{"id":1561,"date":"2026-01-17T00:33:57","date_gmt":"2026-01-16T17:33:57","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/top-5-lam-tuong-ve-inox-su-that-ky-thuat-nguoi-moi-can-biet\/"},"modified":"2026-01-17T00:33:57","modified_gmt":"2026-01-16T17:33:57","slug":"top-5-lam-tuong-ve-inox-su-that-ky-thuat-nguoi-moi-can-biet","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/top-5-lam-tuong-ve-inox-su-that-ky-thuat-nguoi-moi-can-biet\/","title":{"rendered":"Top 5 l\u1ea7m t\u01b0\u1edfng v\u1ec1 inox: s\u1ef1 th\u1eadt k\u1ef9 thu\u1eadt ng\u01b0\u1eddi m\u1edbi c\u1ea7n bi\u1ebft"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-lam-tuong-1-inox-la-khong-ri-nen-se-khong-bao-gio-\">L\u1ea7m t\u01b0\u1edfng 1: \u201cInox l\u00e0 kh\u00f4ng r\u1ec9\u201d \u2013 n\u00ean s\u1ebd kh\u00f4ng bao gi\u1edd b\u1ecb \u0103n m\u00f2n<\/a><\/li>\n<li><a href=\"#toc-1-lam-tuong-2-inox-hut-nam-cham-la-hang-gia\">L\u1ea7m t\u01b0\u1edfng 2: \u201cInox h\u00fat nam ch\u00e2m l\u00e0 h\u00e0ng gi\u1ea3\u201d<\/a><\/li>\n<li><a href=\"#toc-2-lam-tuong-3-304-la-lua-chon-tot-nhat-cho-moi-ung-d\">L\u1ea7m t\u01b0\u1edfng 3: \u201c304 l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho m\u1ecdi \u1ee9ng d\u1ee5ng\u201d<\/a><\/li>\n<li><a href=\"#toc-3-lam-tuong-4-cu-day-la-ben-tang-do-day-la-giai-phap\">L\u1ea7m t\u01b0\u1edfng 4: \u201cC\u1ee9 d\u00e0y l\u00e0 b\u1ec1n \u2013 t\u0103ng \u0111\u1ed9 d\u00e0y l\u00e0 gi\u1ea3i ph\u00e1p ch\u1ea5t l\u01b0\u1ee3ng\u201d<\/a><\/li>\n<li><a href=\"#toc-4-lam-tuong-5-inox-khong-can-bao-tri-khong-can-xu-ly\">L\u1ea7m t\u01b0\u1edfng 5: \u201cInox kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec, kh\u00f4ng c\u1ea7n x\u1eed l\u00fd sau h\u00e0n\u201d<\/a><\/li>\n<li><a href=\"#toc-5-checklist-7-buoc-chon-inox-dung-ngay-tu-dau\">Checklist 7 b\u01b0\u1edbc ch\u1ecdn inox \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u<\/a><\/li>\n<li><a href=\"#toc-6-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/a><\/li>\n<li><a href=\"#toc-7-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) l\u00e0 v\u1eadt li\u1ec7u c\u1ed1t l\u00f5i trong c\u01a1 kh\u00ed, x\u00e2y d\u1ef1ng, ch\u1ebf t\u1ea1o, ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m\u2026 nh\u01b0ng ng\u01b0\u1eddi m\u1edbi th\u01b0\u1eddng b\u1ecb \u201c\u0111\u00e1nh l\u1eeba\u201d b\u1edfi v\u00e0i quan ni\u1ec7m truy\u1ec1n mi\u1ec7ng. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch 5 l\u1ea7m t\u01b0\u1edfng ph\u1ed5 bi\u1ebfn nh\u1ea5t, \u0111\u01b0a ra s\u1ef1 th\u1eadt k\u1ef9 thu\u1eadt, v\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb l\u1ef1a ch\u1ecdn \u2013 \u0111\u1ee7 \u0111\u1ec3 b\u1ea1n ra quy\u1ebft \u0111\u1ecbnh t\u1ef1 tin cho m\u1ecdi d\u1ef1 \u00e1n.<\/p>\n<h2 id=\"toc-0-lam-tuong-1-inox-la-khong-ri-nen-se-khong-bao-gio-\">L\u1ea7m t\u01b0\u1edfng 1: \u201cInox l\u00e0 kh\u00f4ng r\u1ec9\u201d \u2013 n\u00ean s\u1ebd kh\u00f4ng bao gi\u1edd b\u1ecb \u0103n m\u00f2n<\/h2>\n<h3>S\u1ef1 th\u1eadt k\u1ef9 thu\u1eadt<\/h3>\n<p>&#8211; \u201cKh\u00f4ng g\u1ec9\u201d ngh\u0129a l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n nh\u1edd l\u1edbp m\u00e0ng th\u1ee5 \u0111\u1ed9ng Cr2O3 h\u00ecnh th\u00e0nh khi h\u00e0m l\u01b0\u1ee3ng Cr \u2265 10,5%. N\u00f3 kh\u00f4ng ph\u1ea3i \u201cmi\u1ec5n nhi\u1ec5m \u0103n m\u00f2n\u201d.<br \/>\n&#8211; Inox v\u1eabn c\u00f3 th\u1ec3 b\u1ecb:<br \/>\n  + \u0102n m\u00f2n r\u1ed7\/pitting do ion Cl- (m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, h\u00f3a ch\u1ea5t t\u1ea9y r\u1eeda ch\u1ee9a chlorine).<br \/>\n  + \u0102n m\u00f2n k\u1ebd h\u1edf (crevice) t\u1ea1i khe gh\u00e9p, gio\u0103ng.<br \/>\n  + \u0102n m\u00f2n do nhi\u1ec5m b\u1ea9n s\u1eaft (Fe) trong gia c\u00f4ng, h\u00e0n.<br \/>\n  + \u201cTea staining\u201d (\u1ed1 n\u00e2u) \u1edf v\u00f9ng ven bi\u1ec3n d\u00f9 kim lo\u1ea1i ch\u01b0a th\u1ee7ng.<br \/>\n&#8211; Kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0\u1edbc l\u01b0\u1ee3ng b\u1eb1ng ch\u1ec9 s\u1ed1 PREN: PREN = %Cr + 3,3\u00d7%Mo + 16\u00d7%N. V\u00ed d\u1ee5:<br \/>\n  + 304 (\u224818Cr-8Ni-0Mo): PREN ~ 18\u201319<br \/>\n  + 316 (\u224817Cr-10Ni-2Mo): PREN ~ 24\u201326 \u2192 b\u1ec1n Cl- v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi 304<br \/>\n  + 201 (\u224816\u201317Cr, Ni th\u1ea5p, kh\u00f4ng Mo): PREN th\u1ea5p h\u01a1n 304 \u0111\u00e1ng k\u1ec3<\/p>\n<h3>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/h3>\n<p>&#8211; Lan can 304 \u1edf H\u1ea3i Ph\u00f2ng\/Qu\u1ea3ng Ninh d\u1ec5 \u201ctea staining\u201d sau 6\u201312 th\u00e1ng n\u1ebfu b\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u01b0\u1ee3c ho\u00e0n thi\u1ec7n t\u1ed1t v\u00e0 b\u1ea3o d\u01b0\u1ee1ng \u0111\u1ecbnh k\u1ef3. \u0110\u1ed5i sang 316\/316L v\u00e0 thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc t\u1ed1t, v\u1ec7 sinh \u0111\u00fang c\u00e1ch s\u1ebd h\u1ebft.<\/p>\n<h3>Khuy\u1ebfn ngh\u1ecb<\/h3>\n<p>&#8211; Ch\u1ecdn m\u00e1c theo m\u00f4i tr\u01b0\u1eddng: n\u1ed9i th\u1ea5t kh\u00f4 (201\/430), ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb (304), ven bi\u1ec3n\/Cl- (316\/2205).<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p (No.4\/BA\/No.8) v\u00e0 thi\u1ebft k\u1ebf h\u1ea1n ch\u1ebf k\u1ebd h\u1edf, \u0111\u1ecdng n\u01b0\u1edbc.<br \/>\n&#8211; L\u00e0m s\u1ea1ch \u0111\u1ecbnh k\u1ef3, passivation sau h\u00e0n\/gia c\u00f4ng.<\/p>\n<h2 id=\"toc-1-lam-tuong-2-inox-hut-nam-cham-la-hang-gia\">L\u1ea7m t\u01b0\u1edfng 2: \u201cInox h\u00fat nam ch\u00e2m l\u00e0 h\u00e0ng gi\u1ea3\u201d<\/h2>\n<h3>S\u1ef1 th\u1eadt k\u1ef9 thu\u1eadt<\/h3>\n<p>&#8211; T\u00ednh t\u1eeb ph\u1ee5 thu\u1ed9c c\u1ea5u tr\u00fac:<br \/>\n  + Austenitic (304\/316\/310) \u1edf tr\u1ea1ng th\u00e1i \u1ee7 th\u01b0\u1eddng kh\u00f4ng t\u1eeb t\u00ednh, nh\u01b0ng bi\u1ebfn c\u1ee9ng ngu\u1ed9i (c\u00e1n, u\u1ed1n) c\u00f3 th\u1ec3 sinh mactenxit \u2192 h\u01a1i h\u00fat nam ch\u00e2m.<br \/>\n  + Ferritic (430\/446) v\u00e0 Duplex (2205) l\u00e0 c\u00f3 t\u1eeb t\u00ednh t\u1ef1 nhi\u00ean nh\u01b0ng v\u1eabn l\u00e0 inox \u201cx\u1ecbn\u201d.<br \/>\n&#8211; V\u00ec v\u1eady, th\u1eed nam ch\u00e2m kh\u00f4ng th\u1ec3 k\u1ebft lu\u1eadn h\u00e0ng gi\u1ea3 hay th\u1eadt, c\u00e0ng kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u00e1c.<\/p>\n<h3>Khuy\u1ebfn ngh\u1ecb<\/h3>\n<p>&#8211; X\u00e1c minh m\u00e1c b\u1eb1ng ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u (Mill Test Certificate \u2013 MTC), ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n (XRF), ho\u1eb7c ki\u1ec3m \u0111\u1ecbnh theo ASTM\/EN.<br \/>\n&#8211; Ch\u1ea5p nh\u1eadn hi\u1ec7n t\u01b0\u1ee3ng \u201ch\u01a1i h\u00fat\u201d \u1edf 304\/316 sau t\u1ea1o h\u00ecnh; n\u1ebfu c\u1ea7n gi\u1ea3m, c\u00f3 th\u1ec3 \u1ee7 gi\u1ea3i \u1ee9ng su\u1ea5t.<\/p>\n<h2 id=\"toc-2-lam-tuong-3-304-la-lua-chon-tot-nhat-cho-moi-ung-d\">L\u1ea7m t\u01b0\u1edfng 3: \u201c304 l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho m\u1ecdi \u1ee9ng d\u1ee5ng\u201d<\/h2>\n<h3>S\u1ef1 th\u1eadt k\u1ef9 thu\u1eadt<\/h3>\n<p>&#8211; 304 l\u00e0 m\u00e1c \u201c\u0111a d\u1ee5ng\u201d, nh\u01b0ng kh\u00f4ng ph\u1ea3i \u201ct\u1ed1t nh\u1ea5t \u1edf m\u1ecdi n\u01a1i\u201d:<br \/>\n  &#8211; M\u00f4i tr\u01b0\u1eddng Cl- (bi\u1ec3n, h\u1ed3 b\u01a1i, t\u1ea9y r\u1eeda chlorine): \u01b0u ti\u00ean 316\/316L (c\u00f3 Mo ch\u1ed1ng r\u1ed7).<br \/>\n  &#8211; Nhi\u1ec7t \u0111\u1ed9 cao: d\u00f9ng 310\/309 (ch\u1ecbu oxy h\u00f3a t\u1ed1t h\u01a1n).<br \/>\n  &#8211; Y\u00eau c\u1ea7u b\u1ec1n cao, \u0103n m\u00f2n kh\u1eafc nghi\u1ec7t: Duplex 2205\/2507.<br \/>\n  &#8211; Trang tr\u00ed n\u1ed9i th\u1ea5t, kh\u00f4 r\u00e1o, chi ph\u00ed th\u1ea5p: 430 (ferritic) ho\u1eb7c 201 (ch\u1ec9 khi ki\u1ec3m so\u00e1t m\u00f4i tr\u01b0\u1eddng).<br \/>\n  &#8211; H\u00e0n t\u1ea5m d\u00e0y, gi\u1ea3m nh\u1ea1y c\u1ea3m k\u1ebft t\u1ee7a cacbit: d\u00f9ng 304L\/316L.<br \/>\n&#8211; Th\u1ef1c ph\u1ea9m: 304\/316 l\u00e0 ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn cho thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn, b\u1ed3n ch\u1ee9a, b\u1ebfp c\u00f4ng nghi\u1ec7p. 201 ch\u1ec9 n\u00ean d\u00f9ng n\u1ed9i th\u1ea5t kh\u00f4, kh\u00f4ng ti\u1ebfp x\u00fac mu\u1ed1i\/axit m\u1ea1nh, t\u1ea9y r\u1eeda kh\u1eafc nghi\u1ec7t.<\/p>\n<h3>V\u00ed d\u1ee5 l\u1ef1a ch\u1ecdn nhanh theo m\u00f4i tr\u01b0\u1eddng<\/h3>\n<p>&#8211; Ngo\u00e0i tr\u1eddi H\u00e0 N\u1ed9i, \u00edt Cl-: 304\/304L b\u1ec1 m\u1eb7t m\u1ecbn (2B\/BA), v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; Bi\u1ec3n \u0110\u1ed3 S\u01a1n\/C\u00e1t B\u00e0: 316\/316L, \u01b0u ti\u00ean m\u1ed1i h\u00e0n \u0111\u01b0\u1ee3c pickling + passivation, thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc.<br \/>\n&#8211; X\u01b0\u1edfng h\u00f3a ch\u1ea5t t\u1ea9y r\u1eeda: c\u00e2n nh\u1eafc 316L\/duplex, ki\u1ec3m tra SDS h\u00f3a ch\u1ea5t \u0111\u1ec3 ch\u1ecdn \u0111\u00fang.<\/p>\n<h2 id=\"toc-3-lam-tuong-4-cu-day-la-ben-tang-do-day-la-giai-phap\">L\u1ea7m t\u01b0\u1edfng 4: \u201cC\u1ee9 d\u00e0y l\u00e0 b\u1ec1n \u2013 t\u0103ng \u0111\u1ed9 d\u00e0y l\u00e0 gi\u1ea3i ph\u00e1p ch\u1ea5t l\u01b0\u1ee3ng\u201d<\/h2>\n<h3>S\u1ef1 th\u1eadt k\u1ef9 thu\u1eadt<\/h3>\n<p>&#8211; \u0110\u1ed9 b\u1ec1n kh\u00f4ng ch\u1ec9 do \u0111\u1ed9 d\u00e0y. Y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh g\u1ed3m: m\u00e1c th\u00e9p (th\u00e0nh ph\u1ea7n), tr\u1ea1ng th\u00e1i c\u01a1 t\u00ednh (\u1ee7\/nh\u1eb5n ngu\u1ed9i), ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n\/ho\u00e0n thi\u1ec7n, thi\u1ebft k\u1ebf.<br \/>\n&#8211; C\u01a1 t\u00ednh \u0111i\u1ec3n h\u00ecnh:<br \/>\n  + 304 \u1ee7: Re (yield) \u2248 205 MPa, Rm (tensile) \u2248 520 MPa.<br \/>\n  + 316 \u1ee7: t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 304.<br \/>\n  + Duplex 2205: Re \u2248 450\u2013500 MPa \u2192 c\u00f9ng \u0111\u1ed9 b\u1ec1n c\u00f3 th\u1ec3 gi\u1ea3m chi\u1ec1u d\u00e0y, nh\u1eb9 h\u01a1n m\u00e0 v\u1eabn c\u1ee9ng.<br \/>\n&#8211; \u0110\u1ed9 c\u1ee9ng v\u1eefng u\u1ed1n ph\u1ee5 thu\u1ed9c m\u00f4\u0111un \u0111\u00e0n h\u1ed3i (\u2248200 GPa v\u1edbi h\u1ea7u h\u1ebft inox) v\u00e0 h\u00ecnh h\u1ecdc. T\u0103ng b\u1ec1 m\u1eb7t nh\u1eb5n, g\u00e2n t\u0103ng c\u1ee9ng, ho\u1eb7c ch\u1ecdn m\u00e1c b\u1ec1n cao c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 h\u01a1n \u201c\u0111\u00f4n\u201d chi\u1ec1u d\u00e0y.<br \/>\n&#8211; T\u0103ng d\u00e0y kh\u00f4ng gi\u1ea3i quy\u1ebft \u0103n m\u00f2n r\u1ed7\/k\u1ebd h\u1edf do ch\u1ecdn sai m\u00e1c ho\u1eb7c ho\u00e0n thi\u1ec7n k\u00e9m.<\/p>\n<h3>Khuy\u1ebfn ngh\u1ecb<\/h3>\n<p>&#8211; T\u1ed1i \u01b0u theo m\u1ee5c ti\u00eau: b\u1ec1n c\u01a1 h\u1ecdc \u2192 c\u00e2n nh\u1eafc Duplex; ch\u1ed1ng r\u1ed7 \u2192 chuy\u1ec3n 304 sang 316 thay v\u00ec ch\u1ec9 t\u0103ng d\u00e0y.<br \/>\n&#8211; T\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf (g\u00e2n c\u1ee9ng, h\u00ecnh h\u1ecdc) \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t\/chi ph\u00ed t\u1ed1t nh\u1ea5t.<\/p>\n<h2 id=\"toc-4-lam-tuong-5-inox-khong-can-bao-tri-khong-can-xu-ly\">L\u1ea7m t\u01b0\u1edfng 5: \u201cInox kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec, kh\u00f4ng c\u1ea7n x\u1eed l\u00fd sau h\u00e0n\u201d<\/h2>\n<h3>S\u1ef1 th\u1eadt k\u1ef9 thu\u1eadt<\/h3>\n<p>&#8211; Nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng khi h\u00e0n t\u1ea1o \u201cheat tint\u201d (m\u00e0u v\u00e0ng\/xanh) \u2013 v\u00f9ng n\u00e0y l\u1edbp th\u1ee5 \u0111\u1ed9ng suy y\u1ebfu, d\u1ec5 r\u1ed7 n\u1ebfu kh\u00f4ng x\u1eed l\u00fd.<br \/>\n&#8211; Nhi\u1ec5m b\u1ea9n s\u1eaft t\u1eeb d\u1ee5ng c\u1ee5 th\u00e9p carbon s\u1ebd k\u00edch ho\u1ea1t g\u1ec9 n\u00e2u tr\u00ean b\u1ec1 m\u1eb7t inox.<br \/>\n&#8211; Trong m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n\/\u00f4 nhi\u1ec5m, b\u1ee5i mu\u1ed1i b\u00e1m l\u00e2u ng\u00e0y g\u00e2y \u201ctea staining\u201d n\u1ebfu kh\u00f4ng v\u1ec7 sinh.<\/p>\n<h3>Quy tr\u00ecnh khuy\u1ebfn ngh\u1ecb<\/h3>\n<p>&#8211; Sau h\u00e0n: pickling (t\u1ea9y m\u1ed1i h\u00e0n) + passivation theo ASTM A380\/A967 (d\u00f9ng dung d\u1ecbch nitric\/citric theo h\u01b0\u1edbng d\u1eabn an to\u00e0n).<br \/>\n&#8211; D\u1ee5ng c\u1ee5 gia c\u00f4ng chuy\u00ean d\u1ee5ng cho inox; tr\u00e1nh d\u00f9ng chung v\u1edbi th\u00e9p carbon.<br \/>\n&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3:<br \/>\n  + N\u1ed9i th\u1ea5t kh\u00f4: 3\u20136 th\u00e1ng\/l\u1ea7n b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch + x\u00e0 ph\u00f2ng trung t\u00ednh.<br \/>\n  + Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb: 1\u20133 th\u00e1ng\/l\u1ea7n.<br \/>\n  + Ven bi\u1ec3n\/h\u1ed3 b\u01a1i: 2\u20134 tu\u1ea7n\/l\u1ea7n, r\u1eeda tr\u00e1ng k\u1ef9 \u0111\u1ec3 lo\u1ea1i mu\u1ed1i.<br \/>\n&#8211; Tr\u00e1nh ch\u1ea5t t\u1ea9y ch\u1ee9a chloride \u0111\u1eadm \u0111\u1eb7c, axit m\u1ea1nh kh\u00f4ng ki\u1ec3m so\u00e1t. Lu\u00f4n tr\u00e1ng s\u1ea1ch v\u00e0 lau kh\u00f4.<\/p>\n<h2 id=\"toc-5-checklist-7-buoc-chon-inox-dung-ngay-tu-dau\">Checklist 7 b\u01b0\u1edbc ch\u1ecdn inox \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u<\/h2>\n<p>1) X\u00e1c \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng (kh\u00f4\/\u1ea9m, Cl-, nhi\u1ec7t, pH, h\u00f3a ch\u1ea5t).<br \/>\n2) Ch\u1ecdn m\u00e1c theo m\u00f4i tr\u01b0\u1eddng: 201\/430 (n\u1ed9i th\u1ea5t kh\u00f4), 304 (\u0111a d\u1ee5ng), 316 (Cl-), Duplex (b\u1ec1n cao\/kh\u1eafc nghi\u1ec7t).<br \/>\n3) Quy \u0111\u1ecbnh ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u: t\u1ea5m\/coil ASTM A240, \u1ed1ng ASTM A312, thanh A276 (ho\u1eb7c EN\/GB t\u01b0\u01a1ng \u0111\u01b0\u01a1ng).<br \/>\n4) Quy \u0111\u1ecbnh b\u1ec1 m\u1eb7t (2B\/BA\/No.4\/No.8) v\u00e0 y\u00eau c\u1ea7u ho\u00e0n thi\u1ec7n m\u1ed1i h\u00e0n (pickling + passivation).<br \/>\n5) Thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc, tr\u00e1nh k\u1ebd h\u1edf \u0111\u1ecdng b\u1ea9n; ch\u1ecdn ph\u1ee5 ki\u1ec7n t\u01b0\u01a1ng th\u00edch (tr\u00e1nh \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a).<br \/>\n6) Ki\u1ec3m so\u00e1t gia c\u00f4ng: d\u1ee5ng c\u1ee5 ri\u00eang, tr\u00e1nh nhi\u1ec5m Fe, ki\u1ec3m tra m\u00e1c b\u1eb1ng MTC\/XRF.<br \/>\n7) L\u1eadp l\u1ecbch b\u1ea3o d\u01b0\u1ee1ng ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng; h\u01b0\u1edbng d\u1eabn ch\u1ea5t t\u1ea9y r\u1eeda \u0111\u01b0\u1ee3c ph\u00e9p.<\/p>\n<h2 id=\"toc-6-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/h2>\n<p>&#8211; ASTM A240\/A240M \u2013 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip.<br \/>\n&#8211; ASTM A380\/A967 \u2013 Cleaning, Descaling, and Passivation of Stainless Steel Parts.<br \/>\n&#8211; Nickel Institute \u2013 Guidelines for the selection of stainless steels; Technical Series on Corrosion (nickelinstitute.org).<br \/>\n&#8211; Australian Stainless Steel Development Association (ASSDA) \u2013 Technical Bulletins on tea staining, grade selection (assda.asn.au).<br \/>\n&#8211; International Stainless Steel Forum (ISSF) \u2013 Stainless steel grades and applications (worldstainless.org).<br \/>\n&#8211; EN 10088 \u2013 Stainless steels \u2013 List of steels and composition.<\/p>\n<h2 id=\"toc-7-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Inox kh\u00f4ng ph\u1ea3i \u201cmi\u1ec5n nhi\u1ec5m \u0103n m\u00f2n\u201d; ch\u1ecdn m\u00e1c \u0111\u00fang v\u00e0 ho\u00e0n thi\u1ec7n chu\u1ea9n m\u1edbi b\u1ec1n l\u00e2u.<br \/>\n&#8211; Th\u1eed nam ch\u00e2m kh\u00f4ng ch\u1ee9ng minh \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng; h\u00e3y d\u1ef1a v\u00e0o ti\u00eau chu\u1ea9n v\u00e0 ch\u1ee9ng ch\u1ec9.<br \/>\n&#8211; 304 kh\u00f4ng ph\u00f9 h\u1ee3p m\u1ecdi n\u01a1i; 316\/duplex, 310\u2026 c\u00f3 vai tr\u00f2 ri\u00eang theo m\u00f4i tr\u01b0\u1eddng\/nhi\u1ec7t \u0111\u1ed9.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y kh\u00f4ng thay th\u1ebf \u0111\u01b0\u1ee3c m\u00e1c, thi\u1ebft k\u1ebf v\u00e0 quy tr\u00ecnh gia c\u00f4ng \u0111\u00fang.<br \/>\n&#8211; B\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3, pickling + passivation sau h\u00e0n l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ec3 gi\u1eef l\u1edbp th\u1ee5 \u0111\u1ed9ng kh\u1ecfe.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c, b\u1ec1 m\u1eb7t v\u00e0 gi\u1ea3i ph\u00e1p gia c\u00f4ng ph\u00f9 h\u1ee3p cho c\u00f4ng tr\u00ecnh t\u1ea1i H\u00e0 N\u1ed9i v\u00e0 mi\u1ec1n B\u1eafc? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c k\u1ef9 s\u01b0 c\u1ee7a ch\u00fang t\u00f4i h\u1ed7 tr\u1ee3 v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>G\u1ee1 5 l\u1ea7m t\u01b0\u1edfng v\u1ec1 inox: kh\u00f4ng bao gi\u1edd r\u1ec9, th\u1eed nam ch\u00e2m, 304 d\u00f9ng m\u1ecdi vi\u1ec7c, d\u00e0y l\u00e0 b\u1ec1n, kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec. K\u00e8m h\u01b0\u1edbng d\u1eabn ch\u1ecdn m\u00e1c v\u00e0 b\u1ea3o d\u01b0\u1ee1ng.<\/p>\n","protected":false},"author":7,"featured_media":1044,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1561","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\/1561","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=1561"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1561\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1044"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1561"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1561"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}