{"id":2420,"date":"2025-12-25T16:30:34","date_gmt":"2025-12-25T08:30:34","guid":{"rendered":"https:\/\/jblstainless.com\/?p=2420"},"modified":"2025-12-29T16:26:33","modified_gmt":"2025-12-29T08:26:33","slug":"nhung-nhuoc-diem-cua-thep-khong-gi-304-la-gi","status":"publish","type":"post","link":"https:\/\/jblstainless.com\/vi\/what-are-the-disadvantages-of-304-stainless-steel\/","title":{"rendered":"Nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 304 l\u00e0 g\u00ec?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2420\" class=\"elementor elementor-2420\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0d54cbe e-flex e-con-boxed e-con e-parent\" data-id=\"0d54cbe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9abf21a elementor-widget elementor-widget-text-editor\" data-id=\"9abf21a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/jblstainless.com\/vi\/can-316-stainless-steel-rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> l\u00e0 lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t v\u00e0 ti\u00eau bi\u1ec3u nh\u1ea5t. V\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, kh\u1ea3 n\u0103ng gia c\u00f4ng v\u00e0 kh\u1ea3 n\u0103ng h\u00e0n tuy\u1ec7t v\u1eddi, c\u00f9ng chi ph\u00ed t\u01b0\u01a1ng \u0111\u1ed1i h\u1ee3p l\u00fd, lo\u1ea1i th\u00e9p n\u00e0y \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 s\u1ea3n xu\u1ea5t, x\u00e2y d\u1ef1ng, y t\u1ebf v\u00e0 h\u00e0ng ti\u00eau d\u00f9ng. L\u00e0 m\u1ed9t v\u1eadt li\u1ec7u \u201cd\u00f9ng cho nhi\u1ec1u m\u1ee5c \u0111\u00edch\u201d, <a href=\"https:\/\/jblstainless.com\/vi\/can-316-stainless-steel-rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> d\u1ec5 b\u1ed9c l\u1ed9 nh\u1eefng h\u1ea1n ch\u1ebf c\u1ed1 h\u1eefu khi ph\u1ea3i ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t c\u1ee5 th\u1ec3 ho\u1eb7c c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh \u0111\u1eb7c bi\u1ec7t. Trong m\u00f4i tr\u01b0\u1eddng c\u00f3 ch\u1ee9a clo, c\u00e1c khu v\u1ef1c ven bi\u1ec3n ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, th\u00e9p 304 c\u00f3 th\u1ec3 b\u1ecb h\u01b0 h\u1ecfng nhanh h\u01a1n d\u1ef1 ki\u1ebfn, d\u1eabn \u0111\u1ebfn vi\u1ec7c ph\u1ea3i s\u1eeda ch\u1eefa l\u1ea1i, th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 chi ph\u00ed thay th\u1ebf t\u1ed1n k\u00e9m.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ea3a9d elementor-widget elementor-widget-text-editor\" data-id=\"8ea3a9d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/jblstainless.com\/vi\/can-316-stainless-steel-rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> l\u00e0 m\u1ed9t lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 austenit c\u00f3 th\u00e0nh ph\u1ea7n g\u1ed3m 18-20% cr\u00f4m v\u00e0 8-10,5% niken, t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp oxit cr\u00f4m th\u1ee5 \u0111\u1ed9ng tr\u00ean b\u1ec1 m\u1eb7t gi\u00fap ng\u0103n ch\u1eb7n oxy v\u00e0 \u0111\u1ed9 \u1ea9m, t\u1eeb \u0111\u00f3 ng\u0103n ng\u1eeba s\u1ef1 \u0103n m\u00f2n. Tuy nhi\u00ean, l\u1edbp th\u1ee5 \u0111\u1ed9ng n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 ho\u00e0n h\u1ea3o. Nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m ch\u00ednh c\u1ee7a <a href=\"https:\/\/jblstainless.com\/vi\/can-316-stainless-steel-rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n t\u1eadp trung v\u00e0o c\u00e1c l\u0129nh v\u1ef1c sau \u0111\u00e2y:<\/p><p>1. Kh\u1ea3 n\u0103ng b\u1ecb \u0103n m\u00f2n trong c\u00e1c m\u00f4i tr\u01b0\u1eddng h\u00f3a h\u1ecdc c\u1ee5 th\u1ec3 (\u0111\u1eb7c bi\u1ec7t l\u00e0 trong \u0111i\u1ec1u ki\u1ec7n c\u00f3 ch\u1ee9a clorua), nh\u1ea5t l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng n\u1ee9t do \u0103n m\u00f2n d\u01b0\u1edbi \u1ee9ng su\u1ea5t (SCC) g\u00e2y h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng;<\/p><p>2. Kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng h\u1ea1n ch\u1ebf trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, bao g\u1ed3m nguy c\u01a1 \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t do hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea1y c\u1ea3m h\u00f3a g\u00e2y ra, \u0111\u1ed9 b\u1ec1n tr\u01b0\u1ee3t kh\u00f4ng \u0111\u1ee7 v\u00e0 s\u1ef1 suy gi\u1ea3m c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1c01f7b e-flex e-con-boxed e-con e-parent\" data-id=\"1c01f7b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5f41b66 e-flex e-con-boxed e-con e-parent\" data-id=\"5f41b66\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8d7c787 elementor-widget elementor-widget-heading\" data-id=\"8d7c787\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9 304<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4f31ef2 e-flex e-con-boxed e-con e-parent\" data-id=\"4f31ef2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6adaccb elementor-widget elementor-widget-heading\" data-id=\"6adaccb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Nguy c\u01a1 \u0103n m\u00f2n l\u1ed7 r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf trong m\u00f4i tr\u01b0\u1eddng ch\u1ee9a clorua\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a52cf52 elementor-widget elementor-widget-text-editor\" data-id=\"a52cf52\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng ch\u1ee9a clorua (n\u01b0\u1edbc bi\u1ec3n, s\u01b0\u01a1ng mu\u1ed1i, dung d\u1ecbch ch\u1ed1ng \u0111\u00f3ng b\u0103ng\/r\u00e3 b\u0103ng), n\u1ed3ng \u0111\u1ed9 ion clorua cao c\u00f3 th\u1ec3 l\u00e0m suy y\u1ebfu l\u1edbp m\u00e0ng th\u1ee5 \u0111\u1ed9ng, d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng \u0103n m\u00f2n l\u1ed7 r\u1ed7 v\u00e0 \u0103n m\u00f2n khe h\u1edf.<\/p><p>Th\u00e9p 304 kh\u00f4ng ch\u1ee9a molypden (Mo) v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n r\u1ed7 v\u00e0 \u0103n m\u00f2n khe do clorua g\u00e2y ra k\u00e9m h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c h\u1ee3p kim c\u00f3 ch\u1ee9a molypden (nh\u01b0 lo\u1ea1i 316\/316L).<\/p><p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ph\u1ea3i ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi n\u01b0\u1edbc bi\u1ec3n, ch\u1ea5t t\u1ea9y r\u1eeda c\u00f3 ch\u1ee9a mu\u1ed1i ho\u1eb7c mu\u1ed1i l\u00e0m tan b\u0103ng tr\u00ean \u0111\u01b0\u1eddng, kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng th\u00e9p 304.\u00a0<\/p><p><b>C\u00e1c v\u1eadt li\u1ec7u thay th\u1ebf \u0111\u01b0\u1ee3c \u01b0u ti\u00ean<\/b>: Th\u00e9p kh\u00f4ng g\u1ec9 316\/316L, th\u00e9p kh\u00f4ng g\u1ec9 duplex\/si\u00eau austenit, ho\u1eb7c c\u00e1c b\u1ec1 m\u1eb7t c\u00f3 l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 chuy\u00ean d\u1ee5ng.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d63e8f7 e-flex e-con-boxed e-con e-parent\" data-id=\"d63e8f7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-16664bf elementor-widget elementor-widget-heading\" data-id=\"16664bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. N\u1ee9t do \u0103n m\u00f2n d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a clorua (Cl-SCC)\n\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4cef171 elementor-widget elementor-widget-text-editor\" data-id=\"4cef171\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y x\u1ea3y ra khi v\u1eadt li\u1ec7u 304 ph\u1ea3i ch\u1ecbu \u1ee9ng su\u1ea5t k\u00e9o (d\u00f9 l\u00e0 t\u1ea3i tr\u1ecdng t\u00e1c \u0111\u1ed9ng t\u1eeb b\u00ean ngo\u00e0i hay \u1ee9ng su\u1ea5t d\u01b0 b\u00ean trong) trong khi ti\u1ebfp x\u00fac v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n c\u1ee5 th\u1ec3 (ch\u1ee7 y\u1ebfu l\u00e0 m\u00f4i tr\u01b0\u1eddng ch\u1ea5t l\u1ecfng ch\u1ee9a clorua), d\u1eabn \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 lan r\u1ed9ng c\u1ee7a c\u00e1c v\u1ebft n\u1ee9t tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u.<\/p><p>D\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a \u1ee9ng su\u1ea5t k\u00e9o v\u00e0 trong m\u00f4i tr\u01b0\u1eddng ch\u1ee9a ion clorua, <a href=\"https:\/\/jblstainless.com\/vi\/can-316-stainless-steel-rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> d\u1ec5 b\u1ecb n\u1ee9t do \u0103n m\u00f2n d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a \u1ee9ng su\u1ea5t (\u0111\u1eb7c bi\u1ec7t nh\u1ea1y c\u1ea3m \u1edf nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh trong kho\u1ea3ng 50\u2013150\u00b0C).<\/p><p><b>C\u00e1c bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u<\/b>: Gi\u1ea3m \u1ee9ng su\u1ea5t d\u01b0 (th\u00f4ng qua c\u00e1c quy tr\u00ecnh k\u00e9o gi\u00e3n\/t\u00f4i\/\u1ee7 gi\u1ea3m \u1ee9ng su\u1ea5t ph\u00f9 h\u1ee3p), thi\u1ebft k\u1ebf \u0111\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 t\u00edch t\u1ee5 trong c\u00e1c khe h\u1edf, ho\u1eb7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u 316\/h\u00e0m l\u01b0\u1ee3ng l\u01b0u hu\u1ef3nh th\u1ea5p\/duplex.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3661a90 e-flex e-con-boxed e-con e-parent\" data-id=\"3661a90\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-acd4c31 elementor-widget elementor-widget-heading\" data-id=\"acd4c31\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. H\u00e0n \u1edf nhi\u1ec7t \u0111\u1ed9 cao g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t\n\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38e56b4 elementor-widget elementor-widget-text-editor\" data-id=\"38e56b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u1ede nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 425\u00b0C, qu\u00e1 tr\u00ecnh h\u00e0n \u1edf nhi\u1ec7t \u0111\u1ed9 cao g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng k\u1ebft t\u1ee7a cacbon t\u1ea1i c\u00e1c ranh gi\u1edbi h\u1ea1t, d\u1eabn \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh cacbua (qu\u00e1 tr\u00ecnh nh\u1ea1y c\u1ea3m h\u00f3a), t\u1eeb \u0111\u00f3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng nh\u1ea1y c\u1ea3m h\u00f3a v\u00e0 \u0103n m\u00f2n gi\u1eefa c\u00e1c h\u1ea1t.N\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i th\u00e9p c\u00f3 h\u00e0m l\u01b0\u1ee3ng carbon th\u1ea5p (304L) ho\u1eb7c kh\u00f4ng ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u01b0a v\u00e0o, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u1edf v\u00f9ng h\u00e0n\/v\u00f9ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t s\u1ebd b\u1ecb suy gi\u1ea3m.<\/p><p><b>Gi\u1ea3i ph\u00e1p<\/b>: S\u1eed d\u1ee5ng th\u00e9p 304L (h\u00e0m l\u01b0\u1ee3ng cacbon th\u1ea5p) cho c\u00e1c d\u1ef1 \u00e1n h\u00e0n, ho\u1eb7c ti\u1ebfn h\u00e0nh x\u1eed l\u00fd \u1ee7\/ph\u1ee7 th\u1ee5 \u0111\u1ed9ng sau \u0111\u00f3.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-40e4c26 e-flex e-con-boxed e-con e-parent\" data-id=\"40e4c26\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-46c422e elementor-widget elementor-widget-heading\" data-id=\"46c422e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t k\u00e9m h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p ch\u1ecbu nhi\u1ec7t chuy\u00ean d\u1ee5ng\n\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0e9ade elementor-widget elementor-widget-text-editor\" data-id=\"f0e9ade\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u1ede nhi\u1ec7t \u0111\u1ed9 cao (d\u00e0i h\u1ea1n &gt;800\u00b0C), th\u00e9p 304 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a, ch\u1ed1ng bi\u1ebfn d\u1ea1ng do nhi\u1ec7t v\u00e0 \u0111\u1ed9 b\u1ec1n gi\u1ea3m s\u00fat, \u0111\u1ed3ng th\u1eddi c\u00f3 nguy c\u01a1 bong tr\u00f3c l\u1edbp oxit cao h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i th\u00e9p ch\u1ecbu nhi\u1ec7t nh\u01b0 310\/316H\/309.<\/p><p><b>C\u00e1c l\u1ef1a ch\u1ecdn thay th\u1ebf \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/b>: S\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i h\u1ee3p kim 310, 309, 321 ho\u1eb7c c\u00e1c h\u1ee3p kim ch\u1ecbu nhi\u1ec7t chuy\u00ean d\u1ee5ng cho c\u00e1c \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 \u1ed1ng l\u00f2, thi\u1ebft b\u1ecb x\u1eed l\u00fd nhi\u1ec7t v\u00e0 h\u1ec7 th\u1ed1ng \u0111\u1ed1t ch\u00e1y.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b468f96 e-flex e-con-boxed e-con e-parent\" data-id=\"b468f96\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-459171d elementor-widget elementor-widget-heading\" data-id=\"459171d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5. Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ch\u1ed1ng va \u0111\u1eadp n\u00f3i chung \u1edf m\u1ee9c trung b\u00ecnh (v\u1eadt li\u1ec7u kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f07415 elementor-widget elementor-widget-text-editor\" data-id=\"5f07415\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Th\u00e9p kh\u00f4ng g\u1ec9 austenit (v\u00ed d\u1ee5: 304) c\u00f3 \u0111\u1ed9 b\u1ec1n m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c v\u1eadt li\u1ec7u h\u1ee3p kim ho\u1eb7c \u0111\u00e3 qua x\u1eed l\u00fd b\u1ec1 m\u1eb7t (v\u00ed d\u1ee5: h\u1ee3p kim \u0111\u00e3 qua x\u1eed l\u00fd nhi\u1ec7t, m\u1ea1 niken c\u1ee9ng, v.v.).<\/p><p><b>C\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ed1i ph\u00f3<\/b>: Ch\u1ecdn c\u00e1c v\u1eadt li\u1ec7u ch\u1ed1ng m\u00e0i m\u00f2n ho\u1eb7c l\u1edbp ph\u1ee7\/l\u1edbp l\u00f3t b\u1ec1 m\u1eb7t cho c\u00e1c \u1ee9ng d\u1ee5ng d\u1ec5 b\u1ecb m\u00e0i m\u00f2n.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7c73cc7 e-flex e-con-boxed e-con e-parent\" data-id=\"7c73cc7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c710d5c elementor-widget elementor-widget-heading\" data-id=\"c710d5c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">C\u00e1ch gi\u1ea3m thi\u1ec3u r\u1ee7i ro v\u00e0 t\u00ecm ra gi\u1ea3i ph\u00e1p<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc6f6e3 elementor-widget elementor-widget-text-editor\" data-id=\"fc6f6e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>T\u00ecm hi\u1ec3u v\u1ec1 nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a <a href=\"https:\/\/jblstainless.com\/vi\/can-316-stainless-steel-rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> gi\u00fap c\u00e1c k\u1ef9 s\u01b0 gi\u1ea3m thi\u1ec3u r\u1ee7i ro, trong khi vi\u1ec7c chuy\u1ec3n sang s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p h\u01a1n nh\u01b0 316 ho\u1eb7c 310 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd v\u00e0 gi\u1ea3m chi ph\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a66110b e-flex e-con-boxed e-con e-parent\" data-id=\"a66110b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b41b55 elementor-widget elementor-widget-heading\" data-id=\"7b41b55\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u d\u1ef1a tr\u00ean m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35445dd elementor-widget elementor-widget-text-editor\" data-id=\"35445dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc bi\u1ec3n, s\u01b0\u01a1ng mu\u1ed1i ho\u1eb7c m\u00f4i tr\u01b0\u1eddng c\u00f3 h\u00e0m l\u01b0\u1ee3ng clorua cao, n\u00ean \u01b0u ti\u00ean s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 lo\u1ea1i 316\/316L ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9 duplex.<\/li><li>\u0110\u1ed1i v\u1edbi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c v\u01b0\u1ee3t qu\u00e1 800\u00b0C, th\u00e9p 310\/309 ho\u1eb7c c\u00e1c h\u1ee3p kim ch\u1ecbu nhi\u1ec7t s\u1ebd ph\u00f9 h\u1ee3p h\u01a1n.<\/li><li>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u h\u00e0n m\u00e0 kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh \u1ee7, n\u00ean s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 304L ho\u1eb7c 316L k\u1ebft h\u1ee3p v\u1edbi qu\u00e1 tr\u00ecnh th\u1ee5 \u0111\u1ed9ng h\u00f3a sau h\u00e0n ho\u1eb7c ki\u1ec3m so\u00e1t l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u1ea7u v\u00e0o.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7c95d0f e-flex e-con-boxed e-con e-parent\" data-id=\"7c95d0f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5d698aa elementor-widget elementor-widget-heading\" data-id=\"5d698aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e518c2f elementor-widget elementor-widget-text-editor\" data-id=\"e518c2f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>C\u00f3 ph\u1ea3i <a href=\"https:\/\/jblstainless.com\/vi\/can-316-stainless-steel-rust\/\">Th\u00e9p kh\u00f4ng g\u1ec9 304<\/a> r\u1ec9 s\u00e9t g\u1ea7n bi\u1ec3n?<\/b><\/p>\n<p>A: Vi\u1ec7c ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi n\u01b0\u1edbc bi\u1ec3n ho\u1eb7c h\u01a1i mu\u1ed1i c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0103n m\u00f2n r\u1ed7, d\u1eabn \u0111\u1ebfn r\u1ec9 s\u00e9t; n\u00ean s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 lo\u1ea1i 316 ho\u1eb7c th\u00e9p kh\u00f4ng g\u1ec9 duplex.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9fa481e elementor-widget elementor-widget-text-editor\" data-id=\"9fa481e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao, ch\u00fang ta n\u00ean s\u1eed d\u1ee5ng lo\u1ea1i 310 hay 304?<\/b><\/p><p>A:\u00a0<a href=\"https:\/\/jblstainless.com\/vi\/which-is-better-stainless-steel-310-or-316\/\">Th\u00e9p kh\u00f4ng g\u1ec9 310<\/a> v\u01b0\u1ee3t tr\u1ed9i h\u01a1n so v\u1edbi th\u00e9p 304 trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao. H\u00e0m l\u01b0\u1ee3ng crom v\u00e0 niken cao h\u01a1n gi\u00fap lo\u1ea1i th\u00e9p n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a t\u1ed1t h\u01a1n v\u00e0 \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao cao h\u01a1n.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>304 stainless steel is the most widely used and representative stainless steel grade. With its excellent corrosion resistance, formability and weldability, and relatively economical cost, it is widely used in industries such as manufacturing, construction, healthcare, and consumer goods.However,in chlorine-containing atmospheres, coastal settings, or high-temperature applications, 304 may fail faster than expected, leading to rework, downtime, and costly replacements.<\/p>","protected":false},"author":1,"featured_media":794,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-2420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2420","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/comments?post=2420"}],"version-history":[{"count":10,"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2420\/revisions"}],"predecessor-version":[{"id":2433,"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/posts\/2420\/revisions\/2433"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/media\/794"}],"wp:attachment":[{"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/media?parent=2420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/categories?post=2420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jblstainless.com\/vi\/wp-json\/wp\/v2\/tags?post=2420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}