Th\u00e9p kh\u00f4ng g\u1ec9 201, m\u1ed9t v\u1eadt li\u1ec7u thay th\u1ebf t\u01b0\u01a1ng \u0111\u1ed1i r\u1ebb ti\u1ec1n cho th\u00e9p kh\u00f4ng g\u1ec9 304 truy\u1ec1n th\u1ed1ng. T\u1ea5m inox 201 c\u00f3 \u01b0u \u0111i\u1ec3m h\u01a1n so v\u1edbi c\u00e1c \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh l\u00e0 n\u00f3 s\u1eed d\u1ee5ng h\u00e0m l\u01b0\u1ee3ng Cr v\u00e0 niken \u00edt h\u01a1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn \u00edt l\u00e3ng ph\u00ed h\u01a1n trong vi\u1ec7c ch\u1ebf t\u1ea1o c\u00e1c m\u1ed1i n\u1ed1i c\u0169ng nh\u01b0 gi\u1ea3m gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t. M\u1eb7c d\u00f9 v\u1eady, t\u1ea5m th\u00e9p kh\u00f4ng g\u1ec9 v\u1eabn m\u1ea5t \u0111i m\u1ed9t s\u1ed1 \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 d\u1ebbo khi so s\u00e1nh v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 304.<\/p>\n
T\u1ea5m th\u00e9p kh\u00f4ng g\u1ec9 201 c\u00f3 h\u00e0m l\u01b0\u1ee3ng niken kho\u1ea3ng m\u1ed9t n\u1eeda so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 304. Thay v\u00e0o \u0111\u00f3, vonfram \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng nhi\u1ec1u h\u1ee3p kim b\u1ed5 sung nit\u01a1 v\u00e0 mangan. C\u00f3 th\u1ec3 s\u1ef1 \u0111\u00f3ng g\u00f3p t\u1ed5ng th\u1ec3 c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n h\u1ee3p kim n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng b\u1eb1ng t\u1ed5ng h\u00e0m l\u01b0\u1ee3ng niken nh\u01b0ng ch\u00fang ch\u1eafc ch\u1eafn \u0111\u00f3ng g\u00f3p m\u1ed9t c\u00e1ch kh\u00e1 \u0111\u00e1ng k\u1ec3. Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a v\u1eadt li\u1ec7u n\u00e0y l\u00e0 h\u00e0m l\u01b0\u1ee3ng crom 18% sau \u0111\u00e2y v\u00e0 h\u00e0m l\u01b0\u1ee3ng niken th\u1ea5p kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn s\u1ef1 c\u00e2n b\u1eb1ng v\u00e0 t\u1ea1o th\u00e0nh ferit, do \u0111\u00f3 h\u00e0m l\u01b0\u1ee3ng crom trong th\u00e9p kh\u00f4ng g\u1ec9 201 l\u00ean t\u1edbi 13,5% ~ 15%, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p xu\u1ed1ng t\u1edbi 13% ~ 14%, \u0111\u1ed9 \u0103n m\u00f2n c\u1ee7a n\u00f3 s\u1ee9c \u0111\u1ec1 kh\u00e1ng kh\u00f4ng \u0111\u01b0\u1ee3c so s\u00e1nh v\u1edbi 304 v\u00e0 c\u00e1c lo\u1ea1i th\u00e9p t\u01b0\u01a1ng t\u1ef1 kh\u00e1c. Ngo\u00e0i ra, mangan v\u00e0, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, \u0111\u1ed3ng l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng t\u00e1i th\u1ee5 \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n axit th\u01b0\u1eddng g\u1eb7p \u1edf c\u00e1c v\u1ecb tr\u00ed \u0103n m\u00f2n c\u1ee7a c\u1eb7n l\u1eafng v\u00e0 k\u1ebd n\u1ee9t. T\u1ed1c \u0111\u1ed9 ph\u00e1 h\u1ee7y c\u1ee7a th\u00e9p 201 trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n n\u00e0y g\u1ea5p kho\u1ea3ng 10-100 l\u1ea7n so v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 304. H\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh v\u00e0 carbon d\u01b0 trong th\u00e9p th\u01b0\u1eddng kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, ngay c\u1ea3 trong qu\u00e1 tr\u00ecnh t\u00e1i ch\u1ebf nguy\u00ean li\u1ec7u.<\/p>\n
S\u1ef1 thay \u0111\u1ed5i l\u1edbn x\u1ea3y ra trong th\u00e0nh ph\u1ea7n c\u1ee7a c\u00e1c lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 n\u00e0y l\u00e0 vi\u1ec7c thay th\u1ebf nit\u01a1 b\u1eb1ng mangan. H\u00e0m l\u01b0\u1ee3ng niken gi\u1ea3m t\u1eeb kho\u1ea3ng 20 % trong tr\u01b0\u1eddng h\u1ee3p 201 xu\u1ed1ng ch\u1ec9 c\u00f2n 7 % trong tr\u01b0\u1eddng h\u1ee3p th\u00e9p kh\u00f4ng g\u1ec9 304. \u0110i\u1ec1u n\u00e0y ch\u1ee7 y\u1ebfu l\u00e0 do vonfram \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng mangan. Ngo\u00e0i ra c\u00f2n c\u00f3 m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m kh\u00e1c, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u1ea3 hai nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y t\u1ea1o ra th\u00e9p kh\u00f4ng g\u1ec9 to\u00e0n di\u1ec7n r\u1ea5t hi\u1ec7u qu\u1ea3.<\/p>\n
Gi\u1ea3i ph\u00e1p thay th\u1ebf th\u00e9p kh\u00f4ng g\u1ec9 ti\u1ebfp theo xu\u1ea5t hi\u1ec7n trong v\u00e0i n\u0103m qua l\u00e0 s\u1eed d\u1ee5ng carbon thay cho nit\u01a1. Carbon c\u1ef1c k\u1ef3 c\u1ee9ng v\u00e0 b\u1ec1n. Nhi\u1ec1u thi\u1ebft b\u1ecb m\u1edbi s\u1eafp tung ra th\u1ecb tr\u01b0\u1eddng s\u1eed d\u1ee5ng carbon thay cho niken v\u00e0 \u0111i\u1ec1u n\u00e0y ch\u1ec9 v\u00ec l\u00fd do n\u00e0y m\u00e0 th\u00f4i. Carbon c\u00f2n l\u00e0m t\u0103ng \u0111\u1ed9 m\u1ec1m c\u1ee7a h\u1ee3p kim v\u00e0 \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng s\u1eed d\u1ee5ng nhi\u1ec1u \u0111i\u1ec7n nh\u01b0 b\u1ebfp n\u1ea5u, l\u00f2 vi s\u00f3ng. S\u1ef1 gia t\u0103ng \u0111\u1ed9 m\u1ec1m c\u0169ng c\u00f3 th\u1ec3 l\u00e0m cho hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb gia d\u1ee5ng n\u00e0y t\u1ed1t h\u01a1n nhi\u1ec1u.<\/p>\n
To\u00e0n b\u1ed9 th\u00e0nh ph\u1ea7n c\u1ee7a inox 201 b\u1ecb thay \u0111\u1ed5i khi thay th\u1ebf cacbon b\u1eb1ng mangan. \u0110i\u1ec1u n\u00e0y l\u00e0m cho h\u1ee3p kim c\u1ee9ng h\u01a1n, b\u1ec1n h\u01a1n v\u00e0 c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao h\u01a1n. C\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a h\u1ee3p kim n\u00e0y \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n do s\u1ef1 gia t\u0103ng c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 \u0111\u1ed9 d\u1eabn nhi\u1ec7t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Nh\u01b0 ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y, s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u1ea3 hai t\u1ea1o n\u00ean m\u1ed9t s\u1ef1 k\u1ebft h\u1ee3p ho\u00e0n h\u1ea3o. N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t b\u1ed9 b\u1ebfp ho\u00e0n to\u00e0n m\u1edbi ho\u1eb7c n\u1ebfu b\u1ea1n mu\u1ed1n thay th\u1ebf c\u00e1c d\u1ee5ng c\u1ee5 nh\u00e0 b\u1ebfp trong nh\u00e0 b\u1ebfp th\u00ec l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t l\u00e0 l\u1ef1a ch\u1ecdn th\u00e9p kh\u00f4ng g\u1ec9 201. Ch\u00fang t\u00f4i t\u1ef1 h\u00e0o v\u1ec1 vi\u1ec7c cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9 nh\u01b0 201, 304, 316 v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c. Khi m\u1edf m\u1ed9t d\u1ef1 \u00e1n th\u00e9p m\u1edbi, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i t\u00ecm ki\u1ebfm s\u1ea3n ph\u1ea9m ch\u1ea5t l\u01b0\u1ee3ng cao.<\/p>","protected":false},"excerpt":{"rendered":"
Th\u00e9p kh\u00f4ng g\u1ec9 201, m\u1ed9t v\u1eadt li\u1ec7u thay th\u1ebf t\u01b0\u01a1ng \u0111\u1ed1i r\u1ebb ti\u1ec1n cho th\u00e9p kh\u00f4ng g\u1ec9 304 truy\u1ec1n th\u1ed1ng. T\u1ea5m inox 201 c\u00f3 \u01b0u \u0111i\u1ec3m h\u01a1n so v\u1edbi c\u00e1c \u0111\u1ed1i th\u1ee7 c\u1ea1nh tranh l\u00e0 n\u00f3 s\u1eed d\u1ee5ng h\u00e0m l\u01b0\u1ee3ng Cr v\u00e0 niken \u00edt h\u01a1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn \u00edt l\u00e3ng ph\u00ed h\u01a1n trong vi\u1ec7c ch\u1ebf t\u1ea1o c\u00e1c m\u1ed1i n\u1ed1i c\u0169ng nh\u01b0 gi\u1ea3m chi ph\u00ed [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2189","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/comments?post=2189"}],"version-history":[{"count":1,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2189\/revisions"}],"predecessor-version":[{"id":2190,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2189\/revisions\/2190"}],"wp:attachment":[{"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/media?parent=2189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/categories?post=2189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wldstainless.com\/vi\/wp-json\/wp\/v2\/tags?post=2189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}