{"id":1447,"date":"2025-12-19T00:36:47","date_gmt":"2025-12-18T17:36:47","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-astm-jis-din-en-cap-nhat-2025\/"},"modified":"2025-12-19T00:36:47","modified_gmt":"2025-12-18T17:36:47","slug":"bang-quy-doi-mac-inox-astm-jis-din-en-cap-nhat-2025","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-astm-jis-din-en-cap-nhat-2025\/","title":{"rendered":"B\u1ea3ng quy \u0111\u1ed5i m\u00e1c Inox ASTM \u2013 JIS \u2013 DIN\/EN (c\u1eadp nh\u1eadt 2025)"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-vi-sao-can-quy-doi-mac-inox-giua-astm-jis-dinen\">V\u00ec sao c\u1ea7n quy \u0111\u1ed5i m\u00e1c Inox gi\u1eefa ASTM, JIS, DIN\/EN?<\/a><\/li>\n<li><a href=\"#toc-1-cach-doc-va-lien-he-giua-he-thong-ky-hieu\">C\u00e1ch \u0111\u1ecdc v\u00e0 li\u00ean h\u1ec7 gi\u1eefa h\u1ec7 th\u1ed1ng k\u00fd hi\u1ec7u<\/a><\/li>\n<li><a href=\"#toc-2-bang-quy-doi-nhanh-theo-nhom-thep-khong-gi\">B\u1ea3ng quy \u0111\u1ed5i nhanh theo nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9<\/a><\/li>\n<li><a href=\"#toc-3-sai-khac-thuong-gap-khi-quy-doi-khong-hoan-toan-11\">Sai kh\u00e1c th\u01b0\u1eddng g\u1eb7p khi quy \u0111\u1ed5i (kh\u00f4ng ho\u00e0n to\u00e0n 1:1)<\/a><\/li>\n<li><a href=\"#toc-4-dung-quen-tieu-chuan-san-pham-tamcayong-khi-quy-do\">\u0110\u1eebng qu\u00ean ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m (t\u1ea5m\/c\u00e2y\/\u1ed1ng) khi quy \u0111\u1ed5i<\/a><\/li>\n<li><a href=\"#toc-5-thanh-phan-hoa-hoc-tham-khao-tom-tat\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc tham kh\u1ea3o (t\u00f3m t\u1eaft)<\/a><\/li>\n<li><a href=\"#toc-6-lo-trinh-kiem-tra-tuong-duong-tung-buoc-khuyen-ngh\">L\u1ed9 tr\u00ecnh ki\u1ec3m tra t\u01b0\u01a1ng \u0111\u01b0\u01a1ng t\u1eebng b\u01b0\u1edbc (khuy\u1ebfn ngh\u1ecb th\u1ef1c h\u00e0nh)<\/a><\/li>\n<li><a href=\"#toc-7-vi-du-quy-doi-thuc-te\">V\u00ed d\u1ee5 quy \u0111\u1ed5i th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-8-kiem-tra-cocq-va-chung-chi-vat-lieu\">Ki\u1ec3m tra CO\/CQ v\u00e0 ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u<\/a><\/li>\n<li><a href=\"#toc-9-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/a><\/li>\n<li><a href=\"#toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p b\u1ea3ng quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng gi\u1eefa c\u00e1c m\u00e1c inox theo ASTM\/AISI, JIS v\u00e0 DIN\/EN \u2013 nh\u1eefng h\u1ec7 ti\u00eau chu\u1ea9n tr\u1ecdng y\u1ebfu trong chu\u1ed7i cung \u1ee9ng th\u00e9p kh\u00f4ng g\u1ec9. \u0110\u00e2y l\u00e0 c\u00f4ng c\u1ee5 th\u1ef1c t\u1ebf cho k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u v\u00e0 x\u01b0\u1edfng c\u01a1 kh\u00ed khi ph\u1ea3i \u0111\u1ecdc b\u1ea3n v\u1ebd, \u0111\u1ed1i chi\u1ebfu CO\/CQ, thay th\u1ebf v\u1eadt li\u1ec7u ho\u1eb7c mua h\u00e0ng xuy\u00ean bi\u00ean gi\u1edbi. Ch\u1ee7 \u0111\u1ec1 n\u00e0y c\u0169ng l\u00e0 m\u1ed9t m\u1ea3nh gh\u00e9p quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n v\u00e0 ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng inox (ASTM, JIS, CO\/CQ), nh\u01b0ng b\u00e0i vi\u1ebft t\u1eadp trung 100% v\u00e0o quy \u0111\u1ed5i m\u00e1c.<\/p>\n<h2 id=\"toc-0-vi-sao-can-quy-doi-mac-inox-giua-astm-jis-dinen\">V\u00ec sao c\u1ea7n quy \u0111\u1ed5i m\u00e1c Inox gi\u1eefa ASTM, JIS, DIN\/EN?<\/h2>\n<p>&#8211; B\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt \u1edf Vi\u1ec7t Nam th\u01b0\u1eddng d\u00f9ng k\u00fd hi\u1ec7u JIS (SUS) ho\u1eb7c AISI, trong khi nh\u00e0 cung c\u1ea5p b\u00e1o theo DIN\/EN (1.4301, 1.4404\u2026).<br \/>\n&#8211; Thay th\u1ebf v\u1eadt li\u1ec7u: t\u00ecm \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng k\u1ef9 thu\u1eadt\u201d khi m\u00e1c ban \u0111\u1ea7u kh\u00f4ng s\u1eb5n h\u00e0ng.<br \/>\n&#8211; Ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 (CO\/CQ): x\u00e1c minh m\u1ed9t m\u00e1c theo h\u1ec7 n\u00e0y c\u00f3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u h\u1ec7 kia kh\u00f4ng.<br \/>\nL\u01b0u \u00fd: \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d ch\u1ee7 y\u1ebfu d\u1ef1a tr\u00ean th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 t\u00ednh ch\u1ea5t, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng 1:1. C\u1ea7n x\u00e9t c\u1ea3 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m (t\u1ea5m, c\u00e2y, \u1ed1ng), \u0111\u1ed9 d\u00e0y, c\u01a1 t\u00ednh v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c.<\/p>\n<h2 id=\"toc-1-cach-doc-va-lien-he-giua-he-thong-ky-hieu\">C\u00e1ch \u0111\u1ecdc v\u00e0 li\u00ean h\u1ec7 gi\u1eefa h\u1ec7 th\u1ed1ng k\u00fd hi\u1ec7u<\/h2>\n<h3>ASTM\/AISI v\u00e0 UNS<\/h3>\n<p>&#8211; AISI 304\/316\u2026 l\u00e0 t\u00ean m\u00e1c truy\u1ec1n th\u1ed1ng; ng\u00e0y nay s\u1ea3n xu\u1ea5t v\u00e0 th\u1eed nghi\u1ec7m d\u1ef1a v\u00e0o c\u00e1c ti\u00eau chu\u1ea9n ASTM (A240, A276, A312\u2026).<br \/>\n&#8211; M\u00e3 UNS (v\u00ed d\u1ee5 S30400, S31603) l\u00e0 \u0111\u1ecbnh danh h\u00f3a h\u1ecdc th\u1ed1ng nh\u1ea5t, r\u1ea5t h\u1eefu \u00edch khi \u0111\u1ed1i chi\u1ebfu gi\u1eefa h\u1ec7 th\u1ed1ng.  <\/p>\n<h3>JIS (SUS)<\/h3>\n<p>&#8211; Nh\u1eadt B\u1ea3n d\u00f9ng ti\u1ec1n t\u1ed1 SUS cho th\u00e9p kh\u00f4ng g\u1ec9 (SUS304, SUS316L\u2026) trong c\u00e1c ti\u00eau chu\u1ea9n JIS G4303 (thanh), G4304\/4305 (t\u1ea5m\/n\u00f3ng-l\u1ea1nh), G3459 (\u1ed1ng).  <\/p>\n<h3>DIN\/EN (s\u1ed1 v\u1eadt li\u1ec7u 1.xxxx)<\/h3>\n<p>&#8211; H\u1ec7 ch\u00e2u \u00c2u hi\u1ec7n h\u00e0nh l\u00e0 EN 10088; \u201cs\u1ed1 v\u1eadt li\u1ec7u\u201d (Material No.) ki\u1ec3u 1.4301, 1.4404 v\u1eabn quen g\u1ecdi l\u00e0 DIN.<br \/>\n&#8211; T\u00ean theo th\u00e0nh ph\u1ea7n nh\u01b0 X5CrNi18-10 \u0111i k\u00e8m s\u1ed1 v\u1eadt li\u1ec7u, v\u00ed d\u1ee5 1.4301 = X5CrNi18-10.<\/p>\n<h2 id=\"toc-2-bang-quy-doi-nhanh-theo-nhom-thep-khong-gi\">B\u1ea3ng quy \u0111\u1ed5i nhanh theo nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9<\/h2>\n<p>G\u1ee3i \u00fd s\u1eed d\u1ee5ng: t\u00ecm m\u00e1c b\u1ea1n c\u00f3, \u0111\u1ed1i chi\u1ebfu sang hai h\u1ec7 c\u00f2n l\u1ea1i. D\u1ea5u \u201c\u2248\u201d th\u1ec3 hi\u1ec7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ph\u1ed5 bi\u1ebfn trong c\u00f4ng nghi\u1ec7p; h\u00e3y ki\u1ec3m tra ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m v\u00e0 CO\/CQ \u0111\u1ec3 ch\u1eafc ch\u1eafn.<\/p>\n<h3>Austenitic ph\u1ed5 bi\u1ebfn (18\/8, Mo alloyed)<\/h3>\n<p>&#8211; 304: ASTM\/AISI 304 (UNS S30400) \u2248 JIS SUS304 \u2248 DIN\/EN 1.4301 (X5CrNi18-10)<br \/>\n&#8211; 304L: S30403 \u2248 SUS304L \u2248 1.4307 (X2CrNi18-9)<br \/>\n&#8211; 304H (ch\u1ecbu nhi\u1ec7t): S30409 \u2248 SUS304H \u2248 1.4948 (X6CrNi18-10)<br \/>\n&#8211; 303 (gia c\u00f4ng c\u1eaft g\u1ecdt t\u1ed1t): S30300 \u2248 SUS303 \u2248 1.4305 (X8CrNiS18-9)<br \/>\n&#8211; 316: S31600 \u2248 SUS316 \u2248 1.4401 (X5CrNiMo17-12-2)<br \/>\n&#8211; 316L: S31603 \u2248 SUS316L \u2248 1.4404 (X2CrNiMo17-12-2) [l\u1ef1a ch\u1ecdn kh\u00e1c g\u1ea7n: 1.4435 v\u1edbi Mo cao h\u01a1n]<br \/>\n&#8211; 316Ti (\u1ed5n \u0111\u1ecbnh Ti): S31635 \u2248 SUS316Ti \u2248 1.4571 (X6CrNiMoTi17-12-2)<br \/>\n&#8211; 321 (\u1ed5n \u0111\u1ecbnh Ti): S32100 \u2248 SUS321 \u2248 1.4541 (X6CrNiTi18-10)<br \/>\n&#8211; 321H (nhi\u1ec7t \u0111\u1ed9 cao): S32109 \u2248 \u2014 \u2248 1.4878 (X8CrNiTi18-10)<br \/>\n&#8211; 347 (\u1ed5n \u0111\u1ecbnh Nb): S34700 \u2248 SUS347 \u2248 1.4550 (X6CrNiNb18-10)<br \/>\n&#8211; 310S (nhi\u1ec7t \u0111\u1ed9 cao): S31008 \u2248 SUS310S \u2248 1.4845 (X8CrNi25-21)<br \/>\n&#8211; 904L (si\u00eau ch\u1ed1ng \u0103n m\u00f2n): N08904 \u2248 (JIS SUS890L) \u2248 1.4539 (X1NiCrMoCu25-20-5)<\/p>\n<h3>Austenitic Mn-Ni th\u1ea5p (kinh t\u1ebf)<\/h3>\n<p>&#8211; 201: S20100 \u2248 SUS201 \u2248 1.4372 (X12CrMnNiN17-7-5)<br \/>\n&#8211; 202: S20200 \u2248 SUS202 \u2248 1.4373 (X12CrMnNiN18-9-5)<br \/>\nGhi ch\u00fa: 201\/202 c\u00f3 Ni th\u1ea5p, Mn\/N cao; ch\u1ed1ng g\u1ec9 k\u00e9m 304, c\u00e2n nh\u1eafc k\u1ef9 m\u00f4i tr\u01b0\u1eddng.<\/p>\n<h3>Ferritic (t\u1eeb t\u00ednh, C th\u1ea5p, h\u00e0n t\u1ed1t h\u01a1n lo\u1ea1i c\u0169)<\/h3>\n<p>&#8211; 409: S40900 \u2248 SUS409 \u2248 1.4512 (X2CrTi12)<br \/>\n&#8211; 430: S43000 \u2248 SUS430 \u2248 1.4016 (X6Cr17)<br \/>\n&#8211; 430F (gia c\u00f4ng t\u1ed1t): S43020 \u2248 SUS430F \u2248 1.4105 (X8CrMoS17)<br \/>\n&#8211; 439: S43035 \u2248 SUS439 \u2248 1.4510 (X3CrTi17)<br \/>\n&#8211; 441: S43932 \u2248 SUS441 \u2248 1.4509 (X2CrTiNb18)<br \/>\n&#8211; 444 (ch\u1ed1ng g\u1ec9 cao h\u01a1n, Mo): S44400 \u2248 SUS444 \u2248 1.4521 (X2CrMoTi18-2)<\/p>\n<h3>Martensitic (c\u1ee9ng h\u00f3a nhi\u1ec7t, t\u1eeb t\u00ednh)<\/h3>\n<p>&#8211; 410: S41000 \u2248 SUS410 \u2248 1.4006 (X12Cr13)<br \/>\n&#8211; 420J1\/J2: S42000 \u2248 SUS420J1\/J2 \u2248 1.4021\/1.4028 (X20Cr13\/X30Cr13)<br \/>\n&#8211; 431 (Ni t\u0103ng b\u1ec1n): S43100 \u2248 SUS431 \u2248 1.4057 (X17CrNi16-2)<br \/>\n&#8211; 440C (\u0111\u1ed9 c\u1ee9ng cao): S44004 \u2248 SUS440C \u2248 1.4125 (X105CrMo17)<\/p>\n<h3>Duplex (ferrite + austenite)<\/h3>\n<p>&#8211; 2205: S32205\/S31803 \u2248 JIS SUS329J3L \u2248 1.4462 (X2CrNiMoN22-5-3)<br \/>\n&#8211; 2507 (super duplex): S32750 \u2248 \u2014 \u2248 1.4410 (X2CrNiMoN25-7-4)<br \/>\n&#8211; 2304 (lean duplex): S32304 \u2248 \u2014 \u2248 1.4362 (X2CrNiN23-4)<\/p>\n<h3>K\u1ebft t\u1ee7a b\u1ec1n (PH)<\/h3>\n<p>&#8211; 17-4PH: ASTM 630 (UNS S17400) \u2248 JIS SUS630 \u2248 1.4542 (X5CrNiCuNb16-4)<br \/>\n&#8211; 17-7PH (d\u1ea3i\/t\u1ea5m l\u00f2 xo): UNS S17700 \u2248 JIS SUS631 \u2248 1.4568 (X7CrNiAl17-7)<\/p>\n<h2 id=\"toc-3-sai-khac-thuong-gap-khi-quy-doi-khong-hoan-toan-11\">Sai kh\u00e1c th\u01b0\u1eddng g\u1eb7p khi quy \u0111\u1ed5i (kh\u00f4ng ho\u00e0n to\u00e0n 1:1)<\/h2>\n<p>&#8211; K\u00fd hi\u1ec7u L\/H: 304L\/316L c\u00f3 C \u2264 0,03% gi\u00fap h\u00e0n t\u1ed1t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n li\u00ean h\u1ea1t; 304H\/321H cho nhi\u1ec7t \u0111\u1ed9 cao (C cao h\u01a1n, y\u00eau c\u1ea7u c\u01a1 t\u00ednh \u1edf nhi\u1ec7t \u0111\u1ed9).<br \/>\n&#8211; 316Ti (1.4571) \u2260 316L: c\u1ea3 hai \u0111\u1ec1u h\u00e0n t\u1ed1t, nh\u01b0ng 316Ti \u1ed5n \u0111\u1ecbnh Ti, d\u00f9ng cho nhi\u1ec7t\/chu k\u1ef3 nhi\u1ec7t; 316L ph\u1ed5 bi\u1ebfn h\u01a1n trong thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m, d\u01b0\u1ee3c.<br \/>\n&#8211; 201\/202 vs 304: 201 kinh t\u1ebf, nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 pitting k\u00e9m h\u01a1n; kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho m\u00f4i tr\u01b0\u1eddng chloride, th\u1ef1c ph\u1ea9m kh\u1eaft khe.<br \/>\n&#8211; 303 vs 304: 303 d\u1ec5 gia c\u00f4ng nh\u01b0ng h\u00e0n k\u00e9m (S cao); kh\u00f4ng d\u00f9ng cho b\u1ed3n\/\u1ed1ng h\u00e0n.<br \/>\n&#8211; 316L (1.4404) vs 1.4435: c\u1ea3 hai l\u00e0 316L, 1.4435 c\u00f3 Mo cao h\u01a1n ch\u00fat; trong m\u1ed9t s\u1ed1 quy ph\u1ea1m d\u01b0\u1ee3c\/vi sinh y\u00eau c\u1ea7u 1.4435.<br \/>\n&#8211; 321 (Ti) vs 347 (Nb): \u0111\u1ec1u \u1ed5n \u0111\u1ecbnh h\u00f3a cacbit cho h\u00e0n\/ nhi\u1ec7t, 347 t\u1ed1t h\u01a1n cho m\u00f4i tr\u01b0\u1eddng kh\u1eed m\u1ea1nh ch\u1ee9a Nb \u1ed5n \u0111\u1ecbnh h\u01a1n Ti \u1edf m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n.<br \/>\n&#8211; 430 vs 430F: 430F th\u00eam S \u0111\u1ec3 c\u1eaft g\u1ecdt; c\u01a1 t\u00ednh v\u00e0 \u0111\u1ed9 dai h\u00e0n gi\u1ea3m, kh\u00f4ng thay th\u1ebf tr\u1ef1c ti\u1ebfp 430 trong k\u1ebft c\u1ea5u ch\u1ecbu t\u1ea3i.<\/p>\n<h2 id=\"toc-4-dung-quen-tieu-chuan-san-pham-tamcayong-khi-quy-do\">\u0110\u1eebng qu\u00ean ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m (t\u1ea5m\/c\u00e2y\/\u1ed1ng) khi quy \u0111\u1ed5i<\/h2>\n<p>C\u00f9ng m\u1ed9t m\u00e1c, m\u1ed7i s\u1ea3n ph\u1ea9m c\u00f3 ti\u00eau chu\u1ea9n c\u01a1 s\u1edf kh\u00e1c nhau v\u1ec1 c\u01a1 t\u00ednh, th\u1eed nghi\u1ec7m, dung sai:<br \/>\n&#8211; T\u1ea5m\/l\u00e1: ASTM A240\/A240M; JIS G4304 (n\u00f3ng), G4305 (ngu\u1ed9i); EN 10088-2.<br \/>\n&#8211; Thanh\/th\u00e9p h\u00ecnh: ASTM A276\/A479; JIS G4303; EN 10088-3.<br \/>\n&#8211; \u1ed0ng h\u00e0n\/\u0111\u00fac: ASTM A312 (austenitic), A790 (duplex); JIS G3459 (austenitic), G3463; EN 10217-7\/EN 10216-5.<br \/>\nKhi thay 1.4301 cho SUS304 ch\u1eb3ng h\u1ea1n, c\u1ea7n so \u0111\u00fang ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u01a1 t\u00ednh v\u00e0 th\u1eed nghi\u1ec7m.<\/p>\n<h2 id=\"toc-5-thanh-phan-hoa-hoc-tham-khao-tom-tat\">Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc tham kh\u1ea3o (t\u00f3m t\u1eaft)<\/h2>\n<p>&#8211; 304\/1.4301\/SUS304: Cr ~18\u201320%, Ni ~8\u201311%, C \u2264 0,08%<br \/>\n&#8211; 304L\/1.4307\/SUS304L: Cr ~17.5\u201319.5%, Ni ~8\u201310.5%, C \u2264 0,03%<br \/>\n&#8211; 316\/1.4401\/SUS316: Cr ~16.5\u201318.5%, Ni ~10\u201313%, Mo ~2\u20132.5%<br \/>\n&#8211; 316L\/1.4404\/SUS316L: Cr ~16.5\u201318.5%, Ni ~10\u201313%, Mo ~2\u20132.5%, C \u2264 0,03%<br \/>\n&#8211; 430\/1.4016\/SUS430: Cr ~16\u201318%, C \u2264 0,08%, Ni v\u1ebft<br \/>\n&#8211; 201\/1.4372\/SUS201: Cr ~16\u201318%, Ni ~3.5\u20135.5%, Mn ~5.5\u20137.5%, N \u2264 ~0.25%<br \/>\n&#8211; 2205\/1.4462\/SUS329J3L: Cr ~21\u201323%, Ni ~4.5\u20136.5%, Mo ~2.5\u20133.5%, N ~0.14\u20130.20%<br \/>\nGi\u00e1 tr\u1ecb c\u1ee5 th\u1ec3 ph\u1ee5 thu\u1ed9c ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m v\u00e0 nh\u00e0 luy\u1ec7n kim; lu\u00f4n \u0111\u1ed1i chi\u1ebfu CO\/CQ.<\/p>\n<h2 id=\"toc-6-lo-trinh-kiem-tra-tuong-duong-tung-buoc-khuyen-ngh\">L\u1ed9 tr\u00ecnh ki\u1ec3m tra t\u01b0\u01a1ng \u0111\u01b0\u01a1ng t\u1eebng b\u01b0\u1edbc (khuy\u1ebfn ngh\u1ecb th\u1ef1c h\u00e0nh)<\/h2>\n<p>1) X\u00e1c \u0111\u1ecbnh m\u00e1c y\u00eau c\u1ea7u tr\u00ean b\u1ea3n v\u1ebd v\u00e0 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m (v\u00ed d\u1ee5: SUS304 theo JIS G4304).<br \/>\n2) T\u00ecm m\u00e3 UNS v\u00e0 \u0111\u1ed1i chi\u1ebfu sang h\u1ec7 kh\u00e1c (ISO 15510, EN 10088, ASTM\/JIS).<br \/>\n3) So th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc (C, Cr, Ni, Mo, Ti\/Nb, N) v\u00e0 d\u1ea3i cho ph\u00e9p t\u1eebng ti\u00eau chu\u1ea9n.<br \/>\n4) So c\u01a1 t\u00ednh y\u00eau c\u1ea7u theo d\u1ea1ng s\u1ea3n ph\u1ea9m v\u00e0 chi\u1ec1u d\u00e0y (t\u1ed1i thi\u1ec3u Rm, Rp0.2, \u0111\u1ed9 gi\u00e3n d\u00e0i).<br \/>\n5) Xem x\u00e9t \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c (h\u00e0n, nhi\u1ec7t \u0111\u1ed9, chloride, y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t\/vi sinh).<br \/>\n6) Ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 nhi\u1ec7t luy\u1ec7n\/nhi\u1ec7t luy\u1ec7n \u1ed5n \u0111\u1ecbnh (L\/H\/Ti\/Nb), ch\u1ee9ng th\u1eed (PMI, Ferrite s\u1ed1 cho duplex), y\u00eau c\u1ea7u b\u1ed5 sung (delta ferrite cho 316L h\u00e0n, roughness b\u1ec1 m\u1eb7t).<br \/>\n7) Ph\u00ea duy\u1ec7t thay th\u1ebf b\u1eb1ng v\u0103n b\u1ea3n, l\u01b0u CO\/CQ k\u00e8m Heat No. \u0111\u1ec3 truy xu\u1ea5t.<\/p>\n<h2 id=\"toc-7-vi-du-quy-doi-thuc-te\">V\u00ed d\u1ee5 quy \u0111\u1ed5i th\u1ef1c t\u1ebf<\/h2>\n<p>&#8211; Tr\u01b0\u1eddng h\u1ee3p 1: B\u1ea3n v\u1ebd y\u00eau c\u1ea7u SUS304 cho b\u1ed3n h\u00e0n. Nh\u00e0 cung c\u1ea5p c\u00f3 1.4307.<br \/>\nGi\u1ea3i ph\u00e1p: 1.4307 (304L) th\u01b0\u1eddng thay \u0111\u01b0\u1ee3c SUS304, \u0111\u1eb7c bi\u1ec7t cho h\u00e0n do C th\u1ea5p; ki\u1ec3m tra c\u01a1 t\u00ednh theo EN 10088-2 so v\u1edbi y\u00eau c\u1ea7u. N\u1ebfu m\u00f4i tr\u01b0\u1eddng chloride nh\u1eb9, c\u00e2n nh\u1eafc 316L n\u1ebfu c\u1ea7n ch\u1ed1ng r\u1ed7 t\u1ed1t h\u01a1n.<\/p>\n<p>&#8211; Tr\u01b0\u1eddng h\u1ee3p 2: Y\u00eau c\u1ea7u 316L trong h\u1ec7 th\u1ed1ng n\u01b0\u1edbc tinh khi\u1ebft d\u01b0\u1ee3c ph\u1ea9m. Nh\u00e0 cung c\u1ea5p b\u00e1o 1.4435.<br \/>\nGi\u1ea3i ph\u00e1p: 1.4435 l\u00e0 bi\u1ebfn th\u1ec3 316L v\u1edbi Mo cao h\u01a1n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn ho\u1eb7c \u01b0u ti\u00ean trong d\u01b0\u1ee3c\/vi sinh; x\u00e1c nh\u1eadn b\u1ec1 m\u1eb7t v\u00e0 th\u1eed nghi\u1ec7m vi sinh theo URS.<\/p>\n<p>&#8211; Tr\u01b0\u1eddng h\u1ee3p 3: C\u1ea7n thay SUS304 b\u1eb1ng 201 \u0111\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed cho h\u1ea1ng m\u1ee5c trong nh\u00e0, kh\u00f4 r\u00e1o.<br \/>\nGi\u1ea3i ph\u00e1p: \u0110\u01b0\u1ee3c n\u1ebfu kh\u00f4ng ti\u1ebfp x\u00fac chloride\/\u1ea9m v\u00e0 kh\u00f4ng y\u00eau c\u1ea7u h\u00e0n ph\u1ee9c t\u1ea1p; n\u00eau r\u00f5 thay \u0111\u1ed5i trong duy\u1ec7t v\u1eadt t\u01b0, g\u1eafn nh\u00e3n \u0111\u1ec3 tr\u00e1nh nh\u1ea7m l\u1eabn \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi.<\/p>\n<h2 id=\"toc-8-kiem-tra-cocq-va-chung-chi-vat-lieu\">Ki\u1ec3m tra CO\/CQ v\u00e0 ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u<\/h2>\n<p>&#8211; CO (Certificate of Origin): ngu\u1ed3n g\u1ed1c xu\u1ea5t x\u1ee9.<br \/>\n&#8211; CQ\/MTC (Mill Test Certificate): theo EN 10204 (th\u01b0\u1eddng 3.1), ghi r\u00f5 m\u00e1c, ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m, Heat No., th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh, NDT (n\u1ebfu c\u00f3).<br \/>\n&#8211; Tr\u00ean MTC n\u00ean c\u00f3: m\u00e1c k\u00e9p (v\u00ed d\u1ee5 316\/316L), m\u00e3 UNS, s\u1ed1 v\u1eadt li\u1ec7u (1.4404), ti\u00eau chu\u1ea9n th\u1eed (ASTM\/EN\/JIS), k\u1ebft qu\u1ea3 PMI.<br \/>\n&#8211; \u0110\u1ed1i v\u1edbi duplex: ki\u1ec3m tra N, PREN, ferrite number (FN) v\u00e0 th\u1eed \u0103n m\u00f2n G48 n\u1ebfu \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n<h2 id=\"toc-9-nguon-tham-khao-chinh\">Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh<\/h2>\n<p>&#8211; ISO 15510: Stainless steels \u2014 Chemical composition<br \/>\n&#8211; EN 10088-1\/2\/3: Stainless steels (th\u00e0nh ph\u1ea7n v\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt cho t\u1ea5m\/thanh)<br \/>\n&#8211; ASTM A240, A276, A479, A312, A790: ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m inox ph\u1ed5 bi\u1ebfn<br \/>\n&#8211; JIS G4303, G4304, G4305, G3459: th\u00e9p kh\u00f4ng g\u1ec9 thanh\/t\u1ea5m\/\u1ed1ng<br \/>\n&#8211; EN 10216-5, EN 10217-7: \u1ed0ng th\u00e9p kh\u00f4ng g\u1ec9<br \/>\n&#8211; Outokumpu Stainless Steel Finder; Sandvik\/Alleima datasheets; Nippon Steel catalogs (\u0111\u1ed1i chi\u1ebfu m\u00e1c v\u00e0 t\u00ednh ch\u1ea5t)<\/p>\n<h2 id=\"toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Quy \u0111\u1ed5i m\u00e1c inox gi\u1eefa ASTM\/AISI, JIS v\u00e0 DIN\/EN kh\u1ea3 thi v\u00e0 ph\u1ed5 bi\u1ebfn, nh\u01b0ng c\u1ea7n d\u1ef1a tr\u00ean m\u00e3 UNS, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m v\u00e0 \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng.<br \/>\n&#8211; C\u00e1c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111i\u1ec3n h\u00ecnh: 304 \u2194 SUS304 \u2194 1.4301; 316L \u2194 SUS316L \u2194 1.4404; 430 \u2194 SUS430 \u2194 1.4016; 17-4PH \u2194 SUS630 \u2194 1.4542; 2205 \u2194 SUS329J3L \u2194 1.4462.<br \/>\n&#8211; Tr\u00e1nh thay th\u1ebf m\u00f9 qu\u00e1ng gi\u1eefa c\u00e1c bi\u1ebfn th\u1ec3 L\/H\/Ti\/Nb v\u00e0 gi\u1eefa c\u00e1c m\u00e1c c\u00f3 ph\u1ee5 gia c\u1eaft g\u1ecdt (303\/430F). Lu\u00f4n ki\u1ec3m tra CO\/CQ v\u00e0 ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng cho s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3.<br \/>\nC\u1ea7n danh m\u1ee5c quy \u0111\u1ed5i ph\u00f9 h\u1ee3p d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 \u0111\u1ec3 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb m\u00e1c thay th\u1ebf t\u1ed1i \u01b0u theo m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c, h\u00e0n v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi.<\/p>\n<p>Contact Inox Cuong Thinh for more advice and the best price. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tra c\u1ee9u m\u00e1c inox t\u01b0\u01a1ng \u0111\u01b0\u01a1ng gi\u1eefa ASTM, JIS v\u00e0 DIN\/EN: 304, 316, 201, 430, 321, 17-4PH, duplex\u2026 k\u00e8m l\u01b0u \u00fd sai kh\u00e1c, ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng v\u00e0 ki\u1ec3m tra CO\/CQ.<\/p>\n","protected":false},"author":7,"featured_media":1061,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1447","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\/1447","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=1447"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1447\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1061"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}