{"id":1633,"date":"2026-02-04T00:36:06","date_gmt":"2026-02-03T17:36:06","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/phan-tich-chi-phi-dau-tu-bao-tri-inox-so-voi-thep-ma-kem-nhom\/"},"modified":"2026-02-04T00:36:06","modified_gmt":"2026-02-03T17:36:06","slug":"phan-tich-chi-phi-dau-tu-bao-tri-inox-so-voi-thep-ma-kem-nhom","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/phan-tich-chi-phi-dau-tu-bao-tri-inox-so-voi-thep-ma-kem-nhom\/","title":{"rendered":"Ph\u00e2n t\u00edch chi ph\u00ed \u0111\u1ea7u t\u01b0 &#038; b\u1ea3o tr\u00ec: Inox so v\u1edbi th\u00e9p, m\u1ea1 k\u1ebdm, nh\u00f4m"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-phuong-phap-dung-chi-phi-vong-doi-lcc-thay-vi-gia-\">Ph\u01b0\u01a1ng ph\u00e1p: d\u00f9ng chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC) thay v\u00ec gi\u00e1 mua<\/a><\/li>\n<li><a href=\"#toc-1-chi-phi-ban-dau-capex-inox-dat-hon-nhung-bo-qua-lo\">Chi ph\u00ed ban \u0111\u1ea7u (CAPEX): inox \u0111\u1eaft h\u01a1n, nh\u01b0ng b\u1ecf qua l\u1edbp ph\u1ee7<\/a><\/li>\n<li><a href=\"#toc-2-chi-phi-bao-tri-opex-noi-inox-tao-loi-the\">Chi ph\u00ed b\u1ea3o tr\u00ec (OPEX): n\u01a1i inox t\u1ea1o l\u1ee3i th\u1ebf<\/a><\/li>\n<li><a href=\"#toc-3-vi-du-tinh-lcc-20-nam-npv-r-10\">V\u00ed d\u1ee5 t\u00ednh LCC 20 n\u0103m (NPV, r = 10%)<\/a><\/li>\n<li><a href=\"#toc-4-cac-chi-phi-an-thuong-bi-bo-qua\">C\u00e1c chi ph\u00ed \u1ea9n th\u01b0\u1eddng b\u1ecb b\u1ecf qua<\/a><\/li>\n<li><a href=\"#toc-5-khi-nao-chon-vat-lieu-nao\">Khi n\u00e0o ch\u1ecdn v\u1eadt li\u1ec7u n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-6-checklist-de-chot-phuong-an-va-bao-gia-chuan\">Checklist \u0111\u1ec3 ch\u1ed1t ph\u01b0\u01a1ng \u00e1n v\u00e0 b\u00e1o gi\u00e1 chu\u1ea9n<\/a><\/li>\n<li><a href=\"#toc-7-nguon-tham-khao-tieu-bieu\">Ngu\u1ed3n tham kh\u1ea3o ti\u00eau bi\u1ec3u<\/a><\/li>\n<li><a href=\"#toc-8-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong c\u00e1c quy\u1ebft \u0111\u1ecbnh v\u1eadt li\u1ec7u, chi ph\u00ed ban \u0111\u1ea7u th\u1ea5p kh\u00f4ng \u0111\u1ed3ng ngh\u0129a chi ph\u00ed s\u1edf h\u1eefu th\u1ea5p. B\u00e0i vi\u1ebft n\u00e0y \u0111i th\u1eb3ng v\u00e0o tr\u1ecdng t\u00e2m: ph\u00e2n t\u00edch chi ph\u00ed \u0111\u1ea7u t\u01b0 (CAPEX) v\u00e0 chi ph\u00ed b\u1ea3o tr\u00ec (OPEX) c\u1ee7a inox so v\u1edbi th\u00e9p carbon s\u01a1n, th\u00e9p m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng v\u00e0 nh\u00f4m, theo ph\u01b0\u01a1ng ph\u00e1p chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC). \u0110\u00e2y l\u00e0 m\u1ed9t m\u1ea3nh gh\u00e9p quan tr\u1ecdng trong b\u1ee9c tranh so s\u00e1nh to\u00e0n di\u1ec7n inox v\u1edbi c\u00e1c kim lo\u1ea1i kh\u00e1c, nh\u01b0ng \u0111\u1ee7 \u0111\u1ed9c l\u1eadp \u0111\u1ec3 b\u1ea1n ra quy\u1ebft \u0111\u1ecbnh cho d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<h2 id=\"toc-0-phuong-phap-dung-chi-phi-vong-doi-lcc-thay-vi-gia-\">Ph\u01b0\u01a1ng ph\u00e1p: d\u00f9ng chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC) thay v\u00ec gi\u00e1 mua<\/h2>\n<p>LCC (Life Cycle Cost) = CAPEX + t\u1ed5ng chi ph\u00ed v\u1eadn h\u00e0nh\/b\u1ea3o tr\u00ec chi\u1ebft kh\u1ea5u theo th\u1eddi gian + chi ph\u00ed r\u1ee7i ro + x\u1eed l\u00fd cu\u1ed1i v\u00f2ng \u0111\u1eddi.<\/p>\n<p>&#8211; C\u00f4ng th\u1ee9c r\u00fat g\u1ecdn: LCC = CAPEX + \u03a3 OPEX_t \/ (1 + r)^t<br \/>\n&#8211; r: l\u00e3i su\u1ea5t chi\u1ebft kh\u1ea5u (th\u1ef1c t\u1ebf t\u1ea1i VN 8\u201312% t\u00f9y doanh nghi\u1ec7p)<br \/>\n&#8211; T: tu\u1ed5i th\u1ecd thi\u1ebft k\u1ebf (10\u201325 n\u0103m ph\u1ed5 bi\u1ebfn cho k\u1ebft c\u1ea5u c\u00f4ng nghi\u1ec7p)<\/p>\n<p>Tham chi\u1ebfu m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n:<br \/>\n&#8211; ISO 12944\/TCVN 8789: C2 (nh\u1eb9) \u0111\u1ebfn C5 (r\u1ea5t n\u1eb7ng); C4\u2013C5 l\u00e0 \u0111i\u1ec3n h\u00ecnh ven bi\u1ec3n\/kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi \u1ea9m, Vi\u1ec7t Nam nhi\u1ec1u khu v\u1ef1c r\u01a1i v\u00e0o C3\u2013C5.<br \/>\n&#8211; ISO 14713-1: h\u01b0\u1edbng d\u1eabn tu\u1ed5i th\u1ecd m\u1ea1 k\u1ebdm theo chi\u1ec1u d\u00e0y l\u1edbp k\u1ebdm v\u00e0 m\u00f4i tr\u01b0\u1eddng.<\/p>\n<p>Ch\u1ecdn m\u00e1c inox theo m\u00f4i tr\u01b0\u1eddng:<br \/>\n&#8211; C2\u2013C3: 304 \u0111\u1ee7; 201 ch\u1ec9 cho n\u1ed9i th\u1ea5t kh\u00f4, kh\u00f4ng h\u00f3a ch\u1ea5t.<br \/>\n&#8211; C4: 304 c\u00f3 th\u1ec3 d\u00f9ng v\u1edbi b\u1ea3o tr\u00ec ph\u00f9 h\u1ee3p; 316 khuy\u1ebfn ngh\u1ecb cho ngo\u00e0i tr\u1eddi ven bi\u1ec3n.<br \/>\n&#8211; C5-M (bi\u1ec3n n\u1eb7ng): 316\/316L, duplex 2205 n\u1ebfu t\u1ea3i tr\u1ecdng cao\/Cl- r\u1ea5t cao.<\/p>\n<p>Ngu\u1ed3n ph\u01b0\u01a1ng ph\u00e1p v\u00e0 d\u1eef li\u1ec7u: ISSF\/Nickel Institute v\u1ec1 LCC; ISO 12944, ISO 14713; NACE\/AMPP IMPACT Report v\u1ec1 chi ph\u00ed \u0103n m\u00f2n.<\/p>\n<h2 id=\"toc-1-chi-phi-ban-dau-capex-inox-dat-hon-nhung-bo-qua-lo\">Chi ph\u00ed ban \u0111\u1ea7u (CAPEX): inox \u0111\u1eaft h\u01a1n, nh\u01b0ng b\u1ecf qua l\u1edbp ph\u1ee7<\/h2>\n<h3>V\u1eadt li\u1ec7u &#038; t\u1ef7 l\u1ec7 gi\u00e1 t\u01b0\u01a1ng \u0111\u1ed1i<\/h3>\n<p>&#8211; Th\u00e9p carbon (SS400\/S235) s\u01a1n: c\u01a1 s\u1edf so s\u00e1nh (Index = 1.00)<br \/>\n&#8211; Th\u00e9p m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng (HDG, ~70\u2013100 \u00b5m): 1.1\u20131.3 l\u1ea7n th\u00e9p s\u01a1n (do chi ph\u00ed m\u1ea1)<br \/>\n&#8211; Nh\u00f4m 6061-T6 s\u01a1n t\u0129nh \u0111i\u1ec7n\/anod: 1.4\u20131.8 l\u1ea7n (v\u1eadt li\u1ec7u \u0111\u1eaft h\u01a1n nh\u01b0ng nh\u1eb9 h\u01a1n ~1\/3 th\u00e9p)<br \/>\n&#8211; Inox 304: 1.4\u20131.7 l\u1ea7n (kh\u00f4ng c\u1ea7n s\u01a1n)<br \/>\n&#8211; Inox 316: 1.7\u20132.1 l\u1ea7n (h\u1ee3p kim Mo ch\u1ed1ng r\u1ed7 pitting)<br \/>\nL\u01b0u \u00fd: Tr\u00ean s\u1ea3n ph\u1ea9m ho\u00e0n thi\u1ec7n, ch\u00eanh l\u1ec7ch inox so v\u1edbi th\u00e9p s\u01a1n th\u01b0\u1eddng th\u1ea5p h\u01a1n so v\u1edbi so gi\u00e1\/kg, v\u00ec inox b\u1ecf qua c\u00e1c c\u00f4ng \u0111o\u1ea1n s\u01a1n\/m\u1ea1 v\u00e0 c\u00e1c l\u1ea7n phun s\u01a1n t\u1ea1i x\u01b0\u1edfng.<\/p>\n<h3>Gia c\u00f4ng &#038; l\u1eafp \u0111\u1eb7t<\/h3>\n<p>&#8211; Inox: y\u00eau c\u1ea7u m\u0169i khoan, \u0111\u00e1 m\u00e0i, d\u00e2y h\u00e0n chuy\u00ean d\u1ee5ng; t\u1ed1c \u0111\u1ed9 gia c\u00f4ng ch\u1eadm h\u01a1n th\u00e9p carbon. B\u00f9 l\u1ea1i kh\u00f4ng t\u1ed1n phun bi\/phun c\u00e1t, s\u01a1n l\u00f3t, s\u01a1n ph\u1ee7, th\u1eddi gian ch\u1edd kh\u00f4 v\u00e0 ki\u1ec3m tra \u0111\u1ed9 d\u00e0y s\u01a1n.<br \/>\n&#8211; Th\u00e9p s\u01a1n: th\u00eam chi ph\u00ed chu\u1ea9n b\u1ecb b\u1ec1 m\u1eb7t Sa 2.5, h\u1ec7 s\u01a1n (epoxy\/polyurethane), ki\u1ec3m tra \u0111\u1ed9 d\u00e0y\/\u0111\u1ed9 b\u00e1m, khu v\u1ef1c s\u01a1n s\u1ea1ch, an to\u00e0n lao \u0111\u1ed9ng.<br \/>\n&#8211; M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng: chi ph\u00ed v\u1eadn chuy\u1ec3n t\u1edbi b\u1ec3 m\u1ea1, tho\u00e1t l\u1ed7, ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng nhi\u1ec7t.<br \/>\n&#8211; Nh\u00f4m: d\u1ec5 gia c\u00f4ng, nh\u01b0ng th\u01b0\u1eddng c\u1ea7n s\u01a1n\/anod \u0111\u1ec3 b\u1ec1n m\u00e0u, ch\u00fa \u00fd \u0103n m\u00f2n Galvanic khi l\u1eafp bu l\u00f4ng th\u00e9p.<\/p>\n<p>K\u1ebft lu\u1eadn CAPEX: Inox cao h\u01a1n th\u00e9p s\u01a1n \u1edf \u201cgi\u00e1 mua\u201d, nh\u01b0ng t\u1ed5ng chi ph\u00ed l\u1eafp \u0111\u1eb7t nhi\u1ec1u khi ch\u1ec9 cao h\u01a1n 30\u201360% do kh\u00f4ng c\u1ea7n h\u1ec7 s\u01a1n.<\/p>\n<h2 id=\"toc-2-chi-phi-bao-tri-opex-noi-inox-tao-loi-the\">Chi ph\u00ed b\u1ea3o tr\u00ec (OPEX): n\u01a1i inox t\u1ea1o l\u1ee3i th\u1ebf<\/h2>\n<h3>Th\u00e9p carbon s\u01a1n<\/h3>\n<p>&#8211; Chu k\u1ef3 s\u01a1n l\u1ea1i ph\u1ee5 thu\u1ed9c ISO 12944 v\u00e0 h\u1ec7 s\u01a1n; m\u00f4i tr\u01b0\u1eddng C4 th\u01b0\u1eddng 5\u201310 n\u0103m cho \u201cth\u1eddi gian \u0111\u1ebfn b\u1ea3o tr\u00ec \u0111\u1ea7u ti\u00ean\u201d.<br \/>\n&#8211; M\u1ed7i l\u1ea7n s\u01a1n l\u1ea1i g\u1ed3m d\u1eebng thi\u1ebft b\u1ecb, gi\u00e0n gi\u00e1o, x\u1eed l\u00fd r\u1ec9, phun bi, s\u01a1n nhi\u1ec1u l\u1edbp, nghi\u1ec7m thu; chi ph\u00ed \u0111\u00e1ng k\u1ec3 (th\u01b0\u1eddng 40\u201380% CAPEX cho h\u1ea1ng m\u1ee5c).<br \/>\n&#8211; R\u1ee7i ro CUI (\u0103n m\u00f2n d\u01b0\u1edbi l\u1edbp c\u00e1ch nhi\u1ec7t) t\u1ea1i \u0111\u01b0\u1eddng \u1ed1ng\/thi\u1ebft b\u1ecb n\u00f3ng, kh\u00f3 ph\u00e1t hi\u1ec7n, chi ph\u00ed s\u1eeda l\u1edbn.<\/p>\n<h3>Th\u00e9p m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng (HDG)<\/h3>\n<p>&#8211; Tu\u1ed5i th\u1ecd \u0111\u1ebfn b\u1ea3o tr\u00ec ph\u1ee5 thu\u1ed9c chi\u1ec1u d\u00e0y k\u1ebdm v\u00e0 m\u00f4i tr\u01b0\u1eddng. \u1ede C4, 85 \u00b5m c\u00f3 th\u1ec3 \u0111\u1ea1t ~10\u201320 n\u0103m; \u1edf C5-M ven bi\u1ec3n n\u1eb7ng, c\u00f3 th\u1ec3 ch\u1ec9 5\u201310 n\u0103m ho\u1eb7c th\u1ea5p h\u01a1n cho v\u00f9ng b\u1eafn m\u00f9 mu\u1ed1i tr\u1ef1c ti\u1ebfp (theo ISO 14713-1).<br \/>\n&#8211; B\u1ea3o tr\u00ec g\u1ed3m s\u1eeda ch\u1eefa l\u1edbp k\u1ebdm h\u01b0 h\u1ea1i, s\u01a1n ph\u1ee7 b\u1ed5 sung (h\u1ec7 Duplex), lau r\u1eeda mu\u1ed1i.<\/p>\n<h3>Nh\u00f4m<\/h3>\n<p>&#8211; T\u1ef1 t\u1ea1o m\u00e0ng oxit b\u1ea3o v\u1ec7 nh\u01b0ng nh\u1ea1y c\u1ea3m r\u1ed7\/pitting trong m\u00f4i tr\u01b0\u1eddng clorua; th\u01b0\u1eddng c\u1ea7n s\u01a1n\/anod. B\u1ea3o tr\u00ec ch\u1ee7 y\u1ebfu l\u00e0 v\u1ec7 sinh, s\u01a1n l\u1ea1i theo chu k\u1ef3 8\u201312 n\u0103m.<\/p>\n<h3>Inox (201\/304\/316)<\/h3>\n<p>&#8211; Kh\u00f4ng c\u1ea7n s\u01a1n. B\u1ea3o tr\u00ec l\u00e0 v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 tr\u00e1nh b\u00e1m mu\u1ed1i\/b\u1ee5i; 304 c\u00f3 th\u1ec3 b\u1ecb \u201c\u1ed1 tr\u00e0\u201d (tea staining) ngo\u00e0i tr\u1eddi ven bi\u1ec3n n\u1ebfu kh\u00f4ng r\u1eeda; 316 kh\u00e1ng clorua t\u1ed1t h\u01a1n, gi\u1ea3m \u1ed1 v\u00e0 r\u1ed7.<br \/>\n&#8211; Chi ph\u00ed b\u1ea3o tr\u00ec th\u01b0\u1eddng l\u00e0 v\u1ec7 sinh 0.3\u20130.5% CAPEX\/n\u0103m; \u0111\u1ecbnh k\u1ef3 passivation\/\u0111\u00e1nh b\u00f3ng nh\u1eb9 10\u201315 n\u0103m\/l\u1ea7n trong m\u00f4i tr\u01b0\u1eddng kh\u1eaft khe.<\/p>\n<p>T\u00e0i li\u1ec7u tham kh\u1ea3o: ISO 12944; ISO 14713-1; Nickel Institute\/ISSF v\u1ec1 ch\u1ecdn m\u00e1c inox ngo\u00e0i tr\u1eddi; ASSDA v\u1ec1 tea staining.<\/p>\n<h2 id=\"toc-3-vi-du-tinh-lcc-20-nam-npv-r-10\">V\u00ed d\u1ee5 t\u00ednh LCC 20 n\u0103m (NPV, r = 10%)<\/h2>\n<p>Gi\u1ea3 \u0111\u1ecbnh h\u1ea1ng m\u1ee5c khung s\u00e0n\/lan can ngo\u00e0i tr\u1eddi (kh\u1ed1i l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng), so s\u00e1nh theo ch\u1ec9 s\u1ed1 chi ph\u00ed. Con s\u1ed1 mang t\u00ednh tham kh\u1ea3o \u0111\u1ec3 minh h\u1ecda ph\u01b0\u01a1ng ph\u00e1p; vui l\u00f2ng l\u1ea5y b\u00e1o gi\u00e1 th\u1ef1c t\u1ebf tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh.<\/p>\n<h3>K\u1ecbch b\u1ea3n A \u2013 M\u00f4i tr\u01b0\u1eddng C4 (ven bi\u1ec3n nh\u1eb9\/\u0111\u00f4 th\u1ecb \u1ea9m)<\/h3>\n<p>&#8211; CAPEX (ch\u1ec9 s\u1ed1): Th\u00e9p s\u01a1n = 1,000; M\u1ea1 k\u1ebdm = 1,200; Nh\u00f4m = 1,600; Inox 304 = 1,500; Inox 316 = 1,800<br \/>\n&#8211; OPEX h\u1eb1ng n\u0103m: Th\u00e9p s\u01a1n 2% CAPEX; M\u1ea1 k\u1ebdm 1%; Nh\u00f4m 1%; 304: 0.5%; 316: 0.3%<br \/>\n&#8211; B\u1ea3o tr\u00ec l\u1edbn:<br \/>\n  &#8211; Th\u00e9p s\u01a1n: s\u01a1n l\u1ea1i n\u0103m 5 v\u00e0 12, m\u1ed7i l\u1ea7n 60% CAPEX<br \/>\n  &#8211; M\u1ea1 k\u1ebdm: b\u1ea3o tr\u00ec n\u0103m 12, 30% CAPEX<br \/>\n  &#8211; Nh\u00f4m: s\u01a1n l\u1ea1i n\u0103m 10, 40% CAPEX<br \/>\n  &#8211; 304: passivation n\u0103m 10, 5% CAPEX<br \/>\n  &#8211; 316: \u0111\u00e1nh b\u00f3ng nh\u1eb9 n\u0103m 15, 3% CAPEX<br \/>\n&#8211; K\u1ebft qu\u1ea3 NPV LCC (ch\u1ec9 s\u1ed1):<br \/>\n  &#8211; M\u1ea1 k\u1ebdm: ~1,417 (th\u1ea5p nh\u1ea5t)<br \/>\n  &#8211; Inox 304: ~1,593<br \/>\n  &#8211; Th\u00e9p s\u01a1n: ~1,734<br \/>\n  &#8211; Inox 316: ~1,859<br \/>\n  &#8211; Nh\u00f4m: ~1,983<br \/>\nK\u1ebft lu\u1eadn C4: M\u1ea1 k\u1ebdm c\u00f3 LCC th\u1ea5p nh\u1ea5t; Inox 304 b\u00e1m s\u00e1t, v\u01b0\u1ee3t th\u00e9p s\u01a1n nh\u1edd OPEX th\u1ea5p.<\/p>\n<h3>K\u1ecbch b\u1ea3n B \u2013 M\u00f4i tr\u01b0\u1eddng C5-M (ven bi\u1ec3n n\u1eb7ng\/\u1ea9m m\u1eb7n)<\/h3>\n<p>&#8211; CAPEX nh\u01b0 tr\u00ean<br \/>\n&#8211; OPEX h\u1eb1ng n\u0103m:<br \/>\n  &#8211; Th\u00e9p s\u01a1n: 3% CAPEX; M\u1ea1 k\u1ebdm: 1.5%; 304: 1% (v\u1eabn r\u1ee7i ro r\u1ed7); 316: 0.5%<br \/>\n&#8211; B\u1ea3o tr\u00ec l\u1edbn:<br \/>\n  &#8211; Th\u00e9p s\u01a1n: s\u01a1n l\u1ea1i n\u0103m 3, 8, 13, 18, m\u1ed7i l\u1ea7n 70% CAPEX<br \/>\n  &#8211; M\u1ea1 k\u1ebdm: b\u1ea3o tr\u00ec n\u0103m 5, 10, 15, m\u1ed7i l\u1ea7n 40% CAPEX (ph\u1ea3n \u00e1nh tu\u1ed5i th\u1ecd ng\u1eafn trong C5)<br \/>\n  &#8211; 304: passivation n\u0103m 5 &#038; 12 (5% CAPEX m\u1ed7i l\u1ea7n) v\u00e0 thay 10% chi ti\u1ebft n\u0103m 6 (\u224815% CAPEX) do r\u1ed7 c\u1ee5c b\u1ed9<br \/>\n  &#8211; 316: \u0111\u00e1nh b\u00f3ng nh\u1eb9 n\u0103m 10 (3% CAPEX)<br \/>\n&#8211; K\u1ebft qu\u1ea3 NPV LCC (ch\u1ec9 s\u1ed1):<br \/>\n  &#8211; Inox 316: ~1,897 (th\u1ea5p nh\u1ea5t trong c\u00e1c ph\u01b0\u01a1ng \u00e1n b\u1ec1n)<br \/>\n  &#8211; M\u1ea1 k\u1ebdm: ~1,951<br \/>\n  &#8211; Inox 304: ~1,825 v\u1ec1 s\u1ed1 h\u1ecdc nh\u01b0ng r\u1ee7i ro h\u01b0 h\u1ecfng\/\u1ea3o t\u01b0\u1edfng chi ph\u00ed do r\u1ed7; th\u1ef1c t\u1ebf th\u01b0\u1eddng k\u00e9m tin c\u1eady, d\u1ec5 ph\u00e1t sinh chi ph\u00ed thay m\u1edbi<br \/>\n  &#8211; Th\u00e9p s\u01a1n: ~2,440 (cao nh\u1ea5t)<br \/>\nDi\u1ec5n gi\u1ea3i C5: V\u1edbi clorua cao, chu k\u1ef3 s\u01a1n\/m\u1ea1 d\u00e0y \u0111\u1eb7c l\u00e0m CAPEX th\u1ea5p ban \u0111\u1ea7u tr\u1edf n\u00ean \u0111\u1eaft \u0111\u1ecf. Inox 316 th\u01b0\u1eddng t\u1ed1i \u01b0u v\u1ec1 v\u00f2ng \u0111\u1eddi v\u00e0 r\u1ee7i ro.<\/p>\n<h2 id=\"toc-4-cac-chi-phi-an-thuong-bi-bo-qua\">C\u00e1c chi ph\u00ed \u1ea9n th\u01b0\u1eddng b\u1ecb b\u1ecf qua<\/h2>\n<p>&#8211; D\u1eebng m\u00e1y\/gi\u00e0n gi\u00e1o\/gi\u1ea5y ph\u00e9p l\u00e0m vi\u1ec7c n\u00f3ng khi s\u01a1n l\u1ea1i<br \/>\n&#8211; An to\u00e0n: r\u1ee7i ro r\u01a1i v\u1eadt, kh\u00ed \u0111\u1ed9c VOC khi s\u01a1n; ch\u00e1y n\u1ed5 khi l\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t<br \/>\n&#8211; Ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m: m\u1ea1t r\u1ec9 s\u00e9t g\u00e2y nhi\u1ec5m b\u1ea9n (F&#038;B, d\u01b0\u1ee3c, n\u01b0\u1edbc s\u1ea1ch)<br \/>\n&#8211; R\u1ee7i ro CUI cho th\u00e9p s\u01a1n\/m\u1ea1 d\u01b0\u1edbi l\u1edbp c\u00e1ch nhi\u1ec7t<br \/>\n&#8211; \u0102n m\u00f2n \u0111i\u1ec7n h\u00f3a do ti\u1ebfp x\u00fac kim lo\u1ea1i kh\u00e1c (nh\u00f4m\/galvanized v\u1edbi inox\/th\u00e9p)<br \/>\n&#8211; Th\u1ea9m m\u1ef9: \u1ed1, phai m\u00e0u; inox gi\u1eef b\u1ec1 m\u1eb7t t\u1ed1t h\u01a1n n\u1ebfu v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3<br \/>\n&#8211; Gi\u00e1 tr\u1ecb thu h\u1ed3i\/ph\u1ebf li\u1ec7u: inox c\u00f3 gi\u00e1 thu h\u1ed3i cao, d\u1ec5 t\u00e1i ch\u1ebf<\/p>\n<h2 id=\"toc-5-khi-nao-chon-vat-lieu-nao\">Khi n\u00e0o ch\u1ecdn v\u1eadt li\u1ec7u n\u00e0o?<\/h2>\n<p>&#8211; Inox 316: ven bi\u1ec3n, x\u1eed l\u00fd n\u01b0\u1edbc, F&#038;B, h\u00f3a ch\u1ea5t nh\u1eb9\u2013trung b\u00ecnh, y\u00eau c\u1ea7u v\u1ec7 sinh cao, tu\u1ed5i th\u1ecd \u226520 n\u0103m<br \/>\n&#8211; Inox 304: \u0111\u00f4 th\u1ecb n\u1ed9i \u0111\u1ecba C2\u2013C3, trong nh\u00e0, ki\u1ebfn tr\u00fac ngo\u1ea1i th\u1ea5t \u00edt clorua, y\u00eau c\u1ea7u kh\u00f4ng s\u01a1n<br \/>\n&#8211; Inox 201\/430: ch\u1ec9 n\u1ed9i th\u1ea5t kh\u00f4\/\u0111\u1ed3 gia d\u1ee5ng; kh\u00f4ng khuy\u1ebfn ngh\u1ecb ngo\u00e0i tr\u1eddi \u1ea9m<br \/>\n&#8211; Th\u00e9p m\u1ea1 k\u1ebdm: k\u1ebft c\u1ea5u ngo\u00e0i tr\u1eddi C3\u2013C4, t\u1ea3i c\u01a1 h\u1ecdc cao, y\u00eau c\u1ea7u tu\u1ed5i th\u1ecd trung b\u00ecnh v\u1edbi chi ph\u00ed th\u1ea5p<br \/>\n&#8211; Th\u00e9p s\u01a1n: trong nh\u00e0 kh\u00f4, c\u00f4ng tr\u00ecnh t\u1ea1m, tu\u1ed5i th\u1ecd ng\u1eafn, d\u1ec5 ti\u1ebfp c\u1eadn s\u01a1n l\u1ea1i<br \/>\n&#8211; Nh\u00f4m: c\u1ea7n nh\u1eb9, ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i, \u00edt va \u0111\u1eadp, ch\u00fa \u00fd c\u00e1ch ly \u0111i\u1ec7n h\u00f3a v\u00e0 l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t<\/p>\n<h2 id=\"toc-6-checklist-de-chot-phuong-an-va-bao-gia-chuan\">Checklist \u0111\u1ec3 ch\u1ed1t ph\u01b0\u01a1ng \u00e1n v\u00e0 b\u00e1o gi\u00e1 chu\u1ea9n<\/h2>\n<p>&#8211; M\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n (C2\u2013C5), kho\u1ea3ng c\u00e1ch t\u1edbi bi\u1ec3n\/\u0111\u01b0\u1eddng mu\u1ed1i, SO2\/Cl-<br \/>\n&#8211; Tu\u1ed5i th\u1ecd m\u1ee5c ti\u00eau (10\/15\/20\/25 n\u0103m) v\u00e0 m\u1ee9c ch\u1ea5p nh\u1eadn b\u1ea3o tr\u00ec<br \/>\n&#8211; Y\u00eau c\u1ea7u v\u1ec7 sinh\/th\u1ef1c ph\u1ea9m, th\u1ea9m m\u1ef9, an to\u00e0n ch\u00e1y n\u1ed5<br \/>\n&#8211; T\u1ea3i tr\u1ecdng, chi\u1ec1u d\u00e0y\/t\u1ed1i \u01b0u k\u1ebft c\u1ea5u, m\u1ed1i h\u00e0n\/li\u00ean k\u1ebft<br \/>\n&#8211; Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng: ISO 12944\/TCVN 8789 (s\u01a1n), ISO 14713 (m\u1ea1 k\u1ebdm), ASTM\/EN\/TCVN cho inox<br \/>\n&#8211; Thi\u1ebft k\u1ebf ch\u1ed1ng b\u1eaby khe, tho\u00e1t n\u01b0\u1edbc, tr\u00e1nh k\u1eb9t mu\u1ed1i, c\u00e1ch ly \u0111i\u1ec7n h\u00f3a<br \/>\n&#8211; L\u1ecbch v\u1ec7 sinh kh\u1ea3 thi, chi ph\u00ed gi\u00e0n gi\u00e1o, d\u1eebng thi\u1ebft b\u1ecb<br \/>\n&#8211; Thu th\u1eadp b\u00e1o gi\u00e1 v\u1eadt li\u1ec7u, gia c\u00f4ng, thi c\u00f4ng, b\u1ea3o tr\u00ec \u0111\u1ec3 t\u00ednh LCC<\/p>\n<p>M\u1eb9o t\u1ed1i \u01b0u:<br \/>\n&#8211; D\u00f9ng 316 cho khu v\u1ef1c h\u1ee9ng s\u01b0\u01a1ng mu\u1ed1i, 304 cho v\u1ecb tr\u00ed khu\u1ea5t\/kh\u00f4; k\u1ebft h\u1ee3p h\u1ee3p l\u00fd<br \/>\n&#8211; Ch\u1ecdn b\u1ec1 m\u1eb7t inox 2B\/No.4\/No.320 ph\u00f9 h\u1ee3p; \u0111\u00e1nh b\u00f3ng qu\u00e1 m\u1ecbn ch\u01b0a ch\u1eafc b\u1ec1n h\u01a1n trong m\u00f4i tr\u01b0\u1eddng bi\u1ec3n n\u1ebfu kh\u00f4ng v\u1ec7 sinh<br \/>\n&#8211; Duplex 2205 khi c\u1ea7n c\u01b0\u1eddng \u0111\u1ed9 cao v\u00e0 ch\u1ed1ng r\u1ed7 v\u01b0\u1ee3t tr\u1ed9i<br \/>\n&#8211; H\u1ea1n ch\u1ebf h\u00e0n d\u01b0 th\u1eeba; d\u00f9ng ho\u00e0n thi\u1ec7n c\u01a1 h\u1ecdc \u0111\u1ec3 gi\u1ea3m b\u1ec1 m\u1eb7t gi\u1eef mu\u1ed1i<\/p>\n<h2 id=\"toc-7-nguon-tham-khao-tieu-bieu\">Ngu\u1ed3n tham kh\u1ea3o ti\u00eau bi\u1ec3u<\/h2>\n<p>&#8211; ISO 12944 (S\u01a1n b\u1ea3o v\u1ec7 k\u1ebft c\u1ea5u th\u00e9p \u2013 Ph\u00e2n lo\u1ea1i m\u00f4i tr\u01b0\u1eddng\/\u0111\u1ed9 b\u1ec1n h\u1ec7 s\u01a1n)<br \/>\n&#8211; TCVN 8789:2011 (S\u01a1n b\u1ea3o v\u1ec7 k\u1ebft c\u1ea5u th\u00e9p \u2013 Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt &#038; ph\u01b0\u01a1ng ph\u00e1p th\u1eed)<br \/>\n&#8211; ISO 14713-1 (K\u1ebdm v\u00e0 h\u1ee3p kim k\u1ebdm \u2013 H\u01b0\u1edbng d\u1eabn b\u1ea3o v\u1ec7 kh\u1ecfi \u0103n m\u00f2n)<br \/>\n&#8211; ISSF: Life Cycle Costing and Stainless Steel; Nickel Institute \u2013 Guidelines for stainless steel selection in architecture and marine<br \/>\n&#8211; NACE\/AMPP IMPACT Report 2016 \u2013 Chi ph\u00ed \u0103n m\u00f2n to\u00e0n c\u1ea7u (~3\u20134% GDP)<\/p>\n<h2 id=\"toc-8-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; N\u1ebfu ch\u1ec9 nh\u00ecn CAPEX, th\u00e9p s\u01a1n\/m\u1ea1 k\u1ebdm c\u00f3 l\u1ee3i th\u1ebf. Nh\u01b0ng x\u00e9t LCC 20 n\u0103m, inox th\u01b0\u1eddng r\u1ebb h\u01a1n t\u1ed5ng th\u1ec3 trong m\u00f4i tr\u01b0\u1eddng C4\u2013C5 do OPEX r\u1ea5t th\u1ea5p v\u00e0 r\u1ee7i ro b\u1ea3o tr\u00ec nh\u1ecf.<br \/>\n&#8211; C4: m\u1ea1 k\u1ebdm c\u00f3 LCC th\u1ea5p nh\u1ea5t; inox 304 b\u00e1m s\u00e1t v\u00e0 an to\u00e0n h\u01a1n v\u1ec1 v\u1ec7 sinh\/th\u1ea9m m\u1ef9.<br \/>\n&#8211; C5: inox 316 th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u v\u1ec1 v\u00f2ng \u0111\u1eddi, \u1ed5n \u0111\u1ecbnh chi ph\u00ed v\u00e0 \u00edt d\u1eebng m\u00e1y. M\u1ea1 k\u1ebdm\/\u0111\u1eb7c bi\u1ec7t h\u1ec7 Duplex (m\u1ea1 + s\u01a1n) c\u00f3 th\u1ec3 c\u1ea1nh tranh nh\u01b0ng chi ph\u00ed b\u1ea3o tr\u00ec t\u0103ng nhanh.<br \/>\n&#8211; Quy\u1ebft \u0111\u1ecbnh \u0111\u00fang d\u1ef1a tr\u00ean LCC, m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n v\u00e0 kh\u1ea3 n\u0103ng d\u1eebng m\u00e1y; inox th\u1eafng \u1edf n\u01a1i b\u1ea3o tr\u00ec kh\u00f3, y\u00eau c\u1ea7u v\u1ec7 sinh cao ho\u1eb7c chi ph\u00ed d\u1eebng m\u00e1y l\u1edbn.<\/p>\n<p>C\u1ea7n b\u1ea3ng t\u00ednh LCC ri\u00eang cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n m\u00e1c inox, b\u1ec1 m\u1eb7t v\u00e0 ph\u01b0\u01a1ng \u00e1n t\u1ed1i \u01b0u chi ph\u00ed. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh CAPEX\/OPEX c\u1ee7a inox 304\/316 v\u1edbi th\u00e9p s\u01a1n, m\u1ea1 k\u1ebdm, nh\u00f4m theo m\u00f4 h\u00ecnh LCC 20 n\u0103m. K\u1ebft lu\u1eadn theo m\u00f4i tr\u01b0\u1eddng C3\u2013C5 k\u00e8m v\u00ed d\u1ee5 t\u00ednh to\u00e1n th\u1ef1c t\u1ebf.<\/p>\n","protected":false},"author":7,"featured_media":1066,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1633","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\/1633","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=1633"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1633\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1066"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}