{"id":1445,"date":"2025-12-18T12:34:21","date_gmt":"2025-12-18T05:34:21","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/mill-test-certificate-mtc-la-gi-cach-doc-va-vi-sao-quan-trong\/"},"modified":"2025-12-18T12:34:21","modified_gmt":"2025-12-18T05:34:21","slug":"mill-test-certificate-mtc-la-gi-cach-doc-va-vi-sao-quan-trong","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/mill-test-certificate-mtc-la-gi-cach-doc-va-vi-sao-quan-trong\/","title":{"rendered":"Mill Test Certificate (MTC) l\u00e0 g\u00ec? C\u00e1ch \u0111\u1ecdc v\u00e0 v\u00ec sao quan tr\u1ecdng"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-mtc-la-gi-phat-hanh-boi-ai-va-hop-le-khi-nao\">MTC l\u00e0 g\u00ec? Ph\u00e1t h\u00e0nh b\u1edfi ai v\u00e0 h\u1ee3p l\u1ec7 khi n\u00e0o<\/a><\/li>\n<li><a href=\"#toc-1-cac-loai-chung-chi-theo-en-10204\">C\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 theo EN 10204<\/a><\/li>\n<li><a href=\"#toc-2-mtc-gom-nhung-thong-tin-gi-va-y-nghia\">MTC g\u1ed3m nh\u1eefng th\u00f4ng tin g\u00ec? (V\u00e0 \u00fd ngh\u0129a)<\/a><\/li>\n<li><a href=\"#toc-3-cach-doc-mtc-checklist-thuc-te\">C\u00e1ch \u0111\u1ecdc MTC: checklist th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-4-tai-sao-mtc-quan-trong\">T\u1ea1i sao MTC quan tr\u1ecdng?<\/a><\/li>\n<li><a href=\"#toc-5-phan-biet-mtc-voi-cocq-thuong-gap-tai-viet-nam\">Ph\u00e2n bi\u1ec7t MTC v\u1edbi CO\/CQ (th\u01b0\u1eddng g\u1eb7p t\u1ea1i Vi\u1ec7t Nam)<\/a><\/li>\n<li><a href=\"#toc-6-cach-xac-minh-mtc-thatgia-va-tranh-rui-ro\">C\u00e1ch x\u00e1c minh MTC th\u1eadt\/gi\u1ea3 v\u00e0 tr\u00e1nh r\u1ee7i ro<\/a><\/li>\n<li><a href=\"#toc-7-khi-nao-can-en-10204-32\">Khi n\u00e0o c\u1ea7n EN 10204 3.2?<\/a><\/li>\n<li><a href=\"#toc-8-thuc-tien-tot-khi-ghi-trong-hop-dong-mua-inox\">Th\u1ef1c ti\u1ec5n t\u1ed1t khi ghi trong h\u1ee3p \u0111\u1ed3ng mua inox<\/a><\/li>\n<li><a href=\"#toc-9-cac-tieu-chuan-thuong-xuat-hien-tren-mtc-inox\">C\u00e1c ti\u00eau chu\u1ea9n th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u00ean MTC inox<\/a><\/li>\n<li><a href=\"#toc-10-faq-nhanh\">FAQ nhanh<\/a><\/li>\n<li><a href=\"#toc-11-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-12-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Mill Test Certificate (MTC), c\u00f2n g\u1ecdi l\u00e0 Mill Test Report\/Material Test Certificate, l\u00e0 \u201cch\u1ee9ng minh th\u01b0\u201d k\u1ef9 thu\u1eadt c\u1ee7a v\u1eadt li\u1ec7u inox. N\u00f3 ghi l\u1ea1i k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m h\u00f3a \u2013 c\u01a1 t\u00ednh c\u1ee7a l\u00f4 luy\u1ec7n (heat) do nh\u00e0 m\u00e1y luy\u1ec7n kim ph\u00e1t h\u00e0nh, l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 kh\u1eb3ng \u0111\u1ecbnh v\u1eadt li\u1ec7u c\u00f3 \u0111\u00fang m\u00e1c, \u0111\u00fang ti\u00eau chu\u1ea9n (ASTM\/JIS\/EN) v\u00e0 truy xu\u1ea5t \u0111\u01b0\u1ee3c ngu\u1ed3n g\u1ed1c. Trong h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n v\u00e0 ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng inox, MTC l\u00e0 t\u00e0i li\u1ec7u c\u1ed1t l\u00f5i b\u00ean c\u1ea1nh CO\/CQ.<\/p>\n<h2 id=\"toc-0-mtc-la-gi-phat-hanh-boi-ai-va-hop-le-khi-nao\">MTC l\u00e0 g\u00ec? Ph\u00e1t h\u00e0nh b\u1edfi ai v\u00e0 h\u1ee3p l\u1ec7 khi n\u00e0o<\/h2>\n<p>&#8211; \u0110\u1ecbnh ngh\u0129a: MTC l\u00e0 ch\u1ee9ng ch\u1ec9 th\u1eed nghi\u1ec7m v\u1eadt li\u1ec7u do nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p (mill) ph\u00e1t h\u00e0nh, th\u1ec3 hi\u1ec7n c\u00e1c k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch v\u00e0 th\u1eed nghi\u1ec7m tr\u00ean s\u1ea3n ph\u1ea9m th\u1ef1c t\u1ebf c\u1ee7a m\u1ed9t l\u00f4 luy\u1ec7n (heat) ho\u1eb7c l\u00f4 s\u1ea3n ph\u1ea9m.<br \/>\n&#8211; M\u1ee5c \u0111\u00edch: Ch\u1ee9ng minh s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a v\u1eadt li\u1ec7u v\u1edbi ti\u00eau chu\u1ea9n \u0111\u1eb7t h\u00e0ng (v\u00ed d\u1ee5 ASTM A240 cho t\u1ea5m\/coil\/plate, ASTM A312 cho \u1ed1ng, JIS G4304\/G4305 cho t\u1ea5m, JIS G4303 cho thanh).<br \/>\n&#8211; C\u0103n c\u1ee9 ph\u00e1p l\u00fd: H\u00ecnh th\u1ee9c v\u00e0 m\u1ee9c \u0111\u1ed9 \u0111\u1ea3m b\u1ea3o c\u1ee7a MTC \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a trong EN 10204:2004 \u2013 Metallic products \u2013 Types of inspection documents.<br \/>\n&#8211; Ai k\u00fd: K\u1ef9 s\u01b0\/QA c\u1ee7a nh\u00e0 m\u00e1y th\u00e9p (\u0111\u1ed1i v\u1edbi 3.1), ho\u1eb7c \u0111\u1ea1i di\u1ec7n t\u1ed5 ch\u1ee9c gi\u00e1m \u0111\u1ecbnh \u0111\u1ed9c l\u1eadp c\u00f9ng nh\u00e0 m\u00e1y (\u0111\u1ed1i v\u1edbi 3.2).<\/p>\n<h2 id=\"toc-1-cac-loai-chung-chi-theo-en-10204\">C\u00e1c lo\u1ea1i ch\u1ee9ng ch\u1ec9 theo EN 10204<\/h2>\n<p>&#8211; 2.1: Tuy\u00ean b\u1ed1 ph\u00f9 h\u1ee3p \u2013 kh\u00f4ng k\u00e8m d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m c\u1ee5 th\u1ec3 (kh\u00f4ng \u0111\u1ee7 cho d\u1ef1 \u00e1n k\u1ef9 thu\u1eadt).<br \/>\n&#8211; 2.2: Ch\u1ee9ng ch\u1ec9 th\u1eed nghi\u1ec7m th\u00f4ng th\u01b0\u1eddng \u2013 c\u00f3 d\u1eef li\u1ec7u \u0111i\u1ec3n h\u00ecnh, kh\u00f4ng g\u1eafn v\u1edbi l\u00f4 th\u1ef1c t\u1ebf (h\u1ea1n ch\u1ebf truy xu\u1ea5t).<br \/>\n&#8211; 3.1: Ch\u1ee9ng ch\u1ec9 th\u1eed nghi\u1ec7m do nh\u00e0 m\u00e1y ph\u00e1t h\u00e0nh, d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m tr\u00ean l\u00f4\/s\u1ea3n ph\u1ea9m th\u1ef1c t\u1ebf, truy xu\u1ea5t theo s\u1ed1 heat (ph\u1ed5 bi\u1ebfn v\u00e0 n\u00ean y\u00eau c\u1ea7u cho inox k\u1ef9 thu\u1eadt).<br \/>\n&#8211; 3.2: Ch\u1ee9ng ch\u1ec9 3.1 nh\u01b0ng c\u00f3 x\u00e1c nh\u1eadn c\u1ee7a b\u00ean th\u1ee9 ba (TUV, DNV, Lloyd\u2019s\u2026) \u2013 \u00e1p d\u1ee5ng cho d\u1ef1 \u00e1n quan tr\u1ecdng, \u00e1p l\u1ef1c, quy \u0111\u1ecbnh PED\/ASME.<\/p>\n<h2 id=\"toc-2-mtc-gom-nhung-thong-tin-gi-va-y-nghia\">MTC g\u1ed3m nh\u1eefng th\u00f4ng tin g\u00ec? (V\u00e0 \u00fd ngh\u0129a)<\/h2>\n<h3>1) Nh\u1eadn d\u1ea1ng \u2013 gi\u00fap truy xu\u1ea5t<\/h3>\n<p>&#8211; S\u1ed1 ch\u1ee9ng ch\u1ec9, ng\u00e0y ph\u00e1t h\u00e0nh.<br \/>\n&#8211; T\u00ean nh\u00e0 m\u00e1y, \u0111\u1ecba ch\u1ec9, d\u1ea5u\/QR.<br \/>\n&#8211; S\u1ed1 PO\/contract, s\u1ed1 heat (l\u00f4 luy\u1ec7n), s\u1ed1 lot\/coil, s\u1ed1 \u1ed1ng\/thanh.<br \/>\n&#8211; D\u1ea5u \u0111\u00f3ng\/s\u01a1n\/kh\u1eafc tr\u00ean s\u1ea3n ph\u1ea9m ph\u1ea3i kh\u1edbp s\u1ed1 heat.<\/p>\n<h3>2) Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng<\/h3>\n<p>&#8211; V\u00ed d\u1ee5: ASTM A240\/A480 (t\u1ea5m, b\u0103ng), ASTM A312\/A269 (\u1ed1ng), ASTM A276\/A479 (thanh), JIS G4304\/G4305\/G4303, EN 10088.<br \/>\n&#8211; \u0110i\u1ec1u ki\u1ec7n luy\u1ec7n\/t\u00f4i \u1ee7 (solution annealed), tr\u1ea1ng th\u00e1i giao h\u00e0ng (annealed &#038; pickled), b\u1ec1 m\u1eb7t (2B, BA, No.1, HL, No.4).<br \/>\n&#8211; K\u00edch th\u01b0\u1edbc\/dung sai: \u0111\u1ed9 d\u00e0y, OD\/WT, chi\u1ec1u r\u1ed9ng\/d\u00e0i, schedule \u1ed1ng, ti\u00eau chu\u1ea9n dung sai (ASTM A480).<\/p>\n<h3>3) Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc (Heat\/Product analysis)<\/h3>\n<p>&#8211; B\u1ea3ng % nguy\u00ean t\u1ed1: C, Mn, Si, P, S, Cr, Ni, Mo, N\u2026 so v\u1edbi gi\u1edbi h\u1ea1n ti\u00eau chu\u1ea9n.<br \/>\n  &#8211; 304 (ASTM A240): C \u22640.08; Mn \u22642.0; Si \u22641.0; P \u22640.045; S \u22640.03; Cr 18.0\u201320.0; Ni 8.0\u201310.5; N \u22640.10.<br \/>\n  &#8211; 316L: C \u22640.03; Mn \u22642.0; Si \u22641.0; P \u22640.045; S \u22640.03; Cr 16.0\u201318.0; Ni 10.0\u201314.0; Mo 2.0\u20133.0; N \u22640.10.<br \/>\n&#8211; L\u01b0u \u00fd:<br \/>\n  &#8211; 304 c\u00f3 Ni t\u1ed1i thi\u1ec3u 8.0%; n\u1ebfu Ni ~4\u20136% v\u00e0 Mn cao ~6\u20138% d\u1ec5 l\u00e0 201\/201L.<br \/>\n  &#8211; 316L c\u00f3 Mo 2\u20133%; thi\u1ebfu Mo l\u00e0 t\u00edn hi\u1ec7u sai m\u00e1c.<br \/>\n  &#8211; Product analysis c\u00f3 th\u1ec3 ch\u00eanh nh\u1eb9 so v\u1edbi Heat analysis nh\u01b0ng v\u1eabn ph\u1ea3i trong gi\u1edbi h\u1ea1n ti\u00eau chu\u1ea9n.<\/p>\n<h3>4) T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc \u2013 c\u01a1 s\u1edf thi\u1ebft k\u1ebf<\/h3>\n<p>&#8211; \u0110\u1ed9 b\u1ec1n k\u00e9o t\u1ed1i thi\u1ec3u (UTS), gi\u1edbi h\u1ea1n ch\u1ea3y 0,2% (YS), \u0111\u1ed9 gi\u00e3n d\u00e0i (El), \u0111\u1ed9 c\u1ee9ng (HB\/HV), c\u1ee1 h\u1ea1t (n\u1ebfu y\u00eau c\u1ea7u).<br \/>\n  &#8211; A312 TP304\/316L (\u1ed1ng, \u1ee7): UTS \u2265515 MPa; YS \u2265205 MPa; El \u226535%.<br \/>\n  &#8211; A240 (t\u1ea5m): gi\u00e1 tr\u1ecb t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, \u0111\u1ed9 c\u1ee9ng th\u01b0\u1eddng \u2264201 HBW cho austenitic \u0111\u00e3 \u1ee7.<br \/>\n&#8211; K\u1ebft qu\u1ea3 th\u1eed u\u1ed1n\/lo\u00e9\/\u00e9p b\u1eb9p \u0111\u1ed1i v\u1edbi \u1ed1ng; t\u00e1c \u0111\u1ed9ng n\u1ebfu y\u00eau c\u1ea7u.<\/p>\n<h3>5) Th\u1eed nghi\u1ec7m b\u1ed5 sung (n\u1ebfu c\u00f3)<\/h3>\n<p>&#8211; PMI (XRF) x\u00e1c nh\u1eadn m\u00e1c.<br \/>\n&#8211; Th\u1eed th\u1ee7y l\u1ef1c\/EDW \u0111\u1ed1i v\u1edbi \u1ed1ng (A312).<br \/>\n&#8211; Th\u1eed \u0103n m\u00f2n li\u00ean tinh theo ASTM A262 (th\u1ef1c h\u00e0nh E) v\u1edbi 304\/316.<br \/>\n&#8211; Ferrite cho inox duplex (v\u00ed d\u1ee5 35\u201355%).<br \/>\n&#8211; UT\/ET cho \u1ed1ng h\u00e0n\/t\u00e2m \u0111\u1eb7c; \u1ea3nh ch\u1ee5p vi c\u1ea5u tr\u00fac; b\u1ec1 m\u1eb7t (Ra) v\u1edbi y\u00eau c\u1ea7u v\u1ec7 sinh.<\/p>\n<h2 id=\"toc-3-cach-doc-mtc-checklist-thuc-te\">C\u00e1ch \u0111\u1ecdc MTC: checklist th\u1ef1c t\u1ebf<\/h2>\n<p>&#8211; B\u01b0\u1edbc 1 \u2013 \u0110\u1ed1i chi\u1ebfu nh\u1eadn d\u1ea1ng: S\u1ed1 heat tr\u00ean MTC ph\u1ea3i tr\u00f9ng v\u1edbi s\u1ed1 kh\u1eafc\/d\u1ea5u tr\u00ean t\u1ea5m\/\u1ed1ng\/thanh v\u00e0 packing list.<br \/>\n&#8211; B\u01b0\u1edbc 2 \u2013 Ki\u1ec3m tra ti\u00eau chu\u1ea9n: M\u00e1c v\u1eadt li\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n (VD: ASTM A312 TP304) \u0111\u00fang v\u1edbi \u0111\u1eb7t h\u00e0ng; tr\u1ea1ng th\u00e1i \u1ee7 (SA) v\u00e0 b\u1ec1 m\u1eb7t \u0111\u00fang.<br \/>\n&#8211; B\u01b0\u1edbc 3 \u2013 So s\u00e1nh h\u00f3a h\u1ecdc: T\u1eebng nguy\u00ean t\u1ed1 n\u1eb1m trong gi\u1edbi h\u1ea1n theo ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng.<br \/>\n&#8211; B\u01b0\u1edbc 4 \u2013 So s\u00e1nh c\u01a1 t\u00ednh: UTS\/YS\/El\/\u0111\u1ed9 c\u1ee9ng \u0111\u1ea1t ng\u01b0\u1ee1ng t\u1ed1i thi\u1ec3u; l\u01b0u \u00fd chi\u1ec1u d\u00e0y\/\u0111\u01b0\u1eddng k\u00ednh c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng y\u00eau c\u1ea7u.<br \/>\n&#8211; B\u01b0\u1edbc 5 \u2013 Ki\u1ec3m th\u1eed b\u1ed5 sung: C\u00f3 ch\u1ee9ng c\u1ee9 th\u1eed th\u1ee7y l\u1ef1c\/PMI\/IGC n\u1ebfu d\u1ef1 \u00e1n y\u00eau c\u1ea7u.<br \/>\n&#8211; B\u01b0\u1edbc 6 \u2013 Lo\u1ea1i ch\u1ee9ng ch\u1ec9: EN 10204 3.1 hay 3.2? C\u00f3 ch\u1eef k\u00fd, con d\u1ea5u, t\u00ean ng\u01b0\u1eddi k\u00fd, ng\u00e0y, v\u00e0 m\u00e3 ki\u1ec3m so\u00e1t b\u1ea3n g\u1ed1c.<br \/>\n&#8211; B\u01b0\u1edbc 7 \u2013 T\u00ednh nh\u1ea5t qu\u00e1n: \u0110\u01a1n v\u1ecb (wt.%), tr\u00ecnh b\u00e0y b\u1ea3ng, ng\u00f4n ng\u1eef; kh\u00f4ng l\u1ed7i ch\u00ednh t\u1ea3\/th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n<p>V\u00ed d\u1ee5 nhanh: \u1ed0ng h\u00e0n ASTM A312 TP304, OD 114.3 mm, WT 3.05 mm, SA.<br \/>\n&#8211; H\u00f3a h\u1ecdc: Ni 8.35%; Cr 18.45%; C 0.043% \u2013 \u0111\u1ea1t 304.<br \/>\n&#8211; C\u01a1 t\u00ednh: UTS 565 MPa; YS 232 MPa; El 38% \u2013 \u0111\u1ea1t.<br \/>\n&#8211; Th\u1eed th\u1ee7y l\u1ef1c: 100%; PMI: Pass; EN 10204: 3.1 \u2013 ch\u1ea5p nh\u1eadn.<\/p>\n<h2 id=\"toc-4-tai-sao-mtc-quan-trong\">T\u1ea1i sao MTC quan tr\u1ecdng?<\/h2>\n<p>&#8211; Tu\u00e2n chu\u1ea9n\/\u0111\u1ea5u th\u1ea7u: B\u1eaft bu\u1ed9c trong d\u1ef1 \u00e1n c\u00f4ng nghi\u1ec7p, thi\u1ebft b\u1ecb \u00e1p l\u1ef1c, th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c.<br \/>\n&#8211; An to\u00e0n v\u00e0 \u0111\u1ed9 b\u1ec1n: Sai m\u00e1c (v\u00ed d\u1ee5 d\u00f9ng 201 thay 304) c\u00f3 th\u1ec3 g\u00e2y \u0103n m\u00f2n r\u1ed7\/ch\u00e1y m\u1ed1i h\u00e0n, d\u1eebng m\u00e1y t\u1ed1n k\u00e9m.<br \/>\n&#8211; Truy xu\u1ea5t ngu\u1ed3n g\u1ed1c: Qu\u1ea3n l\u00fd theo heat \u0111\u1ec3 \u0111i\u1ec1u tra l\u1ed7i v\u00e0 b\u1ea3o h\u00e0nh.<br \/>\n&#8211; T\u1ed1i \u01b0u k\u1ef9 thu\u1eadt: L\u1ef1a ch\u1ecdn \u0111\u00fang 316L (C \u22640.03) \u0111\u1ec3 gi\u1ea3m nh\u1ea1y c\u1ea3m h\u00f3a trong h\u00e0n; d\u00f9ng duplex \u0111\u00fang ferrite cho m\u00f4i tr\u01b0\u1eddng Cl-.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t r\u1ee7i ro ph\u00e1p l\u00fd: B\u1eb1ng ch\u1ee9ng v\u1eadt li\u1ec7u \u0111\u1ea1t chu\u1ea9n khi c\u00f3 s\u1ef1 c\u1ed1.<\/p>\n<h2 id=\"toc-5-phan-biet-mtc-voi-cocq-thuong-gap-tai-viet-nam\">Ph\u00e2n bi\u1ec7t MTC v\u1edbi CO\/CQ (th\u01b0\u1eddng g\u1eb7p t\u1ea1i Vi\u1ec7t Nam)<\/h2>\n<p>&#8211; CO (Certificate of Origin): Ch\u1ee9ng nh\u1eadn xu\u1ea5t x\u1ee9 \u2013 do Ph\u00f2ng Th\u01b0\u01a1ng m\u1ea1i\/hi\u1ec7p h\u1ed9i c\u1ea5p. Kh\u00f4ng ch\u1ee9ng minh ch\u1ea5t l\u01b0\u1ee3ng.<br \/>\n&#8211; CQ (Certificate of Quality): \u1ede Vi\u1ec7t Nam d\u00f9ng linh ho\u1ea1t, c\u00f3 khi l\u00e0 b\u1ea3n tuy\u00ean b\u1ed1 c\u1ee7a nh\u00e0 cung c\u1ea5p. Ch\u1ec9 CQ kh\u00f4ng thay th\u1ebf MTC.<br \/>\n&#8211; MTC: Do nh\u00e0 m\u00e1y luy\u1ec7n kim ph\u00e1t h\u00e0nh; ch\u1ee9a d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m l\u00f4 th\u1ef1c t\u1ebf; l\u00e0 t\u00e0i li\u1ec7u ch\u00ednh \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<h2 id=\"toc-6-cach-xac-minh-mtc-thatgia-va-tranh-rui-ro\">C\u00e1ch x\u00e1c minh MTC th\u1eadt\/gi\u1ea3 v\u00e0 tr\u00e1nh r\u1ee7i ro<\/h2>\n<p>&#8211; \u0110\u1ed1i chi\u1ebfu s\u1ed1 heat tr\u00ean s\u1ea3n ph\u1ea9m v\u00e0 MTC; y\u00eau c\u1ea7u \u1ea3nh \u0111\u00f3ng d\u1ea5u\/kh\u1eafc tr\u01b0\u1edbc khi giao.<br \/>\n&#8211; Li\u00ean h\u1ec7 nh\u00e0 m\u00e1y theo email domain ch\u00ednh th\u1ee9c, cung c\u1ea5p s\u1ed1 heat\/PO \u0111\u1ec3 x\u00e1c minh.<br \/>\n&#8211; PMI ng\u1eabu nhi\u00ean b\u1eb1ng XRF t\u1ea1i kho\/hi\u1ec7n tr\u01b0\u1eddng, \u0111\u1eb7c bi\u1ec7t cho 304\/316L.<br \/>\n&#8211; Ki\u1ec3m tra logo, m\u00e3 QR, watermark, \u0111\u1ecbnh d\u1ea1ng th\u1ed1ng nh\u1ea5t theo t\u1eebng mill.<br \/>\n&#8211; C\u1ea3nh b\u00e1o \u0111\u1ecf: Ni th\u1ea5p b\u1ea5t th\u01b0\u1eddng (5\u20136%) nh\u01b0ng ghi 304; thi\u1ebfu Mo nh\u01b0ng ghi 316L; l\u1ed7i ch\u00ednh t\u1ea3\/th\u01b0\u01a1ng hi\u1ec7u; ng\u00e0y th\u1eed nghi\u1ec7m sau ng\u00e0y giao; b\u1ea3ng d\u1eef li\u1ec7u \u201ccopy-paste\u201d.<\/p>\n<h2 id=\"toc-7-khi-nao-can-en-10204-32\">Khi n\u00e0o c\u1ea7n EN 10204 3.2?<\/h2>\n<p>&#8211; D\u1ef1 \u00e1n \u00e1p l\u1ef1c\/PED, \u0111\u00f3ng t\u00e0u, d\u1ea7u kh\u00ed, h\u00f3a ch\u1ea5t nguy h\u1ea1i, d\u01b0\u1ee3c \u2013 n\u01a1i y\u00eau c\u1ea7u nh\u00e2n ch\u1ee9ng b\u00ean th\u1ee9 ba.<br \/>\n&#8211; Khi ch\u1ee7 \u0111\u1ea7u t\u01b0\/QA y\u00eau c\u1ea7u ch\u1ee9ng ki\u1ebfn th\u1eed nghi\u1ec7m t\u1ea1i x\u01b0\u1edfng ho\u1eb7c ni\u00eam phong m\u1eabu.<br \/>\n&#8211; L\u01b0u \u00fd: Chi ph\u00ed t\u0103ng v\u00e0 lead time d\u00e0i h\u01a1n; x\u00e1c l\u1eadp t\u1eeb giai \u0111o\u1ea1n \u0111\u1eb7t h\u00e0ng.<\/p>\n<h2 id=\"toc-8-thuc-tien-tot-khi-ghi-trong-hop-dong-mua-inox\">Th\u1ef1c ti\u1ec5n t\u1ed1t khi ghi trong h\u1ee3p \u0111\u1ed3ng mua inox<\/h2>\n<p>&#8211; Y\u00eau c\u1ea7u MTC EN 10204 3.1 (ho\u1eb7c 3.2 n\u1ebfu c\u1ea7n), n\u00eau r\u00f5 ti\u00eau chu\u1ea9n (ASTM\/JIS\/EN) v\u00e0 m\u00e1c.<br \/>\n&#8211; Quy \u0111\u1ecbnh \u0111\u00f3ng d\u1ea5u s\u1ed1 heat tr\u00ean t\u1eebng t\u1ea5m\/\u1ed1ng\/thanh v\u00e0 bao b\u00ec.<br \/>\n&#8211; Ghi r\u00f5 tr\u1ea1ng th\u00e1i x\u1eed l\u00fd nhi\u1ec7t, b\u1ec1 m\u1eb7t, th\u1eed th\u1ee7y l\u1ef1c\/PMI\/IGC (n\u1ebfu c\u1ea7n).<br \/>\n&#8211; \u0110i\u1ec1u kho\u1ea3n ki\u1ec3m tra \u0111\u1ea7u v\u00e0o: PMI t\u1ed1i thi\u1ec3u X% l\u00f4; kh\u00f4ng \u0111\u1ea1t th\u00ec tr\u1ea3 h\u00e0ng.<br \/>\n&#8211; Y\u00eau c\u1ea7u b\u1ea3n MTC g\u1ed1c d\u1ea1ng PDF c\u00f3 ch\u1eef k\u00fd s\u1ed1\/QR; l\u01b0u tr\u1eef c\u00f9ng s\u1ed1 PO \u0111\u1ec3 truy xu\u1ea5t.<\/p>\n<h2 id=\"toc-9-cac-tieu-chuan-thuong-xuat-hien-tren-mtc-inox\">C\u00e1c ti\u00eau chu\u1ea9n th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n tr\u00ean MTC inox<\/h2>\n<p>&#8211; ASTM A240\/A480: T\u1ea5m\/plate\/b\u0103ng inox; y\u00eau c\u1ea7u h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh, dung sai.<br \/>\n&#8211; ASTM A312\/A269: \u1ed0ng h\u00e0n\/\u0111\u00fac; th\u1eed th\u1ee7y l\u1ef1c, flattening\/flaring.<br \/>\n&#8211; ASTM A276\/A479: Thanh c\u00e1n\/n\u00f3ng; \u0111i\u1ec1u ki\u1ec7n giao h\u00e0ng.<br \/>\n&#8211; JIS G4304\/G4305\/G4303: T\u1ea5m c\u00e1n n\u00f3ng\/l\u1ea1nh; thanh.<br \/>\n&#8211; EN 10088: Th\u00e0nh ph\u1ea7n v\u00e0 ph\u00e2n lo\u1ea1i inox theo EN.<br \/>\n&#8211; ASTM A262: Th\u1eed \u0103n m\u00f2n li\u00ean tinh c\u00e1c th\u00e9p kh\u00f4ng g\u1ec9 austenitic.<br \/>\n&#8211; ASTM A370: Ph\u01b0\u01a1ng ph\u00e1p th\u1eed c\u01a1 t\u00ednh kim lo\u1ea1i.<\/p>\n<h2 id=\"toc-10-faq-nhanh\">FAQ nhanh<\/h2>\n<p>&#8211; MTC c\u00f3 b\u1eaft bu\u1ed9c kh\u00f4ng? V\u1edbi d\u1ef1 \u00e1n k\u1ef9 thu\u1eadt, g\u1ea7n nh\u01b0 lu\u00f4n b\u1eaft bu\u1ed9c. V\u1edbi h\u00e0ng d\u00e2n d\u1ee5ng\/kh\u00f4ng quan tr\u1ecdng, \u0111\u00f4i khi ch\u1ea5p nh\u1eadn 2.2\/CQ, nh\u01b0ng r\u1ee7i ro cao.<br \/>\n&#8211; M\u1ed9t MTC c\u00f3 th\u1ec3 d\u00f9ng cho nhi\u1ec1u cu\u1ed9n\/\u1ed1ng? C\u00f3, n\u1ebfu c\u00f9ng s\u1ed1 heat v\u00e0 \u0111i\u1ec1u ki\u1ec7n s\u1ea3n xu\u1ea5t; tuy nhi\u00ean m\u1ed7i cu\u1ed9n\/l\u00f4 v\u1eabn ph\u1ea3i truy xu\u1ea5t \u0111\u01b0\u1ee3c.<br \/>\n&#8211; C\u00f3 th\u1ec3 \u201cxin MTC\u201d sau khi mua? Ch\u1ec9 n\u1ebfu nh\u00e0 cung c\u1ea5p th\u1eadt s\u1ef1 c\u00f3 truy xu\u1ea5t heat. Kh\u00f4ng n\u00ean mua h\u00e0ng \u201ckh\u00f4ng s\u1ed1 heat\u201d.<br \/>\n&#8211; MTC 3.1 kh\u00e1c g\u00ec 3.2? 3.2 c\u00f3 x\u00e1c nh\u1eadn \u0111\u1ed9c l\u1eadp c\u1ee7a b\u00ean th\u1ee9 ba, gi\u00e1 cao h\u01a1n, d\u00f9ng cho d\u1ef1 \u00e1n nghi\u00eam ng\u1eb7t.<\/p>\n<h2 id=\"toc-11-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; EN 10204:2004 \u2013 Metallic products \u2014 Types of inspection documents (BSI overview): https:\/\/knowledge.bsigroup.com\/products\/metallic-products-types-of-inspection-documents-en-10204-2004<br \/>\n&#8211; ASTM A240\/A240M \u2013 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip: https:\/\/www.astm.org\/a0240_a0240m-20.html<br \/>\n&#8211; ASTM A312\/A312M \u2013 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes: https:\/\/www.astm.org\/a0312_a0312m-23.html<br \/>\n&#8211; JIS G 4304\/4305 \u2013 Hot\/cold-rolled stainless steel plate, sheet and strip (JSA overview): https:\/\/www.jsa.or.jp\/en\/<br \/>\n&#8211; ASTM A262 \u2013 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels: https:\/\/www.astm.org\/a0262-15.html<\/p>\n<h2 id=\"toc-12-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>MTC l\u00e0 ch\u1ee9ng ch\u1ec9 th\u1eed nghi\u1ec7m c\u1ed1t l\u00f5i, x\u00e1c nh\u1eadn inox \u0111\u00fang m\u00e1c v\u00e0 \u0111\u00fang ti\u00eau chu\u1ea9n, b\u1ea3o \u0111\u1ea3m an to\u00e0n, \u0111\u1ed9 b\u1ec1n v\u00e0 tu\u00e2n th\u1ee7 trong m\u1ecdi d\u1ef1 \u00e1n. H\u00e3y y\u00eau c\u1ea7u t\u1ed1i thi\u1ec3u EN 10204 3.1, ki\u1ec3m tra ch\u00e9o s\u1ed1 heat \u2013 h\u00f3a h\u1ecdc \u2013 c\u01a1 t\u00ednh \u2013 th\u1eed nghi\u1ec7m b\u1ed5 sung, v\u00e0 th\u1ef1c hi\u1ec7n PMI khi c\u1ea7n. L\u00e0m \u0111\u00fang ngay t\u1eeb kh\u00e2u MTC s\u1ebd ti\u1ebft ki\u1ec7m l\u1edbn chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 tr\u00e1nh r\u1ee7i ro ph\u00e1p l\u00fd.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c inox, ti\u00eau chu\u1ea9n \u0111\u00fang d\u1ef1 \u00e1n v\u00e0 nh\u1eadn b\u00e1o gi\u00e1 t\u1ed1t? 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>Hi\u1ec3u r\u00f5 MTC theo EN 10204 (3.1\/3.2), c\u00e1ch \u0111\u1ecdc th\u00e0nh ph\u1ea7n \u2013 c\u01a1 t\u00ednh, truy xu\u1ea5t s\u1ed1 heat v\u00e0 m\u1eb9o x\u00e1c minh ch\u1ee9ng ch\u1ec9 khi mua inox \u0111\u1ea1t ASTM\/JIS, tr\u00e1nh r\u1ee7i ro.<\/p>\n","protected":false},"author":7,"featured_media":1050,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1445","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\/1445","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=1445"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1445\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1050"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}