{"id":1613,"date":"2026-01-30T00:35:06","date_gmt":"2026-01-29T17:35:06","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/lan-can-inox-cach-chon-mac-thep-toi-uu-tham-my-ben-va-ngan-sach\/"},"modified":"2026-01-30T00:35:06","modified_gmt":"2026-01-29T17:35:06","slug":"lan-can-inox-cach-chon-mac-thep-toi-uu-tham-my-ben-va-ngan-sach","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/lan-can-inox-cach-chon-mac-thep-toi-uu-tham-my-ben-va-ngan-sach\/","title":{"rendered":"Lan can inox: C\u00e1ch ch\u1ecdn m\u00e1c th\u00e9p t\u1ed1i \u01b0u th\u1ea9m m\u1ef9, b\u1ec1n v\u00e0 ng\u00e2n s\u00e1ch"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-4-tieu-chi-then-chot-khi-chon-lan-can-inox\">4 ti\u00eau ch\u00ed then ch\u1ed1t khi ch\u1ecdn lan can inox<\/a><\/li>\n<li><a href=\"#toc-1-chon-mac-inox-theo-moi-truong-tiep-xuc\">Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng ti\u1ebfp x\u00fac<\/a><\/li>\n<li><a href=\"#toc-2-hoan-thien-be-mat-chia-khoa-chong-o-tra-va-giu-ve-\">Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t: ch\u00eca kh\u00f3a ch\u1ed1ng \u1ed1 tr\u00e0 v\u00e0 gi\u1eef v\u1ebb \u0111\u1eb9p<\/a><\/li>\n<li><a href=\"#toc-3-thiet-ke-ket-cau-va-thong-so-ky-thuat-chinh\">Thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh<\/a><\/li>\n<li><a href=\"#toc-4-ngan-sach-so-sanh-chi-phi-va-chi-phi-vong-doi\">Ng\u00e2n s\u00e1ch: so s\u00e1nh chi ph\u00ed v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi<\/a><\/li>\n<li><a href=\"#toc-5-ba-cau-hinh-mau-theo-kich-ban-viet-nam\">Ba c\u1ea5u h\u00ecnh m\u1eabu theo k\u1ecbch b\u1ea3n Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-6-quy-trinh-7-buoc-ra-quyet-dinh-va-dat-hang\">Quy tr\u00ecnh 7 b\u01b0\u1edbc ra quy\u1ebft \u0111\u1ecbnh v\u00e0 \u0111\u1eb7t h\u00e0ng<\/a><\/li>\n<li><a href=\"#toc-7-bao-tri-va-van-hanh\">B\u1ea3o tr\u00ec v\u00e0 v\u1eadn h\u00e0nh<\/a><\/li>\n<li><a href=\"#toc-8-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Lan can inox c\u1ea7n \u0111\u1ed3ng th\u1eddi \u0111\u1eb9p, b\u1ec1n v\u1edbi th\u1eddi ti\u1ebft\/\u0103n m\u00f2n v\u00e0 n\u1eb1m trong ng\u00e2n s\u00e1ch. B\u00e0i vi\u1ebft n\u00e0y l\u00e0 h\u01b0\u1edbng d\u1eabn th\u1ef1c d\u1ee5ng \u0111\u1ec3 b\u1ea1n ch\u1ecdn \u0111\u00fang m\u00e1c inox, ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y, c\u1ea5u h\u00ecnh li\u00ean k\u1ebft v\u00e0 k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec cho lan can trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam. Ch\u1ee7 \u0111\u1ec1 n\u00e0y l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong quy\u1ebft \u0111\u1ecbnh ch\u1ecdn inox theo m\u00f4i tr\u01b0\u1eddng, m\u1ee5c \u0111\u00edch v\u00e0 ng\u00e2n s\u00e1ch, nh\u01b0ng b\u00e0i vi\u1ebft t\u1eadp trung ri\u00eang cho \u1ee9ng d\u1ee5ng lan can.<\/p>\n<h2 id=\"toc-0-4-tieu-chi-then-chot-khi-chon-lan-can-inox\">4 ti\u00eau ch\u00ed then ch\u1ed1t khi ch\u1ecdn lan can inox<\/h2>\n<p>&#8211; M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c: trong nh\u00e0\/ngo\u00e0i tr\u1eddi, g\u1ea7n bi\u1ec3n, h\u1ed3 b\u01a1i, khu c\u00f4ng nghi\u1ec7p, h\u00f3a ch\u1ea5t, \u00f4 nhi\u1ec5m.<br \/>\n&#8211; Th\u1ea9m m\u1ef9 v\u00e0 phong c\u00e1ch: Hairline\/No.4, g\u01b0\u01a1ng 8K, m\u1edd bead-blast, k\u1ebft h\u1ee3p k\u00ednh\/g\u1ed7, \u0111\u1ed9 \u201cs\u1ea1ch\u201d \u1ed1 tr\u00e0.<br \/>\n&#8211; K\u1ebft c\u1ea5u \u2013 an to\u00e0n: t\u1ea3i thi\u1ebft k\u1ebf, chi\u1ec1u cao, kho\u1ea3ng c\u00e1ch tr\u1ee5, \u0111\u01b0\u1eddng k\u00ednh\/\u0111\u1ed9 d\u00e0y \u1ed1ng, ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u v\u00e0 l\u1eafp \u0111\u1eb7t.<br \/>\n&#8211; Ng\u00e2n s\u00e1ch v\u00f2ng \u0111\u1eddi: gi\u00e1 v\u1eadt t\u01b0, chi ph\u00ed gia c\u00f4ng\/l\u1eafp \u0111\u1eb7t, b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3, r\u1ee7i ro thay th\u1ebf s\u1edbm do \u0103n m\u00f2n.<\/p>\n<h2 id=\"toc-1-chon-mac-inox-theo-moi-truong-tiep-xuc\">Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng ti\u1ebfp x\u00fac<\/h2>\n<p>Ch\u00eca kh\u00f3a l\u00e0 kh\u1ea3 n\u0103ng kh\u00e1ng \u0103n m\u00f2n clorua (ven bi\u1ec3n, h\u1ed3 b\u01a1i) v\u00e0 \u00f4 nhi\u1ec5m c\u00f4ng nghi\u1ec7p. Tham chi\u1ebfu nhanh d\u1ef1a tr\u00ean kinh nghi\u1ec7m th\u1ef1c t\u1ebf v\u00e0 khuy\u1ebfn ngh\u1ecb k\u1ef9 thu\u1eadt qu\u1ed1c t\u1ebf.<\/p>\n<h3>Trong nh\u00e0 kh\u00f4 (nh\u00e0 \u1edf, v\u0103n ph\u00f2ng, trung t\u00e2m th\u01b0\u01a1ng m\u1ea1i)<\/h3>\n<p>&#8211; M\u00e1c khuy\u1ebfn ngh\u1ecb: 304\/304L l\u00e0 ti\u00eau chu\u1ea9n v\u00ec \u1ed5n \u0111\u1ecbnh, d\u1ec5 gia c\u00f4ng, b\u00f3ng \u0111\u1eb9p.<br \/>\n&#8211; 201 ch\u1ec9 n\u00ean d\u00f9ng cho n\u1ed9i th\u1ea5t kh\u00f4, th\u00f4ng tho\u00e1ng, kh\u00f4ng ti\u1ebfp x\u00fac \u1ea9m\/ho\u00e1 ch\u1ea5t t\u1ea9y. D\u00f9ng 201 c\u1ea7n ho\u00e0n thi\u1ec7n t\u1ed1t (No.4\/HL m\u1ecbn), b\u1ea3o tr\u00ec v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 h\u1ea1n ch\u1ebf \u1ed1 tr\u00e0.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y khuy\u1ebfn ngh\u1ecb: \u1ed0ng tay v\u1ecbn \u00d838.1\u201342.4 mm, t d\u00e0y 1.0\u20131.2 mm; tr\u1ee5 \u00d842.4\u201350.8 mm, t 1.2\u20131.5 mm.<\/p>\n<h3>Ngo\u00e0i tr\u1eddi n\u1ed9i \u0111\u00f4, c\u00e1ch xa bi\u1ec3n<\/h3>\n<p>&#8211; M\u00e1c khuy\u1ebfn ngh\u1ecb: 304\/304L v\u1edbi ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t m\u1ecbn (Ra \u2264 0.5 \u00b5m) \u0111\u1ec3 h\u1ea1n ch\u1ebf \u1ed1 tr\u00e0; \u01b0u ti\u00ean 316 n\u1ebfu c\u00f3 m\u01b0a axit\/kh\u00f3i c\u00f4ng nghi\u1ec7p.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y: tay v\u1ecbn t 1.2\u20131.5 mm; tr\u1ee5 t 1.5\u20132.0 mm; kho\u1ea3ng c\u00e1ch tr\u1ee5 1.0\u20131.5 m t\u00f9y t\u1ea3i.<\/p>\n<h3>Ven bi\u1ec3n, \u0111\u1ea3o, c\u00f3 s\u01b0\u01a1ng mu\u1ed1i bi\u1ec3n<\/h3>\n<p>&#8211; \u2264 1 km t\u1eeb b\u1edd bi\u1ec3n ho\u1eb7c s\u00e1t s\u00f3ng, c\u1ea7u c\u1ea3ng: 316\/316L v\u1edbi ho\u00e0n thi\u1ec7n g\u01b0\u01a1ng 8K ho\u1eb7c \u0111i\u1ec7n h\u00f3a (electropolish). Khu v\u1ef1c phun n\u01b0\u1edbc m\u1eb7n\/s\u01b0\u01a1ng mu\u1ed1i n\u1eb7ng: c\u00e2n nh\u1eafc duplex 2205 cho tu\u1ed5i th\u1ecd v\u01b0\u1ee3t tr\u1ed9i.<br \/>\n&#8211; 1\u20135 km: 316\/316L l\u00e0 l\u1ef1a ch\u1ecdn an to\u00e0n; 304 d\u1ec5 \u1ed1 tr\u00e0 v\u00e0 pitting n\u1ebfu ho\u00e0n thi\u1ec7n\/m\u00e1y v\u1ec7 sinh kh\u00f4ng \u0111\u00fang.<br \/>\n&#8211; L\u01b0u \u00fd thi\u1ebft k\u1ebf ch\u1ed1ng khe (crevice) v\u00e0 tho\u00e1t n\u01b0\u1edbc, tr\u00e1nh b\u1eaby mu\u1ed1i t\u1ea1i ch\u00e2n tr\u1ee5 v\u00e0 m\u1ed1i gh\u00e9p.<\/p>\n<h3>H\u1ed3 b\u01a1i, c\u00f4ng vi\u00ean n\u01b0\u1edbc, khu spa<\/h3>\n<p>&#8211; 316\/316L b\u1eaft bu\u1ed9c; tr\u00e1nh s\u1eed d\u1ee5ng ch\u1ea5t t\u1ea9y ch\u1ee9a clorua m\u1ea1nh (HCl). Kh\u00f4ng n\u00ean d\u00f9ng 201\/304 v\u00ec nguy c\u01a1 r\u1ed7 pitting cao.<br \/>\n&#8211; \u01afu ti\u00ean electropolish v\u00e0 passivation sau h\u00e0n \u0111\u1ec3 gi\u1ea3m \u1ed1 tr\u00e0.<\/p>\n<h3>Khu c\u00f4ng nghi\u1ec7p\/\u00f4 nhi\u1ec5m, g\u1ea7n \u0111\u01b0\u1eddng l\u1edbn<\/h3>\n<p>&#8211; 304\/304L cho m\u00f4i tr\u01b0\u1eddng v\u1eeba; 316\/316L n\u1ebfu c\u00f3 SOx\/NOx ho\u1eb7c phun s\u01b0\u01a1ng h\u00f3a ch\u1ea5t.<br \/>\n&#8211; L\u1eadp k\u1ebf ho\u1ea1ch v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 v\u00e0 b\u1ec1 m\u1eb7t m\u1ecbn \u0111\u1ec3 gi\u1eef th\u1ea9m m\u1ef9.<\/p>\n<p>G\u1ee3i \u00fd k\u1ef9 thu\u1eadt: ch\u1ec9 s\u1ed1 PREN (Pitting Resistance Equivalent Number) gi\u00fap so s\u00e1nh nhanh kh\u00e1ng r\u1ed7: 304 ~18, 316 ~24, 2205 ~35. PREN c\u00e0ng cao, kh\u00e1ng r\u1ed7 clorua c\u00e0ng t\u1ed1t.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o:<br \/>\n&#8211; Nickel Institute \u2013 Guidelines for stainless selection: https:\/\/nickelinstitute.org<br \/>\n&#8211; ASSDA \u2013 Tea staining and coastal use of stainless: https:\/\/www.assda.asn.au<br \/>\n&#8211; Outokumpu datasheets (304\/316\/2205): https:\/\/www.outokumpu.com<\/p>\n<h2 id=\"toc-2-hoan-thien-be-mat-chia-khoa-chong-o-tra-va-giu-ve-\">Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t: ch\u00eca kh\u00f3a ch\u1ed1ng \u1ed1 tr\u00e0 v\u00e0 gi\u1eef v\u1ebb \u0111\u1eb9p<\/h2>\n<p>&#8211; Lo\u1ea1i ho\u00e0n thi\u1ec7n ph\u1ed5 bi\u1ebfn:<br \/>\n  &#8211; No.4\/Hairline (HL): s\u1ecdc m\u1edd sang tr\u1ecdng, d\u1ec5 che x\u01b0\u1edbc nh\u1eb9; y\u00eau c\u1ea7u \u0111\u00e1nh s\u1ecdc \u0111\u1ed3ng \u0111\u1ec1u, Ra \u2264 0.5\u20130.6 \u00b5m.<br \/>\n  &#8211; G\u01b0\u01a1ng 8K: ph\u1ea3n chi\u1ebfu cao, ch\u1ed1ng b\u00e1m b\u1ea9n\/\u1ed1 tr\u00e0 t\u1ed1t nh\u1ea5t; ph\u00f9 h\u1ee3p v\u00f9ng bi\u1ec3n v\u00e0 d\u1ef1 \u00e1n cao c\u1ea5p.<br \/>\n  &#8211; Bead blast\/m\u1edd tinh: th\u1ea9m m\u1ef9 hi\u1ec7n \u0111\u1ea1i, nh\u01b0ng c\u1ea7n v\u1ec7 sinh \u0111\u1ec1u tay \u0111\u1ec3 tr\u00e1nh loang.<br \/>\n&#8211; X\u1eed l\u00fd sau gia c\u00f4ng:<br \/>\n  &#8211; T\u1ea9y m\u1ed1i h\u00e0n (pickling) v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) theo ASTM A380\/A967 \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1edbp th\u1ee5 \u0111\u1ed9ng Cr2O3.<br \/>\n  &#8211; \u0110i\u1ec7n h\u00f3a (electropolish) t\u0103ng \u0111\u1ed9 m\u1ecbn b\u1ec1 m\u1eb7t, gi\u1ea3m \u0111i\u1ec3m b\u00e1m mu\u1ed1i \u2013 l\u00fd t\u01b0\u1edfng cho ven bi\u1ec3n\/h\u1ed3 b\u01a1i.<br \/>\n&#8211; B\u1ea3o v\u1ec7 trong thi c\u00f4ng: d\u00f9ng b\u1ecdc PE, tr\u00e1nh x\u00e2y tr\u00e1t v\u1eefa\/xi m\u0103ng d\u00ednh l\u00e2u ng\u00e0y (clorua trong v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 g\u00e2y \u1ed1).<br \/>\n&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3: n\u01b0\u1edbc s\u1ea1ch + x\u00e0 ph\u00f2ng nh\u1eb9, kh\u0103n m\u1ec1m; chu k\u1ef3 1\u20133 th\u00e1ng ngo\u00e0i tr\u1eddi, 6\u201312 th\u00e1ng trong nh\u00e0. Tr\u00e1nh t\u1ea9y r\u1eeda c\u00f3 clorua m\u1ea1nh.<\/p>\n<p>T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt:<br \/>\n&#8211; ASTM A380\/A967 \u2013 Cleaning &#038; passivation: https:\/\/www.astm.org<br \/>\n&#8211; ASSDA Technical Bulletin \u2013 Preventing tea staining.<\/p>\n<h2 id=\"toc-3-thiet-ke-ket-cau-va-thong-so-ky-thuat-chinh\">Thi\u1ebft k\u1ebf k\u1ebft c\u1ea5u v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh<\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u \u2013 ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; \u1ed0ng c\u01a1 kh\u00ed h\u00e0n: ASTM A554 (304\/316, \u0111\u1ed9 b\u00f3ng trang tr\u00ed).<br \/>\n  &#8211; \u1ed0ng \u0111\u01b0\u1eddng \u1ed1ng: ASTM A312 (khi c\u1ea7n \u0111\u1ed9 d\u00e0y l\u1edbn, m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t).<br \/>\n  &#8211; T\u1ea5m\/l\u00e1: ASTM A240 (304\/316\/2205).<br \/>\n  &#8211; Ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng: EN 10088; JIS G4304\/4305 (t\u1ea5m), JIS G3446 (\u1ed1ng c\u01a1 kh\u00ed).<br \/>\n&#8211; K\u00edch th\u01b0\u1edbc khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; Tay v\u1ecbn: \u00d838.1\u201342.4\u201350.8 mm; d\u00e0y 1.2\u20131.5 mm (nh\u00e0 \u1edf) v\u00e0 1.5\u20132.0 mm (c\u00f4ng c\u1ed9ng).<br \/>\n  &#8211; Tr\u1ee5: \u00d842.4\u201350.8 mm ho\u1eb7c h\u1ed9p 40\u00d740\u201350\u00d750 mm; d\u00e0y 1.5\u20132.0 mm (nh\u00e0 \u1edf) v\u00e0 2.0\u20133.0 mm (c\u00f4ng c\u1ed9ng).<br \/>\n  &#8211; Kho\u1ea3ng c\u00e1ch tr\u1ee5: 1.0\u20131.5 m; v\u1edbi k\u00ednh\/l\u01b0\u1edbi c\u1ea7n ki\u1ec3m tra \u0111\u1ed9 v\u00f5ng v\u00e0 t\u1ea3i c\u1ee5c b\u1ed9.<br \/>\n&#8211; T\u1ea3i tr\u1ecdng v\u00e0 chi\u1ec1u cao (tham kh\u1ea3o th\u00f4ng l\u1ec7 qu\u1ed1c t\u1ebf \u2013 x\u00e1c nh\u1eadn theo ti\u00eau chu\u1ea9n d\u1ef1 \u00e1n\/\u0111\u1ecba ph\u01b0\u01a1ng):<br \/>\n  &#8211; Chi\u1ec1u cao tay v\u1ecbn: 900\u20131100 mm (nh\u00e0 \u1edf vs c\u00f4ng c\u1ed9ng) theo BS 6180\/IBC.<br \/>\n  &#8211; T\u1ea3i \u0111\u01b0\u1eddng (line load) tr\u00ean tay v\u1ecbn: 0.75\u20131.5 kN\/m; t\u1ea3i \u0111i\u1ec3m: 0.5\u20131.0 kN; \u00e1p l\u1ef1c l\u00ean l\u01b0\u1edbi\/infill: 0.5 kN (BS 6180, EN 1991-1-1; IBC\/ASCE 7 g\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng).<br \/>\n  &#8211; Kho\u1ea3ng h\u1edf an to\u00e0n: khe h\u1edf kh\u00f4ng qu\u00e1 ~100 mm \u0111\u1ec3 tr\u00e1nh l\u1ecdt tr\u1ebb nh\u1ecf (theo th\u00f4ng l\u1ec7 BS\/IBC).<br \/>\n&#8211; K\u1ebft c\u1ea5u li\u00ean k\u1ebft:<br \/>\n  &#8211; \u0110\u1ebf tr\u1ee5: b\u1ea3n m\u00e3 d\u00e0y 6\u201310 mm; bulong n\u1edf\/ho\u00e1 ch\u1ea5t M10\u2013M12 b\u1eb1ng inox A2\/A4; d\u00f9ng gio\u0103ng neoprene\/ng\u0103n n\u01b0\u1edbc \u0111\u1ecdng.<br \/>\n  &#8211; H\u00e0n TIG v\u1edbi kh\u00ed che v\u00e0 back purging cho m\u1ed1i h\u00e0n k\u00edn trong \u1ed1ng; x\u1eed l\u00fd t\u1ea9y\/ th\u1ee5 \u0111\u1ed9ng sau h\u00e0n.<br \/>\n  &#8211; L\u1eafp gh\u00e9p b\u1eb1ng ph\u1ee5 ki\u1ec7n (fittings) gi\u00fap thi c\u00f4ng nhanh, ph\u00f9 h\u1ee3p c\u00f4ng tr\u00ecnh c\u1ea3i t\u1ea1o; y\u00eau c\u1ea7u keo kh\u00f3a ren trung t\u00ednh, kh\u00f4ng clorua.<br \/>\n&#8211; Tr\u00e1nh \u0103n m\u00f2n k\u1ebd: thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc t\u1ea1i ch\u1ee5p \u0111\u1ec9nh tr\u1ee5, khe gh\u00e9p c\u00f3 gio\u0103ng; c\u00e1ch \u0111i\u1ec7n khi ti\u1ebfp x\u00fac kim lo\u1ea1i kh\u00e1c (nh\u00f4m\/th\u00e9p carbon) b\u1eb1ng long-\u0111en nylon\/EPDM \u0111\u1ec3 gi\u1ea3m \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a.<\/p>\n<p>Tham kh\u1ea3o:<br \/>\n&#8211; BS 6180:2011 \u2013 Barriers in and about buildings.<br \/>\n&#8211; IBC\/ASCE 7 \u2013 Loads on handrails\/guards.<\/p>\n<h2 id=\"toc-4-ngan-sach-so-sanh-chi-phi-va-chi-phi-vong-doi\">Ng\u00e2n s\u00e1ch: so s\u00e1nh chi ph\u00ed v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi<\/h2>\n<p>&#8211; T\u1ef7 l\u1ec7 gi\u00e1 v\u1eadt li\u1ec7u tham kh\u1ea3o (bi\u1ebfn \u0111\u1ed9ng theo th\u1ecb tr\u01b0\u1eddng, d\u00f9ng \u0111\u1ec3 so s\u00e1nh):<br \/>\n  &#8211; Inox 201 \u2248 55\u201365% gi\u00e1 304.<br \/>\n  &#8211; Inox 316 \u2248 150\u2013180% gi\u00e1 304.<br \/>\n  &#8211; Duplex 2205 \u2248 220\u2013280% gi\u00e1 304.<br \/>\n&#8211; Chi ph\u00ed gia c\u00f4ng\/ho\u00e0n thi\u1ec7n:<br \/>\n  &#8211; 8K g\u01b0\u01a1ng\/electropolish c\u00f3 th\u1ec3 +20\u201340% so v\u1edbi HL\/No.4 nh\u01b0ng gi\u1ea3m m\u1ea1nh chi ph\u00ed v\u1ec7 sinh\/\u1ed1 tr\u00e0 n\u01a1i kh\u1eafc nghi\u1ec7t.<br \/>\n&#8211; Chi ph\u00ed v\u00f2ng \u0111\u1eddi:<br \/>\n  &#8211; Khu ven bi\u1ec3n: 316 \u0111\u00e1nh b\u00f3ng t\u1ed1t th\u01b0\u1eddng r\u1ebb h\u01a1n 304 v\u1ec1 v\u00f2ng \u0111\u1eddi do 304 ph\u1ea3i v\u1ec7 sinh\/thay th\u1ebf s\u1edbm v\u00ec \u1ed1 tr\u00e0\/pitting.<br \/>\n  &#8211; C\u00f4ng tr\u00ecnh c\u00f4ng c\u1ed9ng: t\u0103ng \u0111\u1ed9 d\u00e0y tr\u1ee5\/\u0111\u1ebf, d\u00f9ng 316 cho khu v\u1ef1c d\u1ec5 ch\u1ea1m tay nhi\u1ec1u s\u1ebd gi\u1ea3m r\u1ee7i ro h\u1ecfng h\u00f3c, chi ph\u00ed b\u1ea3o h\u00e0nh.<\/p>\n<h2 id=\"toc-5-ba-cau-hinh-mau-theo-kich-ban-viet-nam\">Ba c\u1ea5u h\u00ecnh m\u1eabu theo k\u1ecbch b\u1ea3n Vi\u1ec7t Nam<\/h2>\n<p>&#8211; Nh\u00e0 ph\u1ed1 \u2013 c\u1ea7u thang trong nh\u00e0 (kh\u00f4, \u00edt h\u00f3a ch\u1ea5t)<br \/>\n  &#8211; V\u1eadt li\u1ec7u: 304, tay v\u1ecbn \u00d842.4\u00d71.2 mm; tr\u1ee5 \u00d842.4\u00d71.5 mm; No.4\/HL m\u1ecbn.<br \/>\n  &#8211; Li\u00ean k\u1ebft: \u0111\u1ebf tr\u1ee5 b\u1eaft bulong M10 A2; kho\u1ea3ng tr\u1ee5 1.2 m.<br \/>\n  &#8211; B\u1ea3o tr\u00ec: lau s\u1ea1ch 6\u201312 th\u00e1ng\/l\u1ea7n.<br \/>\n  &#8211; Ng\u00e2n s\u00e1ch: t\u1ed1i \u01b0u gi\u1eefa th\u1ea9m m\u1ef9 v\u00e0 chi ph\u00ed.<br \/>\n&#8211; Ban c\u00f4ng c\u0103n h\u1ed9 c\u00e1ch bi\u1ec3n 1\u20133 km<br \/>\n  &#8211; V\u1eadt li\u1ec7u: 316L, tay v\u1ecbn \u00d850.8\u00d71.5\u20132.0 mm; tr\u1ee5 \u00d850.8\u00d72.0 mm; g\u01b0\u01a1ng 8K ho\u1eb7c electropolish.<br \/>\n  &#8211; Li\u00ean k\u1ebft: \u0111\u1ebf tr\u1ee5 k\u00edn n\u01b0\u1edbc, gio\u0103ng EPDM; ph\u1ee5 ki\u1ec7n A4.<br \/>\n  &#8211; B\u1ea3o tr\u00ec: r\u1eeda n\u01b0\u1edbc ng\u1ecdt 1\u20132 th\u00e1ng\/l\u1ea7n; ki\u1ec3m tra \u1ed1c 6 th\u00e1ng.<br \/>\n  &#8211; Ng\u00e2n s\u00e1ch: cao h\u01a1n 304 ~50\u201370% nh\u01b0ng gi\u1ea3m \u1ed1 tr\u00e0, b\u1ec1n l\u00e2u.<br \/>\n&#8211; H\u00e0nh lang nh\u00e0 m\u00e1y\/kh\u00e1ch s\u1ea1n c\u00f3 h\u1ed3 b\u01a1i n\u01b0\u1edbc m\u1eb7n<br \/>\n  &#8211; V\u1eadt li\u1ec7u: 316L; khu phun s\u01b0\u01a1ng mu\u1ed1i \u0111\u1eadm \u0111\u1eb7c xem x\u00e9t 2205 cho tr\u1ee5.<br \/>\n  &#8211; Ho\u00e0n thi\u1ec7n: electropolish; t\u1ea5t c\u1ea3 m\u1ed1i h\u00e0n t\u1ea9y\/ passivate.<br \/>\n  &#8211; Thi\u1ebft k\u1ebf: tr\u00e1nh khe \u0111\u1ecdng n\u01b0\u1edbc; kho\u1ea3ng tr\u1ee5 1.0\u20131.2 m; t\u1ea3i line 1.0 kN\/m.<br \/>\n  &#8211; Ng\u00e2n s\u00e1ch: cao ban \u0111\u1ea7u nh\u01b0ng \u0111\u00e1ng gi\u00e1 v\u1ec1 \u0111\u1ed9 b\u1ec1n v\u00e0 an to\u00e0n.<\/p>\n<h2 id=\"toc-6-quy-trinh-7-buoc-ra-quyet-dinh-va-dat-hang\">Quy tr\u00ecnh 7 b\u01b0\u1edbc ra quy\u1ebft \u0111\u1ecbnh v\u00e0 \u0111\u1eb7t h\u00e0ng<\/h2>\n<p>1) X\u00e1c \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng: trong nh\u00e0\/ngo\u00e0i tr\u1eddi, kho\u1ea3ng c\u00e1ch t\u1edbi bi\u1ec3n, c\u00f3 h\u1ed3 b\u01a1i\/h\u00f3a ch\u1ea5t?<br \/>\n2) Ch\u1ecdn m\u00e1c inox: 201 (n\u1ed9i th\u1ea5t kh\u00f4) \/ 304 (\u0111a d\u1ee5ng) \/ 316 (bi\u1ec3n, h\u1ed3 b\u01a1i) \/ 2205 (r\u1ea5t kh\u1eafc nghi\u1ec7t).<br \/>\n3) Quy\u1ebft \u0111\u1ecbnh b\u1ec1 m\u1eb7t: HL\/No.4 (kinh t\u1ebf) hay 8K\/electropolish (ch\u1ed1ng \u1ed1 tr\u00e0 t\u1ed1t).<br \/>\n4) Ch\u1ed1t k\u00edch th\u01b0\u1edbc \u2013 t\u1ea3i: chi\u1ec1u cao, kho\u1ea3ng c\u00e1ch tr\u1ee5, \u00d8 v\u00e0 \u0111\u1ed9 d\u00e0y \u1ed1ng theo t\u1ea3i d\u1ef1 \u00e1n.<br \/>\n5) Ch\u1ecdn ph\u01b0\u01a1ng \u00e1n l\u1eafp: h\u00e0n hay l\u1eafp gh\u00e9p; lo\u1ea1i \u0111\u1ebf, bulong, gio\u0103ng c\u00e1ch \u0111i\u1ec7n.<br \/>\n6) Y\u00eau c\u1ea7u x\u1eed l\u00fd sau gia c\u00f4ng: t\u1ea9y m\u1ed1i h\u00e0n + passivation (ASTM A380\/A967); n\u1ebfu ven bi\u1ec3n, \u01b0u ti\u00ean electropolish.<br \/>\n7) L\u1eadp k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec: t\u1ea7n su\u1ea5t v\u1ec7 sinh, ki\u1ec3m tra si\u1ebft bulong, thay gio\u0103ng.<\/p>\n<p>Th\u00f4ng tin n\u00ean ghi r\u00f5 trong \u0111\u01a1n \u0111\u1eb7t h\u00e0ng:<br \/>\n&#8211; M\u00e1c inox v\u00e0 ti\u00eau chu\u1ea9n (VD: 316L, ASTM A554; t\u1ea5m A240); k\u00edch th\u01b0\u1edbc \u1ed1ng\/t\u1ea5m; b\u1ec1 m\u1eb7t (HL\/8K, Ra n\u1ebfu c\u00f3).<br \/>\n&#8211; Y\u00eau c\u1ea7u x\u1eed l\u00fd b\u1ec1 m\u1eb7t (passivation\/electropolish), quy c\u00e1ch m\u1ed1i h\u00e0n, ph\u1ee5 ki\u1ec7n A2\/A4.<br \/>\n&#8211; B\u1ea3n v\u1ebd thi c\u00f4ng: cao \u0111\u1ed9 tay v\u1ecbn, kho\u1ea3ng tr\u1ee5, chi ti\u1ebft \u0111\u1ebf\/bulong, khe h\u1edf an to\u00e0n.<br \/>\n&#8211; Y\u00eau c\u1ea7u nghi\u1ec7m thu: ki\u1ec3m tra b\u1ec1 m\u1eb7t, th\u1eb3ng \u2013 ph\u1eb3ng, t\u1ea3i th\u1eed (n\u1ebfu c\u00f3).<\/p>\n<h2 id=\"toc-7-bao-tri-va-van-hanh\">B\u1ea3o tr\u00ec v\u00e0 v\u1eadn h\u00e0nh<\/h2>\n<p>&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch v\u00e0 ch\u1ea5t t\u1ea9y trung t\u00ednh; r\u1eeda x\u1ea3 sau khi bi\u1ec3n \u0111\u1ed9ng ho\u1eb7c sau phun s\u01b0\u01a1ng mu\u1ed1i \u0111\u1eadm \u0111\u1eb7c.<br \/>\n&#8211; Kh\u00f4ng d\u00f9ng b\u00e0n ch\u1ea3i th\u00e9p carbon; d\u00f9ng pad nylon m\u1ecbn theo h\u01b0\u1edbng s\u1ecdc HL.<br \/>\n&#8211; X\u1eed l\u00fd \u1ed1 tr\u00e0 nh\u1eb9 b\u1eb1ng dung d\u1ecbch t\u1ea9y chuy\u00ean d\u1ee5ng inox kh\u00f4ng ch\u1ee9a clorua, r\u1eeda s\u1ea1ch k\u1ef9 v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a l\u1ea1i n\u1ebfu c\u1ea7n.<br \/>\n&#8211; Ki\u1ec3m tra \u1ed1c\/bulong 6\u201312 th\u00e1ng; thay gio\u0103ng n\u1ebfu l\u00e3o h\u00f3a; \u0111\u1ea3m b\u1ea3o tho\u00e1t n\u01b0\u1edbc t\u1ea1i ch\u00e2n tr\u1ee5.<\/p>\n<h2 id=\"toc-8-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n<p>&#8211; Nickel Institute \u2013 Stainless Steel Selection and Corrosion: https:\/\/nickelinstitute.org<br \/>\n&#8211; Australian Stainless Steel Development Association (ASSDA) \u2013 Technical FAQs &#038; Tea Staining: https:\/\/www.assda.asn.au<br \/>\n&#8211; Outokumpu Stainless Steel Datasheets (304\/316\/2205): https:\/\/www.outokumpu.com<br \/>\n&#8211; ASTM A240, A312, A554, A380, A967: https:\/\/www.astm.org<br \/>\n&#8211; BS 6180:2011 \u2013 Barriers in and about buildings; EN 1991-1-1; IBC\/ASCE 7 (t\u1ea3i tham kh\u1ea3o).<\/p>\n<h2 id=\"toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Trong nh\u00e0 kh\u00f4: 304 (ho\u1eb7c 201 cho n\u1ed9i th\u1ea5t kinh t\u1ebf) v\u1edbi HL m\u1ecbn l\u00e0 t\u1ed1i \u01b0u.<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi n\u1ed9i \u0111\u00f4: 304\/304L, ho\u00e0n thi\u1ec7n m\u1ecbn v\u00e0 b\u1ea3o tr\u00ec chu\u1ea9n.<br \/>\n&#8211; Ven bi\u1ec3n\/h\u1ed3 b\u01a1i: 316\/316L, \u01b0u ti\u00ean g\u01b0\u01a1ng 8K\/electropolish; n\u01a1i r\u1ea5t kh\u1eafc nghi\u1ec7t c\u00e2n nh\u1eafc 2205.<br \/>\n&#8211; T\u1eadp trung v\u00e0o thi\u1ebft k\u1ebf ch\u1ed1ng khe, tho\u00e1t n\u01b0\u1edbc, \u0111\u00fang ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u \u2013 h\u00e0n \u2013 passivation, v\u00e0 k\u1ebf ho\u1ea1ch v\u1ec7 sinh th\u1ef1c t\u1ebf.<br \/>\nL\u00e0m \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u gi\u00fap lan can inox v\u1eeba \u0111\u1eb9p, v\u1eeba b\u1ec1n, v\u00e0 t\u1ed1i \u01b0u ng\u00e2n s\u00e1ch v\u00f2ng \u0111\u1eddi.<\/p>\n<p>C\u1ea7n h\u1ed7 tr\u1ee3 ch\u1ed1t m\u00e1c inox, b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y v\u00e0 b\u00e1o gi\u00e1 theo b\u1ea3n v\u1ebd? Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u00e0 gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn ch\u1ecdn inox l\u00e0m lan can theo m\u00f4i tr\u01b0\u1eddng (201\/304\/316), ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t, \u0111\u1ed9 d\u00e0y, t\u1ea3i tr\u1ecdng v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi \u0111\u1ec3 v\u1eeba \u0111\u1eb9p, b\u1ec1n, ti\u1ebft ki\u1ec7m.<\/p>\n","protected":false},"author":7,"featured_media":1014,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1613","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\/1613","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=1613"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1613\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1014"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1613"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1613"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1613"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}