Nb):<\/strong> Ng\u0103n ng\u1eeba \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 titan, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao (nh\u01b0 347).<\/p><p class=\"wp-block-paragraph\">Th\u00e0nh ph\u1ea7n ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c nguy\u00ean t\u1ed1 n\u00e0y c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c lo\u1ea1i \u0103n m\u00f2n kh\u00e1c nhau.<\/p><h3 class=\"wp-block-heading\">\u0110i\u1ec1u ki\u1ec7n c\u1ea5u tr\u00fac<\/h3><p class=\"wp-block-paragraph\">C\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a n\u00f3. \u0110\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean \u0111\u1eb7c \u0111i\u1ec3m c\u1ea5u tr\u00fac vi m\u00f4, c\u00f3 ba lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ch\u00ednh:<\/p><p class=\"wp-block-paragraph\"><strong>Th\u00e9p kh\u00f4ng g\u1ec9 Austenit:<\/strong> C\u1ea5u tr\u00fac tinh th\u1ec3 l\u1eadp ph\u01b0\u01a1ng t\u00e2m m\u1eb7t (FCC), kh\u00f4ng c\u00f3 t\u1eeb t\u00ednh, ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng crom v\u00e0 niken cao v\u00e0 l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t nh\u1ea5t.<\/p><p class=\"wp-block-paragraph\"><strong>Th\u00e9p kh\u00f4ng g\u1ec9 Ferritic:<\/strong> Ch\u00fang c\u00f3 t\u1eeb t\u00ednh v\u00e0 c\u00f3 c\u1ea5u tr\u00fac tinh th\u1ec3 kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng t\u00e2m kh\u1ed1i (BCC). Ch\u00fang c\u00f3 h\u00e0m l\u01b0\u1ee3ng crom cao v\u00e0 h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p, khi\u1ebfn ch\u00fang \u00edt ch\u1ed1ng \u0103n m\u00f2n h\u01a1n th\u00e9p kh\u00f4ng g\u1ec9 austenit v\u00e0 d\u1ec5 b\u1ecb \u0103n m\u00f2n h\u01a1n trong m\u00f4i tr\u01b0\u1eddng c\u00f3 ch\u1ee9a clorua.<\/p><p class=\"wp-block-paragraph\"><strong>Th\u00e9p kh\u00f4ng g\u1ec9 Martensitic:<\/strong> Th\u00e9p kh\u00f4ng g\u1ec9 martensitic (nh\u01b0 410, 420) l\u00e0 c\u1ea5u tr\u00fac t\u1ee9 gi\u00e1c t\u00e2m kh\u1ed1i (BCT) v\u00e0 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n, nh\u01b0ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n c\u00e1c lo\u1ea1i austenitic.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">C\u00f3. M\u1eb7c d\u00f9 c\u00f3 t\u00ean nh\u01b0 v\u1eady, th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng ho\u00e0n to\u00e0n mi\u1ec5n nhi\u1ec5m v\u1edbi r\u1ec9 s\u00e9t. Trong m\u1ed9t s\u1ed1 m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u1ee5 th\u1ec3, th\u00e9p kh\u00f4ng g\u1ec9 th\u1ef1c s\u1ef1 c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n.&nbsp;<\/p><p class=\"wp-block-paragraph\">\u0110\u1ecdc th\u00eam li\u00ean quan: <br><a href=\"http:\/\/Does stainless steel rust?\" target=\"_blank\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/a><br><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/maintenance\/green\/\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 chuy\u1ec3n sang m\u00e0u xanh l\u00e1 c\u00e2y kh\u00f4ng?<\/a><\/p><h3 class=\"wp-block-heading\">T\u1ea1i sao th\u00e9p kh\u00f4ng g\u1ec9 b\u1ecb g\u1ec9?<\/h3><p class=\"wp-block-paragraph\">R\u1ec9 s\u00e9t tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 x\u1ea3y ra khi l\u1edbp oxit th\u1ee5 \u0111\u1ed9ng b\u1ecb t\u1ed5n h\u1ea1i ho\u1eb7c h\u01b0 h\u1ecfng. S\u1ef1 c\u1ed1 n\u00e0y c\u00f3 th\u1ec3 do:<\/p><ul class=\"wp-block-list\"><li>H\u01b0 h\u1ecfng c\u01a1 h\u1ecdc: C\u00e1c v\u1ebft x\u01b0\u1edbc, v\u1ebft l\u00f5m ho\u1eb7c va \u0111\u1eadp c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng l\u1edbp b\u1ea3o v\u1ec7, khi\u1ebfn ph\u1ea7n kim lo\u1ea1i b\u00ean d\u01b0\u1edbi ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/li>\n\n<li>Ti\u1ebfp x\u00fac v\u1edbi Clorua: Clorua, th\u01b0\u1eddng c\u00f3 trong n\u01b0\u1edbc m\u1eb7n, mu\u1ed1i ph\u00e1 b\u0103ng tr\u00ean \u0111\u01b0\u1eddng v\u00e0 th\u1eadm ch\u00ed m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m t\u1ea9y r\u1eeda, c\u00f3 th\u1ec3 ph\u00e1 v\u1ee1 l\u1edbp th\u1ee5 \u0111\u1ed9ng v\u00e0 d\u1eabn \u0111\u1ebfn \u0103n m\u00f2n r\u1ed7.<\/li>\n\n<li>Thi\u1ebfu oxy: Trong m\u00f4i tr\u01b0\u1eddng h\u1ea1n ch\u1ebf oxy, ch\u1eb3ng h\u1ea1n nh\u01b0 khe n\u1ee9t ho\u1eb7c d\u01b0\u1edbi l\u1edbp tr\u1ea7m t\u00edch, l\u1edbp oxit th\u1ee5 \u0111\u1ed9ng c\u00f3 th\u1ec3 kh\u00f4ng t\u00e1i t\u1ea1o, khi\u1ebfn kim lo\u1ea1i d\u1ec5 b\u1ecb \u0103n m\u00f2n h\u01a1n.<\/li><\/ul><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 b\u00ean ngo\u00e0i kh\u00f4ng?<\/h3><p class=\"wp-block-paragraph\">\u0110\u00f4i khi. Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 n\u1ebfu s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 duplex 316 ho\u1eb7c 2205. Tuy nhi\u00ean, \u1edf c\u00e1c v\u00f9ng ven bi\u1ec3n c\u00f3 mu\u1ed1i trong kh\u00f4ng kh\u00ed, ngay c\u1ea3 c\u00e1c lo\u1ea1i nh\u01b0 304 c\u0169ng c\u00f3 th\u1ec3 b\u1ecb r\u1ec9 s\u00e9t n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang c\u00e1ch. Vi\u1ec7c v\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean v\u00e0 b\u1ea3o d\u01b0\u1ee1ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba r\u1ec9 s\u00e9t trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n n\u00e0y.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 trong n\u01b0\u1edbc kh\u00f4ng?<\/h3><p class=\"wp-block-paragraph\">C\u00f3. Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng n\u01b0\u1edbc v\u1ed1n c\u00f3, m\u1eb7c d\u00f9 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a n\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh tu\u1ed5i th\u1ecd c\u1ee7a th\u00e9p. C\u1ee5 th\u1ec3, n\u01b0\u1edbc c\u1ee9ng ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng l\u1edbn kho\u00e1ng ch\u1ea5t nh\u01b0 canxi v\u00e0 magi\u00ea, l\u1eafng \u0111\u1ecdng c\u1eb7n tr\u00ean b\u1ec1 m\u1eb7t th\u00e9p, cu\u1ed1i c\u00f9ng l\u00e0m h\u1ecfng l\u1edbp th\u1ee5 \u0111\u1ed9ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p. Ng\u01b0\u1ee3c l\u1ea1i, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 kh\u00f4ng b\u1ecb g\u1ec9 trong th\u1eddi gian d\u00e0i h\u01a1n khi ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc m\u1ec1m ho\u1eb7c n\u01b0\u1edbc tinh khi\u1ebft.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 trong n\u01b0\u1edbc mu\u1ed1i kh\u00f4ng?<\/h3><p class=\"wp-block-paragraph\">C\u00f3. M\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc m\u1eb7n \u0111\u1eb7c bi\u1ec7t g\u00e2y h\u1ea1i cho th\u00e9p kh\u00f4ng g\u1ec9. Clorua trong n\u01b0\u1edbc m\u1eb7n l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 ph\u00e2n h\u1ee7y l\u1edbp oxit th\u1ee5 \u0111\u1ed9ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea5p th\u1ea5p h\u01a1n nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9 304.&nbsp;<\/p><p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng h\u00e0ng h\u1ea3i, th\u00e9p kh\u00f4ng g\u1ec9 316 c\u00f3 h\u00e0m l\u01b0\u1ee3ng molypden cao h\u01a1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf cao. Tuy nhi\u00ean, ngay c\u1ea3 316 c\u0169ng c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n theo th\u1eddi gian n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang c\u00e1ch.<\/p><h3 class=\"wp-block-heading\">Ph\u1ea3i m\u1ea5t bao l\u00e2u th\u00ec th\u00e9p kh\u00f4ng g\u1ec9 m\u1edbi b\u1ecb r\u1ec9 s\u00e9t?<\/h3><p class=\"wp-block-paragraph\">T\u1ed1c \u0111\u1ed9 g\u1ec9 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1, bao g\u1ed3m c\u1ea5p th\u00e9p, m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c t\u00e1c nh\u00e2n \u0103n m\u00f2n nh\u01b0 clorua. Trong m\u00f4i tr\u01b0\u1eddng \u00f4n h\u00f2a, ch\u1eb3ng h\u1ea1n nh\u01b0 trong nh\u00e0, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i v\u00f4 th\u1eddi h\u1ea1n m\u00e0 kh\u00f4ng b\u1ecb g\u1ec9. Trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 g\u1ea7n \u0111\u1ea1i d\u01b0\u01a1ng, g\u1ec9 c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n trong v\u00f2ng v\u00e0i th\u00e1ng n\u1ebfu th\u00e9p kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang c\u00e1ch.<\/p><h3 class=\"wp-block-heading\">Th\u00e9p ph\u1eabu thu\u1eadt c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h3><p class=\"wp-block-paragraph\">KH\u00d4NG. <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/medical-grade\/\">Th\u00e9p ph\u1eabu thu\u1eadt<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n, khi\u1ebfn n\u00f3 r\u1ea5t kh\u00f3 b\u1ecb r\u1ec9 s\u00e9t trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng. N\u00f3 th\u01b0\u1eddng ch\u1ee9a t\u1ef7 l\u1ec7 crom cao h\u01a1n, t\u1ea1o th\u00e0nh l\u1edbp b\u1ea3o v\u1ec7 tr\u00ean b\u1ec1 m\u1eb7t. Tuy nhi\u00ean, n\u1ebfu ti\u1ebfp x\u00fac v\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t ho\u1eb7c ch\u0103m s\u00f3c kh\u00f4ng \u0111\u00fang c\u00e1ch, n\u00f3 c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n theo th\u1eddi gian. Vi\u1ec7c v\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean v\u00e0 tr\u00e1nh ti\u1ebfp x\u00fac l\u00e2u v\u1edbi \u0111\u1ed9 \u1ea9m c\u00f3 th\u1ec3 gi\u00fap duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a n\u00f3.<\/p><h2 class=\"wp-block-heading\">C\u00e1c lo\u1ea1i \u0103n m\u00f2n trong th\u00e9p kh\u00f4ng g\u1ec9<\/h2><p class=\"wp-block-paragraph\">C\u00f3 nhi\u1ec1u lo\u1ea1i \u0103n m\u00f2n th\u00e9p kh\u00f4ng g\u1ec9 do c\u00e1c \u0111i\u1ec1u ki\u1ec7n ti\u1ebfp x\u00fac v\u1edbi v\u1eadt li\u1ec7u v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n \u0111\u1ed3ng \u0111\u1ec1u<\/h3><p class=\"wp-block-paragraph\">\u0102n m\u00f2n \u0111\u1ed3ng \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn to\u00e0n b\u1ed9 b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 m\u1ed9t c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u, d\u1eabn \u0111\u1ebfn m\u1ea5t v\u1eadt li\u1ec7u li\u00ean t\u1ee5c. Lo\u1ea1i n\u00e0y th\u01b0\u1eddng g\u1eb7p trong m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh \u0103n m\u00f2n cao nh\u01b0 axit m\u1ea1nh. \u0110\u1ec3 ng\u0103n ng\u1eeba, h\u00e3y ch\u1ecdn lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ph\u00f9 h\u1ee3p v\u00e0 s\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n c\u1ee5c b\u1ed9<\/h3><p class=\"wp-block-paragraph\">\u0102n m\u00f2n c\u1ee5c b\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c khu v\u1ef1c c\u1ee5 th\u1ec3 c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9, th\u01b0\u1eddng g\u00e2y ra thi\u1ec7t h\u1ea1i nghi\u00eam tr\u1ecdng h\u01a1n do b\u1ea3n ch\u1ea5t ti\u1ec1m \u1ea9n c\u1ee7a n\u00f3.<\/p><ul class=\"wp-block-list\"><li><strong>\u0102n m\u00f2n r\u1ed7:<\/strong> \u0102n m\u00f2n r\u1ed7 l\u00e0 do s\u1ef1 ph\u00e1 v\u1ee1 l\u1edbp th\u1ee5 \u0111\u1ed9ng \u1edf c\u00e1c khu v\u1ef1c c\u1ee5c b\u1ed9, th\u01b0\u1eddng do clorua g\u00e2y ra, d\u1eabn \u0111\u1ebfn h\u00ecnh th\u00e0nh c\u00e1c r\u1ed7 ho\u1eb7c l\u1ed7 nh\u1ecf tr\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i. R\u1ed7 th\u01b0\u1eddng g\u1eb7p trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n v\u00e0 c\u00f3 th\u1ec3 nhanh ch\u00f3ng d\u1eabn \u0111\u1ebfn h\u1ecfng v\u1eadt li\u1ec7u n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd.<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>\u0102n m\u00f2n khe h\u1edf:<\/strong> \u0102n m\u00f2n khe h\u1edf th\u01b0\u1eddng x\u1ea3y ra \u1edf nh\u1eefng khu v\u1ef1c h\u1ea1n ch\u1ebf m\u00e0 oxy kh\u00f4ng th\u1ec3 \u0111i v\u00e0o \u0111\u1ea7y \u0111\u1ee7, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u01b0\u1edbi mi\u1ebfng \u0111\u1ec7m, ph\u1edbt ho\u1eb7c c\u1eb7n. N\u1ebfu kh\u00f4ng c\u00f3 \u0111\u1ee7 oxy, l\u1edbp th\u1ee5 \u0111\u1ed9ng kh\u00f4ng th\u1ec3 t\u00e1i t\u1ea1o, d\u1eabn \u0111\u1ebfn \u0103n m\u00f2n c\u1ee5c b\u1ed9 trong khe h\u1edf.<\/li><\/ul><h3 class=\"wp-block-heading\">\u0102n m\u00f2n \u0111i\u1ec7n h\u00f3a<\/h3><p class=\"wp-block-paragraph\">\u0102n m\u00f2n \u0111i\u1ec7n h\u00f3a x\u1ea3y ra khi th\u00e9p kh\u00f4ng g\u1ec9 ti\u1ebfp x\u00fac v\u1edbi kim lo\u1ea1i ph\u1ea3n \u1ee9ng m\u1ea1nh h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00e9p cacbon, v\u00e0 c\u00f3 ch\u1ea5t \u0111i\u1ec7n ph\u00e2n, ch\u1eb3ng h\u1ea1n nh\u01b0 n\u01b0\u1edbc. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, kim lo\u1ea1i ph\u1ea3n \u1ee9ng m\u1ea1nh h\u01a1n \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ef1c d\u01b0\u01a1ng, \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh h\u00f2a tan, trong khi th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ef1c \u00e2m, v\u1edbi \u00edt ho\u1eb7c kh\u00f4ng c\u00f3 s\u1ef1 \u0103n m\u00f2n.<\/p><h3 class=\"wp-block-heading\">\u0102n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t<\/h3><p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 d\u1ea1ng \u0103n m\u00f2n \u0111\u1eb7c bi\u1ec7t nguy hi\u1ec3m trong th\u00e9p kh\u00f4ng g\u1ec9. N\u00f3 x\u1ea3y ra d\u1ecdc theo c\u00e1c c\u1ea1nh c\u1ee7a h\u1ea1t kim lo\u1ea1i v\u00e0 kh\u00f4ng g\u00e2y ra b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o v\u1ec1 ngo\u1ea1i h\u00ecnh c\u1ee7a kim lo\u1ea1i, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u1ee7a c\u00e1c c\u1ea5u tr\u00fac v\u00e0 b\u1ed9 ph\u1eadn, d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng \u0111\u1ed9t ng\u1ed9t cho thi\u1ebft b\u1ecb. \u0102n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nh\u00ecn th\u1ea5y trong c\u1ea3 th\u00e9p kh\u00f4ng g\u1ec9 austenit v\u00e0 ferritic.<\/p><h3 class=\"wp-block-heading\">N\u1ee9t do \u0103n m\u00f2n \u1ee9ng su\u1ea5t (SCC)<\/h3><p class=\"wp-block-paragraph\">SCC x\u1ea3y ra khi th\u00e9p kh\u00f4ng g\u1ec9 ch\u1ecbu \u1ee9ng su\u1ea5t k\u00e9o trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u00f4i tr\u01b0\u1eddng c\u00f3 ch\u1ee9a clorua. K\u1ebft qu\u1ea3 l\u00e0 n\u1ee9t, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1ecfng v\u1eadt li\u1ec7u \u0111\u1ed9t ng\u1ed9t.<\/p><h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n ch\u1eb7n th\u00e9p kh\u00f4ng g\u1ec9 b\u1ecb r\u1ec9 s\u00e9t?<\/h2><p class=\"wp-block-paragraph\">\u0110\u1ec3 ng\u0103n ng\u1eeba g\u1ec9 s\u00e9t tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9, c\u1ea7n ph\u1ea3i k\u1ebft h\u1ee3p gi\u1eefa vi\u1ec7c l\u1ef1a ch\u1ecdn lo\u1ea1i th\u00e9p ph\u00f9 h\u1ee3p, b\u1ea3o d\u01b0\u1ee1ng v\u1eadt li\u1ec7u v\u00e0 x\u1eed l\u00fd ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng.<\/p><ul class=\"wp-block-list\"><li>Ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p: \u0110\u1ed1i v\u1edbi nh\u1eefng m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00f4i tr\u01b0\u1eddng bi\u1ec3n ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p c\u00f3 nhi\u1ec1u clorua, h\u00e3y s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 316 ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9 hai l\u1edbp, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf t\u1ed1t h\u01a1n.<\/li><\/ul><ul class=\"wp-block-list\"><li>V\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean: Gi\u1eef b\u1ec1 m\u1eb7t th\u00e9p kh\u00f4ng g\u1ec9 s\u1ea1ch s\u1ebd b\u1eb1ng c\u00e1ch th\u01b0\u1eddng xuy\u00ean lo\u1ea1i b\u1ecf b\u1ee5i b\u1ea9n, mu\u1ed1i v\u00e0 h\u00f3a ch\u1ea5t. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 v\u1ec7 sinh kh\u00f4ng m\u00e0i m\u00f2n v\u00e0 tr\u00e1nh c\u00e1c ch\u1ea5t t\u1ea9y r\u1eeda c\u00f3 ch\u1ee9a clorua.<\/li><\/ul><ul class=\"wp-block-list\"><li>Th\u1ee5 \u0111\u1ed9ng h\u00f3a: Th\u1ee5 \u0111\u1ed9ng h\u00f3a l\u00e0 qu\u00e1 tr\u00ecnh t\u0103ng c\u01b0\u1eddng l\u1edbp oxit th\u1ee5 \u0111\u1ed9ng tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 th\u00f4ng qua qu\u00e1 tr\u00ecnh h\u00f3a h\u1ecdc. X\u1eed l\u00fd n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng sau khi ch\u1ebf t\u1ea1o \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n.<\/li><\/ul><ul class=\"wp-block-list\"><li>L\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7: S\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 nh\u01b0 s\u01a1n t\u0129nh \u0111i\u1ec7n c\u00f3 th\u1ec3 cung c\u1ea5p th\u00eam m\u1ed9t l\u1edbp r\u00e0o c\u1ea3n ch\u1ed1ng \u0103n m\u00f2n.<\/li><\/ul><h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9?<\/h2><p class=\"wp-block-paragraph\">N\u1ebfu r\u1ec9 s\u00e9t h\u00ecnh th\u00e0nh tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9, c\u00f3 m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t:<\/p><p class=\"wp-block-paragraph\"><strong>V\u1ec7 sinh c\u01a1 h\u1ecdc:<\/strong> S\u1eed d\u1ee5ng v\u1ea3i m\u1ec1m ho\u1eb7c d\u1ee5ng c\u1ee5 ch\u00e0 kh\u00f4ng m\u00e0i m\u00f2n \u0111\u1ec3 nh\u1eb9 nh\u00e0ng lo\u1ea1i b\u1ecf c\u00e1c v\u1ebft g\u1ec9. N\u00ean tr\u00e1nh s\u1eed d\u1ee5ng len th\u00e9p ho\u1eb7c b\u00e0n ch\u1ea3i kim lo\u1ea1i v\u00ec ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y h\u1ea1i cho b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh g\u1ec9 s\u00e9t.<\/p><p class=\"wp-block-paragraph\"><strong>Ch\u1ea5t t\u1ea9y r\u1ec9 s\u00e9t h\u00f3a h\u1ecdc:<\/strong> C\u00f3 nh\u1eefng ch\u1ea5t t\u1ea9y g\u1ec9 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho th\u00e9p kh\u00f4ng g\u1ec9. Nh\u1eefng s\u1ea3n ph\u1ea9m n\u00e0y h\u00f2a tan g\u1ec9 m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng b\u1ec1 m\u1eb7t ho\u1eb7c \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1edbp th\u1ee5 \u0111\u1ed9ng.<\/p><p class=\"wp-block-paragraph\"><strong>S\u1ef1 th\u1ee5 \u0111\u1ed9ng:<\/strong> Sau khi lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t, h\u00e3y c\u00e2n nh\u1eafc vi\u1ec7c th\u1ee5 \u0111\u1ed9ng h\u00f3a b\u1ec1 m\u1eb7t \u0111\u1ec3 ph\u1ee5c h\u1ed3i l\u1edbp oxit v\u00e0 ng\u0103n ng\u1eeba r\u1ec9 s\u00e9t trong t\u01b0\u01a1ng lai.<\/p><p class=\"wp-block-paragraph\">\u0110\u1ecdc th\u00eam li\u00ean quan: <br><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/maintenance\/clean\/\">C\u00e1ch l\u00e0m s\u1ea1ch v\u00e0 \u0111\u00e1nh b\u00f3ng th\u00e9p kh\u00f4ng g\u1ec9: Lo\u1ea1i b\u1ecf r\u1ec9 s\u00e9t v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00e1c<\/a><br><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/maintenance\/scratches\/\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 lo\u1ea1i b\u1ecf v\u1ebft x\u01b0\u1edbc tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9?<\/a><\/p><h2 class=\"wp-block-heading\">Lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0o c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t nh\u1ea5t?<\/h2><p class=\"wp-block-paragraph\">Trong s\u1ed1 c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn, <strong>316<\/strong> V\u00e0 <strong>2205 song l\u1eadp<\/strong> th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t nh\u1ea5t. H\u00e0m l\u01b0\u1ee3ng molypden cao trong th\u00e9p kh\u00f4ng g\u1ec9 316 mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf \u0111\u1eb7c bi\u1ec7t, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng gi\u00e0u clorua.<\/p><h2 class=\"wp-block-heading\">Bi\u1ec3u \u0111\u1ed3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9<\/h2><p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 kh\u00e1c nhau v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee7a ch\u00fang trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau:<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>C\u1ea5p<\/td><td>Cr (%)<\/td><td>Ni(%)<\/td><td>M\u00d4 (%)<\/td><td>M\u00f4i tr\u01b0\u1eddng axit<\/td><td>M\u00f4i tr\u01b0\u1eddng ki\u1ec1m<\/td><td>N\u01b0\u1edbc m\u1eb7n\/clorua<\/td><td>\u1ee8ng d\u1ee5ng<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-304\/\">304 (18-8)<\/a><\/td><td>18<\/td><td>8<\/td><td>0<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c axit y\u1ebfu nh\u01b0 axit nitric)<\/td><td>Trung b\u00ecnh (ch\u1ecbu \u0111\u01b0\u1ee3c ki\u1ec1m y\u1ebfu)<\/td><td>T\u1ed1t (c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n r\u1ed7)<\/td><td>Ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-316\/\">316<\/td><td>16<\/td><td>10<\/td><td>2-3<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng l\u1ea1i l\u01b0u hu\u1ef3nh, clo)<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4i tr\u01b0\u1eddng ki\u1ec1m)<\/td><td>Tuy\u1ec7t v\u1eddi (kh\u00e1ng clorua t\u1ed1t)<\/td><td>Thi\u1ebft b\u1ecb y t\u1ebf, h\u00f3a ch\u1ea5t, h\u00e0ng h\u1ea3i<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-410\/\">410<\/td><td>12-13<\/td><td>0<\/td><td>0<\/td><td>Trung b\u00ecnh (ch\u1ecbu \u0111\u01b0\u1ee3c axit nh\u1eb9)<\/td><td>K\u00e9m (kh\u1ea3 n\u0103ng kh\u00e1ng ki\u1ec1m h\u1ea1n ch\u1ebf)<\/td><td>K\u00e9m (d\u1ec5 b\u1ecb r\u1ec9 s\u00e9t trong n\u01b0\u1edbc m\u1eb7n)<\/td><td>Dao k\u00e9o, d\u1ee5ng c\u1ee5, van<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-430\/\">\n430<\/td><td>16-18<\/td><td>0<\/td><td>0<\/td><td>Trung b\u00ecnh (ch\u1ecbu \u0111\u01b0\u1ee3c axit y\u1ebfu)<\/td><td>Trung b\u00ecnh (ch\u1ecbu \u0111\u01b0\u1ee3c ki\u1ec1m y\u1ebfu)<\/td><td>Trung b\u00ecnh (d\u1ec5 b\u1ecb r\u1ed7 do clorua)<\/td><td>Trang tr\u00ed \u00f4 t\u00f4, thi\u1ebft b\u1ecb nh\u00e0 b\u1ebfp<\/td><\/tr><tr><td>2205 (Song l\u1eadp)<\/td><td>22-23<\/td><td>4-6<\/td><td>3-5<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng l\u1ea1i axit m\u1ea1nh)<\/td><td>T\u1ed1t (ch\u1ed1ng ki\u1ec1m)<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng l\u1ea1i clorua)<\/td><td>D\u1ea7u kh\u00ed, h\u00f3a d\u1ea7u<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-630\/\">17-4 PH<\/td><td>15-17<\/td><td>3-5<\/td><td>0<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c axit y\u1ebfu)<\/td><td>Trung b\u00ecnh (ch\u1ecbu \u0111\u01b0\u1ee3c ki\u1ec1m y\u1ebfu)<\/td><td>Kh\u00e1 (kh\u00e1ng clorua \u1edf m\u1ee9c trung b\u00ecnh)<\/td><td>H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, van, b\u1ed9 ph\u1eadn b\u01a1m<\/td><\/tr><tr><td><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/grades\/grade-303\/\">303<\/td><td>17-19<\/td><td>8-10<\/td><td>0<\/td><td>Trung b\u00ecnh (kh\u00f4ng khuy\u1ebfn kh\u00edch s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh axit)<\/td><td>Trung b\u00ecnh (kh\u00e1ng ki\u1ec1m)<\/td><td>K\u00e9m (kh\u1ea3 n\u0103ng kh\u00e1ng clorua th\u1ea5p)<\/td><td>C\u00e1c b\u1ed9 ph\u1eadn gia c\u00f4ng, \u1ed1c v\u00edt<\/td><\/tr><tr><td>316L<\/td><td>16<\/td><td>10<\/td><td>2-3<\/td><td>Tuy\u1ec7t v\u1eddi (t\u01b0\u01a1ng t\u1ef1 nh\u01b0 316, v\u1edbi kh\u1ea3 n\u0103ng h\u00e0n t\u1ed1t h\u01a1n)<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4i tr\u01b0\u1eddng ki\u1ec1m)<\/td><td>Tuy\u1ec7t v\u1eddi (kh\u1ea3 n\u0103ng kh\u00e1ng clorua v\u01b0\u1ee3t tr\u1ed9i)<\/td><td>Y sinh, x\u1eed l\u00fd h\u00f3a h\u1ecdc<\/td><\/tr><tr><td>17-7<\/td><td>16-18<\/td><td>6-8<\/td><td>0<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c axit y\u1ebfu)<\/td><td>Trung b\u00ecnh (kh\u00e1ng ki\u1ec1m h\u1ea1n ch\u1ebf)<\/td><td>Kh\u00e1 (kh\u00e1ng clorua \u1edf m\u1ee9c trung b\u00ecnh)<\/td><td>L\u00f2 xo, b\u1ed9 ph\u1eadn c\u00f3 \u0111\u1ed9 b\u1ec1n cao<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 304 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h3><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 s\u1ed1 304 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 cao do c\u00f3 ch\u1ee9a crom, nh\u01b0ng v\u1eabn c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n trong m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc mu\u1ed1i, h\u00f3a ch\u1ea5t m\u1ea1nh ho\u1eb7c v\u1ec7 sinh kh\u00f4ng \u0111\u00fang c\u00e1ch. B\u1ea3o d\u01b0\u1ee1ng v\u00e0 ch\u0103m s\u00f3c th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ng\u1eeba g\u1ec9 s\u00e9t.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0103n m\u00f2n th\u00e9p th\u00f4ng th\u01b0\u1eddng kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">C\u00f3, khi th\u00e9p kh\u00f4ng g\u1ec9 ti\u1ebfp x\u00fac v\u1edbi th\u00e9p th\u01b0\u1eddng khi c\u00f3 h\u01a1i \u1ea9m, \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a c\u00f3 th\u1ec3 x\u1ea3y ra. Th\u00e9p kh\u00f4ng g\u1ec9 tr\u1edf th\u00e0nh c\u1ef1c \u00e2m v\u00e0 kh\u00f4ng b\u1ecb \u0103n m\u00f2n, nh\u01b0ng th\u00e9p th\u01b0\u1eddng, \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ef1c d\u01b0\u01a1ng, s\u1ebd b\u1ecb \u0103n m\u00f2n nhanh h\u01a1n. \u0110\u1ec3 ng\u0103n ng\u1eeba \u0111i\u1ec1u n\u00e0y, h\u00e3y \u0111\u1ea3m b\u1ea3o hai kim lo\u1ea1i kh\u00f4ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt c\u00e1ch ly nh\u01b0 v\u00f2ng \u0111\u1ec7m ho\u1eb7c l\u1edbp ph\u1ee7.<\/p><h2 class=\"wp-block-heading\">Lo\u1ea1i n\u00e0o ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n: Th\u00e9p kh\u00f4ng g\u1ec9 Austenitic hay Martensitic?<\/h2><p class=\"wp-block-paragraph\">Gi\u1ed1ng nh\u01b0 304 v\u00e0 316, <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/type\/austenitic\/\">th\u00e9p kh\u00f4ng g\u1ec9 austenit<\/a> c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n <a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/types\/martensite\/\">th\u00e9p kh\u00f4ng g\u1ec9 martensitic<\/a> gi\u1ed1ng nh\u01b0 410. Th\u00e9p austenit c\u00f3 h\u00e0m l\u01b0\u1ee3ng crom v\u00e0 niken cao h\u01a1n, gi\u00fap ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 ch\u1ee9a clorua.<\/p><h2 class=\"wp-block-heading\">Trang s\u1ee9c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">N\u00f3i chung l\u00e0 kh\u00f4ng. \u0110\u1ed3 trang s\u1ee9c b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u00e9p kh\u00f4ng g\u1ec9 304 ho\u1eb7c 316, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi. M\u1eb7c d\u00f9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng g\u1ec9 v\u1ed1n c\u00f3, nh\u01b0ng vi\u1ec7c ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi h\u00f3a ch\u1ea5t m\u1ea1nh ho\u1eb7c n\u01b0\u1edbc mu\u1ed1i c\u00f3 th\u1ec3 d\u1ea7n d\u1ea7n d\u1eabn \u0111\u1ebfn s\u1ef1 \u0111\u1ed5i m\u00e0u ho\u1eb7c x\u1ec9n m\u00e0u c\u1ee7a nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u t\u00ecnh tr\u1ea1ng n\u00e0y, vi\u1ec7c v\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o d\u01b0\u1ee1ng th\u00edch h\u1ee3p l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1eef nguy\u00ean v\u1ebb ngo\u00e0i ban \u0111\u1ea7u v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a ch\u00fang.<\/p><h2 class=\"wp-block-heading\">Kim lo\u1ea1i kh\u00e1c so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9<\/h2><figure class=\"wp-block-table\"><table><tbody><tr><td>V\u1eadt li\u1ec7u<\/td><td>M\u00f4i tr\u01b0\u1eddng axit<\/td><td>M\u00f4i tr\u01b0\u1eddng ki\u1ec1m<\/td><td>N\u01b0\u1edbc m\u1eb7n\/clorua<\/td><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n chung<\/td><td>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/td><\/tr><tr><td>Titan<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng l\u1ea1i h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i axit)<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng ki\u1ec1m)<\/td><td>Tuy\u1ec7t v\u1eddi (n\u1ed5i b\u1eadt trong n\u01b0\u1edbc bi\u1ec3n)<\/td><td>Xu\u1ea5t s\u1eafc<\/td><td>H\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, h\u00e0ng h\u1ea3i, c\u1ea5y gh\u00e9p y t\u1ebf<\/td><\/tr><tr><td>Nh\u00f4m<\/td><td>Trung b\u00ecnh (ch\u1ecbu \u0111\u01b0\u1ee3c axit y\u1ebfu, nh\u01b0ng c\u00f3 th\u1ec3 b\u1ecb r\u1ed7)<\/td><td>Trung b\u00ecnh (t\u1ed1t trong ki\u1ec1m nh\u1eb9)<\/td><td>T\u1ed1t (r\u1ed7 trong n\u01b0\u1edbc m\u1eb7n)<\/td><td>T\u1ed1t<\/td><td>\u0110\u00f3ng g\u00f3i, v\u1eadn chuy\u1ec3n, x\u00e2y d\u1ef1ng<\/td><\/tr><tr><td>Niken<\/td><td>Tuy\u1ec7t v\u1eddi (kh\u1ea3 n\u0103ng ch\u1ed1ng axit cao)<\/td><td>Tuy\u1ec7t v\u1eddi (r\u1ea5t b\u1ec1n v\u1edbi ki\u1ec1m)<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng n\u01b0\u1edbc bi\u1ec3n)<\/td><td>Xu\u1ea5t s\u1eafc<\/td><td>C\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, pin, \u0111i\u1ec7n t\u1eed<\/td><\/tr><tr><td>Thau<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c axit nh\u1eb9)<\/td><td>T\u1ed1t (c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n trong ki\u1ec1m m\u1ea1nh)<\/td><td>K\u00e9m (d\u1ec5 b\u1ecb kh\u1eed k\u1ebdm trong n\u01b0\u1edbc bi\u1ec3n)<\/td><td>V\u1eeba ph\u1ea3i<\/td><td>\u1ed0ng n\u01b0\u1edbc, \u0111\u1ed3 trang tr\u00ed, nh\u1ea1c c\u1ee5<\/td><\/tr><tr><td>\u0110\u1ed3ng<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c axit nh\u1eb9)<\/td><td>Trung b\u00ecnh (ch\u1ecbu \u0111\u01b0\u1ee3c ki\u1ec1m y\u1ebfu)<\/td><td>T\u1ed1t (t\u1ed1t h\u01a1n \u0111\u1ed3ng thau trong n\u01b0\u1edbc m\u1eb7n)<\/td><td>T\u1ed1t<\/td><td>Ph\u1ea7n c\u1ee9ng h\u00e0ng h\u1ea3i, v\u00f2ng bi, t\u00e1c ph\u1ea9m \u0111i\u00eau kh\u1eafc<\/td><\/tr><tr><td>Th\u00e9p m\u1ea1 k\u1ebdm<\/td><td>C\u00f4ng b\u1eb1ng (l\u1edbp k\u1ebdm cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 h\u1ea1n ch\u1ebf)<\/td><td>K\u00e9m (c\u00f3 th\u1ec3 b\u1ecb \u0103n m\u00f2n trong ki\u1ec1m m\u1ea1nh)<\/td><td>K\u00e9m (l\u1edbp k\u1ebdm b\u1ecb ph\u00e2n h\u1ee7y trong n\u01b0\u1edbc m\u1eb7n)<\/td><td>Trung b\u00ecnh (gi\u1edbi h\u1ea1n \u1edf m\u00f4i tr\u01b0\u1eddng kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi clorua)<\/td><td>X\u00e2y d\u1ef1ng, k\u1ebft c\u1ea5u ngo\u00e0i tr\u1eddi, h\u00e0ng r\u00e0o<\/td><\/tr><tr><td>Th\u00e9p kh\u00f4ng g\u1ec9 304<\/td><td>T\u1ed1t (ch\u1ecbu \u0111\u01b0\u1ee3c axit y\u1ebfu)<\/td><td>T\u1ed1t (kh\u00e1ng ki\u1ec1m \u1edf m\u1ee9c trung b\u00ecnh)<\/td><td>Trung b\u00ecnh (r\u1ed7 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 h\u00e0m l\u01b0\u1ee3ng clorua cao)<\/td><td>T\u1ed1t<\/td><td>Ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, \u0111\u1ed3 d\u00f9ng nh\u00e0 b\u1ebfp<\/td><\/tr><tr><td>Th\u00e9p kh\u00f4ng g\u1ec9 316<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng l\u1ea1i axit m\u1ea1nh)<\/td><td>T\u1ed1t (ch\u1ed1ng ki\u1ec1m)<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng l\u1ea1i clorua v\u00e0 n\u01b0\u1edbc bi\u1ec3n)<\/td><td>Xu\u1ea5t s\u1eafc<\/td><td>H\u00e0ng h\u1ea3i, ch\u1ebf bi\u1ebfn h\u00f3a ch\u1ea5t, thi\u1ebft b\u1ecb y t\u1ebf<\/td><\/tr><tr><td>Th\u00e9p kh\u00f4ng g\u1ec9 Duplex<\/td><td>Tuy\u1ec7t v\u1eddi (ch\u1ed1ng l\u1ea1i axit m\u1ea1nh)<\/td><td>T\u1ed1t (ch\u1ed1ng ki\u1ec1m)<\/td><td>Tuy\u1ec7t v\u1eddi (kh\u1ea3 n\u0103ng kh\u00e1ng clorua v\u01b0\u1ee3t tr\u1ed9i)<\/td><td>Xu\u1ea5t s\u1eafc<\/td><td>\u1ee8ng d\u1ee5ng d\u1ea7u kh\u00ed, h\u00e0ng h\u1ea3i, h\u00f3a ch\u1ea5t<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb oxy h\u00f3a kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">C\u00f3, th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 b\u1ecb oxy h\u00f3a. M\u1eb7c d\u00f9 n\u00f3 t\u1ea1o th\u00e0nh l\u1edbp oxit b\u1ea3o v\u1ec7 gi\u00fap ng\u0103n ng\u1eeba \u0103n m\u00f2n, nh\u01b0ng ti\u1ebfp x\u00fac v\u1edbi m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh, nh\u01b0 nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c h\u00f3a ch\u1ea5t m\u1ea1nh, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng h\u01b0 h\u1ecfng theo th\u1eddi gian.<\/p><h2 class=\"wp-block-heading\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb x\u1ec9n m\u00e0u kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 th\u1ec3 b\u1ecb x\u1ec9n m\u00e0u theo th\u1eddi gian, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t \u0111\u1ed9c h\u1ea1i, ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m ho\u1eb7c m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 m\u1eb7n cao. S\u1ef1 x\u1ec9n m\u00e0u th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng \u0111\u1ed5i m\u00e0u b\u1ec1 m\u1eb7t nh\u01b0ng c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf b\u1eb1ng c\u00e1ch v\u1ec7 sinh \u0111\u00fang c\u00e1ch. B\u1ea3o d\u01b0\u1ee1ng v\u00e0 v\u1ec7 sinh th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 x\u1ec9n m\u00e0u v\u00e0 gi\u1eef cho th\u00e9p kh\u00f4ng g\u1ec9 tr\u00f4ng nguy\u00ean s\u01a1.<\/p><p class=\"wp-block-paragraph\">\u0110\u1ecdc th\u00eam li\u00ean quan: <br><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/tarnish\/\">Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 b\u1ecb x\u1ec9n m\u00e0u hay phai m\u00e0u kh\u00f4ng?<\/a><br><a href=\"https:\/\/steelprogroup.com\/vi\/stainless-steel\/production\/polish\/\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u00e1nh b\u00f3ng th\u00e9p kh\u00f4ng g\u1ec9?<\/a><\/p><h2 class=\"wp-block-heading\">Th\u00e9p c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng?<\/h2><p class=\"wp-block-paragraph\">C\u00f3, th\u00e9p c\u00f3 th\u1ec3 b\u1ecb r\u1ec9 s\u00e9t. R\u1ec9 s\u00e9t x\u1ea3y ra khi s\u1eaft trong th\u00e9p ph\u1ea3n \u1ee9ng v\u1edbi \u0111\u1ed9 \u1ea9m v\u00e0 oxy, d\u1eabn \u0111\u1ebfn \u0103n m\u00f2n. \u0110i\u1ec1u n\u00e0y ph\u1ed5 bi\u1ebfn h\u01a1n \u1edf th\u00e9p cacbon, lo\u1ea1i th\u00e9p kh\u00f4ng c\u00f3 \u0111\u1eb7c t\u00ednh ch\u1ed1ng \u0103n m\u00f2n nh\u01b0 th\u00e9p kh\u00f4ng g\u1ec9.<\/p><h2 class=\"wp-block-heading\">Nh\u1eadn \u0111\u01b0\u1ee3c th\u00e9p kh\u00f4ng g\u1ec9 nh\u01b0 mong mu\u1ed1n!<\/h2><p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c lo\u1ea1i \u0103n m\u00f2n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 c\u00e1ch ng\u0103n ng\u1eeba, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u1ed5i th\u1ecd v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 c\u1ee7a m\u00ecnh. Cho d\u00f9 b\u1ea1n \u0111ang ch\u1ecdn th\u00e9p kh\u00f4ng g\u1ec9 cho m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p hay \u0111\u1ed3 trang s\u1ee9c, vui l\u00f2ng <a href=\"https:\/\/steelprogroup.com\/vi\/contact-us\/\">li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a>. L\u00e0 nh\u00e0 cung c\u1ea5p v\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p kh\u00f4ng g\u1ec9 chuy\u00ean nghi\u1ec7p, ch\u00fang t\u00f4i r\u1ea5t vui khi \u0111\u01b0\u1ee3c gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn s\u1ea3n ph\u1ea9m ph\u00f9 h\u1ee3p nh\u1ea5t!<\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00f3, nh\u01b0ng th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t \u0111\u1ed1i. N\u00f3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m th\u00e0nh ph\u1ea7n h\u1ee3p kim, s\u1eed d\u1ee5ng [\u2026]<\/p>","protected":false},"author":1,"featured_media":10771,"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":[4202,112],"tags":[],"class_list":["post-10778","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-properties","category-stainless-steel"],"acf":[],"_links":{"self":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10778","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=10778"}],"version-history":[{"count":0,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/posts\/10778\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media\/10771"}],"wp:attachment":[{"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/media?parent=10778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/categories?post=10778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/steelprogroup.com\/vi\/wp-json\/wp\/v2\/tags?post=10778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}