{"id":1644,"date":"2026-02-07T00:35:33","date_gmt":"2026-02-06T17:35:33","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/phan-biet-ong-inox-cong-nghiep-va-trang-tri-tieu-chuan-ung-dung-2\/"},"modified":"2026-02-07T00:35:33","modified_gmt":"2026-02-06T17:35:33","slug":"phan-biet-ong-inox-cong-nghiep-va-trang-tri-tieu-chuan-ung-dung-2","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/phan-biet-ong-inox-cong-nghiep-va-trang-tri-tieu-chuan-ung-dung-2\/","title":{"rendered":"Ph\u00e2n bi\u1ec7t \u1ed1ng inox c\u00f4ng nghi\u1ec7p v\u00e0 trang tr\u00ed: ti\u00eau chu\u1ea9n, \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-tom-tat-nhanh-dung-loai-nao-cho-nhu-cau-nao\">T\u00f3m t\u1eaft nhanh: d\u00f9ng lo\u1ea1i n\u00e0o cho nhu c\u1ea7u n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-1-tieu-chuan-ap-dung-va-ky-hieu-quan-trong\">Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng v\u00e0 k\u00fd hi\u1ec7u quan tr\u1ecdng<\/a><\/li>\n<li><a href=\"#toc-2-mac-thep-va-kha-nang-chong-an-mon\">M\u00e1c th\u00e9p v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/a><\/li>\n<li><a href=\"#toc-3-kich-thuoc-do-day-schedule-va-dung-sai\">K\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y, schedule v\u00e0 dung sai<\/a><\/li>\n<li><a href=\"#toc-4-cong-nghe-san-xuat-va-xu-ly-be-mat\">C\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-5-co-tinh-va-kha-nang-chiu-ap\">C\u01a1 t\u00ednh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p<\/a><\/li>\n<li><a href=\"#toc-6-gia-cong-lap-dung-va-phu-kien-tuong-thich\">Gia c\u00f4ng, l\u1eafp d\u1ef1ng v\u00e0 ph\u1ee5 ki\u1ec7n t\u01b0\u01a1ng th\u00edch<\/a><\/li>\n<li><a href=\"#toc-7-ung-dung-dien-hinh\">\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/a><\/li>\n<li><a href=\"#toc-8-so-sanh-nhanh-theo-tieu-chi-quan-trong\">So s\u00e1nh nhanh theo ti\u00eau ch\u00ed quan tr\u1ecdng<\/a><\/li>\n<li><a href=\"#toc-9-cach-chon-dung-va-nhung-sai-lam-pho-bien\">C\u00e1ch ch\u1ecdn \u0111\u00fang v\u00e0 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn<\/a><\/li>\n<li><a href=\"#toc-10-chi-phi-va-nguon-cung-tai-viet-nam\">Chi ph\u00ed v\u00e0 ngu\u1ed3n cung t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-11-faq-ngan\">FAQ ng\u1eafn<\/a><\/li>\n<li><a href=\"#toc-12-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-13-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>\u1ed0ng inox (th\u00e9p kh\u00f4ng g\u1ec9) c\u00f3 hai nh\u00f3m ph\u1ed5 bi\u1ebfn: \u1ed1ng c\u00f4ng nghi\u1ec7p v\u00e0 \u1ed1ng trang tr\u00ed. D\u00f9 c\u00f9ng v\u1eadt li\u1ec7u n\u1ec1n, ch\u00fang kh\u00e1c nhau r\u00f5 r\u1ec7t v\u1ec1 ti\u00eau chu\u1ea9n, \u0111\u1ed9 d\u00e0y, dung sai, b\u1ec1 m\u1eb7t, ki\u1ec3m \u0111\u1ecbnh v\u00e0 ph\u1ea1m vi \u1ee9ng d\u1ee5ng. B\u00e0i vi\u1ebft n\u00e0y gi\u00fap b\u1ea1n ph\u00e2n bi\u1ec7t d\u1ee9t kho\u00e1t, ch\u1ecdn \u0111\u00fang ch\u1ee7ng lo\u1ea1i ngay t\u1eeb kh\u00e2u thi\u1ebft k\u1ebf v\u00e0 mua h\u00e0ng. Ch\u1ee7 \u0111\u1ec1 n\u00e0y l\u00e0 m\u1ed9t m\u1ea3nh gh\u00e9p quan tr\u1ecdng trong b\u1ee9c tranh t\u1ed5ng quan s\u1ea3n ph\u1ea9m inox (t\u1ea5m, cu\u1ed9n, \u1ed1ng, h\u1ed9p, thanh \u0111\u1eb7c), nh\u01b0ng n\u1ed9i dung d\u01b0\u1edbi \u0111\u00e2y t\u1eadp trung 100% v\u00e0o \u1ed1ng.<\/p>\n<h2 id=\"toc-0-tom-tat-nhanh-dung-loai-nao-cho-nhu-cau-nao\">T\u00f3m t\u1eaft nhanh: d\u00f9ng lo\u1ea1i n\u00e0o cho nhu c\u1ea7u n\u00e0o?<\/h2>\n<p>&#8211; \u1ed0ng inox c\u00f4ng nghi\u1ec7p: D\u00e0nh cho \u0111\u01b0\u1eddng \u1ed1ng ch\u1ecbu \u00e1p, ch\u1ecbu nhi\u1ec7t, \u0103n m\u00f2n; y\u00eau c\u1ea7u theo ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt nghi\u00eam ng\u1eb7t, th\u1eed \u00e1p\/NDT, c\u00f3 schedule (5S\/10S\/40S&#8230;). D\u00f9ng trong: h\u01a1i, n\u01b0\u1edbc n\u00f3ng, h\u00f3a ch\u1ea5t, d\u1ea7u kh\u00ed, th\u1ef1c ph\u1ea9m \u2013 d\u01b0\u1ee3c (sanitary).<br \/>\n&#8211; \u1ed0ng inox trang tr\u00ed: D\u00e0nh cho m\u1ee5c \u0111\u00edch ki\u1ebfn tr\u00fac \u2013 n\u1ed9i ngo\u1ea1i th\u1ea5t \u2013 c\u01a1 kh\u00ed nh\u1eb9; \u01b0u ti\u00ean b\u1ec1 m\u1eb7t \u0111\u1eb9p (HL\/No.4\/8K), th\u00e0nh m\u1ecfng, tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, dung sai th\u1ea9m m\u1ef9 ch\u1eb7t. D\u00f9ng trong: lan can, khung bi\u1ec3n b\u1ea3ng, tay v\u1ecbn, \u1ed1p trang tr\u00ed, k\u1ebft c\u1ea5u nh\u1eb9.<\/p>\n<h2 id=\"toc-1-tieu-chuan-ap-dung-va-ky-hieu-quan-trong\">Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng v\u00e0 k\u00fd hi\u1ec7u quan tr\u1ecdng<\/h2>\n<h3>\u1ed0ng inox c\u00f4ng nghi\u1ec7p<\/h3>\n<p>&#8211; ASTM A312\/ASME SA-312: \u1ed0ng seamless v\u00e0 welded austenit cho d\u1ecbch v\u1ee5 chung (pressure piping). Li\u00ean quan k\u00edch th\u01b0\u1edbc: ASME B36.19M (NPS v\u00e0 Schedule S).<br \/>\n&#8211; ASTM A358: \u1ed0ng h\u00e0n m\u1ed1i h\u00e0n ng\u1eadp (SAW) cho k\u00edch th\u01b0\u1edbc l\u1edbn.<br \/>\n&#8211; EN 10217-7: \u1ed0ng h\u00e0n inox cho m\u1ee5c \u0111\u00edch \u00e1p l\u1ef1c.<br \/>\n&#8211; ASTM A269\/A270 (sanitary) v\u00e0 ASME BPE: \u1ed0ng v\u1ec7 sinh cho th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c, y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t trong m\u1ecbn (Ra \u0111\u1eb7c th\u00f9), t\u1ea9y passivation, c\u00f3 th\u1ec3 \u0111\u00e1nh b\u00f3ng \u0111i\u1ec7n.<br \/>\n&#8211; L\u1eafp \u0111\u1eb7t th\u01b0\u1eddng theo ASME B31.3 (\u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng ngh\u1ec7) ho\u1eb7c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng trong nh\u00e0 m\u00e1y.<\/p>\n<p>\u0110\u1eb7c tr\u01b0ng: c\u00f3 th\u1eed \u00e1p\/hay NDE b\u1eaft bu\u1ed9c theo ASTM A999; \u01b0u ti\u00ean c\u01a1 t\u00ednh, \u0111\u1ed9 k\u00edn, kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p\/\u0103n m\u00f2n h\u01a1n l\u00e0 th\u1ea9m m\u1ef9 b\u00ean ngo\u00e0i.<\/p>\n<h3>\u1ed0ng inox trang tr\u00ed (mechanical\/ornamental tubing)<\/h3>\n<p>&#8211; ASTM A554: \u1ed0ng inox h\u00e0n cho m\u1ee5c \u0111\u00edch c\u01a1 kh\u00ed\/\u0111\u1ed3 trang tr\u00ed (tr\u00f2n, vu\u00f4ng, ch\u1eef nh\u1eadt).<br \/>\n&#8211; EN 10296-2: \u1ed0ng c\u01a1 kh\u00ed inox h\u00e0n cho k\u1ebft c\u1ea5u.<br \/>\n&#8211; JIS G3448 (m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng d\u00e2n d\u1ee5ng): \u1ed0ng inox cho h\u1ec7 \u1ed1ng chung, kh\u00f4ng ph\u1ea3i \u1ed1ng \u00e1p l\u1ef1c n\u1eb7ng.<\/p>\n<p>\u0110\u1eb7c tr\u01b0ng: ch\u00fa tr\u1ecdng b\u1ec1 m\u1eb7t (No.4\/HL\/mirror 8K\/BA), dung sai th\u1ea9m m\u1ef9 ch\u1eb7t (\u0111\u1ed9 tr\u00f2n, \u0111\u1ed9 th\u1eb3ng, v\u1ebft x\u01b0\u1edbc), th\u01b0\u1eddng kh\u00f4ng y\u00eau c\u1ea7u th\u1eed \u00e1p b\u1eaft bu\u1ed9c.<\/p>\n<h2 id=\"toc-2-mac-thep-va-kha-nang-chong-an-mon\">M\u00e1c th\u00e9p v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/h2>\n<p>&#8211; 201 (Cr-Mn-Ni th\u1ea5p): Gi\u00e1 t\u1ed1t, \u0111\u1ee7 cho n\u1ed9i th\u1ea5t kh\u00f4, n\u01a1i s\u1ea1ch; k\u00e9m b\u1ec1n chloride, d\u1ec5 \u1ed1 v\u00e0ng\/g\u1ec9 trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n, axit y\u1ebfu, clo h\u1ed3 b\u01a1i.<br \/>\n&#8211; 304\/304L: C\u00e2n b\u1eb1ng t\u1ed1t gi\u1eefa gi\u00e1 \u2013 b\u1ec1n \u0103n m\u00f2n; d\u00f9ng r\u1ed9ng r\u00e3i cho c\u00f4ng nghi\u1ec7p nh\u1eb9, F&#038;B, ki\u1ebfn tr\u00fac ngo\u00e0i tr\u1eddi n\u1ed9i \u0111\u1ecba (kh\u00f4ng m\u1eb7n), n\u01b0\u1edbc sinh ho\u1ea1t.<br \/>\n&#8211; 316\/316L (Mo ~2%): Ch\u1ed1ng \u0103n m\u00f2n chloride t\u1ed1t h\u01a1n nhi\u1ec1u; khuy\u1ebfn ngh\u1ecb cho ven bi\u1ec3n, h\u00f3a ch\u1ea5t nh\u1eb9, b\u1ed3n\/\u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc mu\u1ed1i, thi\u1ebft b\u1ecb ngo\u00e0i kh\u01a1i.<br \/>\n&#8211; 321\/310S: D\u1ecbch v\u1ee5 nhi\u1ec7t \u0111\u1ed9 cao (\u00edt g\u1eb7p trong trang tr\u00ed).<\/p>\n<p>G\u1ee3i \u00fd nhanh:<br \/>\n&#8211; N\u1ed9i th\u1ea5t kh\u00f4, khung nh\u1eb9 gi\u00e1 t\u1ed1t: 201\/304 (\u1ed1ng trang tr\u00ed).<br \/>\n&#8211; Ngo\u1ea1i th\u1ea5t \u0111\u00f4 th\u1ecb, m\u01b0a n\u1eafng: 304 (\u1ed1ng trang tr\u00ed ho\u1eb7c c\u00f4ng nghi\u1ec7p t\u00f9y t\u1ea3i).<br \/>\n&#8211; Ven bi\u1ec3n\/ho\u00e1 ch\u1ea5t: 316L (\u01b0u ti\u00ean \u1ed1ng c\u00f4ng nghi\u1ec7p n\u1ebfu ch\u1ecbu \u00e1p\/\u0103n m\u00f2n).<br \/>\n&#8211; Quy tr\u00ecnh th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c: 304L\/316L ti\u00eau chu\u1ea9n sanitary (A270\/BPE).<\/p>\n<h2 id=\"toc-3-kich-thuoc-do-day-schedule-va-dung-sai\">K\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y, schedule v\u00e0 dung sai<\/h2>\n<h3>\u1ed0ng c\u00f4ng nghi\u1ec7p<\/h3>\n<p>&#8211; H\u1ec7 k\u00edch th\u01b0\u1edbc: NPS (inch) v\u00e0 Schedule S theo ASME B36.19M, v\u00ed d\u1ee5 1\u201d, 2\u201d, 4\u201d v\u1edbi SCH 5S\/10S\/40S\u2026; OD c\u1ed1 \u0111\u1ecbnh theo NPS, \u0111\u1ed9 d\u00e0y thay \u0111\u1ed5i theo schedule.<br \/>\n&#8211; Chi\u1ec1u d\u00e0y: t\u1eeb m\u1ecfng (SCH 5S ~1.65 mm \u1edf k\u00edch c\u1ee1 nh\u1ecf) t\u1edbi d\u00e0y (SCH 40S tr\u1edf l\u00ean). C\u00f3 c\u1ea3 \u1ed1ng \u0111\u00fac (seamless) cho \u00e1p cao.<br \/>\n&#8211; Dung sai: tu\u00e2n ASTM A312\/A999 (\u0111\u01b0\u1eddng k\u00ednh, \u0111\u1ed9 d\u00e0y, \u0111\u1ed9 th\u1eb3ng), t\u1eadp trung ch\u1ee9c n\u0103ng h\u01a1n th\u1ea9m m\u1ef9; chi\u1ec1u d\u00e0i th\u01b0\u1eddng 6 m (ho\u1eb7c ng\u1eabu nhi\u00ean).<br \/>\n&#8211; M\u1ed1i h\u00e0n trong th\u01b0\u1eddng kh\u00f4ng m\u00e0i ph\u1eb3ng, tr\u1eeb khi y\u00eau c\u1ea7u (sanitary y\u00eau c\u1ea7u m\u00e0i\/ph\u1ee7, Ra ki\u1ec3m so\u00e1t).<\/p>\n<h3>\u1ed0ng trang tr\u00ed<\/h3>\n<p>&#8211; H\u1ec7 k\u00edch th\u01b0\u1edbc: metric (phi 9.5\u2013114 mm l\u00e0 ph\u1ed5 bi\u1ebfn), vu\u00f4ng\/ch\u1eef nh\u1eadt \u0111a d\u1ea1ng; chi\u1ec1u d\u00e0i chu\u1ea9n 6 m.<br \/>\n&#8211; Th\u00e0nh \u1ed1ng: m\u1ecfng, th\u01b0\u1eddng 0.5\u20131.5 mm (t\u1ed1i \u0111a ~2.0\u20133.0 mm cho c\u1ee1 l\u1edbn).<br \/>\n&#8211; Dung sai: OD\/\u0111\u1ed9 tr\u00f2n\/\u0111\u1ed9 th\u1eb3ng ch\u1eb7t h\u01a1n \u0111\u1ec3 b\u1ea3o \u0111\u1ea3m th\u1ea9m m\u1ef9; m\u1ed1i h\u00e0n trong th\u01b0\u1eddng c\u1ea1o g\u1edd (bead rolled) \u0111\u1ec3 d\u1ec5 u\u1ed1n, b\u1ec1 m\u1eb7t ngo\u00e0i \u0111\u1ea1t HL\/8K.<\/p>\n<p>K\u1ebft lu\u1eadn ph\u1ea7n k\u00edch th\u01b0\u1edbc: \u1ed1ng c\u00f4ng nghi\u1ec7p d\u00f9ng h\u1ec7 NPS\/Schedule v\u00e0 \u01b0u ti\u00ean \u0111\u1ed9 d\u00e0y \u2013 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p; \u1ed1ng trang tr\u00ed d\u00f9ng h\u1ec7 metric, th\u00e0nh m\u1ecfng, \u01b0u ti\u00ean ngo\u1ea1i quan.<\/p>\n<h2 id=\"toc-4-cong-nghe-san-xuat-va-xu-ly-be-mat\">C\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/h2>\n<p>&#8211; T\u1ea1o \u1ed1ng: \u0111a ph\u1ea7n t\u1eeb d\u1ea3i inox c\u00e1n ngu\u1ed9i\/c\u00e1n n\u00f3ng, t\u1ea1o h\u00ecnh v\u00e0 h\u00e0n d\u1ecdc (TIG\/laser\/HF). \u1ed0ng c\u00f4ng nghi\u1ec7p c\u00f3 c\u1ea3 seamless (\u0111\u00f9n\/\u0111\u1ee5c l\u1ed7) cho \u00e1p cao.<br \/>\n&#8211; \u1ee6 v\u00e0 t\u1ea9y: \u1ed0ng c\u00f4ng nghi\u1ec7p th\u01b0\u1eddng \u1ee7 h\u00f2a tan (solution anneal) v\u00e0 t\u1ea9y pickling + passivation \u0111\u1ec3 ph\u1ee5c h\u1ed3i m\u00e0ng th\u1ee5 \u0111\u1ed9ng ch\u1ed1ng g\u1ec9, \u0111\u1eb7c bi\u1ec7t sau h\u00e0n.<br \/>\n&#8211; Ki\u1ec3m tra: \u1ed0ng c\u00f4ng nghi\u1ec7p y\u00eau c\u1ea7u th\u1eed \u00e1p ho\u1eb7c NDE (eddy current\/UT) theo ASTM A999; ki\u1ec3m tra PMI m\u00e1c th\u00e9p, ch\u1ee9ng ch\u1ec9 MTC 3.1 theo EN 10204.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t:<br \/>\n  &#8211; C\u00f4ng nghi\u1ec7p: No.1 (t\u1ea9y g\u1ec9 x\u00e1m) ho\u1eb7c 2B m\u1edd; v\u1edbi sanitary c\u00f3 \u0111\u00e1nh b\u00f3ng trong\/ngo\u00e0i (v\u00ed d\u1ee5 Ra \u2264 0.8 \u03bcm ho\u1eb7c th\u1ea5p h\u01a1n) v\u00e0 c\u00f3 th\u1ec3 \u0111i\u1ec7n h\u00f3a.<br \/>\n  &#8211; Trang tr\u00ed: No.4\/HL (hairline), Satin, Mirror 8K, BA (bright annealed). C\u00f3 m\u00e0ng PE b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t.<\/p>\n<h2 id=\"toc-5-co-tinh-va-kha-nang-chiu-ap\">C\u01a1 t\u00ednh v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p<\/h2>\n<p>&#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p: y\u00eau c\u1ea7u c\u01a1 t\u00ednh t\u1ed1i thi\u1ec3u theo ti\u00eau chu\u1ea9n (v\u00ed d\u1ee5 v\u1edbi TP304: Rp0.2 ~205 MPa, Rm ~515 MPa \u2013 gi\u00e1 tr\u1ecb tham kh\u1ea3o), \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf theo \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c, nhi\u1ec7t \u0111\u1ed9, \u0103n m\u00f2n; c\u00f3 th\u1ec3 t\u00ednh nhanh theo c\u00f4ng th\u1ee9c Barlow \u0111\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng \u00e1p su\u1ea5t ph\u00e1 h\u1ee7y nh\u01b0ng thi\u1ebft k\u1ebf ph\u1ea3i theo code (ASME B31.3).<br \/>\n&#8211; \u1ed0ng trang tr\u00ed: kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u00e1p l\u1ef1c; th\u00e0nh m\u1ecfng, m\u1ed1i h\u00e0n v\u00e0 x\u1eed l\u00fd kh\u00f4ng nh\u1eb1m m\u1ee5c ti\u00eau ch\u1ecbu \u00e1p\/chu k\u1ef3 nhi\u1ec7t. Kh\u00f4ng d\u00f9ng cho h\u01a1i\/n\u01b0\u1edbc n\u00f3ng\/ho\u00e1 ch\u1ea5t \u00e1p l\u1ef1c d\u00f9 c\u00f9ng m\u00e1c th\u00e9p.<\/p>\n<p>\u0110i\u1ec3m m\u1ea5u ch\u1ed1t: \u0111\u1eebng thay th\u1ebf \u1ed1ng c\u00f4ng nghi\u1ec7p b\u1eb1ng \u1ed1ng trang tr\u00ed trong h\u1ec7 th\u1ed1ng c\u00f3 \u00e1p \u2013 r\u1ee7i ro r\u00f2 r\u1ec9, n\u1ed5, \u0103n m\u00f2n k\u1ebd h\u1edf v\u00e0 m\u1ea5t an to\u00e0n.<\/p>\n<h2 id=\"toc-6-gia-cong-lap-dung-va-phu-kien-tuong-thich\">Gia c\u00f4ng, l\u1eafp d\u1ef1ng v\u00e0 ph\u1ee5 ki\u1ec7n t\u01b0\u01a1ng th\u00edch<\/h2>\n<p>&#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p:<br \/>\n  &#8211; Ph\u1ee5 ki\u1ec7n: h\u00e0n \u0111\u1ed1i \u0111\u1ea7u (ASME B16.9), ren (B1.20.1), r\u00e3nh; sanitary d\u00f9ng clamp (Tri\u2011Clamp) theo BPE.<br \/>\n  &#8211; H\u00e0n: GTAW (TIG), GMAW (MIG), SMAW; y\u00eau c\u1ea7u kh\u00ed tr\u01a1 b\u1ea3o v\u1ec7 m\u1eb7t trong (back purging) cho \u0111\u01b0\u1eddng \u1ed1ng s\u1ea1ch.<br \/>\n  &#8211; U\u1ed1n: th\u00e0nh d\u00e0y, b\u00e1n k\u00ednh u\u1ed1n l\u1edbn h\u01a1n; ki\u1ec3m so\u00e1t ovality, n\u1ee9t h\u1ea1t.<br \/>\n&#8211; \u1ed0ng trang tr\u00ed:<br \/>\n  &#8211; Ph\u1ee5 ki\u1ec7n: co n\u1ed1i m\u1ecfng, ke\/\u0111\u1ebf tay v\u1ecbn, c\u00fat trang tr\u00ed; th\u01b0\u1eddng h\u00e0n ch\u1ea5m, h\u00e0n TIG m\u1ecfng, ho\u1eb7c b\u1eaft v\u00edt\/keo.<br \/>\n  &#8211; U\u1ed1n: d\u1ec5 u\u1ed1n\/l\u1ed1c nh\u1edd th\u00e0nh m\u1ecfng v\u00e0 m\u00e0i g\u1edd h\u00e0n trong; ch\u00fa \u00fd nh\u0103n s\u00f3ng \u1edf b\u00e1n k\u00ednh nh\u1ecf.<\/p>\n<h2 id=\"toc-7-ung-dung-dien-hinh\">\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/h2>\n<p>&#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p: \u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc DI\/RO, h\u01a1i b\u00e3o h\u00f2a, CIP\/SIP trong F&#038;B, acid\/base lo\u00e3ng, d\u01b0\u1ee3c ph\u1ea9m, h\u00f3a ch\u1ea5t h\u1eefu c\u01a1, h\u1ec7 PCCC \u0111\u1eb7c th\u00f9 b\u1eb1ng inox, HVAC corrosion-prone, gi\u00e0n ngo\u00e0i kh\u01a1i (316L).<br \/>\n&#8211; \u1ed0ng trang tr\u00ed: lan can, tay v\u1ecbn thang, khung bi\u1ec3n b\u1ea3ng, gi\u00e0n m\u00e1i che, n\u1eb9p vi\u1ec1n, \u1ed1p trang tr\u00ed m\u1eb7t d\u1ef1ng, khung m\u00e1y nh\u1eb9, \u1ed1ng lu\u1ed3n d\u00e2y cho n\u1ed9i th\u1ea5t.<\/p>\n<h2 id=\"toc-8-so-sanh-nhanh-theo-tieu-chi-quan-trong\">So s\u00e1nh nhanh theo ti\u00eau ch\u00ed quan tr\u1ecdng<\/h2>\n<p>&#8211; Ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; C\u00f4ng nghi\u1ec7p: ASTM A312, EN 10217-7, ASTM A270, ASME BPE.<br \/>\n  &#8211; Trang tr\u00ed: ASTM A554, EN 10296-2.<br \/>\n&#8211; H\u1ec7 k\u00edch th\u01b0\u1edbc:<br \/>\n  &#8211; C\u00f4ng nghi\u1ec7p: NPS + Schedule S.<br \/>\n  &#8211; Trang tr\u00ed: metric, vu\u00f4ng\/ch\u1eef nh\u1eadt.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y:<br \/>\n  &#8211; C\u00f4ng nghi\u1ec7p: d\u1ea3i r\u1ed9ng, c\u00f3 schedule d\u00e0y, c\u00f3 seamless.<br \/>\n  &#8211; Trang tr\u00ed: m\u1ecfng, 0.5\u20131.5 mm l\u00e0 ph\u1ed5 bi\u1ebfn.<br \/>\n&#8211; Ki\u1ec3m \u0111\u1ecbnh:<br \/>\n  &#8211; C\u00f4ng nghi\u1ec7p: th\u1eed \u00e1p\/NDE b\u1eaft bu\u1ed9c, MTC, c\u00f3 th\u1ec3 PMI.<br \/>\n  &#8211; Trang tr\u00ed: ki\u1ec3m th\u1ea9m m\u1ef9, c\u01a1 t\u00ednh c\u01a1 b\u1ea3n; th\u01b0\u1eddng kh\u00f4ng th\u1eed \u00e1p.<br \/>\n&#8211; B\u1ec1 m\u1eb7t:<br \/>\n  &#8211; C\u00f4ng nghi\u1ec7p: No.1\/2B; sanitary c\u00f3 Ra ki\u1ec3m so\u00e1t, \u0111\u00e1nh b\u00f3ng\/\u0111i\u1ec7n h\u00f3a.<br \/>\n  &#8211; Trang tr\u00ed: HL\/No.4\/8K\/BA.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng:<br \/>\n  &#8211; C\u00f4ng nghi\u1ec7p: ch\u1ecbu \u00e1p\/\u0103n m\u00f2n.<br \/>\n  &#8211; Trang tr\u00ed: ki\u1ebfn tr\u00fac\/k\u1ebft c\u1ea5u nh\u1eb9.<\/p>\n<h2 id=\"toc-9-cach-chon-dung-va-nhung-sai-lam-pho-bien\">C\u00e1ch ch\u1ecdn \u0111\u00fang v\u00e0 nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn<\/h2>\n<p>Quy tr\u00ecnh ch\u1ecdn:<br \/>\n1) X\u00e1c \u0111\u1ecbnh ch\u1ee9c n\u0103ng: c\u00f3 \u00e1p l\u1ef1c\/ nhi\u1ec7t\/ h\u00f3a ch\u1ea5t kh\u00f4ng? N\u1ebfu c\u00f3, d\u00f9ng \u1ed1ng c\u00f4ng nghi\u1ec7p.<br \/>\n2) M\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n: trong nh\u00e0 kh\u00f4 (201\/304), ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb (304), ven bi\u1ec3n\/ho\u00e1 ch\u1ea5t (316L).<br \/>\n3) Y\u00eau c\u1ea7u v\u1ec7 sinh: th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c \u2192 ASTM A270\/ASME BPE, b\u1ec1 m\u1eb7t trong Ra ph\u00f9 h\u1ee3p, y\u00eau c\u1ea7u passivation.<br \/>\n4) T\u1ea3i tr\u1ecdng\/c\u01a1 kh\u00ed: k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c \u2192 \u01b0u ti\u00ean \u1ed1ng c\u00f4ng nghi\u1ec7p ho\u1eb7c \u1ed1ng c\u01a1 kh\u00ed theo EN 10296-2 th\u00e0nh \u0111\u1ee7 d\u00e0y.<br \/>\n5) Dung sai \u2013 b\u1ec1 m\u1eb7t: ki\u1ebfn tr\u00fac cao c\u1ea5p \u2192 \u1ed1ng trang tr\u00ed A554, ho\u00e0n thi\u1ec7n HL\/8K.<br \/>\n6) Ki\u1ec3m tra \u2013 ch\u1ee9ng ch\u1ec9: y\u00eau c\u1ea7u MTC 3.1, PMI ng\u1eabu nhi\u00ean, ki\u1ec3m dung sai\/\u0111\u1ed9 d\u00e0y, quan s\u00e1t m\u1ed1i h\u00e0n trong ngo\u00e0i.<\/p>\n<p>Sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p:<br \/>\n&#8211; D\u00f9ng \u1ed1ng trang tr\u00ed (201\/304, th\u00e0nh m\u1ecfng) cho \u0111\u01b0\u1eddng \u1ed1ng n\u01b0\u1edbc n\u00f3ng\/h\u01a1i \u2192 r\u00f2 r\u1ec9, ph\u1ed3ng m\u1ed1i h\u00e0n.<br \/>\n&#8211; D\u00f9ng 201 ngo\u00e0i tr\u1eddi ven bi\u1ec3n \u2192 \u1ed1 v\u00e0ng\/g\u1ec9 nhanh.<br \/>\n&#8211; B\u1ecf qua passivation sau h\u00e0n khi l\u1eafp \u1ed1ng c\u00f4ng nghi\u1ec7p \u2192 g\u1ec9 n\u00e2u t\u1ea1i HAZ.<br \/>\n&#8211; Ch\u1ecdn \u1ed1ng sanitary ch\u1ec9 v\u00ec \u201cb\u00f3ng \u0111\u1eb9p\u201d nh\u01b0ng kh\u00f4ng c\u1ea7n thi\u1ebft \u2192 \u0111\u1ed9i chi ph\u00ed.<\/p>\n<h2 id=\"toc-10-chi-phi-va-nguon-cung-tai-viet-nam\">Chi ph\u00ed v\u00e0 ngu\u1ed3n cung t\u1ea1i Vi\u1ec7t Nam<\/h2>\n<p>&#8211; \u1ed0ng trang tr\u00ed th\u01b0\u1eddng r\u1ebb h\u01a1n nh\u1edd th\u00e0nh m\u1ecfng, ho\u00e0n thi\u1ec7n h\u00e0ng lo\u1ea1t; 201 r\u1ebb h\u01a1n 304 kho\u1ea3ng 15\u201330%, 316L cao h\u01a1n 304 kho\u1ea3ng 25\u201350% t\u00f9y th\u1eddi \u0111i\u1ec3m th\u1ecb tr\u01b0\u1eddng nickel.<br \/>\n&#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p gi\u00e1 cao h\u01a1n do ti\u00eau chu\u1ea9n, th\u1eed nghi\u1ec7m, th\u00e0nh d\u00e0y, c\u00f3 seamless\/sanitary.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0i ph\u1ed5 bi\u1ebfn 6 m; c\u00f3 th\u1ec3 \u0111\u1eb7t c\u1eaft theo y\u00eau c\u1ea7u. Y\u00eau c\u1ea7u b\u00e1o gi\u00e1 n\u00ean k\u00e8m: m\u00e1c th\u00e9p, ti\u00eau chu\u1ea9n (A312\/A554\u2026), k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y\/schedule, b\u1ec1 m\u1eb7t, s\u1ed1 l\u01b0\u1ee3ng, ki\u1ec3m \u0111\u1ecbnh (MTC, PMI, NDE).<\/p>\n<h2 id=\"toc-11-faq-ngan\">FAQ ng\u1eafn<\/h2>\n<p>&#8211; \u1ed0ng trang tr\u00ed c\u00f3 d\u00f9ng cho n\u01b0\u1edbc sinh ho\u1ea1t? C\u00f3 th\u1ec3 v\u1edbi n\u01b0\u1edbc l\u1ea1nh, \u00e1p th\u1ea5p, m\u00f4i tr\u01b0\u1eddng s\u1ea1ch; tuy nhi\u00ean khuy\u1ebfn ngh\u1ecb \u1ed1ng c\u00f4ng nghi\u1ec7p A312 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 k\u00edn v\u00e0 tu\u1ed5i th\u1ecd.<br \/>\n&#8211; 201 c\u00f3 d\u00f9ng ngo\u00e0i tr\u1eddi? Ch\u1ec9 n\u00ean \u1edf m\u00f4i tr\u01b0\u1eddng kh\u00f4, xa bi\u1ec3n; n\u1ebfu g\u1ea7n bi\u1ec3n ho\u1eb7c c\u00f3 clo, ch\u1ecdn 316L.<br \/>\n&#8211; Sanitary kh\u00e1c g\u00ec c\u00f4ng nghi\u1ec7p th\u01b0\u1eddng? Sanitary (A270\/BPE) l\u00e0 \u201cphi\u00ean b\u1ea3n s\u1ea1ch\u201d c\u1ee7a \u1ed1ng c\u00f4ng nghi\u1ec7p: ki\u1ec3m so\u00e1t Ra, m\u00e0i g\u1edd trong, passivation\/\u0111i\u1ec7n h\u00f3a, \u0111\u00f3ng g\u00f3i s\u1ea1ch.<\/p>\n<h2 id=\"toc-12-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; ASTM A312\/A999 \u2013 Seamless and Welded Austenitic Stainless Steel Pipes; General Requirements.<br \/>\n&#8211; ASME B36.19M \u2013 Stainless Steel Pipe (k\u00edch th\u01b0\u1edbc NPS, Schedule S).<br \/>\n&#8211; ASTM A554 \u2013 Welded Stainless Steel Mechanical Tubing (\u1ed1ng trang tr\u00ed\/c\u01a1 kh\u00ed).<br \/>\n&#8211; EN 10217-7 \u2013 Welded steel tubes for pressure purposes; Stainless steel.<br \/>\n&#8211; EN 10296-2 \u2013 Welded circular steel tubes for mechanical and general engineering purposes; Stainless steels.<br \/>\n&#8211; ASTM A270 v\u00e0 ASME BPE \u2013 Sanitary tubing cho th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c.<br \/>\n&#8211; ASME B31.3 \u2013 Process Piping (thi\u1ebft k\u1ebf l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng ngh\u1ec7).<br \/>\n&#8211; Nickel Institute \u2013 Guidelines for selection of stainless steels in chloride environments.<\/p>\n<h2 id=\"toc-13-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>Kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i gi\u1eefa \u1ed1ng inox c\u00f4ng nghi\u1ec7p v\u00e0 \u1ed1ng inox trang tr\u00ed n\u1eb1m \u1edf m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng v\u00e0 ti\u00eau chu\u1ea9n: c\u00f4ng nghi\u1ec7p \u01b0u ti\u00ean an to\u00e0n \u2013 \u0111\u1ed9 b\u1ec1n \u2013 ch\u1ecbu \u00e1p (A312\/EN 10217-7, c\u00f3 th\u1eed \u00e1p\/NDE, schedule), c\u00f2n trang tr\u00ed \u01b0u ti\u00ean th\u1ea9m m\u1ef9 \u2013 dung sai b\u1ec1 m\u1eb7t (A554\/EN 10296-2, th\u00e0nh m\u1ecfng). H\u00e3y ch\u1ecdn theo ch\u1ee9c n\u0103ng (\u00e1p l\u1ef1c\/nhi\u1ec7t\/\u0103n m\u00f2n), m\u00f4i tr\u01b0\u1eddng (n\u1ed9i\/ngo\u1ea1i th\u1ea5t, ven bi\u1ec3n), y\u00eau c\u1ea7u v\u1ec7 sinh v\u00e0 ng\u00e2n s\u00e1ch. L\u00e0m \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u s\u1ebd t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi v\u00e0 an to\u00e0n v\u1eadn h\u00e0nh.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c th\u00e9p, ti\u00eau chu\u1ea9n v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t? Li\u00ean h\u1ec7 Inox Cuong Thinh \u2013 Hotline: 0343.417.281 \u2013 Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh chi ti\u1ebft \u1ed1ng inox c\u00f4ng nghi\u1ec7p v\u00e0 \u1ed1ng inox trang tr\u00ed: ti\u00eau chu\u1ea9n (ASTM\/EN), v\u1eadt li\u1ec7u, \u0111\u1ed9 d\u00e0y, dung sai, b\u1ec1 m\u1eb7t, kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p v\u00e0 c\u00e1ch ch\u1ecdn \u0111\u00fang.<\/p>\n","protected":false},"author":7,"featured_media":1013,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1644","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\/1644","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=1644"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1644\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1013"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}