{"id":1498,"date":"2026-01-01T00:34:42","date_gmt":"2025-12-31T17:34:42","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/10-rui-ro-pho-bien-khi-mua-ban-inox-va-cach-phong-tranh-hieu-qua\/"},"modified":"2026-01-01T00:34:42","modified_gmt":"2025-12-31T17:34:42","slug":"10-rui-ro-pho-bien-khi-mua-ban-inox-va-cach-phong-tranh-hieu-qua","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/10-rui-ro-pho-bien-khi-mua-ban-inox-va-cach-phong-tranh-hieu-qua\/","title":{"rendered":"10 r\u1ee7i ro ph\u1ed5 bi\u1ebfn khi mua b\u00e1n inox v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh hi\u1ec7u qu\u1ea3"},"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-rui-ro-trong-chuoi-mua-inox\">T\u1ed5ng quan nh\u00f3m r\u1ee7i ro trong chu\u1ed7i mua inox<\/a><\/li>\n<li><a href=\"#toc-1-nhung-rui-ro-ky-thuat-va-cach-phong-tranh\">Nh\u1eefng r\u1ee7i ro k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-2-rui-ro-thuong-mai-tai-chinh-va-cach-khoa-chat\">R\u1ee7i ro th\u01b0\u01a1ng m\u1ea1i \u2013 t\u00e0i ch\u00ednh v\u00e0 c\u00e1ch kh\u00f3a ch\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-3-rui-ro-logistics-bao-quan-va-giao-nhan\">R\u1ee7i ro logistics, b\u1ea3o qu\u1ea3n v\u00e0 giao nh\u1eadn<\/a><\/li>\n<li><a href=\"#toc-4-quy-trinh-7-buoc-mua-inox-an-toan-cho-doanh-nghiep\">Quy tr\u00ecnh 7 b\u01b0\u1edbc mua inox an to\u00e0n cho doanh nghi\u1ec7p\/x\u01b0\u1edfng<\/a><\/li>\n<li><a href=\"#toc-5-bang-kiem-nhanh-inox-buying-checklist\">B\u1ea3ng ki\u1ec3m nhanh (Inox Buying Checklist)<\/a><\/li>\n<li><a href=\"#toc-6-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-7-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-8-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Mua b\u00e1n inox t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n nh\u01b0ng ch\u1ee9a nhi\u1ec1u r\u1ee7i ro k\u1ef9 thu\u1eadt, th\u01b0\u01a1ng m\u1ea1i v\u00e0 h\u1eadu c\u1ea7n. B\u00e0i vi\u1ebft n\u00e0y t\u1ed5ng h\u1ee3p nh\u1eefng r\u1ee7i ro th\u01b0\u1eddng g\u1eb7p nh\u1ea5t tr\u00ean th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam, ch\u1ec9 ra d\u1ea5u hi\u1ec7u nh\u1eadn di\u1ec7n, c\u00e1ch ki\u1ec3m so\u00e1t theo ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf, v\u00e0 \u0111\u01b0a ra quy tr\u00ecnh \u2013 checklist \u00e1p d\u1ee5ng ngay t\u1ea1i doanh nghi\u1ec7p, x\u01b0\u1edfng v\u00e0 c\u00f4ng tr\u00ecnh. \u0110\u00e2y l\u00e0 m\u1ed9t m\u1ea3ng c\u1ed1t l\u00f5i trong c\u1ea9m nang mua h\u00e0ng inox d\u00e0nh cho doanh nghi\u1ec7p, \u0111\u1ea1i l\u00fd v\u00e0 k\u1ef9 s\u01b0.<\/p>\n<h2 id=\"toc-0-tong-quan-nhom-rui-ro-trong-chuoi-mua-inox\">T\u1ed5ng quan nh\u00f3m r\u1ee7i ro trong chu\u1ed7i mua inox<\/h2>\n<p>C\u00f3 th\u1ec3 chia r\u1ee7i ro th\u00e0nh 4 nh\u00f3m:<br \/>\n&#8211; K\u1ef9 thu\u1eadt: nh\u1ea7m m\u00e1c th\u00e9p (201\/304\/316\/430), sai \u0111\u1ed9 d\u00e0y \u2013 dung sai, sai ti\u00eau chu\u1ea9n \u1ed1ng\/t\u1ea5m\/thanh, l\u1ed7i b\u1ec1 m\u1eb7t \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a, ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n.<br \/>\n&#8211; Th\u01b0\u01a1ng m\u1ea1i \u2013 t\u00e0i ch\u00ednh: b\u00e1o gi\u00e1 m\u1eadp m\u1edd theo kg\/t\u1ea5m, t\u00ednh tr\u1ecdng l\u01b0\u1ee3ng \u201cl\u00fd thuy\u1ebft\u201d thay v\u00ec c\u00e2n th\u1ef1c, bi\u1ebfn \u0111\u1ed9ng gi\u00e1 Ni\/Mo, CO\/CQ kh\u00f4ng h\u1ee3p l\u1ec7, \u0111i\u1ec1u kho\u1ea3n thanh to\u00e1n r\u1ee7i ro.<br \/>\n&#8211; Logistics \u2013 l\u01b0u kho: ch\u1eadm ti\u1ebfn \u0111\u1ed9, giao sai quy c\u00e1ch, g\u1ec9 \u1ed1 do \u1ea9m m\u1eb7n, bao g\u00f3i k\u00e9m, l\u1eabn t\u1ea1p.<br \/>\n&#8211; Ph\u00e1p l\u00fd \u2013 truy xu\u1ea5t: thi\u1ebfu MTR\/Heat number, kh\u00f4ng truy xu\u1ea5t \u0111\u01b0\u1ee3c l\u00f4, khi\u1ebfu n\u1ea1i kh\u00f3 do thi\u1ebfu th\u00f4ng s\u1ed1 h\u1ee3p \u0111\u1ed3ng.<\/p>\n<h2 id=\"toc-1-nhung-rui-ro-ky-thuat-va-cach-phong-tranh\">Nh\u1eefng r\u1ee7i ro k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch ph\u00f2ng tr\u00e1nh<\/h2>\n<h3>1) Nh\u1ea7m m\u00e1c th\u00e9p: 201 \u201c\u0111\u1ed9i l\u1ed1t\u201d 304, 304 thay cho 316<\/h3>\n<p>R\u1ee7i ro:<br \/>\n&#8211; 201 c\u00f3 Ni th\u1ea5p (~1\u20134%) v\u00e0 Mn cao (5\u20139%) d\u1ec5 g\u1ec9 h\u01a1n 304 (Ni ~8\u201310.5%), nh\u01b0ng b\u1ec1 m\u1eb7t t\u01b0\u01a1ng t\u1ef1 n\u00ean b\u1ecb tr\u00e0 tr\u1ed9n.<br \/>\n&#8211; 304 d\u00f9ng \u1edf m\u00f4i tr\u01b0\u1eddng clorua cao (ven bi\u1ec3n, b\u1ec3 b\u01a1i) d\u1ec5 b\u1ecb \u1ed1 tr\u00e0m\/\u0111i\u1ec3m g\u1ec9; c\u1ea7n 316\/316L c\u00f3 Mo ~2\u20132.5%.<br \/>\nC\u00e1ch nh\u1eadn di\u1ec7n nhanh:<br \/>\n&#8211; Th\u1eed nam ch\u00e2m kh\u00f4ng \u0111\u00e1ng tin: 304 sau c\u00e1n ngu\u1ed9i v\u1eabn c\u00f3 t\u1eeb t\u00ednh nh\u1eb9; 201 \u0111\u00f4i khi \u00edt h\u00fat (Ngu\u1ed3n: ASSDA).<br \/>\n&#8211; PMI b\u1eb1ng XRF c\u1ea7m tay: \u0111\u1ecdc th\u00e0nh ph\u1ea7n %Ni, %Cr, %Mo \u0111\u1ec3 x\u00e1c nh\u1eadn m\u00e1c (Ngu\u1ed3n: ASTM\/ASME PMI practices).<br \/>\n&#8211; Mo test (gi\u1ecdt th\u1eed molybdenum) ph\u00e2n bi\u1ec7t 304 v\u00e0 316 t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<br \/>\n&#8211; Ki\u1ec3m ch\u1ee9ng MTR (Mill Test Report) c\u00f3 heat number tr\u00f9ng kh\u1edbp tem s\u1ea3n ph\u1ea9m.<br \/>\nPh\u00f2ng tr\u00e1nh:<br \/>\n&#8211; Y\u00eau c\u1ea7u CO, CQ v\u00e0 MTR theo ASTM A240 (t\u1ea5m), ASTM A312\/A269 (\u1ed1ng), ASTM A554 (\u1ed1ng trang tr\u00ed), ASTM A479 (thanh); ho\u1eb7c JIS G4304\/G4305.<br \/>\n&#8211; Ghi r\u00f5 m\u00e1c v\u00e0 chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng (UNS 304 = S30400\/304L = S30403; 316 = S31600\/316L = S31603).<br \/>\n&#8211; Quy \u0111\u1ecbnh th\u1eed PMI 100% \u0111\u1ed1i v\u1edbi l\u00f4 quan tr\u1ecdng; t\u1ed1i thi\u1ec3u ki\u1ec3m tra ng\u1eabu nhi\u00ean AQL.<\/p>\n<h3>2) Sai \u0111\u1ed9 d\u00e0y, k\u00edch th\u01b0\u1edbc v\u00e0 dung sai<\/h3>\n<p>R\u1ee7i ro:<br \/>\n&#8211; T\u1ea5m\/coil 1.2 mm giao th\u1ef1c t\u1ebf 1.12\u20131.15 mm; \u1ed1ng\/h\u1ed9p m\u1ecfng th\u00e0nh so v\u1edbi ni\u00eam y\u1ebft; dung sai ngo\u00e0i chu\u1ea9n g\u00e2y y\u1ebfu k\u1ebft c\u1ea5u, hao m\u00f2n khi gia c\u00f4ng.<br \/>\nKi\u1ec3m so\u00e1t:<br \/>\n&#8211; Tham chi\u1ebfu dung sai theo ASTM A480 (t\u1ea5m\/coil l\u1ea1nh \u2013 n\u00f3ng), JIS G4304\/G4305; \u1ed1ng trang tr\u00ed theo ASTM A554, \u1ed1ng c\u00f4ng nghi\u1ec7p theo ASTM A312\/A269.<br \/>\n&#8211; \u0110o b\u1eb1ng micrometer chu\u1ea9n; \u0111o \u00edt nh\u1ea5t 5 \u0111i\u1ec3m\/t\u1ea5m ho\u1eb7c 3 v\u1ecb tr\u00ed d\u1ecdc \u1ed1ng.<br \/>\n&#8211; Ghi r\u00f5 dung sai trong h\u1ee3p \u0111\u1ed3ng (v\u00ed d\u1ee5: theo ASTM A480 ho\u1eb7c dung sai ri\u00eang \u00b10.03 mm cho d \u2264 1.5 mm n\u1ebfu d\u1ef1 \u00e1n y\u00eau c\u1ea7u kh\u1eaft khe).<\/p>\n<h3>3) L\u1ed7i b\u1ec1 m\u1eb7t: tr\u1ea7y x\u01b0\u1edbc, \u1ed1 tr\u00e0m, d\u1ea7u m\u1ee1, oxy h\u00f3a khi v\u1eadn chuy\u1ec3n<\/h3>\n<p>R\u1ee7i ro:<br \/>\n&#8211; B\u1ec1 m\u1eb7t No.1\/2B\/BA\/HL\/No.4 d\u1ec5 x\u01b0\u1edbc n\u1ebfu kh\u00f4ng c\u00f3 film PVC; \u1ed1 tr\u00e0m (tea staining) \u1edf v\u00f9ng ven bi\u1ec3n; x\u1ec9 h\u00e0n, v\u1ea3y nhi\u1ec7t ch\u01b0a t\u1ea9y \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a.<br \/>\nPh\u00f2ng tr\u00e1nh:<br \/>\n&#8211; Y\u00eau c\u1ea7u ph\u1ee7 film PVC v\u1edbi No.4\/HL\/BA; \u0111\u00f3ng g\u00f3i b\u1eb1ng gi\u1ea5y ch\u1ed1ng \u1ea9m, pallet g\u1ed7 hun tr\u00f9ng, \u0111ai inox\/nh\u1ef1a.<br \/>\n&#8211; Sau h\u00e0n: pickling &#038; passivation theo ASTM A380\/A967 \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1edbp th\u1ee5 \u0111\u1ed9ng (Ngu\u1ed3n: ASSDA, Nickel Institute).<br \/>\n&#8211; Quy \u0111\u1ecbnh th\u1eed b\u1ec1 m\u1eb7t: Ra, c\u1ea5p ho\u00e0n thi\u1ec7n, gi\u1edbi h\u1ea1n khuy\u1ebft t\u1eadt ch\u1ea5p nh\u1eadn.<\/p>\n<h3>4) Kh\u00f4ng ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n<\/h3>\n<p>V\u1ea5n \u0111\u1ec1:<br \/>\n&#8211; 304 trong m\u00f4i tr\u01b0\u1eddng clorua (>200 ppm), g\u1ea7n bi\u1ec3n, n\u01b0\u1edbc m\u01b0a axit d\u1ec5 \u1ed1 v\u00e0 pitting. Nhi\u1ec7t \u0111\u1ed9 cao g\u00e2y nh\u1ea1y c\u1ea3m h\u1ea1t ranh gi\u1edbi.<br \/>\nGi\u1ea3i ph\u00e1p ch\u1ecdn m\u00e1c:<br \/>\n&#8211; Ven bi\u1ec3n, h\u1ed3 b\u01a1i: 316\/316L; m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p SO2: 316L ho\u1eb7c duplex n\u1ebfu kh\u1eafc nghi\u1ec7t; nhi\u1ec7t cao: 310S\/309S; d\u1ee5ng c\u1ee5 th\u1ef1c ph\u1ea9m: 304\/316L b\u1ec1 m\u1eb7t BA\/2B (Ngu\u1ed3n: Nickel Institute, Outokumpu Handbook).<br \/>\n&#8211; Quy \u0111\u1ecbnh v\u1ec7 sinh \u2013 r\u1eeda \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 gi\u1ea3m \u1ed1 tr\u00e0m.<\/p>\n<h3>5) Sai ti\u00eau chu\u1ea9n \u1ed1ng\/h\u1ed9p v\u00e0 m\u1ed1i h\u00e0n<\/h3>\n<p>R\u1ee7i ro:<br \/>\n&#8211; \u1ed0ng trang tr\u00ed d\u00f9ng nh\u01b0 \u1ed1ng \u00e1p l\u1ef1c; m\u1ed1i h\u00e0n kh\u00f4ng ng\u1ea5u, kh\u00f4ng t\u1ea9y m\u1ed1i h\u00e0n, kh\u00f4ng ERW chu\u1ea9n.<br \/>\nPh\u00f2ng tr\u00e1nh:<br \/>\n&#8211; Ph\u00e2n bi\u1ec7t: ASTM A554 (trang tr\u00ed, c\u01a1 kh\u00ed), ASTM A312\/A269 (\u1ed1ng c\u00f4ng nghi\u1ec7p, \u00e1p l\u1ef1c\/\u0103n m\u00f2n).<br \/>\n&#8211; Y\u00eau c\u1ea7u ki\u1ec3m tra flattening, flaring, hydrostatic\/eddy current theo ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<h3>6) H\u00e0ng c\u00e1n l\u1ea1i, pha tr\u1ed9n ho\u1eb7c t\u00e1i ch\u1ebf k\u00e9m ki\u1ec3m so\u00e1t<\/h3>\n<p>D\u1ea5u hi\u1ec7u:<br \/>\n&#8211; B\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, m\u00e0u \u201cx\u00e1m \u0111\u1ee5c\u201d, hardness b\u1ea5t th\u01b0\u1eddng, tr\u1ecb s\u1ed1 PMI dao \u0111\u1ed9ng l\u1edbn gi\u1eefa c\u00e1c \u0111i\u1ec3m.<br \/>\nC\u00e1ch tr\u00e1nh:<br \/>\n&#8211; Mua t\u1eeb nh\u00e0 m\u00e1y\/nh\u00e0 ph\u00e2n ph\u1ed1i c\u00f3 ISO 9001 v\u00e0 truy xu\u1ea5t heat number; ki\u1ec3m \u0111\u1ecbnh ng\u1eabu nhi\u00ean t\u1ea1i b\u00ean th\u1ee9 ba.<\/p>\n<h2 id=\"toc-2-rui-ro-thuong-mai-tai-chinh-va-cach-khoa-chat\">R\u1ee7i ro th\u01b0\u01a1ng m\u1ea1i \u2013 t\u00e0i ch\u00ednh v\u00e0 c\u00e1ch kh\u00f3a ch\u1eb7t<\/h2>\n<h3>7) B\u00e1o gi\u00e1 m\u1eadp m\u1edd: theo kg, t\u1ea5m hay m\u00e9t? \u201cL\u00fd thuy\u1ebft\u201d hay c\u00e2n th\u1ef1c?<\/h3>\n<p>T\u00ecnh hu\u1ed1ng:<br \/>\n&#8211; B\u00e1o gi\u00e1 theo t\u1ea5m nh\u01b0ng giao h\u00e0ng thi\u1ebfu \u0111\u1ed9 d\u00e0y; ho\u1eb7c t\u00ednh ti\u1ec1n theo \u201ckg l\u00fd thuy\u1ebft\u201d (d\u1ef1a tr\u00ean danh ngh\u0129a) thay v\u00ec c\u00e2n th\u1ef1c.<br \/>\nBi\u1ec7n ph\u00e1p:<br \/>\n&#8211; Quy \u0111\u1ecbnh c\u00f4ng th\u1ee9c c\u00e2n th\u1ef1c: Kh\u1ed1i l\u01b0\u1ee3ng (kg) = d(mm) \u00d7 W(m) \u00d7 L(m) \u00d7 7.93. V\u00ed d\u1ee5: t\u1ea5m 1.5 \u00d7 1.22 \u00d7 2.44: 1.5 \u00d7 1.22 \u00d7 2.44 \u00d7 7.93 \u2248 35.2 kg.<br \/>\n&#8211; Y\u00eau c\u1ea7u c\u00e2n t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng\/b\u00ean th\u1ee9 ba; n\u1ebfu t\u00ednh theo l\u00fd thuy\u1ebft, dung sai \u0111\u1ed9 d\u00e0y ph\u1ea3i r\u00e0ng bu\u1ed9c theo ASTM A480.<\/p>\n<h3>8) Bi\u1ebfn \u0111\u1ed9ng gi\u00e1 Ni\/Mo v\u00e0 ph\u1ee5 ph\u00ed h\u1ee3p kim<\/h3>\n<p>Th\u1ef1c t\u1ebf:<br \/>\n&#8211; Gi\u00e1 Ni, Mo t\u00e1c \u0111\u1ed9ng m\u1ea1nh \u0111\u1ebfn 304\/316; nhi\u1ec1u nh\u00e0 m\u00e1y \u00e1p d\u1ee5ng ph\u1ee5 ph\u00ed h\u1ee3p kim (alloy surcharge) theo th\u00e1ng.<br \/>\nKi\u1ec3m so\u00e1t:<br \/>\n&#8211; Th\u00eam \u0111i\u1ec1u kho\u1ea3n \u0111i\u1ec1u ch\u1ec9nh gi\u00e1 d\u1ef1a tr\u00ean ch\u1ec9 s\u1ed1 (LME Nickel) cho h\u1ee3p \u0111\u1ed3ng d\u00e0i; ch\u1ed1t gi\u00e1 ng\u1eafn h\u1ea1n (\u226414 ng\u00e0y) cho l\u00f4 l\u1edbn.<\/p>\n<h3>9) Gian l\u1eadn CO\/CQ, MTR v\u00e0 h\u00f3a \u0111\u01a1n<\/h3>\n<p>R\u1ee7i ro:<br \/>\n&#8211; CO\/CQ PhotoShop, MTR kh\u00f4ng kh\u1edbp heat number, h\u00f3a \u0111\u01a1n VAT t\u1eeb ph\u00e1p nh\u00e2n kh\u00e1c, t\u00e0i kho\u1ea3n nh\u1eadn ti\u1ec1n c\u00e1 nh\u00e2n.<br \/>\nPh\u00f2ng tr\u00e1nh:<br \/>\n&#8211; X\u00e1c minh MTR v\u1edbi nh\u00e0 m\u00e1y khi c\u1ea7n; \u0111\u1ed1i chi\u1ebfu heat number kh\u1eafc\/tem tr\u00ean s\u1ea3n ph\u1ea9m.<br \/>\n&#8211; Thanh to\u00e1n v\u00e0o t\u00e0i kho\u1ea3n c\u00f4ng ty tr\u00ean h\u1ee3p \u0111\u1ed3ng; ki\u1ec3m tra MST\/\u0111\u0103ng k\u00fd kinh doanh.<br \/>\n&#8211; Y\u00eau c\u1ea7u b\u1ed9 ch\u1ee9ng t\u1eeb: CO form E\/AK (n\u1ebfu nh\u1eadp), CQ\/MTR, packing list, h\u00f3a \u0111\u01a1n VAT.<\/p>\n<h3>10) \u0110i\u1ec1u kho\u1ea3n thanh to\u00e1n r\u1ee7i ro<\/h3>\n<p>Khuy\u1ebfn ngh\u1ecb:<br \/>\n&#8211; V\u1edbi l\u00f4 l\u1edbn: \u0111\u1eb7t c\u1ecdc nh\u1ecf, thanh to\u00e1n ph\u1ea7n c\u00f2n l\u1ea1i sau ki\u1ec3m h\u00e0ng; ho\u1eb7c L\/C tr\u1ea3 ngay.<br \/>\n&#8211; C\u00f3 \u0111i\u1ec1u kho\u1ea3n gi\u1eef l\u1ea1i (retention 5\u201310%) \u0111\u1ebfn khi nghi\u1ec7m thu.<br \/>\n&#8211; R\u00e0ng bu\u1ed9c ph\u1ea1t ch\u1eadm ti\u1ebfn \u0111\u1ed9\/sai quy c\u00e1ch.<\/p>\n<h2 id=\"toc-3-rui-ro-logistics-bao-quan-va-giao-nhan\">R\u1ee7i ro logistics, b\u1ea3o qu\u1ea3n v\u00e0 giao nh\u1eadn<\/h2>\n<h3>\u0110\u1ed9 tr\u1ec5, thi\u1ebfu h\u00e0ng, giao sai quy c\u00e1ch<\/h3>\n<p>&#8211; D\u1ef1 ph\u00f2ng lead time theo tuy\u1ebfn nh\u1eadp: 20\u201345 ng\u00e0y t\u00f9y c\u1ea3ng; ki\u1ec3m tra ID coil (508\/610 mm), OD t\u1ed1i \u0111a, tr\u1ecdng l\u01b0\u1ee3ng coil ph\u00f9 h\u1ee3p m\u00e1y x\u1ea3.<br \/>\n&#8211; Bi\u00ean b\u1ea3n giao nh\u1eadn k\u00e8m \u1ea3nh\/clip, \u0111o k\u00edch th\u01b0\u1edbc t\u1ea1i ch\u1ed7, ni\u00eam phong l\u00f4 h\u00e0ng.<\/p>\n<h3>G\u1ec9 s\u00e9t, \u1ed1 tr\u00e0m do \u1ea9m m\u1eb7n v\u00e0 l\u1eabn t\u1ea1p<\/h3>\n<p>&#8211; Kho kh\u00f4, th\u00f4ng gi\u00f3; k\u00ea pallet cao \u226510 cm; d\u00f9ng desiccant, m\u00e0ng VCI cho coil; tr\u00e1nh ti\u1ebfp x\u00fac th\u00e9p carbon, d\u1ee5ng c\u1ee5 chung (nguy c\u01a1 nhi\u1ec5m s\u1eaft t\u1ef1 do).<br \/>\n&#8211; Lau r\u1eeda \u0111\u1ecbnh k\u1ef3 b\u1eb1ng n\u01b0\u1edbc ng\u1ecdt khu v\u1ef1c ven bi\u1ec3n; kh\u00f4ng d\u00f9ng h\u00f3a ch\u1ea5t ch\u1ee9a chloride.<\/p>\n<h2 id=\"toc-4-quy-trinh-7-buoc-mua-inox-an-toan-cho-doanh-nghiep\">Quy tr\u00ecnh 7 b\u01b0\u1edbc mua inox an to\u00e0n cho doanh nghi\u1ec7p\/x\u01b0\u1edfng<\/h2>\n<h3>1) Chu\u1ea9n h\u00f3a y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt (Spec)<\/h3>\n<p>&#8211; M\u00e1c, chu\u1ea9n (ASTM\/JIS\/EN\/TCVN), b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y\/dung sai, k\u00edch th\u01b0\u1edbc, ph\u01b0\u01a1ng th\u1ee9c ki\u1ec3m tra, y\u00eau c\u1ea7u MTR\/CO\/CQ, \u0111\u00f3ng g\u00f3i, k\u00fd m\u00e3 hi\u1ec7u.<\/p>\n<h3>2) Th\u1ea9m \u0111\u1ecbnh nh\u00e0 cung c\u1ea5p<\/h3>\n<p>&#8211; Ch\u1ee9ng ch\u1ec9 ISO 9001, l\u1ecbch s\u1eed cung c\u1ea5p d\u1ef1 \u00e1n t\u01b0\u01a1ng t\u1ef1, n\u0103ng l\u1ef1c t\u1ed3n kho \u2013 c\u1eaft x\u1ea3 \u2013 gia c\u00f4ng, quy tr\u00ecnh IQC\/OQC, m\u1eabu CO\/CQ th\u1ef1c t\u1ebf.<\/p>\n<h3>3) L\u1ea5y m\u1eabu v\u00e0 th\u1eed nghi\u1ec7m<\/h3>\n<p>&#8211; PMI XRF, \u0111o \u0111\u1ed9 d\u00e0y, k\u00e9o \u2013 u\u1ed1n (khi c\u1ea7n), ki\u1ec3m tra b\u1ec1 m\u1eb7t, th\u1eed \u0103n m\u00f2n \u0111i\u1ec3m (n\u1ebfu m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t).<\/p>\n<h3>4) H\u1ee3p \u0111\u1ed3ng ch\u1eb7t ch\u1ebd<\/h3>\n<p>&#8211; Vi\u1ec7n d\u1eabn ti\u00eau chu\u1ea9n ASTM A240\/A480\/A312\/A269\/A554, JIS G4304\/G4305; dung sai; y\u00eau c\u1ea7u MTR c\u00f3 heat number; \u0111i\u1ec1u kho\u1ea3n ph\u1ea1t; b\u1ea3o h\u00e0nh b\u1ec1 m\u1eb7t; \u0111i\u1ec1u kho\u1ea3n tr\u1ea3 l\u1ea1i h\u00e0ng.<\/p>\n<h3>5) Ki\u1ec3m tra \u0111\u1ea7u v\u00e0o (IQC)<\/h3>\n<p>&#8211; Ki\u1ec3m \u0111\u1ebfm, c\u00e2n, \u0111o nhi\u1ec1u \u0111i\u1ec3m; PMI ng\u1eabu nhi\u00ean theo AQL; \u0111\u1ed1i chi\u1ebfu heat number \u2013 MTR; l\u1eadp bi\u00ean b\u1ea3n l\u1ed7i k\u00e8m \u1ea3nh trong 24 gi\u1edd.<\/p>\n<h3>6) Qu\u1ea3n l\u00fd thanh to\u00e1n<\/h3>\n<p>&#8211; Theo ti\u1ebfn \u0111\u1ed9 giao h\u00e0ng; gi\u1eef l\u1ea1i 5\u201310% \u0111\u1ebfn khi \u0111\u1ea1t IQC; x\u00e1c minh t\u00e0i kho\u1ea3n \u2013 ph\u00e1p nh\u00e2n.<\/p>\n<h3>7) L\u01b0u kho \u2013 truy xu\u1ea5t<\/h3>\n<p>&#8211; D\u00e1n nh\u00e3n l\u00f4\/heat number, ghi nh\u1eadt k\u00fd v\u1ecb tr\u00ed, FIFO\/FEFO, t\u00e1ch bi\u1ec7t kh\u1ecfi th\u00e9p carbon; b\u1ea3o d\u01b0\u1ee1ng b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-5-bang-kiem-nhanh-inox-buying-checklist\">B\u1ea3ng ki\u1ec3m nhanh (Inox Buying Checklist)<\/h2>\n<p>&#8211; M\u00e1c v\u00e0 chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng (UNS\/ASTM\/JIS) \u0111\u00e3 ghi trong b\u00e1o gi\u00e1\/h\u1ee3p \u0111\u1ed3ng.<br \/>\n&#8211; Dung sai theo ASTM A480 (t\u1ea5m), ASTM A554\/A312 (\u1ed1ng) \u0111\u01b0\u1ee3c vi\u1ec7n d\u1eabn.<br \/>\n&#8211; C\u00f3 y\u00eau c\u1ea7u MTR + CO\/CQ; heat number in\/tem tr\u00ean s\u1ea3n ph\u1ea9m.<br \/>\n&#8211; Th\u1eed PMI cho l\u00f4 quan tr\u1ecdng; \u00edt nh\u1ea5t ki\u1ec3m tra ng\u1eabu nhi\u00ean.<br \/>\n&#8211; B\u00e1o gi\u00e1 r\u00f5 \u0111\u01a1n v\u1ecb (kg\/t\u1ea5m\/m), c\u00e1ch t\u00ednh tr\u1ecdng l\u01b0\u1ee3ng (c\u00e2n th\u1ef1c hay l\u00fd thuy\u1ebft).<br \/>\n&#8211; \u0110i\u1ec1u kho\u1ea3n ph\u1ea1t ch\u1eadm\/sai quy c\u00e1ch; b\u1ea3o h\u00e0nh b\u1ec1 m\u1eb7t v\u00e0 \u0103n m\u00f2n theo m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng.<br \/>\n&#8211; Quy c\u00e1ch \u0111\u00f3ng g\u00f3i: film PVC, VCI, pallet hun tr\u00f9ng; h\u01b0\u1edbng d\u1eabn b\u1ea3o qu\u1ea3n.<br \/>\n&#8211; K\u1ebf ho\u1ea1ch giao nh\u1eadn, bi\u00ean b\u1ea3n ki\u1ec3m h\u00e0ng c\u00f3 \u1ea3nh, ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m.<br \/>\n&#8211; X\u00e1c minh ph\u00e1p nh\u00e2n \u2013 t\u00e0i kho\u1ea3n; l\u1ecbch thanh to\u00e1n g\u1eafn m\u1ed1c nghi\u1ec7m thu.<\/p>\n<h2 id=\"toc-6-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>Magnet test c\u00f3 \u0111\u1ee7 \u0111\u1ec3 ph\u00e2n bi\u1ec7t 304 v\u00e0 201?<\/h3>\n<p>Kh\u00f4ng. 304 sau c\u00e1n ngu\u1ed9i c\u00f3 th\u1ec3 h\u00fat nam ch\u00e2m nh\u1eb9; 201 \u0111\u00f4i khi \u00edt h\u00fat. C\u1ea7n PMI\/XRF ho\u1eb7c ki\u1ec3m ch\u1ee9ng MTR. (Ngu\u1ed3n: ASSDA)<\/p>\n<h3>V\u00ec sao 304 v\u1eabn b\u1ecb \u1ed1 tr\u00e0m ngo\u00e0i tr\u1eddi?<\/h3>\n<p>Do clorua, mu\u1ed1i bi\u1ec3n v\u00e0 thi\u1ebfu v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3. D\u00f9ng 316\/316L v\u00e0 r\u1eeda n\u01b0\u1edbc ng\u1ecdt \u0111\u1ecbnh k\u1ef3 s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3. (Ngu\u1ed3n: Nickel Institute)<\/p>\n<h3>C\u00f3 n\u00ean ch\u1ea5p nh\u1eadn \u0111\u1ed9 d\u00e0y \u201cthi\u1ebfu ch\u00fat\u201d n\u1ebfu theo ASTM?<\/h3>\n<p>\u0110\u01b0\u1ee3c n\u1ebfu n\u1eb1m trong dung sai ASTM A480 \u0111\u00e3 ghi tr\u01b0\u1edbc trong h\u1ee3p \u0111\u1ed3ng. N\u1ebfu t\u00ednh gi\u00e1 theo t\u1ea5m danh ngh\u0129a, c\u1ea7n r\u00e0ng bu\u1ed9c dung sai v\u00e0 ki\u1ec3m \u0111o t\u1ea1i nh\u1eadn h\u00e0ng.<\/p>\n<h2 id=\"toc-7-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n<p>&#8211; ASTM A240\/A480 (t\u1ea5m v\u00e0 dung sai), ASTM A312\/A269 (\u1ed1ng c\u00f4ng nghi\u1ec7p), ASTM A554 (\u1ed1ng trang tr\u00ed), ASTM A380\/A967 (l\u00e0m s\u1ea1ch \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a).<br \/>\n&#8211; JIS G4304\/G4305 \u2013 Th\u00e9p kh\u00f4ng g\u1ec9 c\u00e1n n\u00f3ng\/l\u1ea1nh d\u1ea1ng t\u1ea5m\/cu\u1ed9n.<br \/>\n&#8211; Nickel Institute \u2013 Guidelines for stainless steel selection and corrosion in coastal environments: nickelinstitute.org<br \/>\n&#8211; ASSDA (Australian Stainless Steel Development Association) \u2013 Technical FAQs: assda.asn.au<br \/>\n&#8211; Outokumpu Stainless Steel Handbook: outokumpu.com<\/p>\n<h2 id=\"toc-8-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Nh\u1eefng r\u1ee7i ro l\u1edbn nh\u1ea5t khi mua b\u00e1n inox xoay quanh nh\u1ea7m m\u00e1c, sai dung sai \u2013 b\u1ec1 m\u1eb7t, b\u00e1o gi\u00e1 m\u1eadp m\u1edd, ch\u1ee9ng t\u1eeb kh\u00f4ng chu\u1ea9n v\u00e0 b\u1ea3o qu\u1ea3n k\u00e9m. C\u00e1ch ph\u00f2ng tr\u00e1nh hi\u1ec7u qu\u1ea3 l\u00e0 chu\u1ea9n h\u00f3a y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt theo ASTM\/JIS, ki\u1ec3m ch\u1ee9ng b\u1eb1ng PMI v\u00e0 MTR, minh b\u1ea1ch ph\u01b0\u01a1ng th\u1ee9c t\u00ednh gi\u00e1 \u2013 c\u00e2n th\u1ef1c, thi\u1ebft k\u1ebf \u0111i\u1ec1u kho\u1ea3n h\u1ee3p \u0111\u1ed3ng ch\u1eb7t ch\u1ebd, v\u00e0 th\u1ef1c hi\u1ec7n quy tr\u00ecnh IQC \u2013 l\u01b0u kho chu\u1ea9n. \u00c1p d\u1ee5ng checklist trong b\u00e0i s\u1ebd gi\u00fap doanh nghi\u1ec7p, \u0111\u1ea1i l\u00fd v\u00e0 k\u1ef9 s\u01b0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng, chi ph\u00ed v\u00e0 ti\u1ebfn \u0111\u1ed9 ngay t\u1eeb l\u1ea7n \u0111\u1eb7t h\u00e0ng ti\u1ebfp theo.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n chi ti\u1ebft theo \u1ee9ng d\u1ee5ng v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c? Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c k\u1ef9 s\u01b0 h\u1ed7 tr\u1ee3 v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nh\u1eadn di\u1ec7n 10 r\u1ee7i ro khi mua b\u00e1n inox: nh\u1ea7m m\u00e1c, sai \u0111\u1ed9 d\u00e0y, gian l\u1eadn CO\/CQ, \u1ed1 g\u1ec9, ch\u1eadm ti\u1ebfn \u0111\u1ed9\u2026 k\u00e8m quy tr\u00ecnh ki\u1ec3m so\u00e1t v\u00e0 checklist \u00e1p d\u1ee5ng ngay.<\/p>\n","protected":false},"author":7,"featured_media":1025,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1498","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\/1498","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=1498"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1498\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1025"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}