{"id":1883,"date":"2026-04-09T12:33:54","date_gmt":"2026-04-09T05:33:54","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/tieu-chuan-jis-sus304-sus201-sus316-dac-tinh-so-sanh-ung-dung\/"},"modified":"2026-04-09T12:33:54","modified_gmt":"2026-04-09T05:33:54","slug":"tieu-chuan-jis-sus304-sus201-sus316-dac-tinh-so-sanh-ung-dung","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/tieu-chuan-jis-sus304-sus201-sus316-dac-tinh-so-sanh-ung-dung\/","title":{"rendered":"Ti\u00eau chu\u1ea9n JIS: SUS304, SUS201, SUS316 \u2013 \u0111\u1eb7c t\u00ednh, so s\u00e1nh, \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-tong-quan-nhanh-ve-tieu-chuan-jis-cho-inox\">T\u1ed5ng quan nhanh v\u1ec1 ti\u00eau chu\u1ea9n JIS cho inox<\/a><\/li>\n<li><a href=\"#toc-1-phan-loai-thep-khong-gi-theo-jis\">Ph\u00e2n lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 theo JIS<\/a><\/li>\n<li><a href=\"#toc-2-cac-mac-inox-jis-pho-bien-va-thong-so-cot-loi\">C\u00e1c m\u00e1c inox JIS ph\u1ed5 bi\u1ebfn v\u00e0 th\u00f4ng s\u1ed1 c\u1ed1t l\u00f5i<\/a><\/li>\n<li><a href=\"#toc-3-doi-sanh-nhanh-jis-astmaisi-de-tra-cuu\">\u0110\u1ed1i s\u00e1nh nhanh JIS \u2013 ASTM\/AISI \u0111\u1ec3 tra c\u1ee9u<\/a><\/li>\n<li><a href=\"#toc-4-cach-chon-mac-inox-jis-theo-moi-truong-su-dung\">C\u00e1ch ch\u1ecdn m\u00e1c inox JIS theo m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-5-nhung-hieu-lam-thuong-gap-khi-chon-inox\">Nh\u1eefng hi\u1ec3u l\u1ea7m th\u01b0\u1eddng g\u1eb7p khi ch\u1ecdn inox<\/a><\/li>\n<li><a href=\"#toc-6-kiem-tra-va-xac-nhan-mac-vat-lieu-theo-jis\">Ki\u1ec3m tra v\u00e0 x\u00e1c nh\u1eadn m\u00e1c v\u1eadt li\u1ec7u theo JIS<\/a><\/li>\n<li><a href=\"#toc-7-yeu-cau-mua-hang-theo-jis-checklist-ngan\">Y\u00eau c\u1ea7u mua h\u00e0ng theo JIS: checklist ng\u1eafn<\/a><\/li>\n<li><a href=\"#toc-8-thong-so-ky-thuat-dien-hinh-tham-khao\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh (tham kh\u1ea3o)<\/a><\/li>\n<li><a href=\"#toc-9-nguon-tham-khao-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/a><\/li>\n<li><a href=\"#toc-10-tom-luoc-chon-mac-nhanh\">T\u00f3m l\u01b0\u1ee3c ch\u1ecdn m\u00e1c nhanh<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Ti\u00eau chu\u1ea9n JIS c\u1ee7a Nh\u1eadt B\u1ea3n l\u00e0 m\u1ed9t trong nh\u1eefng h\u1ec7 chu\u1ea9n inox quan tr\u1ecdng nh\u1ea5t b\u00ean c\u1ea1nh ASTM\/ASME. B\u00e0i vi\u1ebft n\u00e0y t\u1eadp trung gi\u1ea3i th\u00edch r\u00f5 JIS cho inox v\u00e0 \u0111i th\u1eb3ng v\u00e0o c\u00e1c m\u00e1c ph\u1ed5 bi\u1ebfn nh\u01b0 SUS304, SUS201, SUS316, SUS430\u2026 gi\u00fap k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u v\u00e0 x\u01b0\u1edfng c\u01a1 kh\u00ed ch\u1ecdn \u0111\u00fang v\u1eadt li\u1ec7u theo m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c v\u00e0 y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<h2 id=\"toc-0-tong-quan-nhanh-ve-tieu-chuan-jis-cho-inox\">T\u1ed5ng quan nhanh v\u1ec1 ti\u00eau chu\u1ea9n JIS cho inox<\/h2>\n<p>&#8211; Ph\u1ea1m vi ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; JIS G4303: Th\u00e9p kh\u00f4ng g\u1ec9 d\u1ea1ng thanh (bar).<br \/>\n  &#8211; JIS G4304: T\u1ea5m, l\u00e1, b\u0103ng c\u00e1n n\u00f3ng.<br \/>\n  &#8211; JIS G4305: T\u1ea5m, l\u00e1, b\u0103ng c\u00e1n ngu\u1ed9i.<br \/>\n  &#8211; Ngo\u00e0i ra c\u00f2n c\u00f3 ti\u00eau chu\u1ea9n \u1ed1ng, d\u00e2y\u2026 ri\u00eang (v\u00ed d\u1ee5 JIS G3459 cho \u1ed1ng inox d\u00f9ng cho nhi\u1ec7t \u0111\u1ed9 cao, JIS G3448 cho \u1ed1ng m\u1ecfng m\u1ee5c \u0111\u00edch chung).<br \/>\n&#8211; Quy \u01b0\u1edbc k\u00fd hi\u1ec7u: \u201cSUS\u201d + s\u1ed1 m\u00e1c (v\u00ed d\u1ee5 SUS304, SUS201). SUS l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Steel Use Stainless.<br \/>\n&#8211; N\u1ed9i dung k\u1ef9 thu\u1eadt ch\u00ednh c\u1ee7a JIS:<br \/>\n  &#8211; Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc (gi\u1edbi h\u1ea1n Cr, Ni, Mo, C, Mn, N\u2026).<br \/>\n  &#8211; C\u01a1 t\u00ednh t\u1ed1i thi\u1ec3u theo chi\u1ec1u d\u00e0y\/s\u1ea3n ph\u1ea9m (gi\u1edbi h\u1ea1n ch\u1ea3y, b\u1ec1n k\u00e9o, \u0111\u1ed9 gi\u00e3n d\u00e0i).<br \/>\n  &#8211; Y\u00eau c\u1ea7u v\u1ec1 b\u1ec1 m\u1eb7t, dung sai, th\u1eed nghi\u1ec7m.<br \/>\n&#8211; K\u00fd hi\u1ec7u ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t th\u00f4ng d\u1ee5ng theo JIS:<br \/>\n  &#8211; No.1 (c\u00e1n n\u00f3ng, t\u1ea9y), 2B (c\u00e1n ngu\u1ed9i m\u1edd), BA (\u1ee7 b\u00f3ng g\u01b0\u01a1ng), HL (Hairline), No.4 (x\u01b0\u1edbc m\u1ecbn).<\/p>\n<h2 id=\"toc-1-phan-loai-thep-khong-gi-theo-jis\">Ph\u00e2n lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 theo JIS<\/h2>\n<h3>Austenitic (SUS2xx\/SUS3xx)<\/h3>\n<p>&#8211; Kh\u00f4ng ho\u1eb7c r\u1ea5t \u00edt t\u1eeb t\u00ednh \u1edf tr\u1ea1ng th\u00e1i \u1ee7, th\u00e0nh ph\u1ea7n Cr-Ni (c\u00f3 th\u1ec3 th\u00eam Mo). H\u00e0n v\u00e0 t\u1ea1o h\u00ecnh t\u1ed1t, b\u1ec1n dai \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. M\u00e1c ti\u00eau bi\u1ec3u: SUS201, SUS304\/304L, SUS316\/316L, SUS301.<\/p>\n<h3>Ferritic (SUS4xx nh\u01b0 430, 439, 444)<\/h3>\n<p>&#8211; T\u1eeb t\u00ednh, ch\u1ec9 ch\u1ee9a Cr (Ni r\u1ea5t th\u1ea5p\/kh\u00f4ng ch\u1ee7 \u00fd), ch\u1ed1ng r\u1ed7 k\u00e9m h\u01a1n 304 nh\u01b0ng d\u00e3n n\u1edf nhi\u1ec7t th\u1ea5p, ch\u1ecbu \u0103n m\u00f2n \u1ee9ng su\u1ea5t clorua t\u1ed1t h\u01a1n austenitic, gi\u00e1 h\u1ee3p l\u00fd.<\/p>\n<h3>Martensitic (SUS410, 420J2)<\/h3>\n<p>&#8211; C\u00f3 th\u1ec3 t\u00f4i ram \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng cao, ch\u1ed1ng \u0103n m\u00f2n m\u1ee9c trung b\u00ecnh. D\u00f9ng cho dao k\u00e9o, chi ti\u1ebft ch\u1ecbu m\u00e0i m\u00f2n.<\/p>\n<h3>Duplex (SUS329J1, 329J4L)<\/h3>\n<p>&#8211; Vi c\u1ea5u tr\u00fac hai pha ferrite\u2013austenite; c\u01b0\u1eddng \u0111\u1ed9 cao, ch\u1ed1ng r\u1ed7\/ch\u1ebb t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng clorua. D\u00f9ng cho h\u00f3a ch\u1ea5t, d\u1ea7u kh\u00ed, n\u01b0\u1edbc bi\u1ec3n.<\/p>\n<h2 id=\"toc-2-cac-mac-inox-jis-pho-bien-va-thong-so-cot-loi\">C\u00e1c m\u00e1c inox JIS ph\u1ed5 bi\u1ebfn v\u00e0 th\u00f4ng s\u1ed1 c\u1ed1t l\u00f5i<\/h2>\n<h3>SUS304 (JIS G4304\/G4305)<\/h3>\n<p>&#8211; Th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh: Cr kho\u1ea3ng 18\u201320%, Ni 8.0\u201310.5%, C \u22640.08% c\u00f9ng gi\u1edbi h\u1ea1n P, S, Mn, Si theo JIS.<br \/>\n&#8211; \u0110\u1eb7c t\u00ednh: Ch\u1ed1ng \u0103n m\u00f2n \u0111a d\u1ee5ng, h\u00e0n\/t\u1ea1o h\u00ecnh t\u1ed1t. Th\u01b0\u1eddng kh\u00f4ng nhi\u1ec5m t\u1eeb \u1edf tr\u1ea1ng th\u00e1i \u1ee7 (c\u00f3 th\u1ec3 nhi\u1ec5m nh\u1eb9 sau gia c\u00f4ng ngu\u1ed9i).<br \/>\n&#8211; \u1ee8ng d\u1ee5ng: B\u1ed3n b\u1ec3 th\u1ef1c ph\u1ea9m, k\u1ebft c\u1ea5u ki\u1ebfn tr\u00fac, \u1ed1ng c\u00f4ng nghi\u1ec7p, \u0111\u1ed3 gia d\u1ee5ng cao c\u1ea5p, s\u00e0n thao t\u00e1c, lan can.<br \/>\n&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n: ASTM\/AISI 304 (ASTM A240\/A276 lo\u1ea1i 304).<\/p>\n<h3>SUS304L<\/h3>\n<p>&#8211; Gi\u1ed1ng 304 nh\u01b0ng C \u22640.03% \u0111\u1ec3 ch\u1ed1ng \u0103n m\u00f2n k\u1ebd h\u1ea1t sau h\u00e0n; khuy\u1ebfn ngh\u1ecb cho k\u1ebft c\u1ea5u h\u00e0n d\u00e0y v\u00e0 b\u1ed3n b\u1ec3 ch\u1ebf bi\u1ebfn.<br \/>\n&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n: 304L (ASTM A240\/A276).<\/p>\n<h3>SUS316<\/h3>\n<p>&#8211; Th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh: Cr kho\u1ea3ng 16\u201318%, Ni ~10\u201314%, Mo ~2.0\u20133.0%; C \u22640.08%.<br \/>\n&#8211; \u0110\u1eb7c t\u00ednh: Mo t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7\/pitting v\u00e0 k\u1ebd do clorua (Cl-), t\u1ed1t h\u01a1n 304 \u1edf m\u00f4i tr\u01b0\u1eddng bi\u1ec3n\/h\u00f3a ch\u1ea5t nh\u1eb9.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng: Thi\u1ebft b\u1ecb b\u1edd bi\u1ec3n, x\u1eed l\u00fd n\u01b0\u1edbc, d\u01b0\u1ee3c ph\u1ea9m, F&#038;B, h\u00f3a ch\u1ea5t nh\u1eb9.<br \/>\n&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n: 316 (ASTM A240\/A276).<\/p>\n<h3>SUS316L<\/h3>\n<p>&#8211; C \u22640.03% \u0111\u1ec3 t\u1ed1i \u01b0u ch\u1ed1ng \u0103n m\u00f2n sau h\u00e0n; \u01b0u ti\u00ean cho b\u1ed3n b\u1ec3, \u0111\u01b0\u1eddng \u1ed1ng h\u00e0n trong c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c.<br \/>\n&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n: 316L (ASTM A240\/A276).<\/p>\n<h3>SUS201<\/h3>\n<p>&#8211; Austenitic Ni th\u1ea5p (kho\u1ea3ng 3.5\u20135.5% Ni) b\u00f9 b\u1eb1ng Mn\/N (Mn th\u01b0\u1eddng ~5.5\u20137.5%); Cr ~16\u201318%.<br \/>\n&#8211; \u0110\u1eb7c t\u00ednh: C\u01b0\u1eddng \u0111\u1ed9 cao h\u01a1n 304 sau c\u00e1n ngu\u1ed9i; gi\u00e1 th\u1ea5p do \u00edt Ni. Ch\u1ed1ng \u0103n m\u00f2n k\u00e9m h\u01a1n 304, nh\u1ea1y r\u1ed7 trong m\u00f4i tr\u01b0\u1eddng clorua\/axit y\u1ebfu. T\u1eeb t\u00ednh r\u1ea5t th\u1ea5p \u0111\u1ebfn nh\u1eb9 t\u00f9y tr\u1ea1ng th\u00e1i gia c\u00f4ng.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng: \u1ed0ng trang tr\u00ed trong nh\u00e0, n\u1ed9i th\u1ea5t, gia d\u1ee5ng kh\u00f4ng ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t\/m\u01b0a axit; kh\u00f4ng khuy\u1ebfn ngh\u1ecb g\u1ea7n bi\u1ec3n\/ngo\u00e0i tr\u1eddi kh\u1eafc nghi\u1ec7t.<br \/>\n&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n: AISI 201.<\/p>\n<h3>SUS430<\/h3>\n<p>&#8211; Ferritic, Cr ~16\u201318%, Ni kh\u00f4ng ch\u1ee7 \u00fd. T\u1eeb t\u00ednh r\u00f5.<br \/>\n&#8211; \u0110\u1eb7c t\u00ednh: Ch\u1ed1ng \u0103n m\u00f2n trung b\u00ecnh (kh\u00f4, trong nh\u00e0), d\u00e3n n\u1edf nhi\u1ec7t th\u1ea5p h\u01a1n austenitic, gi\u00e1 c\u1ea1nh tranh. H\u1ea1n ch\u1ebf trong m\u00f4i tr\u01b0\u1eddng clorua v\u00e0 h\u00e0n d\u00e0y.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng: T\u1ea5m \u1ed1p n\u1ed9i th\u1ea5t, thi\u1ebft b\u1ecb gia d\u1ee5ng, chi ti\u1ebft trang tr\u00ed trong nh\u00e0, \u1ed1ng kh\u00f3i nh\u1eb9.<br \/>\n&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n: 430 (ASTM A240\/A276).<\/p>\n<h3>SUS410 \/ SUS420J2<\/h3>\n<p>&#8211; Martensitic Cr ~11.5\u201313.5% (410, C th\u1ea5p) v\u00e0 Cr ~12\u201314% (420J2, C cao ~0.26\u20130.40%).<br \/>\n&#8211; \u0110\u1eb7c t\u00ednh: T\u00f4i ram \u0111\u1ea1t \u0111\u1ed9 c\u1ee9ng, ch\u1ecbu m\u00e0i m\u00f2n; ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p\u2013trung b\u00ecnh, h\u00e0n kh\u00f3 h\u01a1n.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng: Dao k\u00e9o, khu\u00f4n, tr\u1ee5c b\u01a1m, chi ti\u1ebft c\u01a1 kh\u00ed ch\u1ecbu m\u00e0i m\u00f2n.<\/p>\n<h3>SUS439 \/ SUS444 (ferritic cao c\u1ea5p)<\/h3>\n<p>&#8211; 439: Cr ~17\u201319%, \u1ed5n \u0111\u1ecbnh b\u1eb1ng Ti\/Nb; h\u00e0n t\u1ed1t, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u0103n m\u00f2n \u1ee9ng su\u1ea5t t\u1ed1t h\u01a1n 430.<br \/>\n&#8211; 444: Cr ~17.5\u201319.5% + Mo ~1.8\u20132.5%, ch\u1ed1ng r\u1ed7 clorua ti\u1ec7m c\u1eadn 316 \u1edf n\u01b0\u1edbc n\u00f3ng\/clorua; t\u1eeb t\u00ednh.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng: B\u1ed3n n\u01b0\u1edbc n\u00f3ng NLMT, h\u1ec7 HVAC, b\u1ed3n ch\u1ee9a, \u00f4 t\u00f4 x\u1ea3.<\/p>\n<h2 id=\"toc-3-doi-sanh-nhanh-jis-astmaisi-de-tra-cuu\">\u0110\u1ed1i s\u00e1nh nhanh JIS \u2013 ASTM\/AISI \u0111\u1ec3 tra c\u1ee9u<\/h2>\n<p>&#8211; SUS201 \u2248 AISI 201 (ASTM A240 lo\u1ea1i 201).<br \/>\n&#8211; SUS304\/SUS304L \u2248 304\/304L (ASTM A240\/A276).<br \/>\n&#8211; SUS316\/SUS316L \u2248 316\/316L (ASTM A240\/A276).<br \/>\n&#8211; SUS430 \u2248 430 (ASTM A240\/A276).<br \/>\n&#8211; SUS410 \u2248 410; SUS420J2 \u2248 420 (ASTM A276 cho thanh\/th\u00e9p d\u1ee5ng c\u1ee5 kh\u00f4ng g\u1ec9).<br \/>\nGhi ch\u00fa: Gi\u1edbi h\u1ea1n th\u00e0nh ph\u1ea7n v\u00e0 c\u01a1 t\u00ednh gi\u1eefa JIS v\u00e0 ASTM c\u00f3 kh\u00e1c bi\u1ec7t nh\u1ecf; lu\u00f4n \u0111\u1ed1i chi\u1ebfu theo ti\u00eau chu\u1ea9n \u0111\u1eb7t h\u00e0ng c\u1ee5 th\u1ec3.<\/p>\n<h2 id=\"toc-4-cach-chon-mac-inox-jis-theo-moi-truong-su-dung\">C\u00e1ch ch\u1ecdn m\u00e1c inox JIS theo m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng<\/h2>\n<p>&#8211; N\u1ed9i th\u1ea5t kh\u00f4, \u00edt \u0103n m\u00f2n (lan can trong nh\u00e0, \u0111\u1ed3 gia d\u1ee5ng): SUS201 ho\u1eb7c SUS430. \u01afu ti\u00ean 430 n\u1ebfu c\u1ea7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh m\u00e0u trong m\u00f4i tr\u01b0\u1eddng \u1ea9m nh\u1eb9; \u01b0u ti\u00ean 201 n\u1ebfu c\u1ea7n austenitic \u0111\u1ec3 t\u1ea1o h\u00ecnh s\u00e2u.<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb, m\u00e1i che, k\u1ebft c\u1ea5u m\u1ecfng: SUS304\/304L. B\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 h\u1ea1n ch\u1ebf b\u00e1m b\u1ea9n v\u00e0 r\u1ed7 nh\u1eb9 do clorua\/b\u1ee5i.<br \/>\n&#8211; G\u1ea7n bi\u1ec3n, m\u00f4i tr\u01b0\u1eddng clorua, n\u01b0\u1edbc mu\u1ed1i, h\u00f3a ch\u1ea5t nh\u1eb9: SUS316\/316L ho\u1eb7c SUS444 (n\u01b0\u1edbc n\u00f3ng\/clorua). D\u00f9ng 316L cho m\u1ed1i h\u00e0n d\u00e0y.<br \/>\n&#8211; Th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c ph\u1ea9m, b\u1ed3n b\u1ec3 v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng h\u00e0n: SUS304L cho m\u00f4i tr\u01b0\u1eddng th\u00f4ng th\u01b0\u1eddng; SUS316L n\u1ebfu c\u00f3 clorua\/h\u00f3a ch\u1ea5t.<br \/>\n&#8211; Nhi\u1ec7t \u0111\u1ed9 cao\/kh\u00ed x\u1ea3: C\u00e2n nh\u1eafc SUS409\/430\/439 cho \u00f4 t\u00f4, 310S\/309S cho nhi\u1ec7t r\u1ea5t cao (kh\u00f4ng ph\u1ed5 bi\u1ebfn trong d\u00e2n d\u1ee5ng).<br \/>\n&#8211; Dao k\u00e9o, chi ti\u1ebft c\u1ea7n \u0111\u1ed9 c\u1ee9ng: SUS420J2 (t\u00f4i ram).<\/p>\n<h2 id=\"toc-5-nhung-hieu-lam-thuong-gap-khi-chon-inox\">Nh\u1eefng hi\u1ec3u l\u1ea7m th\u01b0\u1eddng g\u1eb7p khi ch\u1ecdn inox<\/h2>\n<p>&#8211; \u201cD\u00f9ng nam ch\u00e2m l\u00e0 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c 304 v\u00e0 201\u201d: Sai m\u1ed9t ph\u1ea7n. 304 c\u00f3 th\u1ec3 nhi\u1ec5m t\u1eeb nh\u1eb9 sau c\u00e1n ngu\u1ed9i\/h\u00e0n, c\u00f2n 201 \u1edf tr\u1ea1ng th\u00e1i \u1ee7 g\u1ea7n nh\u01b0 kh\u00f4ng h\u00fat nam ch\u00e2m. Th\u1eed nam ch\u00e2m ch\u1ec9 tham kh\u1ea3o.<br \/>\n&#8211; \u201c316 lu\u00f4n s\u00e1ng b\u00f3ng h\u01a1n 304\u201d: \u0110\u1ed9 b\u00f3ng ph\u1ee5 thu\u1ed9c ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t (2B\/BA\/HL\/No.4), kh\u00f4ng ph\u1ee5 thu\u1ed9c m\u00e1c.<br \/>\n&#8211; \u201c201 d\u00f9ng ngo\u00e0i tr\u1eddi kh\u00f4ng v\u1ea5n \u0111\u1ec1\u201d: 201 d\u1ec5 r\u1ed7 \u1edf m\u00f4i tr\u01b0\u1eddng m\u01b0a axit\/bi\u1ec3n. D\u00f9ng 304\/316 s\u1ebd an to\u00e0n h\u01a1n.<\/p>\n<h2 id=\"toc-6-kiem-tra-va-xac-nhan-mac-vat-lieu-theo-jis\">Ki\u1ec3m tra v\u00e0 x\u00e1c nh\u1eadn m\u00e1c v\u1eadt li\u1ec7u theo JIS<\/h2>\n<p>&#8211; H\u1ed3 s\u01a1 ch\u1ea5t l\u01b0\u1ee3ng:<br \/>\n  &#8211; MTC (Mill Test Certificate) th\u1ec3 hi\u1ec7n m\u00e1c JIS, ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng (JIS G4305\/G4304\u2026), ph\u00e2n t\u00edch h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh, l\u00f4 s\u1ea3n xu\u1ea5t.<br \/>\n  &#8211; CO\/CQ t\u1eeb nh\u00e0 cung c\u1ea5p \u0111\u1ec3 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c v\u1ec1 h\u1ea3i quan v\u00e0 n\u1ed9i b\u1ed9 ch\u1ea5t l\u01b0\u1ee3ng.<br \/>\n&#8211; Th\u1eed nghi\u1ec7m t\u1ea1i ch\u1ed7:<br \/>\n  &#8211; PMI b\u1eb1ng XRF \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh Cr\/Ni\/Mo (ph\u00e2n bi\u1ec7t 304\/201\/316 ch\u00ednh x\u00e1c).<br \/>\n  &#8211; Thu\u1ed1c th\u1eed Mo (spot test) \u0111\u1ec3 nh\u1eadn bi\u1ebft 316 (c\u00f3 Mo) so v\u1edbi 304 (kh\u00f4ng Mo).<br \/>\n  &#8211; Ki\u1ec3m tra b\u1ec1 m\u1eb7t\/\u0111\u1ed9 d\u00e0y\/dung sai theo JIS; x\u00e1c nh\u1eadn ho\u00e0n thi\u1ec7n 2B\/BA\/No.1\/HL v\u00e0 l\u1edbp b\u1ea3o v\u1ec7 PVC n\u1ebfu c\u00f3.<\/p>\n<h2 id=\"toc-7-yeu-cau-mua-hang-theo-jis-checklist-ngan\">Y\u00eau c\u1ea7u mua h\u00e0ng theo JIS: checklist ng\u1eafn<\/h2>\n<p>&#8211; M\u00e1c v\u00e0 ti\u00eau chu\u1ea9n: V\u00ed d\u1ee5 \u201cSUS304 theo JIS G4305\u201d.<br \/>\n&#8211; D\u1ea1ng v\u00e0 ho\u00e0n thi\u1ec7n: T\u1ea5m 2B\/BA\/No.1\/HL; \u1ed1ng h\u00e0n\/\u0111\u00fac; thanh vu\u00f4ng\/tr\u00f2n; b\u0103ng cu\u1ed9n.<br \/>\n&#8211; K\u00edch th\u01b0\u1edbc v\u00e0 dung sai: Chi\u1ec1u d\u00e0y, kh\u1ed5, dung sai \u0111\u1ed9 d\u00e0y\/\u0111\u1ed9 ph\u1eb3ng theo JIS.<br \/>\n&#8211; Y\u00eau c\u1ea7u h\u00e0n\/gia c\u00f4ng: \u01afu ti\u00ean L-grade cho k\u1ebft c\u1ea5u h\u00e0n; y\u00eau c\u1ea7u pickling\/passivation sau h\u00e0n n\u1ebfu m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n.<br \/>\n&#8211; T\u00e0i li\u1ec7u: MTC + CO\/CQ; \u0111i\u1ec1u ki\u1ec7n giao h\u00e0ng, \u0111\u00f3ng g\u00f3i, b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-8-thong-so-ky-thuat-dien-hinh-tham-khao\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh (tham kh\u1ea3o)<\/h2>\n<p>&#8211; SUS304 t\u1ea5m c\u00e1n ngu\u1ed9i: JIS quy \u0111\u1ecbnh c\u01a1 t\u00ednh t\u1ed1i thi\u1ec3u theo chi\u1ec1u d\u00e0y; v\u1edbi d\u1ea3i chi\u1ec1u d\u00e0y th\u00f4ng d\u1ee5ng, gi\u1edbi h\u1ea1n b\u1ec1n k\u00e9o v\u00e0 ch\u1ea3y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng chu\u1ea9n 304 c\u1ee7a ASTM (b\u1ec1n k\u00e9o t\u1ed1i thi\u1ec3u kho\u1ea3ng tr\u00ean 500 MPa, \u0111\u1ed9 gi\u00e3n d\u00e0i cao). Th\u00f4ng s\u1ed1 ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c chi\u1ec1u d\u00e0y v\u00e0 form s\u1ea3n ph\u1ea9m trong ti\u00eau chu\u1ea9n JIS t\u01b0\u01a1ng \u1ee9ng.<br \/>\n&#8211; Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc mang t\u00ednh gi\u1edbi h\u1ea1n theo JIS; s\u1ed1 li\u1ec7u \u201c\u0111i\u1ec3n h\u00ecnh\u201d do nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1 c\u00f3 th\u1ec3 n\u1eb1m gi\u1eefa d\u1ea3i cho ph\u00e9p \u0111\u1ec3 t\u1ed1i \u01b0u gia c\u00f4ng\/ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n<h2 id=\"toc-9-nguon-tham-khao-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/h2>\n<p>&#8211; Japanese Industrial Standards (JIS) for stainless steels: JIS G4303, JIS G4304, JIS G4305 \u2013 Japanese Standards Association (jsa.or.jp).<br \/>\n&#8211; Nippon Steel Stainless Steel Corporation (NSSC) \u2013 Product\/Technical Data Sheets for SUS304\/304L\/316\/316L\/430\/444.<br \/>\n&#8211; Outokumpu Stainless Steel Grades \u2013 Grade datasheets and corrosion guidance (outokumpu.com).<br \/>\n&#8211; ASTM A240\/A276 \u2013 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate\/Sheet\/Bar (\u0111\u1ed1i s\u00e1nh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng).<\/p>\n<h2 id=\"toc-10-tom-luoc-chon-mac-nhanh\">T\u00f3m l\u01b0\u1ee3c ch\u1ecdn m\u00e1c nhanh<\/h2>\n<p>&#8211; C\u1ea7n \u0111a d\u1ee5ng, \u1ed5n \u0111\u1ecbnh ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb: SUS304\/304L.<br \/>\n&#8211; C\u1ea7n ch\u1ed1ng clorua\/r\u1ed7 t\u1ed1t (g\u1ea7n bi\u1ec3n, n\u01b0\u1edbc mu\u1ed1i): SUS316\/316L ho\u1eb7c SUS444 cho n\u01b0\u1edbc n\u00f3ng.<br \/>\n&#8211; C\u1ea7n gi\u00e1 t\u1ed1t, m\u00f4i tr\u01b0\u1eddng kh\u00f4 trong nh\u00e0: SUS430 ho\u1eb7c SUS201 (l\u01b0u \u00fd r\u1ee7i ro \u0103n m\u00f2n).<br \/>\n&#8211; C\u1ea7n \u0111\u1ed9 c\u1ee9ng\/c\u1eaft g\u1ecdt: SUS420J2.<br \/>\nLu\u00f4n ki\u1ec3m tra MTC\/CO\/CQ v\u00e0, khi c\u1ea7n, PMI \u0111\u1ec3 x\u00e1c th\u1ef1c m\u00e1c tr\u01b0\u1edbc thi c\u00f4ng.<\/p>\n<p>K\u1ebft lu\u1eadn<br \/>\nTi\u00eau chu\u1ea9n JIS cung c\u1ea5p khung k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng cho inox, t\u1eeb th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh \u0111\u1ebfn ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t. Trong c\u00e1c m\u00e1c ph\u1ed5 bi\u1ebfn, SUS304\/304L l\u00e0 l\u1ef1a ch\u1ecdn an to\u00e0n cho \u0111a s\u1ed1 \u1ee9ng d\u1ee5ng; SUS316\/316L v\u01b0\u1ee3t tr\u1ed9i \u1edf m\u00f4i tr\u01b0\u1eddng clorua; SUS201 v\u00e0 SUS430 ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t kh\u00f4\/kinh t\u1ebf; c\u00e1c m\u00e1c ferritic cao c\u1ea5p nh\u01b0 444 l\u00e0 ph\u01b0\u01a1ng \u00e1n thay th\u1ebf 316 trong n\u01b0\u1edbc n\u00f3ng v\u00e0 clorua. X\u00e1c \u0111\u1ecbnh \u0111\u00fang m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c, y\u00eau c\u1ea7u h\u00e0n\/gia c\u00f4ng, v\u00e0 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n JIS khi \u0111\u1eb7t h\u00e0ng s\u1ebd gi\u00fap b\u1ea1n t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi v\u00e0 \u0111\u1ed9 tin c\u1eady c\u00f4ng tr\u00ecnh.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c theo b\u1ea3n v\u1ebd\/\u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb k\u1ef9 thu\u1eadt v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t.<br \/>\nHotline: 0343.417.281<br \/>\nEmail: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1ea3i th\u00edch ti\u00eau chu\u1ea9n JIS cho inox, so s\u00e1nh SUS201\/304\/316\/430, th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh, \u1ee9ng d\u1ee5ng, \u0111\u1ed1i s\u00e1nh ASTM\/AISI v\u00e0 h\u01b0\u1edbng d\u1eabn ch\u1ecdn m\u00e1c v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p.<\/p>\n","protected":false},"author":7,"featured_media":1034,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1883","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\/1883","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=1883"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1883\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1034"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}