{"id":1451,"date":"2025-12-20T00:34:47","date_gmt":"2025-12-19T17:34:47","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/astm-a312-a270-va-tieu-chuan-ong-inox-cong-nghiep-can-biet\/"},"modified":"2025-12-20T00:34:47","modified_gmt":"2025-12-19T17:34:47","slug":"astm-a312-a270-va-tieu-chuan-ong-inox-cong-nghiep-can-biet","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/astm-a312-a270-va-tieu-chuan-ong-inox-cong-nghiep-can-biet\/","title":{"rendered":"ASTM A312, A270 v\u00e0 ti\u00eau chu\u1ea9n \u1ed1ng inox c\u00f4ng nghi\u1ec7p 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-tong-quan-nhom-tieu-chuan-ong-inox-duoc-dung-pho-b\">T\u1ed5ng quan nh\u00f3m ti\u00eau chu\u1ea9n \u1ed1ng inox \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn<\/a><\/li>\n<li><a href=\"#toc-1-astm-a312-tieu-chuan-xuong-song-cho-ong-inox-cong-\">ASTM A312: ti\u00eau chu\u1ea9n \u201cx\u01b0\u01a1ng s\u1ed1ng\u201d cho \u1ed1ng inox c\u00f4ng nghi\u1ec7p<\/a><\/li>\n<li><a href=\"#toc-2-astm-a270-ong-inox-vi-sinh-cho-thuc-pham-duoc\">ASTM A270: \u1ed1ng inox vi sinh cho th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c<\/a><\/li>\n<li><a href=\"#toc-3-cac-tieu-chuan-lien-quan-thuong-gap-va-khi-nao-dun\">C\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan th\u01b0\u1eddng g\u1eb7p v\u00e0 khi n\u00e0o d\u00f9ng<\/a><\/li>\n<li><a href=\"#toc-4-so-sanh-nhanh-a312-a270-a269-chon-the-nao\">So s\u00e1nh nhanh: A312, A270, A269 \u2013 ch\u1ecdn th\u1ebf n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-5-kich-thuoc-do-day-hieu-dung-schedule-s-cua-inox\">K\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y: hi\u1ec3u \u0111\u00fang \u201cSchedule S\u201d c\u1ee7a inox<\/a><\/li>\n<li><a href=\"#toc-6-giay-to-chung-tu-chat-luong-can-co\">Gi\u1ea5y t\u1edd \u2013 ch\u1ee9ng t\u1eeb ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7n c\u00f3<\/a><\/li>\n<li><a href=\"#toc-7-checklist-kiem-tra-khi-nhan-ong-inox\">Checklist ki\u1ec3m tra khi nh\u1eadn \u1ed1ng inox<\/a><\/li>\n<li><a href=\"#toc-8-nhung-loi-chon-tieu-chuan-thuong-gap-va-cach-tranh\">Nh\u1eefng l\u1ed7i ch\u1ecdn ti\u00eau chu\u1ea9n th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-9-hoi-nhanh-dap-gon\">H\u1ecfi nhanh \u2013 \u0111\u00e1p g\u1ecdn<\/a><\/li>\n<li><a href=\"#toc-10-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong c\u00e1c d\u1ef1 \u00e1n \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng nghi\u1ec7p, vi\u1ec7c ch\u1ecdn \u0111\u00fang ti\u00eau chu\u1ea9n \u1ed1ng inox quy\u1ebft \u0111\u1ecbnh tu\u1ed5i th\u1ecd, an to\u00e0n v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh. B\u00e0i vi\u1ebft n\u00e0y t\u1eadp trung v\u00e0o c\u00e1c ti\u00eau chu\u1ea9n c\u1ed1t l\u00f5i cho \u1ed1ng inox c\u00f4ng nghi\u1ec7p \u2013 \u0111\u1eb7c bi\u1ec7t l\u00e0 ASTM A312 (quy chu\u1ea9n \u201cx\u01b0\u01a1ng s\u1ed1ng\u201d cho \u1ed1ng austenitic ph\u1ee5c v\u1ee5 \u0103n m\u00f2n\/nhi\u1ec7t \u0111\u1ed9 cao) v\u00e0 ASTM A270 (\u1ed1ng vi sinh cho th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c), c\u00f9ng nh\u1eefng ti\u00eau chu\u1ea9n li\u00ean quan th\u01b0\u1eddng d\u00f9ng t\u1ea1i Vi\u1ec7t Nam. \u0110\u00e2y l\u00e0 ph\u1ea7n quan tr\u1ecdng trong b\u1ee9c tranh h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n \u2013 ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng inox (ASTM, JIS, CO\/CQ), nh\u01b0ng b\u00e0i vi\u1ebft \u0111\u1ee7 \u0111\u1ed9c l\u1eadp \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng ngay.<\/p>\n<h2 id=\"toc-0-tong-quan-nhom-tieu-chuan-ong-inox-duoc-dung-pho-b\">T\u1ed5ng quan nh\u00f3m ti\u00eau chu\u1ea9n \u1ed1ng inox \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn<\/h2>\n<p>&#8211; ASTM (M\u1ef9): A312, A270, A269, A249, A213, A358; k\u00edch th\u01b0\u1edbc\/\u0111\u1ed9 d\u00e0y theo ASME B36.19M.<br \/>\n&#8211; ASME\/3-A: ASME BPE (vi sinh \u2013 d\u01b0\u1ee3c), 3-A SSI (th\u1ef1c ph\u1ea9m \u2013 s\u1eefa).<br \/>\n&#8211; EN\/ISO (Ch\u00e2u \u00c2u): EN 10216-5 (\u0111\u00fac \u2013 seamless), EN 10217-7 (h\u00e0n \u2013 welded), ISO 2037 (th\u1ef1c ph\u1ea9m).<br \/>\n&#8211; JIS (Nh\u1eadt): JIS G3459 (\u1ed1ng inox d\u00f9ng chung), JIS G3463 (n\u1ed3i h\u01a1i \u2013 trao \u0111\u1ed5i nhi\u1ec7t).<\/p>\n<p>M\u1ed7i ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh ph\u1ea1m vi s\u1eed d\u1ee5ng, m\u00e1c th\u00e9p, tr\u1ea1ng th\u00e1i nhi\u1ec7t luy\u1ec7n, y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m, sai s\u1ed1 k\u00edch th\u01b0\u1edbc v\u00e0 d\u1ea5u nh\u00e3n \u2013 gi\u00fap k\u1ef9 s\u01b0 \u201cn\u00f3i c\u00f9ng m\u1ed9t ng\u00f4n ng\u1eef\u201d v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 gi\u00e1m s\u00e1t.<\/p>\n<h2 id=\"toc-1-astm-a312-tieu-chuan-xuong-song-cho-ong-inox-cong-\">ASTM A312: ti\u00eau chu\u1ea9n \u201cx\u01b0\u01a1ng s\u1ed1ng\u201d cho \u1ed1ng inox c\u00f4ng nghi\u1ec7p<\/h2>\n<h3>Ph\u1ea1m vi v\u00e0 \u1ee9ng d\u1ee5ng<\/h3>\n<p>&#8211; \u1ed0ng inox austenitic d\u1ea1ng \u0111\u00fac (seamless \u2013 SML), h\u00e0n (welded \u2013 WLD) v\u00e0 gia c\u00f4ng ngu\u1ed9i m\u1ea1nh (HCW).<br \/>\n&#8211; D\u00f9ng cho m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n v\u00e0\/ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 cao trong h\u00f3a ch\u1ea5t, d\u1ea7u kh\u00ed, x\u1eed l\u00fd n\u01b0\u1edbc, n\u0103ng l\u01b0\u1ee3ng.<\/p>\n<h3>M\u00e1c th\u00e9p th\u01b0\u1eddng d\u00f9ng<\/h3>\n<p>&#8211; TP304\/304L, TP316\/316L, TP321\/347, 310S, 904L.<br \/>\n&#8211; V\u1edbi m\u00f4i tr\u01b0\u1eddng c\u00f3 Cl- cao ho\u1eb7c y\u00eau c\u1ea7u ch\u1ed1ng pitting crevice cao, c\u00e2n nh\u1eafc v\u1eadt li\u1ec7u kh\u00e1c chu\u1ea9n A312 (v\u00ed d\u1ee5 duplex theo ASTM A790).<\/p>\n<h3>\u0110i\u1ec1u ki\u1ec7n giao h\u00e0ng v\u00e0 ki\u1ec3m tra<\/h3>\n<p>&#8211; Nhi\u1ec7t luy\u1ec7n: gi\u1ea3i b\u1ec1n\/ho\u00e0n nguy\u00ean (solution annealed) v\u00e0 pickling\/bright annealed.<br \/>\n&#8211; Th\u1eed nghi\u1ec7m: th\u1ee7y l\u1ef1c ho\u1eb7c NDT (UT\/ET) cho t\u1eebng \u1ed1ng; th\u1eed b\u1eb9t\/lo\u00e9\/loe (t\u00f9y lo\u1ea1i \u1ed1ng); c\u01a1 t\u00ednh theo m\u00e1c \u2013 chi\u1ec1u d\u00e0y.<br \/>\n&#8211; K\u00edch th\u01b0\u1edbc: theo ASME B36.19M (sch 5S\/10S\/40S\/80S\u2026). \u0110\u1ea7u \u1ed1ng PE\/BE theo y\u00eau c\u1ea7u.<br \/>\n&#8211; D\u1ea5u nh\u00e3n: A312\/A312M, m\u00e1c, k\u00edch th\u01b0\u1edbc, m\u1ee9c schedule, l\u00f2\/t\u1eadp nhi\u1ec7t (heat number) \u0111\u1ec3 truy xu\u1ea5t.<\/p>\n<p>\u0110i\u1ec3m m\u1ea5u ch\u1ed1t: A312 ph\u00f9 h\u1ee3p cho h\u1ea7u h\u1ebft tuy\u1ebfn \u1ed1ng c\u00f4ng ngh\u1ec7 \u0103n m\u00f2n \u2013 \u00e1p l\u1ef1c khi d\u1ef1 \u00e1n y\u00eau c\u1ea7u \u201c\u1ed1ng ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p\u201d.<\/p>\n<h2 id=\"toc-2-astm-a270-ong-inox-vi-sinh-cho-thuc-pham-duoc\">ASTM A270: \u1ed1ng inox vi sinh cho th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c<\/h2>\n<h3>Ph\u1ea1m vi v\u00e0 \u0111\u1eb7c t\u00ednh<\/h3>\n<p>&#8211; \u1ed0ng inox austenitic (seamless\/h\u00e0n) d\u00f9ng cho ng\u00e0nh s\u1eefa, th\u1ef1c ph\u1ea9m, \u0111\u1ed3 u\u1ed1ng, d\u01b0\u1ee3c \u2013 n\u01a1i y\u00eau c\u1ea7u v\u1ec7 sinh b\u1ec1 m\u1eb7t cao, d\u1ec5 CIP\/SIP.<br \/>\n&#8211; M\u00e1c ph\u1ed5 bi\u1ebfn: 304\/304L, 316\/316L; 316L th\u01b0\u1eddng \u01b0u ti\u00ean cho d\u01b0\u1ee3c, s\u1eefa, \u0111\u1ed3 u\u1ed1ng c\u00f3 CIP.<\/p>\n<h3>Y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t v\u00e0 m\u1ed1i h\u00e0n<\/h3>\n<p>&#8211; B\u1ec1 m\u1eb7t trong\/ngo\u00e0i s\u1ea1ch, kh\u00f4ng t\u1ea1p ch\u1ea5t, kh\u00f4ng x\u1ec9, kh\u00f4ng h\u1ed1 x\u01b0\u1edbc s\u1eafc; m\u1ed1i h\u00e0n \u0111\u01b0\u1ee3c x\u1eed l\u00fd lo\u1ea1i b\u1ecf g\u00e2n (bead) v\u00e0 \u0111\u00e1nh b\u00f3ng ph\u00f9 h\u1ee3p.<br \/>\n&#8211; \u0110\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t (Ra) c\u1ea7n n\u00eau r\u00f5 trong \u0111\u1eb7t h\u00e0ng; th\u1ef1c t\u1ebf c\u00f4ng nghi\u1ec7p th\u01b0\u1eddng y\u00eau c\u1ea7u:<br \/>\n  + Th\u1ef1c ph\u1ea9m: ~0,8 \u00b5m Ra ho\u1eb7c t\u1ed1t h\u01a1n.<br \/>\n  + D\u01b0\u1ee3c\/vi sinh: theo ASME BPE (v\u00ed d\u1ee5 SF1 ~0,51 \u00b5m, SF4 ~0,38 \u00b5m sau \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng).<br \/>\n&#8211; C\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng (EP) \u0111\u1ec3 gi\u1ea3m Ra v\u00e0 t\u1ea1o b\u1ec1 m\u1eb7t th\u1ee5 \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh.<\/p>\n<h3>Ki\u1ec3m tra v\u00e0 \u0111\u00f3ng g\u00f3i<\/h3>\n<p>&#8211; Th\u1eed th\u1ee7y l\u1ef1c\/NDT 100%, ki\u1ec3m tra b\u1ec1 m\u1eb7t n\u1ed9i\/ngo\u1ea1i; c\u00f3 th\u1ec3 y\u00eau c\u1ea7u n\u1ed9i soi (borescope) \u0111\u1ed1i v\u1edbi d\u01b0\u1ee3c\/aseptic.<br \/>\n&#8211; \u0110\u00f3ng g\u00f3i s\u1ea1ch, b\u1ecbt \u0111\u1ea7u \u1ed1ng, c\u00f3 t\u00fai\/bao b\u1ea3o v\u1ec7 \u0111\u1ec3 tr\u00e1nh nhi\u1ec5m b\u1ea9n h\u1ea1t\/ d\u1ea7u.<\/p>\n<p>Khi d\u1ef1 \u00e1n y\u00eau c\u1ea7u \u201c\u1ed1ng vi sinh\u201d, h\u00e3y ghi r\u00f5 ti\u00eau chu\u1ea9n A270 v\u00e0 m\u1ee9c Ra\/\u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng\/\u0111\u1ed9 s\u1ea1ch \u0111\u1ec3 tr\u00e1nh nh\u1eadn h\u00e0ng \u201cg\u1ea7n gi\u1ed1ng\u201d nh\u01b0ng kh\u00f4ng \u0111\u1ea1t.<\/p>\n<h2 id=\"toc-3-cac-tieu-chuan-lien-quan-thuong-gap-va-khi-nao-dun\">C\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan th\u01b0\u1eddng g\u1eb7p v\u00e0 khi n\u00e0o d\u00f9ng<\/h2>\n<p>&#8211; ASTM A269: \u1ed0ng inox austenitic (seamless\/h\u00e0n) cho d\u1ecbch v\u1ee5 chung\/instrument. Th\u01b0\u1eddng d\u00f9ng cho \u1ed1ng nh\u1ecf, coil, \u0111o l\u01b0\u1eddng, c\u1ea5p ch\u1ea5t l\u1ecfng s\u1ea1ch nh\u01b0ng kh\u00f4ng b\u1eaft bu\u1ed9c finish vi sinh nh\u01b0 A270.<br \/>\n&#8211; ASTM A249: \u1ed0ng h\u00e0n austenitic cho n\u1ed3i h\u01a1i, qu\u00e1 nhi\u1ec7t, trao \u0111\u1ed5i nhi\u1ec7t; y\u00eau c\u1ea7u x\u1eed l\u00fd m\u1ed1i h\u00e0n, th\u1eed ng\u1eb7t ngh\u00e8o cho \u1ee9ng d\u1ee5ng nhi\u1ec7t.<br \/>\n&#8211; ASTM A213: \u1ed0ng \u0111\u00fac h\u1ee3p kim\/inox cho n\u1ed3i h\u01a1i \u2013 trao \u0111\u1ed5i nhi\u1ec7t (seamless).<br \/>\n&#8211; ASTM A358: \u1ed0ng h\u00e0n EF-weld cho nhi\u1ec7t \u0111\u1ed9\/\u00e1p l\u1ef1c cao \u0111\u01b0\u1eddng k\u00ednh l\u1edbn.<br \/>\n&#8211; ASME B36.19M: K\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y \u1ed1ng inox; ph\u00e2n bi\u1ec7t \u201cS\u201d (5S, 10S, 40S, 80S) v\u1edbi B36.10 (th\u00e9p carbon).<br \/>\n&#8211; ISO 2037: \u1ed0ng inox cho th\u1ef1c ph\u1ea9m (metric), t\u01b0\u01a1ng \u0111\u01b0\u01a1ng m\u1ee5c \u0111\u00edch A270 nh\u01b0ng theo h\u1ec7 ISO\/EN.<br \/>\n&#8211; EN 10216-5 (SML)\/EN 10217-7 (WLD): \u1ed0ng inox ch\u1ed1ng \u0103n m\u00f2n, m\u00e1c 1.4301 (304), 1.4404 (316L)\u2026 ph\u1ed5 bi\u1ebfn t\u1ea1i EU.<br \/>\n&#8211; JIS G3459: \u1ed0ng inox d\u00f9ng chung; JIS G3463: \u1ed1ng cho n\u1ed3i h\u01a1i \u2013 trao \u0111\u1ed5i nhi\u1ec7t.<\/p>\n<h2 id=\"toc-4-so-sanh-nhanh-a312-a270-a269-chon-the-nao\">So s\u00e1nh nhanh: A312, A270, A269 \u2013 ch\u1ecdn th\u1ebf n\u00e0o?<\/h2>\n<p>&#8211; A312: Tuy\u1ebfn \u1ed1ng c\u00f4ng ngh\u1ec7 \u0103n m\u00f2n\/\u00e1p l\u1ef1c \u2013 nhi\u1ec7t \u0111\u1ed9; \u0111\u01b0\u1eddng k\u00ednh NPS \u0111a d\u1ea1ng; d\u1ef1 \u00e1n c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, x\u1eed l\u00fd n\u01b0\u1edbc, d\u1ea7u kh\u00ed.<br \/>\n&#8211; A270: \u1ed0ng vi sinh, \u01b0u ti\u00ean b\u1ec1 m\u1eb7t s\u1ea1ch, Ra th\u1ea5p, m\u1ed1i h\u00e0n x\u1eed l\u00fd; ng\u00e0nh s\u1eefa \u2013 th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c.<br \/>\n&#8211; A269: \u1ed0ng\/tube c\u1ee1 nh\u1ecf cho d\u1ecbch v\u1ee5 chung, d\u1ee5ng c\u1ee5 \u0111o \u2013 \u0111i\u1ec1u khi\u1ec3n; khi kh\u00f4ng c\u1ea7n finish vi sinh.<\/p>\n<p>G\u1ee3i \u00fd nhanh theo \u1ee9ng d\u1ee5ng:<br \/>\n&#8211; H\u00f3a ch\u1ea5t \u0103n m\u00f2n, n\u01b0\u1edbc bi\u1ec3n nh\u1eb9: A312 TP316L, sch 10S\/40S t\u00f9y \u00e1p l\u1ef1c.<br \/>\n&#8211; D\u00e2y chuy\u1ec1n \u0111\u1ed3 u\u1ed1ng\/s\u1eefa: A270 TP316L, y\u00eau c\u1ea7u Ra \u2264 0,8 \u00b5m ho\u1eb7c theo ASME BPE; m\u1ed1i h\u00e0n orbital.<br \/>\n&#8211; Trao \u0111\u1ed5i nhi\u1ec7t: A249 (welded) ho\u1eb7c A213 (seamless) TP304L\/316L theo t\u00ednh to\u00e1n truy\u1ec1n nhi\u1ec7t \u2013 \u00e1p l\u1ef1c.<br \/>\n&#8211; D\u01b0\u1ee3c\/biotech: \u1ed0ng A270 k\u1ebft h\u1ee3p ph\u1ee5 ki\u1ec7n\/\u1ed1ng theo ASME BPE (SF1-SF4), truy xu\u1ea5t n\u00f3ng ch\u1ea3y nghi\u00eam ng\u1eb7t.<\/p>\n<h2 id=\"toc-5-kich-thuoc-do-day-hieu-dung-schedule-s-cua-inox\">K\u00edch th\u01b0\u1edbc \u2013 \u0111\u1ed9 d\u00e0y: hi\u1ec3u \u0111\u00fang \u201cSchedule S\u201d c\u1ee7a inox<\/h2>\n<p>&#8211; D\u00f9ng ASME B36.19M: sch 5S, 10S, 40S, 80S\u2026 \u201cS\u201d bi\u1ec3u th\u1ecb series cho inox.<br \/>\n&#8211; L\u01b0u \u00fd s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u1ed9 d\u00e0y gi\u1eefa B36.19M (inox) v\u00e0 B36.10 (th\u00e9p carbon) \u1edf m\u1ed9t s\u1ed1 k\u00edch th\u01b0\u1edbc \u2013 kh\u00f4ng d\u00f9ng l\u1eabn.<br \/>\n&#8211; T\u00ednh b\u1ec1n th\u00e0nh \u1ed1ng theo ASME B31.3\/B31.1; \u0111\u1eebng ch\u1ecdn schedule ch\u1ec9 theo \u201cth\u00f3i quen\u201d.<\/p>\n<h2 id=\"toc-6-giay-to-chung-tu-chat-luong-can-co\">Gi\u1ea5y t\u1edd \u2013 ch\u1ee9ng t\u1eeb ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7n c\u00f3<\/h2>\n<p>&#8211; Mill Test Certificate (MTC) theo EN 10204 lo\u1ea1i 3.1 ho\u1eb7c 3.2 (khi c\u00f3 b\u00ean th\u1ee9 ba).<br \/>\n&#8211; CO\/CQ: Gi\u1ea5y ch\u1ee9ng nh\u1eadn xu\u1ea5t x\u1ee9\/ch\u1ea5t l\u01b0\u1ee3ng \u0111i k\u00e8m l\u00f4 h\u00e0ng; \u0111\u1ed1i chi\u1ebfu heat number tr\u00ean \u1ed1ng \u2013 ch\u1ee9ng ch\u1ec9.<br \/>\n&#8211; B\u00e1o c\u00e1o NDT\/hydrotest, ch\u1ee9ng nh\u1eadn nhi\u1ec7t luy\u1ec7n\/\u0111\u00e1nh b\u00f3ng\/\u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng (n\u1ebfu c\u00f3).<br \/>\n&#8211; K\u1ebft qu\u1ea3 PMI (Positive Material Identification) khi d\u1ef1 \u00e1n y\u00eau c\u1ea7u x\u00e1c nh\u1eadn m\u00e1c t\u1ea1i ch\u1ed7.<\/p>\n<h2 id=\"toc-7-checklist-kiem-tra-khi-nhan-ong-inox\">Checklist ki\u1ec3m tra khi nh\u1eadn \u1ed1ng inox<\/h2>\n<p>&#8211; \u0110\u1ed1i chi\u1ebfu ti\u00eau chu\u1ea9n ghi tr\u00ean \u1ed1ng: ASTM A312\/A270\u2026 m\u00e1c TP316L\/304L, k\u00edch th\u01b0\u1edbc, schedule, heat number.<br \/>\n&#8211; K\u00edch th\u01b0\u1edbc: \u0111o OD, WT, \u0111\u1ed9 th\u1eb3ng, chi\u1ec1u d\u00e0i; ki\u1ec3m tra \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t m\u1ed1i h\u00e0n (\u1ed1ng h\u00e0n).<br \/>\n&#8211; T\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t: kh\u00f4ng n\u1ee9t, r\u1ed7, x\u01b0\u1edbc s\u00e2u; \u1ed1ng vi sinh ph\u1ea3i s\u1ea1ch, b\u1ecbt \u0111\u1ea7u, kh\u00f4ng d\u1ea7u \u2013 b\u1ee5i; m\u1ed1i h\u00e0n \u0111\u01b0\u1ee3c m\u00e0i ph\u1eb3ng (A270).<br \/>\n&#8211; Ch\u1ee9ng ch\u1ec9: MTC 3.1 kh\u1edbp heat; NDT\/hydrotest theo y\u00eau c\u1ea7u; b\u00e1o c\u00e1o Ra n\u1ebfu y\u00eau c\u1ea7u vi sinh\/d\u01b0\u1ee3c.<br \/>\n&#8211; Th\u1eed nhanh t\u1ea1i ch\u1ed7: PMI ng\u1eabu nhi\u00ean; ki\u1ec3m tra m\u1ed1i h\u00e0n b\u1eb1ng \u00e1nh s\u00e1ng\/borescope (khi quy \u0111\u1ecbnh).<br \/>\n&#8211; Bao g\u00f3i: n\u1eb9p \u2013 th\u00f9ng \u2013 m\u00e0ng b\u1ecdc c\u00f2n nguy\u00ean, c\u00f3 bi\u1ec7n ph\u00e1p ch\u1ed1ng \u1ea9m \u2013 tr\u1ea7y.<\/p>\n<h2 id=\"toc-8-nhung-loi-chon-tieu-chuan-thuong-gap-va-cach-tranh\">Nh\u1eefng l\u1ed7i ch\u1ecdn ti\u00eau chu\u1ea9n th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/h2>\n<p>&#8211; D\u00f9ng A269 cho d\u00e2y chuy\u1ec1n c\u1ea7n finish vi sinh: b\u1ec1 m\u1eb7t\/\u0111\u1ed9 s\u1ea1ch kh\u00f4ng \u0111\u1ee7. Gi\u1ea3i ph\u00e1p: A270 ho\u1eb7c ASME BPE.<br \/>\n&#8211; Ch\u1ecdn schedule theo \u201ctruy\u1ec1n mi\u1ec7ng\u201d: d\u1eabn \u0111\u1ebfn thi\u1ebfu b\u1ec1n ho\u1eb7c th\u1eeba chi ph\u00ed. Gi\u1ea3i ph\u00e1p: t\u00ednh to\u00e1n theo B31.3.<br \/>\n&#8211; Nh\u1ea7m B36.10 v\u00e0 B36.19: sai \u0111\u1ed9 d\u00e0y \u2013 ph\u1ee5 ki\u1ec7n kh\u00f4ng kh\u1edbp. Gi\u1ea3i ph\u00e1p: ghi r\u00f5 \u201cB36.19M, sch 10S\/40S\u2026\u201d.<br \/>\n&#8211; Kh\u00f4ng quy \u0111\u1ecbnh Ra\/m\u1ed1i h\u00e0n cho th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c: nh\u00e0 cung c\u1ea5p giao h\u00e0ng \u201cvi sinh\u201d nh\u01b0ng kh\u00f4ng \u0111\u1ea1t. Gi\u1ea3i ph\u00e1p: ch\u1ec9 r\u00f5 Ra, EP, ki\u1ec3m tra 100% v\u00e0 t\u00e0i li\u1ec7u k\u00e8m theo.<\/p>\n<h2 id=\"toc-9-hoi-nhanh-dap-gon\">H\u1ecfi nhanh \u2013 \u0111\u00e1p g\u1ecdn<\/h2>\n<p>&#8211; A312 kh\u00e1c A269 th\u1ebf n\u00e0o? A312 cho \u1ed1ng c\u00f4ng ngh\u1ec7 \u0103n m\u00f2n\/\u00e1p l\u1ef1c (pipe), A269 cho tube d\u1ecbch v\u1ee5 chung; y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m v\u00e0 ph\u1ea1m vi d\u00f9ng kh\u00e1c nhau.<br \/>\n&#8211; A270 c\u00f3 b\u1eaft bu\u1ed9c \u0111i\u1ec7n \u0111\u00e1nh b\u00f3ng? Kh\u00f4ng b\u1eaft bu\u1ed9c; t\u00f9y y\u00eau c\u1ea7u Ra v\u00e0 ng\u00e0nh. D\u01b0\u1ee3c\/biotech th\u01b0\u1eddng y\u00eau c\u1ea7u EP theo ASME BPE.<br \/>\n&#8211; 304 hay 316L? 316L ch\u1ed1ng pitting\/chloride t\u1ed1t h\u01a1n, ph\u00f9 h\u1ee3p CIP\/SIP; 304 \u0111\u1ee7 d\u00f9ng cho m\u00f4i tr\u01b0\u1eddng \u00edt \u0103n m\u00f2n.<br \/>\n&#8211; 40S c\u00f3 b\u1eb1ng schedule 40? Kh\u00f4ng n\u00ean coi l\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tuy\u1ec7t \u0111\u1ed1i; tham chi\u1ebfu B36.19M (inox) v\u00e0 \u0111\u1ed1i chi\u1ebfu catalog ph\u1ee5 ki\u1ec7n.<\/p>\n<h2 id=\"toc-10-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; ASTM A312\/A312M \u2013 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes: astm.org<br \/>\n&#8211; ASTM A270 \u2013 Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing: astm.org<br \/>\n&#8211; ASTM A269, A249, A213, A358: astm.org<br \/>\n&#8211; ASME B36.19M \u2013 Stainless Steel Pipe: asme.org<br \/>\n&#8211; ASME BPE \u2013 Bioprocessing Equipment Standard: asme.org<br \/>\n&#8211; 3-A Sanitary Standards (\u1ed1ng \u2013 ph\u1ee5 ki\u1ec7n ng\u00e0nh s\u1eefa\/th\u1ef1c ph\u1ea9m): 3-a.org<br \/>\n&#8211; EN 10216-5, EN 10217-7: ti\u00eau chu\u1ea9n \u1ed1ng inox ch\u00e2u \u00c2u (CEN\/BSI\/DIN)<br \/>\n&#8211; JIS G3459, JIS G3463: jsa.or.jp<\/p>\n<h2 id=\"toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; ASTM A312 l\u00e0 ti\u00eau chu\u1ea9n n\u1ec1n cho \u1ed1ng inox c\u00f4ng nghi\u1ec7p ch\u1ecbu \u0103n m\u00f2n \u2013 nhi\u1ec7t \u0111\u1ed9; ASTM A270 l\u00e0 ti\u00eau chu\u1ea9n ch\u1ee7 \u0111\u1ea1o cho \u1ed1ng vi sinh th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c v\u1edbi y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t nghi\u00eam ng\u1eb7t.<br \/>\n&#8211; C\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan (A269, A249, A213\u2026), k\u00edch th\u01b0\u1edbc theo ASME B36.19M v\u00e0 ch\u1ee9ng t\u1eeb MTC 3.1\/CO\/CQ l\u00e0 b\u1ed9 khung \u0111\u1ea3m b\u1ea3o k\u1ef9 thu\u1eadt \u2013 ph\u00e1p l\u00fd cho m\u1ecdi d\u1ef1 \u00e1n.<br \/>\n&#8211; Ch\u1ecdn \u0111\u00fang ti\u00eau chu\u1ea9n theo m\u00f4i tr\u01b0\u1eddng, \u00e1p l\u1ef1c, y\u00eau c\u1ea7u v\u1ec7 sinh v\u00e0 ki\u1ec3m so\u00e1t b\u1ec1 m\u1eb7t s\u1ebd gi\u1ea3m r\u1ee7i ro, t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ti\u00eau chu\u1ea9n v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t cho \u1ed1ng inox d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u2013 Hotline: 0343.417.281 \u2013 Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 ASTM A312, A270, A269\u2026: ph\u1ea1m vi \u00e1p d\u1ee5ng, v\u1eadt li\u1ec7u, k\u00edch th\u01b0\u1edbc, th\u1eed nghi\u1ec7m, c\u00e1ch ch\u1ecdn theo \u1ee9ng d\u1ee5ng v\u00e0 checklist ki\u1ec3m tra h\u00e0ng.<\/p>\n","protected":false},"author":7,"featured_media":1058,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1451","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\/1451","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=1451"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1451\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1058"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}