{"id":1880,"date":"2026-04-08T12:33:36","date_gmt":"2026-04-08T05:33:36","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/so-tay-tieu-chuan-inox-astm-jis-din-en-va-co-cq-cho-du-an-ben-vung\/"},"modified":"2026-04-10T12:35:23","modified_gmt":"2026-04-10T05:35:23","slug":"so-tay-tieu-chuan-inox-astm-jis-din-en-va-co-cq-cho-du-an-ben-vung","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/so-tay-tieu-chuan-inox-astm-jis-din-en-va-co-cq-cho-du-an-ben-vung\/","title":{"rendered":"S\u1ed5 tay ti\u00eau chu\u1ea9n Inox: ASTM, JIS, DIN\/EN v\u00e0 CO\/CQ cho d\u1ef1 \u00e1n b\u1ec1n v\u1eefng"},"content":{"rendered":"<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\/tieu-chuan-gb-cho-inox-nhap-khau-cach-doc-so-sanh-va-mua-dung\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ti\u00eau chu\u1ea9n GB cho inox nh\u1eadp kh\u1ea9u: c\u00e1ch \u0111\u1ecdc, so s\u00e1nh v\u00e0 mua \u0111\u00fang<\/a><\/p>\n<\/p><\/div>\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\/tieu-chuan-din-vs-en-cho-inox-khac-biet-quy-doi-va-cach-ap-dung\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ti\u00eau chu\u1ea9n DIN vs EN cho inox: kh\u00e1c bi\u1ec7t, quy \u0111\u1ed5i v\u00e0 c\u00e1ch \u00e1p d\u1ee5ng<\/a><\/p>\n<\/p>\n<\/div>\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\/tieu-chuan-jis-sus304-sus201-sus316-dac-tinh-so-sanh-ung-dung\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ti\u00eau chu\u1ea9n JIS: SUS304, SUS201, SUS316 \u2013 \u0111\u1eb7c t\u00ednh, so s\u00e1nh, \u1ee9ng d\u1ee5ng<\/a><\/p>\n<\/p>\n<\/div>\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\/tieu-chuan-astm-cho-thep-khong-gi-ma-yeu-cau-va-cach-ap-dung\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ti\u00eau chu\u1ea9n ASTM cho th\u00e9p kh\u00f4ng g\u1ec9: m\u00e3, y\u00eau c\u1ea7u v\u00e0 c\u00e1ch \u00e1p d\u1ee5ng<\/a><\/p>\n<\/p>\n<\/div>\n<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-he-chuan-va-chung-nhan-inox-nen-tang-kiem-soat-rui\">H\u1ec7 chu\u1ea9n v\u00e0 ch\u1ee9ng nh\u1eadn Inox: n\u1ec1n t\u1ea3ng ki\u1ec3m so\u00e1t r\u1ee7i ro k\u1ef9 thu\u1eadt \u2013 ph\u00e1p l\u00fd<\/a><\/li>\n<li><a href=\"#toc-1-tong-quan-nen-tang-tieu-chuan-la-gi-va-vi-sao-bat-\">T\u1ed5ng quan n\u1ec1n t\u1ea3ng: ti\u00eau chu\u1ea9n l\u00e0 g\u00ec v\u00e0 v\u00ec sao b\u1eaft bu\u1ed9c ph\u1ea3i theo?<\/a><\/li>\n<li><a href=\"#toc-2-nhung-khia-canh-then-chot-can-nam-vung-truoc-khi-d\">Nh\u1eefng kh\u00eda c\u1ea1nh then ch\u1ed1t c\u1ea7n n\u1eafm v\u1eefng tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng<\/a><\/li>\n<li><a href=\"#toc-3-dao-sau-tung-chu-de-chuan-chung-tu-va-cach-quy-doi\">\u0110\u00e0o s\u00e2u t\u1eebng ch\u1ee7 \u0111\u1ec1: chu\u1ea9n, ch\u1ee9ng t\u1eeb v\u00e0 c\u00e1ch quy \u0111\u1ed5i<\/a><\/li>\n<li><a href=\"#toc-4-ung-dung-thuc-te-va-khuyen-nghi-tu-chuyen-gia\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb t\u1eeb chuy\u00ean gia<\/a><\/li>\n<li><a href=\"#toc-5-ket-luan-va-keu-goi-hanh-dong\">K\u1ebft lu\u1eadn v\u00e0 k\u00eau g\u1ecdi h\u00e0nh \u0111\u1ed9ng<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"toc-0-he-chuan-va-chung-nhan-inox-nen-tang-kiem-soat-rui\">H\u1ec7 chu\u1ea9n v\u00e0 ch\u1ee9ng nh\u1eadn Inox: n\u1ec1n t\u1ea3ng ki\u1ec3m so\u00e1t r\u1ee7i ro k\u1ef9 thu\u1eadt \u2013 ph\u00e1p l\u00fd<\/h2>\n<p>M\u1ed9t sai s\u00f3t nh\u1ecf trong vi\u1ec7c ch\u1ecdn ti\u00eau chu\u1ea9n hay thi\u1ebfu b\u1ed9 CO\/CQ, MTC c\u00f3 th\u1ec3 khi\u1ebfn l\u00f4 Inox b\u1ecb tr\u1ea3 v\u1ec1, ch\u1eadm ti\u1ebfn \u0111\u1ed9 ho\u1eb7c xu\u1ed1ng c\u1ea5p s\u1edbm khi v\u1eadn h\u00e0nh. V\u1edbi k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u, ch\u1ee7 x\u01b0\u1edfng, v\u1ea5n \u0111\u1ec1 kh\u00f4ng ch\u1ec9 l\u00e0 \u201cmua \u0111\u00fang m\u00e1c th\u00e9p\u201d, m\u00e0 l\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed3ng b\u1ed9 ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt, dung sai, ngu\u1ed3n g\u1ed1c v\u00e0 ch\u1ee9ng t\u1eeb \u0111\u1ec3 d\u1ef1 \u00e1n an to\u00e0n, hi\u1ec7u qu\u1ea3 v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi. B\u00e0i vi\u1ebft n\u00e0y x\u00e2y d\u1ef1ng nh\u01b0 m\u1ed9t s\u1ed5 tay th\u1ef1c h\u00e0nh: l\u00e0m r\u00f5 h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf (ASTM, JIS, DIN\/EN, GB), \u00fd ngh\u0129a ph\u00e1p l\u00fd \u2013 k\u1ef9 thu\u1eadt c\u1ee7a CO, CQ, MTC; c\u00e1ch quy \u0111\u1ed5i m\u00e1c, \u0111\u1ecdc dung sai, ch\u1ecdn chu\u1ea9n \u1ed1ng c\u00f4ng nghi\u1ec7p, v\u00e0 c\u00e1c y\u00eau c\u1ea7u an to\u00e0n th\u1ef1c ph\u1ea9m. M\u1ee5c ti\u00eau l\u00e0 gi\u00fap b\u1ea1n ra quy\u1ebft \u0111\u1ecbnh nhanh, \u0111\u00fang v\u00e0 c\u00f3 th\u1ec3 ki\u1ec3m ch\u1ee9ng, gi\u1ea3m thi\u1ec3u r\u1ee7i ro mua h\u00e0ng v\u00e0 l\u1eafp \u0111\u1eb7t, \u0111\u1ed3ng th\u1eddi chu\u1ea9n b\u1ecb h\u1ed3 s\u01a1 \u0111\u1ea1t y\u00eau c\u1ea7u nghi\u1ec7m thu, h\u1ea3i quan v\u00e0 ki\u1ec3m \u0111\u1ecbnh.<\/p>\n<h2 id=\"toc-1-tong-quan-nen-tang-tieu-chuan-la-gi-va-vi-sao-bat-\">T\u1ed5ng quan n\u1ec1n t\u1ea3ng: ti\u00eau chu\u1ea9n l\u00e0 g\u00ec v\u00e0 v\u00ec sao b\u1eaft bu\u1ed9c ph\u1ea3i theo?<\/h2>\n<p>&#8211; Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u Inox (th\u00e9p kh\u00f4ng g\u1ec9) l\u00e0 b\u1ed9 quy \u0111\u1ecbnh v\u1ec1 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh, b\u1ec1 m\u1eb7t, k\u00edch th\u01b0\u1edbc \u2013 dung sai, quy c\u00e1ch s\u1ea3n xu\u1ea5t v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed. C\u00e1c h\u1ec7 ph\u1ed5 bi\u1ebfn: ASTM (M\u1ef9), JIS (Nh\u1eadt), DIN\/EN (\u0110\u1ee9c\/Ch\u00e2u \u00c2u), GB (Trung Qu\u1ed1c).<br \/>\n&#8211; Ch\u1ee9ng nh\u1eadn\/ch\u1ee9ng t\u1eeb ch\u1ea5t l\u01b0\u1ee3ng l\u00e0 b\u1eb1ng ch\u1ee9ng ph\u00e1p l\u00fd \u2013 k\u1ef9 thu\u1eadt \u0111i k\u00e8m l\u00f4 h\u00e0ng, bao g\u1ed3m: MTC theo EN 10204 (th\u01b0\u1eddng l\u00e0 3.1), CQ (Certificate of Quality), CO (Certificate of Origin). Ch\u00fang cho ph\u00e9p truy xu\u1ea5t heat number, m\u1ebb \u0111\u00fac, nh\u00e0 m\u00e1y v\u00e0 ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng.<br \/>\n&#8211; V\u00ec sao quan tr\u1ecdng:<br \/>\n  + \u0110\u1ea3m b\u1ea3o ph\u00f9 h\u1ee3p thi\u1ebft k\u1ebf\/\u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c (\u0103n m\u00f2n, nhi\u1ec7t \u0111\u1ed9, \u00e1p l\u1ef1c).<br \/>\n  + Thu\u1eadn l\u1ee3i th\u00f4ng quan v\u00e0 h\u01b0\u1edfng thu\u1ebf su\u1ea5t \u01b0u \u0111\u00e3i (CO \u0111\u00fang m\u1eabu).<br \/>\n  + \u0110\u00e1p \u1ee9ng nghi\u1ec7m thu c\u1ee7a ch\u1ee7 \u0111\u1ea7u t\u01b0\/t\u01b0 v\u1ea5n gi\u00e1m s\u00e1t; gi\u1ea3m r\u1ee7i ro ph\u00e1p l\u00fd.<br \/>\n&#8211; Th\u1ef1c ti\u1ec5n: t\u1ea5m\/cu\u1ed9n th\u01b0\u1eddng theo ASTM A240, JIS G4304\/G4305 ho\u1eb7c EN 10088; \u1ed1ng c\u00f4ng nghi\u1ec7p theo ASTM A312, A269, A270; dung sai chi\u1ec1u d\u00e0y \u2013 b\u1ec1 r\u1ed9ng theo ASTM A480 ho\u1eb7c JIS\/EN t\u01b0\u01a1ng \u1ee9ng. Vi\u1ec7c n\u00eau r\u00f5 \u201cchu\u1ea9n + m\u00e1c + b\u1ec1 m\u1eb7t + dung sai + lo\u1ea1i MTC\u201d ngay trong h\u1ee3p \u0111\u1ed3ng l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ec3 \u0111\u1ed3ng b\u1ed9 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 h\u1ed3 s\u01a1.<\/p>\n<h2 id=\"toc-2-nhung-khia-canh-then-chot-can-nam-vung-truoc-khi-d\">Nh\u1eefng kh\u00eda c\u1ea1nh then ch\u1ed1t c\u1ea7n n\u1eafm v\u1eefng tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng<\/h2>\n<h3>1) M\u00e1c th\u00e9p v\u00e0 h\u1ec7 ti\u00eau chu\u1ea9n g\u1ed1c<\/h3>\n<p>M\u1ed7i h\u1ec7 d\u00f9ng k\u00fd hi\u1ec7u ri\u00eang cho c\u00f9ng m\u1ed9t \u201cgia \u0111\u00ecnh\u201d h\u1ee3p kim. V\u00ed d\u1ee5: 304 (ASTM), SUS304 (JIS), 1.4301 (EN), 06Cr19Ni10 (GB). 316\/316L t\u01b0\u01a1ng \u1ee9ng 1.4401\/1.4404; 430 l\u00e0 SUS430\/1.4016. Ch\u1ecdn m\u00e1c d\u1ef1a tr\u00ean m\u00f4i tr\u01b0\u1eddng: 201 cho n\u1ed9i th\u1ea5t kh\u00f4; 304 cho th\u1ef1c ph\u1ea9m, m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb; 316L cho n\u01b0\u1edbc bi\u1ec3n\/Cl-; 310S cho nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n<h3>2) Ch\u1ee9ng t\u1eeb truy xu\u1ea5t: MTC 3.1 v\u00e0 CQ<\/h3>\n<p>MTC th\u1ec3 hi\u1ec7n heat number, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh, chu\u1ea9n \u00e1p d\u1ee5ng, k\u1ebft qu\u1ea3 th\u1eed. CQ t\u00f3m t\u1eaft ch\u1ea5t l\u01b0\u1ee3ng theo l\u00f4. \u0110\u1ed1i chi\u1ebfu heat number gi\u1eefa MTC, nh\u00e3n cu\u1ed9n\/t\u1ea5m\/\u1ed1ng v\u00e0 packing list l\u00e0 b\u01b0\u1edbc ki\u1ec3m tra b\u1eaft bu\u1ed9c \u0111\u1ec3 tr\u00e1nh tr\u1ed9n l\u1eabn v\u1eadt li\u1ec7u.<\/p>\n<h3>3) Dung sai k\u00edch th\u01b0\u1edbc \u2013 b\u1ec1 m\u1eb7t theo chu\u1ea9n<\/h3>\n<p>Dung sai \u0111\u1ed9 d\u00e0y, b\u1ec1 r\u1ed9ng, \u0111\u1ed9 cong ph\u1eb3ng, sai l\u1ec7ch chi\u1ec1u d\u00e0i \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh (v\u00ed d\u1ee5 ASTM A480 cho t\u1ea5m\/cu\u1ed9n; JIS G4304\/4305; EN ISO 9445). Ch\u00eanh l\u1ec7ch nh\u1ecf c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng h\u00e0n, u\u1ed1n, \u00e9p ch\u1ea5n, hao h\u1ee5t v\u00e0 c\u00e2n n\u1eb7ng thanh to\u00e1n.<\/p>\n<h3>4) \u1ee8ng d\u1ee5ng \u0111\u1eb7c th\u00f9: \u1ed1ng c\u00f4ng nghi\u1ec7p v\u00e0 an to\u00e0n th\u1ef1c ph\u1ea9m<\/h3>\n<p>\u1ed0ng \u00e1p l\u1ef1c\/nhi\u1ec7t \u0111\u1ed9: ASTM A312; \u1ed1ng trao \u0111\u1ed5i nhi\u1ec7t: A249\/A213; \u1ed1ng t\u1ed5ng d\u1ee5ng: A269; \u1ed1ng vi sinh: A270 v\u1edbi y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t Ra (th\u01b0\u1eddng \u22640.8 \u03bcm) v\u00e0 v\u1ec7 sinh. Ng\u00e0nh th\u1ef1c ph\u1ea9m c\u1ea7n v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p FDA\/NSF, \u01b0u ti\u00ean 304\/316L, b\u1ec1 m\u1eb7t m\u1ecbn, passivation v\u00e0 h\u1ed3 s\u01a1 truy xu\u1ea5t \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<h2 id=\"toc-3-dao-sau-tung-chu-de-chuan-chung-tu-va-cach-quy-doi\">\u0110\u00e0o s\u00e2u t\u1eebng ch\u1ee7 \u0111\u1ec1: chu\u1ea9n, ch\u1ee9ng t\u1eeb v\u00e0 c\u00e1ch quy \u0111\u1ed5i<\/h2>\n<p>\u0110\u1ec3 tri\u1ec3n khai \u0111\u00fang ngay t\u1eeb kh\u00e2u thi\u1ebft k\u1ebf v\u00e0 mua s\u1eafm, h\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi khung ti\u00eau chu\u1ea9n c\u1ee7a M\u1ef9 \u2013 n\u01a1i nhi\u1ec1u d\u1ef1 \u00e1n FDI v\u00e0 EPC t\u1ea1i Vi\u1ec7t Nam \u0111ang tham chi\u1ebfu. T\u1ed5ng quan chu\u1ea9n ASTM cho Inox s\u1ebd gi\u00fap b\u1ea1n li\u00ean h\u1ec7 nhanh \u0111\u1ebfn m\u00e1c, s\u1ea3n ph\u1ea9m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed t\u01b0\u01a1ng \u1ee9ng.<br \/>\n<!-- CLUSTER_PLACEHOLDER_1 --><\/p>\n<p>Sau \u0111\u00f3, h\u1ec7 JIS c\u1ee7a Nh\u1eadt B\u1ea3n mang \u0111\u1ebfn b\u1ed9 k\u00fd hi\u1ec7u quen thu\u1ed9c nh\u01b0 SUS304, SUS316, SUS430 v\u00e0 c\u1ea3 d\u00f2ng SUS201 d\u00f9ng trong \u1ee9ng d\u1ee5ng kinh t\u1ebf. Hi\u1ec3u kh\u00e1c bi\u1ec7t h\u00f3a h\u1ecdc \u2013 c\u01a1 t\u00ednh theo JIS gi\u00fap b\u1ea1n ch\u1ed1t v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p m\u00e0 kh\u00f4ng \u201cl\u1ed1\u201d chi ph\u00ed.<br \/>\n<!-- CLUSTER_PLACEHOLDER_2 --><\/p>\n<p>\u1ede ch\u00e2u \u00c2u, DIN\/EN s\u1eed d\u1ee5ng s\u1ed1 v\u1eadt li\u1ec7u (Werkstoffnummer) nh\u01b0 1.4301, 1.4404 c\u00f9ng EN 10088. S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 k\u00fd hi\u1ec7u v\u00e0 m\u1ed9t v\u00e0i ch\u1ec9 ti\u00eau th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng nghi\u1ec7m thu, v\u00ec v\u1eady c\u1ea7n n\u1eafm c\u00e1ch \u0111\u1ed1i chi\u1ebfu khi t\u00e0i li\u1ec7u thi\u1ebft k\u1ebf d\u00f9ng h\u1ec7 EU.<br \/>\n<!-- CLUSTER_PLACEHOLDER_3 --><\/p>\n<p>V\u1edbi ngu\u1ed3n h\u00e0ng nh\u1eadp kh\u1ea9u t\u1eeb Trung Qu\u1ed1c, ti\u00eau chu\u1ea9n GB r\u1ea5t ph\u1ed5 bi\u1ebfn. C\u00e1ch \u0111\u1ecdc m\u00e1c ki\u1ec3u 06Cr19Ni10 (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 304) v\u00e0 y\u00eau c\u1ea7u gi\u1ea5y t\u1edd (CO form E, MTC) l\u00e0 \u0111i\u1ec3m m\u1ea5u ch\u1ed1t khi so s\u00e1nh gi\u00e1 \u2013 ch\u1ea5t l\u01b0\u1ee3ng.<br \/>\n<!-- CLUSTER_PLACEHOLDER_4 --><\/p>\n<p>B\u1ed9 CO\/CQ l\u00e0 \u201cx\u01b0\u01a1ng s\u1ed1ng\u201d c\u1ee7a h\u1ed3 s\u01a1 l\u00f4 h\u00e0ng. B\u1ea1n n\u00ean bi\u1ebft CO\/CQ l\u00e0 g\u00ec, c\u00e1ch ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7, v\u00e0 c\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi\u1ebfn h\u1ea3i quan hay ch\u1ee7 \u0111\u1ea7u t\u01b0 y\u00eau c\u1ea7u b\u1ed5 sung\/gi\u1ea3i tr\u00ecnh.<br \/>\n<!-- CLUSTER_PLACEHOLDER_5 --><\/p>\n<p>K\u00e8m theo \u0111\u00f3, Mill Test Certificate (MTC) theo EN 10204 \u2013 th\u01b0\u1eddng lo\u1ea1i 3.1 \u2013 l\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 truy xu\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ebfn t\u1eebng heat. Hi\u1ec3u c\u00e1ch \u0111\u1ecdc MTC s\u1ebd gi\u00fap b\u1ea1n lo\u1ea1i b\u1ecf r\u1ee7i ro v\u1eadt li\u1ec7u kh\u00f4ng \u0111\u1ea1t m\u00e1c.<br \/>\n<!-- CLUSTER_PLACEHOLDER_6 --><\/p>\n<p>Khi l\u00e0m vi\u1ec7c \u0111a h\u1ec7 ti\u00eau chu\u1ea9n, b\u1ea3ng quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ASTM \u2013 JIS \u2013 DIN\/EN l\u00e0 c\u00f4ng c\u1ee5 tra c\u1ee9u nhanh. Tuy nhi\u00ean, quy \u0111\u1ed5i ch\u1ec9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1ec1 th\u00e0nh ph\u1ea7n danh \u0111\u1ecbnh; h\u00e3y lu\u00f4n so s\u00e1nh ch\u1ec9 ti\u00eau c\u1ee5 th\u1ec3 tr\u01b0\u1edbc khi thay th\u1ebf.<br \/>\n<!-- CLUSTER_PLACEHOLDER_7 --><\/p>\n<p>Dung sai \u0111\u1ed9 d\u00e0y, chi\u1ec1u r\u1ed9ng v\u00e0 \u0111\u1ed9 ph\u1eb3ng \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi gia c\u00f4ng v\u00e0 \u0111\u1ecbnh l\u01b0\u1ee3ng. N\u1eafm c\u00e1c m\u1ee9c dung sai \u0111i\u1ec3n h\u00ecnh theo ASTM A480, JIS v\u00e0 EN gi\u00fap b\u1ea1n th\u01b0\u01a1ng th\u1ea3o \u0111\u00fang \u0111i\u1ec1u ki\u1ec7n giao h\u00e0ng v\u00e0 ki\u1ec3m h\u00e0ng.<br \/>\n<!-- CLUSTER_PLACEHOLDER_8 --><\/p>\n<p>D\u1ef1 \u00e1n c\u00f3 \u0111\u01b0\u1eddng \u1ed1ng? C\u00e1c ti\u00eau chu\u1ea9n \u1ed1ng Inox nh\u01b0 ASTM A312, A270, A269, A249, A213, c\u00f9ng ASME B36.19 v\u1ec1 k\u00edch th\u01b0\u1edbc\/schedule l\u00e0 \u201ct\u1eeb \u0111i\u1ec3n\u201d b\u1eaft bu\u1ed9c \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 mua s\u1eafm \u0111\u1ed3ng nh\u1ea5t.<br \/>\n<!-- CLUSTER_PLACEHOLDER_9 --><\/p>\n<p>Cu\u1ed1i c\u00f9ng, v\u1edbi ng\u00e0nh th\u1ef1c ph\u1ea9m, \u0111\u1ed3 u\u1ed1ng v\u00e0 d\u01b0\u1ee3c ph\u1ea9m, ti\u00eau chu\u1ea9n an to\u00e0n nh\u01b0 FDA, NSF\/ANSI 51\/61 v\u00e0 3-A Sanitary quy\u1ebft \u0111\u1ecbnh v\u1eadt li\u1ec7u, b\u1ec1 m\u1eb7t v\u00e0 v\u1ec7 sinh h\u1ecdc. \u0110\u00e2y l\u00e0 y\u00eau c\u1ea7u c\u1ed1t l\u00f5i \u0111\u1ec3 qua th\u1ea9m \u0111\u1ecbnh QA\/QC.<br \/>\n<!-- CLUSTER_PLACEHOLDER_10 --><\/p>\n<h2 id=\"toc-4-ung-dung-thuc-te-va-khuyen-nghi-tu-chuyen-gia\">\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb t\u1eeb chuy\u00ean gia<\/h2>\n<p>&#8211; \u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<br \/>\n  + B\u1ed3n ch\u1ee9a n\u01b0\u1edbc RO\/di: 316L theo ASTM A240, b\u1ec1 m\u1eb7t 2B, MTC 3.1; \u1ed1ng A270 vi sinh, Ra \u22640.8 \u03bcm.<br \/>\n  + K\u1ebft c\u1ea5u \u2013 lan can trong nh\u00e0: 304 theo JIS G4305, b\u1ec1 m\u1eb7t BA\/HL; v\u1edbi khu v\u1ef1c ven bi\u1ec3n chuy\u1ec3n sang 316L.<br \/>\n  + Trao \u0111\u1ed5i nhi\u1ec7t: \u1ed1ng A249\/A213, ki\u1ec3m tra \u0111\u1ed9 oval v\u00e0 chi\u1ec1u d\u00e0y theo ti\u00eau chu\u1ea9n; y\u00eau c\u1ea7u th\u1eed Eddy Current n\u1ebfu c\u1ea7n.<br \/>\n  + D\u00e2y chuy\u1ec1n F&#038;B: v\u1eadt li\u1ec7u 304\/316L, m\u1ed1i h\u00e0n m\u00e0i b\u00f3ng \u2013 passivation, ch\u1ee9ng nh\u1eadn NSF\/3-A khi \u00e1p d\u1ee5ng.<\/p>\n<p>&#8211; Th\u1ef1c h\u00e0nh ki\u1ec3m so\u00e1t mua h\u00e0ng<br \/>\n  1) Ghi r\u00f5 trong h\u1ee3p \u0111\u1ed3ng: ti\u00eau chu\u1ea9n + m\u00e1c + b\u1ec1 m\u1eb7t + dung sai + y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m + lo\u1ea1i MTC (3.1\/3.2) + CO m\u1eabu g\u00ec.<br \/>\n  2) Ki\u1ec3m tra tr\u01b0\u1edbc giao h\u00e0ng: \u0111\u1ed1i chi\u1ebfu MTC \u2013 heat number \u2013 packing list \u2013 nh\u00e3n s\u1ea3n ph\u1ea9m; l\u1ea5y m\u1eabu ki\u1ec3m \u0111\u1ecbnh \u0111\u1ed9c l\u1eadp n\u1ebfu l\u00f4 gi\u00e1 tr\u1ecb l\u1edbn.<br \/>\n  3) \u0110o th\u1ef1c t\u1ebf dung sai \u0111\u1ed9 d\u00e0y, b\u1ec1 r\u1ed9ng, \u0111\u1ed9 ph\u1eb3ng\/\u0111\u1ed9 oval \u1ed1ng; so s\u00e1nh v\u1edbi ASTM A480\/JIS\/EN t\u01b0\u01a1ng \u1ee9ng.<br \/>\n  4) V\u1edbi \u1ed1ng: x\u00e1c nh\u1eadn ti\u00eau chu\u1ea9n (A312\/A269\/A270), lo\u1ea1i h\u00e0n\/seamless, pickling\/passivation, test hydrostatic\/PMI khi c\u1ea7n.<br \/>\n  5) L\u01b0u tr\u1eef h\u1ed3 s\u01a1 s\u1ed1 h\u00f3a (CO, CQ, MTC, \u1ea3nh nh\u00e3n heat) \u0111\u1ec3 ph\u1ee5c v\u1ee5 nghi\u1ec7m thu v\u00e0 b\u1ea3o h\u00e0nh.<\/p>\n<p>&#8211; 5 l\u1ed7i th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh<br \/>\n  &#8211; D\u00f9ng 201 cho m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n\/Cl- thay v\u00ec 304\/316L.<br \/>\n  &#8211; Tin v\u00e0o t\u00ean m\u00e1c m\u00e0 kh\u00f4ng \u0111\u1ed1i chi\u1ebfu th\u00e0nh ph\u1ea7n\/c\u01a1 t\u00ednh tr\u00ean MTC 3.1.<br \/>\n  &#8211; B\u1ecf qua dung sai, d\u1eabn \u0111\u1ebfn k\u1eb9t khu\u00f4n ch\u1ea5n, sai kh\u1ed1i l\u01b0\u1ee3ng thanh to\u00e1n.<br \/>\n  &#8211; Nh\u1ea7m l\u1eabn gi\u1eefa A312 (\u1ed1ng c\u00f4ng nghi\u1ec7p) v\u00e0 A554 (\u1ed1ng trang tr\u00ed c\u01a1 kh\u00ed).<br \/>\n  &#8211; Quy \u0111\u1ed5i m\u00e1c gi\u1eefa ASTM\u2013JIS\u2013EN nh\u01b0ng kh\u00f4ng so s\u00e1nh \u0111\u1ea7y \u0111\u1ee7 ch\u1ec9 ti\u00eau v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u1eed.<\/p>\n<h2 id=\"toc-5-ket-luan-va-keu-goi-hanh-dong\">K\u1ebft lu\u1eadn v\u00e0 k\u00eau g\u1ecdi h\u00e0nh \u0111\u1ed9ng<\/h2>\n<p>N\u1eafm v\u1eefng h\u1ec7 ti\u00eau chu\u1ea9n (ASTM, JIS, DIN\/EN, GB) c\u00f9ng b\u1ed9 ch\u1ee9ng t\u1eeb (CO, CQ, MTC) l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 ch\u1ecdn \u0111\u00fang v\u1eadt li\u1ec7u, ki\u1ec3m so\u00e1t r\u1ee7i ro v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi d\u1ef1 \u00e1n. H\u00e3y ti\u00eau chu\u1ea9n h\u00f3a ngay t\u1eeb h\u1ee3p \u0111\u1ed3ng, ki\u1ec3m tra dung sai \u2013 truy xu\u1ea5t heat number v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng \u0111\u1eb7c th\u00f9 (\u1ed1ng c\u00f4ng nghi\u1ec7p, an to\u00e0n th\u1ef1c ph\u1ea9m). C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c, \u0111\u1ecdc MTC 3.1, t\u1ed1i \u01b0u h\u1ed3 s\u01a1 CO\/CQ ho\u1eb7c b\u00e1o gi\u00e1 Inox c\u00f3 s\u1eb5n kho H\u00e0 N\u1ed9i? Li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u00e0 nh\u1eadn gi\u1ea3i ph\u00e1p v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p, s\u1eb5n s\u00e0ng giao nhanh cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u \u0111\u00fang ASTM, JIS, DIN\/EN, GB, CO\/CQ, MTC, dung sai v\u00e0 chu\u1ea9n \u1ed1ng Inox. H\u01b0\u1edbng d\u1eabn th\u1ef1c d\u1ee5ng gi\u00fap ch\u1ecdn m\u00e1c th\u00e9p, ki\u1ec3m ch\u1ee9ng h\u1ed3 s\u01a1 v\u00e0 gi\u1ea3m r\u1ee7i ro d\u1ef1 \u00e1n.<\/p>\n","protected":false},"author":7,"featured_media":1007,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1880","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\/1880","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=1880"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1880\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1007"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}