{"id":1093,"date":"2025-09-23T10:25:53","date_gmt":"2025-09-23T03:25:53","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-tu-a-z-cho-nguoi-bat-dau-ban-chat-phan-loai-va-chon-mua\/"},"modified":"2025-09-27T12:34:46","modified_gmt":"2025-09-27T05:34:46","slug":"inox-tu-a-z-cho-nguoi-bat-dau-ban-chat-phan-loai-va-chon-mua","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-tu-a-z-cho-nguoi-bat-dau-ban-chat-phan-loai-va-chon-mua\/","title":{"rendered":"Inox t\u1eeb A-Z cho ng\u01b0\u1eddi b\u1eaft \u0111\u1ea7u: b\u1ea3n ch\u1ea5t, ph\u00e2n lo\u1ea1i v\u00e0 ch\u1ecdn mua"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-buoc-dem-vung-chac-de-lam-chu-vat-lieu-inox\">B\u01b0\u1edbc \u0111\u1ec7m v\u1eefng ch\u1eafc \u0111\u1ec3 l\u00e0m ch\u1ee7 v\u1eadt li\u1ec7u inox<\/a><\/li>\n<li><a href=\"#toc-1-thep-khong-gi-la-gi-va-vi-sao-dang-tin-dung\">Th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 g\u00ec v\u00e0 v\u00ec sao \u0111\u00e1ng tin d\u00f9ng?<\/a><\/li>\n<li><a href=\"#toc-2-nhung-khia-canh-cot-loi-khi-lam-viec-voi-inox\">Nh\u1eefng kh\u00eda c\u1ea1nh c\u1ed1t l\u00f5i khi l\u00e0m vi\u1ec7c v\u1edbi inox<\/a><\/li>\n<li><a href=\"#toc-3-dao-sau-cac-chu-de-lien-quan\">\u0110\u00e0o s\u00e2u c\u00e1c ch\u1ee7 \u0111\u1ec1 li\u00ean quan<\/a><\/li>\n<li><a href=\"#toc-4-ung-dung-thuc-te-va-khuyen-nghi-chuyen-gia\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb chuy\u00ean gia<\/a><\/li>\n<li><a href=\"#toc-5-ket-luan-va-buoc-tiep-theo\">K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"toc-0-buoc-dem-vung-chac-de-lam-chu-vat-lieu-inox\">B\u01b0\u1edbc \u0111\u1ec7m v\u1eefng ch\u1eafc \u0111\u1ec3 l\u00e0m ch\u1ee7 v\u1eadt li\u1ec7u inox<\/h2>\n<p>B\u1ea1n \u0111ang c\u00e2n nh\u1eafc d\u00f9ng inox cho d\u1ef1 \u00e1n nh\u01b0ng ph\u00e2n v\u00e2n gi\u1eefa 201, 304, 316? \u0110\u00e3 t\u1eebng g\u1eb7p hi\u1ec7n t\u01b0\u1ee3ng \u201cr\u1ed7\u201d sau v\u00e0i th\u00e1ng ngo\u00e0i tr\u1eddi hay m\u1ed1i h\u00e0n \u0111\u1ed5i m\u00e0u, xu\u1ed1ng c\u1ea5p nhanh? Nh\u1eefng l\u1ed7i n\u00e0y kh\u00f4ng ch\u1ec9 t\u1ed1n chi ph\u00ed b\u1ea3o tr\u00ec m\u00e0 c\u00f2n k\u00e9o d\u00e0i ti\u1ebfn \u0111\u1ed9 v\u00e0 \u1ea3nh h\u01b0\u1edfng uy t\u00edn. V\u1ea5n \u0111\u1ec1 c\u1ed1t l\u00f5i th\u01b0\u1eddng n\u1eb1m \u1edf ch\u1ed7 hi\u1ec3u ch\u01b0a \u0111\u1ee7 v\u1ec1 b\u1ea3n ch\u1ea5t, gi\u1edbi h\u1ea1n v\u00e0 c\u00e1ch \u1ee9ng x\u1eed \u0111\u00fang v\u1edbi v\u1eadt li\u1ec7u. B\u00e0i vi\u1ebft n\u00e0y t\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng, c\u00f4 \u0111\u1ecdng v\u00e0 th\u1ef1c d\u1ee5ng v\u1ec1 inox d\u00e0nh cho k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u v\u00e0 ch\u1ee7 x\u01b0\u1edfng: t\u1eeb c\u01a1 ch\u1ebf ch\u1ed1ng g\u1ec9, ph\u00e2n lo\u1ea1i m\u00e1c, so s\u00e1nh v\u1edbi th\u00e9p th\u01b0\u1eddng, \u0111\u1ebfn c\u00e1ch ch\u1ecdn v\u1eadt li\u1ec7u theo m\u00f4i tr\u01b0\u1eddng, quy tr\u00ecnh gia c\u00f4ng \u2013 h\u00e0n \u2013 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t. B\u1ea1n s\u1ebd c\u00f3 b\u1ed9 ti\u00eau ch\u00ed r\u00f5 r\u00e0ng \u0111\u1ec3 ra quy\u1ebft \u0111\u1ecbnh nhanh, ch\u00ednh x\u00e1c, gi\u1ea3m r\u1ee7i ro v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi cho c\u00f4ng tr\u00ecnh hay d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h2 id=\"toc-1-thep-khong-gi-la-gi-va-vi-sao-dang-tin-dung\">Th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 g\u00ec v\u00e0 v\u00ec sao \u0111\u00e1ng tin d\u00f9ng?<\/h2>\n<p>Th\u00e9p kh\u00f4ng g\u1ec9 (inox) l\u00e0 h\u1ee3p kim n\u1ec1n s\u1eaft ch\u1ee9a t\u1ed1i thi\u1ec3u kho\u1ea3ng 10,5% Crom (Cr) v\u00e0 h\u00e0m l\u01b0\u1ee3ng Cacbon th\u1ea5p, t\u1ea1o n\u00ean l\u1edbp m\u00e0ng th\u1ee5 \u0111\u1ed9ng Cr2O3 m\u1ecfng, b\u00e1m ch\u1eb7t v\u00e0 t\u1ef1 t\u00e1i sinh khi b\u1ecb x\u01b0\u1edbc. Ch\u00ednh l\u1edbp m\u00e0ng n\u00e0y gi\u00fap inox ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi th\u00e9p th\u01b0\u1eddng. T\u00f9y m\u00e1c, inox c\u00f3 th\u1ec3 th\u00eam Niken (Ni), Molypden (Mo), Mangan (Mn), Nit\u01a1 (N)\u2026 \u0111\u1ec3 t\u1ed1i \u01b0u kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 do clorua, \u0111\u1ed9 d\u1ebbo, kh\u1ea3 n\u0103ng h\u00e0n v\u00e0 t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac.<\/p>\n<p>V\u00ec sao quan tr\u1ecdng?<br \/>\n&#8211; \u0110\u1ed9 b\u1ec1n \u0103n m\u00f2n: d\u00f9ng an to\u00e0n trong th\u1ef1c ph\u1ea9m, n\u01b0\u1edbc, m\u00f4i tr\u01b0\u1eddng \u1ea9m.<br \/>\n&#8211; V\u1ec7 sinh \u2013 th\u1ea9m m\u1ef9: b\u1ec1 m\u1eb7t s\u1ea1ch, d\u1ec5 b\u1ea3o tr\u00ec, nhi\u1ec1u ho\u00e0n thi\u1ec7n (2B, BA, No.4, HL, g\u01b0\u01a1ng).<br \/>\n&#8211; Tu\u1ed5i th\u1ecd \u2013 chi ph\u00ed v\u00f2ng \u0111\u1eddi: b\u1ec1n v\u1eefng h\u01a1n, gi\u1ea3m chi ph\u00ed thay th\u1ebf\/b\u1ea3o d\u01b0\u1ee1ng.<br \/>\n&#8211; H\u1ea1n ch\u1ebf: v\u1eabn c\u00f3 th\u1ec3 b\u1ecb r\u1ed7\/k\u1eb9t k\u1ebd trong m\u00f4i tr\u01b0\u1eddng clorua cao, nh\u1ea1y c\u1ea3m nhi\u1ec7t khi h\u00e0n n\u1ebfu ch\u1ecdn sai m\u00e1c ho\u1eb7c x\u1eed l\u00fd sai quy tr\u00ecnh.<\/p>\n<h2 id=\"toc-2-nhung-khia-canh-cot-loi-khi-lam-viec-voi-inox\">Nh\u1eefng kh\u00eda c\u1ea1nh c\u1ed1t l\u00f5i khi l\u00e0m vi\u1ec7c v\u1edbi inox<\/h2>\n<h3>1) Th\u00e0nh ph\u1ea7n \u2013 m\u00e1c th\u00f4ng d\u1ee5ng v\u00e0 \u00fd ngh\u0129a th\u1ef1c ti\u1ec5n<\/h3>\n<p>&#8211; 201: gi\u1ea3m Ni, th\u00eam Mn\/N; gi\u00e1 kinh t\u1ebf, ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t trong nh\u00e0 kh\u00f4 r\u00e1o. H\u1ea1n ch\u1ebf: ch\u1ed1ng r\u1ed7 k\u00e9m \u1edf m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n\/ho\u00e1 ch\u1ea5t.<br \/>\n&#8211; 304\/304L: \u0111a d\u1ee5ng nh\u1ea5t; c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng, b\u1ebfp c\u00f4ng nghi\u1ec7p, b\u1ed3n b\u1ec3. B\u1ea3n \u201cL\u201d gi\u1ea3m C \u0111\u1ec3 h\u00e0n t\u1ed1t, h\u1ea1n ch\u1ebf nh\u1ea1y c\u1ea3m h\u1ea1t.<br \/>\n&#8211; 316\/316L: th\u00eam ~2% Mo, ch\u1ed1ng r\u1ed7 clorua t\u1ed1t; th\u00edch h\u1ee3p ven bi\u1ec3n, x\u1eed l\u00fd n\u01b0\u1edbc, d\u01b0\u1ee3c \u2013 ho\u00e1 m\u1ef9 ph\u1ea9m.<br \/>\n&#8211; 430 (ferritic): kh\u00f4ng Ni, h\u00fat nam ch\u00e2m, gi\u00e1 t\u1ed1t; d\u00f9ng trang tr\u00ed trong nh\u00e0, \u1ed1ng kh\u00f3i, n\u1ed3i c\u01a1m. Ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n 304.<br \/>\n&#8211; 410\/420 (martensitic): c\u00f3 th\u1ec3 t\u00f4i c\u1ee9ng, d\u00f9ng cho dao, tr\u1ee5c, chi ti\u1ebft ch\u1ecbu m\u00e0i m\u00f2n; ch\u1ed1ng g\u1ec9 k\u00e9m h\u01a1n 304.<\/p>\n<h3>2) Vi c\u1ea5u tr\u00fac v\u00e0 t\u00ednh t\u1eeb<\/h3>\n<p>&#8211; Austenitic (304\/316): th\u01b0\u1eddng kh\u00f4ng h\u00fat nam ch\u00e2m, nh\u01b0ng c\u00f3 th\u1ec3 h\u01a1i h\u00fat sau gia c\u00f4ng ngu\u1ed9i do bi\u1ebfn c\u1ee9ng.<br \/>\n&#8211; Ferritic (430): h\u00fat nam ch\u00e2m, d\u1eabn nhi\u1ec7t t\u1ed1t h\u01a1n, h\u00e0n c\u1ea7n ki\u1ec3m so\u00e1t n\u1ee9t n\u00f3ng.<br \/>\n&#8211; Martensitic (410): h\u00fat nam ch\u00e2m, c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng cao sau nhi\u1ec7t luy\u1ec7n.<\/p>\n<h3>3) H\u00e0n, gia c\u00f4ng v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/h3>\n<p>&#8211; H\u00e0n: \u01b0u ti\u00ean que\/d\u00e2y 308L cho 304, 316L cho 316; ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0o \u0111\u1ec3 tr\u00e1nh v\u00f9ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t b\u1ecb nh\u1ea1y c\u1ea3m (450\u2013850\u00b0C).<br \/>\n&#8211; Sau h\u00e0n: t\u1ea9y m\u1ed1i h\u00e0n (pickling) v\u00e0 th\u1ee5 \u0111\u1ed9ng ho\u00e1 (passivation) \u0111\u1ec3 t\u00e1i t\u1ea1o m\u00e0ng Cr2O3; lo\u1ea1i b\u1ecf m\u00e0u nhi\u1ec7t v\u00e0 s\u1eaft t\u1ef1 do.<br \/>\n&#8211; Gia c\u00f4ng: d\u00f9ng d\u1ee5ng c\u1ee5 ri\u00eang cho inox, tr\u00e1nh nhi\u1ec5m b\u1ea9n th\u00e9p carbon; l\u00e0m s\u1ea1ch gi\u1eefa c\u00e1c b\u01b0\u1edbc.<\/p>\n<h3>4) Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 \u1ea3nh h\u01b0\u1edfng t\u1edbi \u0111\u1ed9 b\u1ec1n<\/h3>\n<p>&#8211; 2B: m\u1edd, \u0111a d\u1ee5ng.<br \/>\n&#8211; BA: s\u00e1ng b\u00f3ng, trang tr\u00ed\/thi\u1ebft b\u1ecb y t\u1ebf.<br \/>\n&#8211; No.4\/HL: x\u01b0\u1edbc hairline, m\u1eb7t d\u1ef1ng; c\u1ea7n r\u1eeda \u0111\u1ecbnh k\u1ef3 \u1edf khu v\u1ef1c bi\u1ec3n\/\u00f4 nhi\u1ec5m.<br \/>\n&#8211; G\u01b0\u01a1ng: th\u1ea9m m\u1ef9 cao nh\u01b0ng d\u1ec5 l\u1ed9 x\u01b0\u1edbc; y\u00eau c\u1ea7u v\u1ec7 sinh chu\u1ea9n.<\/p>\n<h3>5) Chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC)<\/h3>\n<p>Gi\u00e1 mua ban \u0111\u1ea7u c\u1ee7a 316 cao h\u01a1n 304, nh\u01b0ng \u1edf m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, 316 th\u01b0\u1eddng mang l\u1ea1i chi ph\u00ed v\u00f2ng \u0111\u1eddi th\u1ea5p h\u01a1n do gi\u1ea3m b\u1ea3o tr\u00ec v\u00e0 th\u1eddi gian ng\u1eebng m\u00e1y. Quy\u1ebft \u0111\u1ecbnh \u0111\u00fang m\u00e1c gi\u00fap t\u1ed1i \u01b0u TCO cho d\u1ef1 \u00e1n.<\/p>\n<h2 id=\"toc-3-dao-sau-cac-chu-de-lien-quan\">\u0110\u00e0o s\u00e2u c\u00e1c ch\u1ee7 \u0111\u1ec1 li\u00ean quan<\/h2>\n<p>L\u1ecbch s\u1eed ph\u00e1t minh inox cho th\u1ea5y v\u00ec sao v\u1eadt li\u1ec7u n\u00e0y tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n trong c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i; hi\u1ec3u b\u1ed1i c\u1ea3nh gi\u00fap b\u1ea1n \u0111\u00e1nh gi\u00e1 \u0111\u00fang vai tr\u00f2 c\u1ee7a n\u00f3 trong t\u1eebng \u1ee9ng d\u1ee5ng h\u00f4m nay.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/lich-su-ra-doi-cua-thep-khong-gi-phat-minh-thay-doi-the-gioi\/\" target=\"_blank\" rel=\"noopener noreferrer\">L\u1ecbch s\u1eed ra \u0111\u1eddi c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9: ph\u00e1t minh thay \u0111\u1ed5i th\u1ebf gi\u1edbi<\/a><\/p>\n<\/p>\n<\/div>\n<p>Sau c\u1ed9t m\u1ed1c l\u1ecbch s\u1eed, c\u1ed1t l\u00f5i c\u1ee7a \u201ckh\u00f4ng g\u1ec9\u201d n\u1eb1m \u1edf l\u1edbp m\u00e0ng th\u1ee5 \u0111\u1ed9ng Crom\u2014m\u1ecfng, b\u1ec1n, t\u1ef1 ch\u1eefa l\u00e0nh; n\u1eafm ch\u1eafc c\u01a1 ch\u1ebf n\u00e0y l\u00e0 ch\u00eca kh\u00f3a cho l\u1ef1a ch\u1ecdn m\u00e1c v\u00e0 quy tr\u00ecnh b\u1ea3o d\u01b0\u1ee1ng \u0111\u00fang.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/bi-mat-chong-gi-cua-inox-khoa-hoc-ve-lop-mang-crom-thu-dong\/\" target=\"_blank\" rel=\"noopener noreferrer\">B\u00ed m\u1eadt ch\u1ed1ng g\u1ec9 c\u1ee7a inox: khoa h\u1ecdc v\u1ec1 l\u1edbp m\u00e0ng crom th\u1ee5 \u0111\u1ed9ng<\/a><\/p>\n<\/p>\n<\/div>\n<p>\u0110\u1ec3 ra quy\u1ebft \u0111\u1ecbnh v\u1eadt li\u1ec7u, c\u1ea7n \u0111\u1eb7t inox c\u1ea1nh th\u00e9p carbon\/th\u00e9p h\u1ee3p kim th\u00f4ng th\u01b0\u1eddng v\u00e0 so s\u00e1nh t\u1eeb th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh, h\u00e0n, \u0111\u1ebfn chi ph\u00ed v\u00f2ng \u0111\u1eddi trong b\u1ed1i c\u1ea3nh d\u1ef1 \u00e1n Vi\u1ec7t Nam.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/inox-va-thep-thuong-khac-nhau-the-nao-so-sanh-chi-tiet-a-z\/\" target=\"_blank\" rel=\"noopener noreferrer\">Inox v\u00e0 Th\u00e9p th\u01b0\u1eddng kh\u00e1c nhau th\u1ebf n\u00e0o? So s\u00e1nh chi ti\u1ebft A\u2013Z<\/a><\/p>\n<\/p>\n<\/div>\n<p>Hi\u1ec7n t\u01b0\u1ee3ng \u201ch\u00fat nam ch\u00e2m\u201d khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi l\u1ea7m t\u01b0\u1edfng th\u1eadt\u2013gi\u1ea3; b\u1ea3n ch\u1ea5t l\u1ea1i \u0111\u1ebfn t\u1eeb vi c\u1ea5u tr\u00fac v\u00e0 m\u1ee9c bi\u1ebfn d\u1ea1ng ngu\u1ed9i, kh\u00f4ng ph\u1ea3i ti\u00eau ch\u00ed duy nh\u1ea5t \u0111\u1ec3 ph\u00e2n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/vi-sao-co-inox-hut-nam-cham-co-loai-lai-khong-cau-truc-nhan-biet\/\" target=\"_blank\" rel=\"noopener noreferrer\">V\u00ec sao c\u00f3 inox h\u00fat nam ch\u00e2m, c\u00f3 lo\u1ea1i l\u1ea1i kh\u00f4ng? C\u1ea5u tr\u00fac &#038; nh\u1eadn bi\u1ebft<\/a><\/p>\n<\/p>\n<\/div>\n<p>Nh\u00ecn \u1edf g\u00f3c \u0111\u1ed9 luy\u1ec7n kim, vi\u1ec7c ph\u00e2n lo\u1ea1i theo h\u1ecd Austenitic, Ferritic, Martensitic gi\u00fap b\u1ea1n d\u1ef1 \u0111o\u00e1n t\u00ednh t\u1eeb, kh\u1ea3 n\u0103ng h\u00e0n, v\u00e0 ph\u1ea1m vi \u1ee9ng d\u1ee5ng tr\u01b0\u1edbc khi ch\u1ed1t m\u00e1c c\u1ee5 th\u1ec3.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/phan-loai-thep-khong-gi-austenitic-ferritic-va-martensitic\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ph\u00e2n lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9: Austenitic, Ferritic v\u00e0 Martensitic<\/a><\/p>\n<\/p>\n<\/div>\n<p>C\u00f3 nh\u1eefng l\u1ea7m t\u01b0\u1edfng ph\u1ed5 bi\u1ebfn nh\u01b0 \u201cinox th\u00ec kh\u00f4ng bao gi\u1edd r\u1ec9\u201d hay \u201c304 d\u00f9ng t\u1ed1t \u1edf bi\u1ec3n\u201d; b\u00f3c t\u00e1ch sai l\u1ea7m gi\u00fap tr\u00e1nh chi ph\u00ed ph\u00e1t sinh v\u00e0 s\u1ef1 c\u1ed1 an to\u00e0n.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/top-5-lam-tuong-ve-inox-ri-set-nam-cham-201-vs-304\/\" target=\"_blank\" rel=\"noopener noreferrer\">Top 5 l\u1ea7m t\u01b0\u1edfng v\u1ec1 inox: r\u1ec9 s\u00e9t, nam ch\u00e2m, 201 vs 304<\/a><\/p>\n<\/p>\n<\/div>\n<p>Trong h\u1ed3 s\u01a1 k\u1ef9 thu\u1eadt, b\u1ea1n s\u1ebd g\u1eb7p SUS, AISI, ASTM, JIS; gi\u1ea3i m\u00e3 \u0111\u00fang k\u00fd hi\u1ec7u \u2013 ti\u00eau chu\u1ea9n \u0111\u1ea3m b\u1ea3o mua \u0111\u00fang m\u00e1c, \u0111\u00fang tr\u1ea1ng th\u00e1i c\u01a1 t\u00ednh v\u00e0 b\u1ec1 m\u1eb7t.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/giai-ma-sus-aisi-astm-jis-tren-inox-y-nghia-quy-doi-va-cach-dung\/\" target=\"_blank\" rel=\"noopener noreferrer\">Gi\u1ea3i m\u00e3 SUS, AISI, ASTM, JIS tr\u00ean inox: \u00fd ngh\u0129a, quy \u0111\u1ed5i v\u00e0 c\u00e1ch d\u00f9ng<\/a><\/p>\n<\/p>\n<\/div>\n<p>\u0110\u1eb7c t\u00ednh v\u1eadt l\u00fd nh\u01b0 \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 d\u1ebbo, gi\u00e3n n\u1edf nhi\u1ec7t quy\u1ebft \u0111\u1ecbnh c\u00e1ch thi\u1ebft k\u1ebf khe co gi\u00e3n, ch\u1ecdn que h\u00e0n v\u00e0 l\u1ecbch b\u1ea3o tr\u00ec; hi\u1ec3u s\u1ed1 li\u1ec7u gi\u00fap t\u00ednh to\u00e1n kh\u00f4ng \u201cv\u1ee1\u201d th\u1ef1c t\u1ebf.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/do-cung-do-deo-va-chiu-nhiet-cua-thep-khong-gi-huong-dan-chon-mac\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u0110\u1ed9 c\u1ee9ng, \u0111\u1ed9 d\u1ebbo v\u00e0 ch\u1ecbu nhi\u1ec7t c\u1ee7a th\u00e9p kh\u00f4ng g\u1ec9: h\u01b0\u1edbng d\u1eabn ch\u1ecdn m\u00e1c<\/a><\/p>\n<\/p>\n<\/div>\n<p>T\u1eeb qu\u1eb7ng \u0111\u1ebfn t\u1ea5m\/\u1ed1ng s\u00e1ng b\u00f3ng l\u00e0 c\u1ea3 chu\u1ed7i tinh luy\u1ec7n \u2013 c\u00e1n \u2013 \u1ee7 \u2013 t\u1ea9y \u2013 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t; h\u00ecnh dung \u0111\u01b0\u1ee3c quy tr\u00ecnh gi\u00fap b\u1ea1n ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/hanh-trinh-tam-inox-tu-quang-sat-tho-den-thanh-pham-sang-bong\/\" target=\"_blank\" rel=\"noopener noreferrer\">H\u00e0nh tr\u00ecnh t\u1ea5m inox: t\u1eeb qu\u1eb7ng s\u1eaft th\u00f4 \u0111\u1ebfn th\u00e0nh ph\u1ea9m s\u00e1ng b\u00f3ng<\/a><\/p>\n<\/p>\n<\/div>\n<p>Cu\u1ed1i c\u00f9ng, kh\u00eda c\u1ea1nh m\u00f4i tr\u01b0\u1eddng: kh\u1ea3 n\u0103ng t\u00e1i ch\u1ebf cao v\u00e0 tu\u1ed5i th\u1ecd d\u00e0i gi\u00fap inox tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn b\u1ec1n v\u1eefng khi t\u00ednh to\u00e0n b\u1ed9 v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n<div style=\"padding: 15px; border-left: 4px solid #0073aa; background-color: #f7f7f7; margin: 20px 0;\">\n<p style=\"margin: 0;\"><strong>\u27a1\ufe0f B\u00e0i vi\u1ebft chuy\u00ean s\u00e2u:<\/strong> <a href=\"https:\/\/inoxcuongthinh.com\/inox-co-than-thien-voi-moi-truong-lca-tai-che-va-cach-chon\/\" target=\"_blank\" rel=\"noopener noreferrer\">Inox c\u00f3 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng? LCA, t\u00e1i ch\u1ebf v\u00e0 c\u00e1ch ch\u1ecdn<\/a><\/p>\n<\/p><\/div>\n<\/p>\n<h2 id=\"toc-4-ung-dung-thuc-te-va-khuyen-nghi-chuyen-gia\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb chuy\u00ean gia<\/h2>\n<p>\u1ee8ng d\u1ee5ng ti\u00eau bi\u1ec3u t\u1ea1i Vi\u1ec7t Nam<br \/>\n&#8211; B\u1ebfp c\u00f4ng nghi\u1ec7p\/chu\u1ed7i F&#038;B: \u01b0u ti\u00ean 304\/304L, b\u1ec1 m\u1eb7t 2B ho\u1eb7c BA; h\u00e0n TIG, th\u1ee5 \u0111\u1ed9ng h\u00f3a sau h\u00e0n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o v\u1ec7 sinh.<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb n\u1ed9i \u0111\u1ecba: m\u1eb7t d\u1ef1ng, tay v\u1ecbn c\u00f3 m\u00e1i che d\u00f9ng 304 No.4\/HL; thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc t\u1ed1t, v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; Ven bi\u1ec3n\/kh\u00ed h\u1eadu mu\u1ed1i: lan can, bu l\u00f4ng, thi\u1ebft b\u1ecb x\u1eed l\u00fd n\u01b0\u1edbc d\u00f9ng 316\/316L; tr\u00e1nh b\u1ec1 m\u1eb7t qu\u00e1 th\u00f4, t\u0103ng l\u1ecbch r\u1eeda b\u1eb1ng n\u01b0\u1edbc ng\u1ecdt.<br \/>\n&#8211; Nhi\u1ec7t cao: 309\/310S cho l\u00f2 nung\/\u1ed1ng kh\u00f3i; \u0111\u00e1nh gi\u00e1 gi\u00e3n n\u1edf nhi\u1ec7t v\u00e0 oxy ho\u00e1 \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<br \/>\n&#8211; Chi ti\u1ebft c\u01a1 kh\u00ed m\u00e0i m\u00f2n: 410\/420 t\u00f4i c\u1ee9ng; b\u1ea3o v\u1ec7 kh\u1ecfi \u0103n m\u00f2n b\u1eb1ng d\u1ea7u m\u1ee1 ho\u1eb7c m\u1ea1\/thi\u1ebft k\u1ebf ch\u1ed1ng \u0111\u1ecdng n\u01b0\u1edbc.<\/p>\n<p>G\u1ee3i \u00fd ch\u1ecdn nhanh theo m\u00f4i tr\u01b0\u1eddng<br \/>\n&#8211; Trong nh\u00e0 kh\u00f4: 201 ho\u1eb7c 304.<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi n\u1ed9i \u0111\u1ecba: 304\/304L, ho\u00e0n thi\u1ec7n No.4\/HL, v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; Ven bi\u1ec3n\/ho\u00e1 ch\u1ea5t nh\u1eb9: 316\/316L, m\u1ed1i h\u00e0n th\u1ee5 \u0111\u1ed9ng h\u00f3a, h\u1ea1n ch\u1ebf khe k\u1ebd.<br \/>\n&#8211; Ti\u1ebfp x\u00fac clorua t\u1ea9y r\u1eeda: tr\u00e1nh Javen \u0111\u1eadm \u0111\u1eb7c; ch\u1ecdn 316 v\u00e0 thay b\u1eb1ng ch\u1ea5t t\u1ea9y trung t\u00ednh.<\/p>\n<p>Th\u1ef1c h\u00e0nh t\u1ed1t khi gia c\u00f4ng \u2013 l\u1eafp \u0111\u1eb7t<br \/>\n&#8211; D\u1ee5ng c\u1ee5 ri\u00eang cho inox, kh\u00f4ng d\u00f9ng chung v\u1edbi th\u00e9p carbon \u0111\u1ec3 tr\u00e1nh nhi\u1ec5m b\u1ea9n Fe.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t nhi\u1ec7t v\u00e0o khi h\u00e0n, d\u00f9ng v\u1eadt li\u1ec7u h\u00e0n ph\u00f9 h\u1ee3p (308L\/316L), l\u00e0m s\u1ea1ch m\u00e0u nhi\u1ec7t, th\u1ee5 \u0111\u1ed9ng h\u00f3a.<br \/>\n&#8211; Thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc, tr\u00e1nh khe k\u1ebd v\u00e0 b\u1ec1 m\u1eb7t gi\u1eef mu\u1ed1i\/b\u1ee5i.<br \/>\n&#8211; Ch\u1ecdn ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p: c\u00e0ng m\u1ecbn c\u00e0ng ch\u1ed1ng b\u00e1m b\u1ea9n t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<br \/>\n&#8211; L\u1eadp l\u1ecbch v\u1ec7 sinh b\u1eb1ng n\u01b0\u1edbc ng\u1ecdt v\u00e0 ch\u1ea5t t\u1ea9y kh\u00f4ng ch\u1ee9a clorua m\u1ea1nh.<\/p>\n<p>5 sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<br \/>\n&#8211; D\u00f9ng 304 cho h\u1ea1ng m\u1ee5c ven bi\u1ec3n kh\u00f4ng che ch\u1eafn v\u00e0 kh\u00f4ng v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; Tin r\u1eb1ng \u201ckh\u00f4ng h\u00fat nam ch\u00e2m = inox t\u1ed1t\u201d; b\u1ecf qua ch\u1ee9ng ch\u1ec9 m\u00e1c\/ti\u00eau chu\u1ea9n.<br \/>\n&#8211; Kh\u00f4ng x\u1eed l\u00fd passivation sau h\u00e0n; \u0111\u1ec3 l\u1ea1i m\u00e0u nhi\u1ec7t v\u00e0 s\u1eaft t\u1ef1 do g\u00e2y r\u1ec9 n\u00e2u.<br \/>\n&#8211; V\u1ec7 sinh b\u1eb1ng Javen\/Clorua \u0111\u1eadm \u0111\u1eb7c tr\u00ean b\u1ec1 m\u1eb7t x\u01b0\u1edbc, g\u00e2y r\u1ed7 nhanh.<br \/>\n&#8211; L\u1eabn t\u1ea1p th\u00e9p \u0111en trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, g\u00e2y \u0111i\u1ec3m kh\u1edfi ph\u00e1t \u0103n m\u00f2n.<\/p>\n<p>T\u00ecnh hu\u1ed1ng tham kh\u1ea3o ng\u1eafn<br \/>\n&#8211; Nh\u00e0 b\u1ebfp c\u00f4ng nghi\u1ec7p \u1edf H\u00e0 N\u1ed9i: chuy\u1ec3n 201 sang 304L, th\u00eam b\u01b0\u1edbc passivation sau h\u00e0n; chi ph\u00ed t\u0103ng 6% nh\u01b0ng gi\u1ea3m 70% s\u1ef1 c\u1ed1 \u1ed1 v\u00e0ng sau 12 th\u00e1ng.<br \/>\n&#8211; Lan can ven bi\u1ec3n: \u0111\u1ed5i 304 No.4 sang 316L BA, b\u1ed5 sung r\u1eeda n\u01b0\u1edbc ng\u1ecdt h\u00e0ng th\u00e1ng; t\u00ecnh tr\u1ea1ng r\u1ed7 do mu\u1ed1i gi\u1ea3m r\u00f5 r\u1ec7t sau m\u00f9a m\u01b0a b\u00e3o.<\/p>\n<h2 id=\"toc-5-ket-luan-va-buoc-tiep-theo\">K\u1ebft lu\u1eadn v\u00e0 b\u01b0\u1edbc ti\u1ebfp theo<\/h2>\n<p>N\u1eafm v\u1eefng b\u1ea3n ch\u1ea5t l\u1edbp m\u00e0ng Crom, ph\u00e2n lo\u1ea1i m\u00e1c v\u00e0 th\u1ef1c h\u00e0nh gia c\u00f4ng \u0111\u00fang l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 inox ph\u00e1t huy t\u1ed1i \u0111a \u0111\u1ed9 b\u1ec1n, t\u00ednh th\u1ea9m m\u1ef9 v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00f2ng \u0111\u1eddi. H\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c x\u00e1c \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c, ch\u1ecdn m\u00e1c ph\u00f9 h\u1ee3p (201\/304\/316\/430\/410), quy \u0111\u1ecbnh ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 quy tr\u00ecnh h\u00e0n \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a ngay trong h\u1ed3 s\u01a1 k\u1ef9 thu\u1eadt. C\u1ea7n t\u01b0 v\u1ea5n nhanh cho d\u1ef1 \u00e1n t\u1ea1i H\u00e0 N\u1ed9i v\u00e0 mi\u1ec1n B\u1eafc? Li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 k\u1ef9 s\u01b0 v\u1eadt li\u1ec7u \u0111\u1ec3 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb m\u00e1c, b\u1ec1 m\u1eb7t, ph\u01b0\u01a1ng \u00e1n gia c\u00f4ng v\u00e0 b\u00e1o gi\u00e1 t\u1ea5m, cu\u1ed9n, \u1ed1ng, h\u1ed9p, thanh inox theo ti\u00eau chu\u1ea9n ASTM\/JIS ph\u00f9 h\u1ee3p. Ti\u1ebfp t\u1ee5c kh\u00e1m ph\u00e1 c\u00e1c ch\u1ee7 \u0111\u1ec1 \u0111\u00e0o s\u00e2u \u1edf tr\u00ean \u0111\u1ec3 ho\u00e0n thi\u1ec7n b\u1ed9 ki\u1ebfn th\u1ee9c inox t\u1eeb A-Z v\u00e0 ra quy\u1ebft \u0111\u1ecbnh t\u1ef1 tin cho m\u1ecdi c\u00f4ng tr\u00ecnh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ea9m nang n\u1ec1n t\u1ea3ng cho k\u1ef9 s\u01b0 v\u00e0 ch\u1ee7 x\u01b0\u1edfng: hi\u1ec3u c\u01a1 ch\u1ebf ch\u1ed1ng g\u1ec9, ph\u00e2n lo\u1ea1i m\u00e1c inox ph\u1ed5 bi\u1ebfn, so s\u00e1nh v\u1edbi th\u00e9p th\u01b0\u1eddng, m\u1eb9o ch\u1ecdn mua v\u00e0 thi c\u00f4ng an to\u00e0n.<\/p>\n","protected":false},"author":7,"featured_media":1006,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1093","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1093","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=1093"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1093\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1006"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}