{"id":2491,"date":"2026-08-25T12:34:04","date_gmt":"2026-08-25T05:34:04","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/"},"modified":"2026-08-25T12:34:04","modified_gmt":"2026-08-25T05:34:04","slug":"do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/","title":{"rendered":"\u0110\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a inox: c\u1eaft gi\u1ea3m r\u00e1c th\u1ea3i v\u00e0 chi ph\u00ed thay th\u1ebf"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    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class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">\u0110\u00e1nh gi\u00e1<\/span>\n    <\/div>\n    <\/div>\n<div class=\"custom-toc\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Noi_dung_chinh\" >N\u1ed9i dung ch\u00ednh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Vi_sao_inox_ben_vuot_troi\" >V\u00ec sao inox b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Tuoi_tho_tham_chieu_theo_moi_truong_Viet_Nam\" >Tu\u1ed5i th\u1ecd tham chi\u1ebfu theo m\u00f4i tr\u01b0\u1eddng Vi\u1ec7t Nam<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#It_thay_the_hon_it_rac_thai_xay_dung\" >\u00cdt thay th\u1ebf h\u01a1n = \u00edt r\u00e1c th\u1ea3i x\u00e2y d\u1ef1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Chi_phi_vong_doi_LCC_inox_thuong_re_hon_ve_dai_han\" >Chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC): inox th\u01b0\u1eddng r\u1ebb h\u01a1n v\u1ec1 d\u00e0i h\u1ea1n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Mo_phong_1_%E2%80%93_Ngoai_that_do_thi_C3_30_nam\" >M\u00f4 ph\u1ecfng 1 \u2013 Ngo\u1ea1i th\u1ea5t \u0111\u00f4 th\u1ecb (C3), 30 n\u0103m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Mo_phong_2_%E2%80%93_Ven_bien_C4_50_nam\" >M\u00f4 ph\u1ecfng 2 \u2013 Ven bi\u1ec3n (C4), 50 n\u0103m<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Tac_dong_carbon_va_tai_che\" >T\u00e1c \u0111\u1ed9ng carbon v\u00e0 t\u00e1i ch\u1ebf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#So_sanh_nhanh_voi_vat_lieu_thay_the\" >So s\u00e1nh nhanh v\u1edbi v\u1eadt li\u1ec7u thay th\u1ebf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Chon_dung_mac_inox_theo_ung_dung\" >Ch\u1ecdn \u0111\u00fang m\u00e1c inox theo \u1ee9ng d\u1ee5ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Hoan_thien_be_mat_va_%E2%80%9Co_tra%E2%80%9D\" >Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 \u201c\u1ed1 tr\u00e0\u201d<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Thiet_ke_%E2%80%93_gia_cong_de_khai_thac_toi_da_do_ben\" >Thi\u1ebft k\u1ebf \u2013 gia c\u00f4ng \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a \u0111\u1ed9 b\u1ec1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Tieu_chuan_ap_dung\" >Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Case_thuc_te_tham_khao\" >Case th\u1ef1c t\u1ebf tham kh\u1ea3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Khi_nao_inox_%E2%80%9Cdat%E2%80%9D_ma_van_re\" >Khi n\u00e0o inox \u201c\u0111\u1eaft\u201d m\u00e0 v\u1eabn r\u1ebb?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/inoxcuongthinh.com\/do-ben-vuot-troi-cua-inox-cat-giam-rac-thai-va-chi-phi-thay-the\/#Ket_luan_%E2%80%93_Lua_chon_thong_minh_cho_cong_trinh_ben_vung\" >K\u1ebft lu\u1eadn \u2013 L\u1ef1a ch\u1ecdn th\u00f4ng minh cho c\u00f4ng tr\u00ecnh b\u1ec1n v\u1eefng<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Noi_dung_chinh\"><\/span>N\u1ed9i dung ch\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><a href=\"#toc-0-vi-sao-inox-ben-vuot-troi\">V\u00ec sao inox b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i?<\/a><\/li>\n<li><a href=\"#toc-1-tuoi-tho-tham-chieu-theo-moi-truong-viet-nam\">Tu\u1ed5i th\u1ecd tham chi\u1ebfu theo m\u00f4i tr\u01b0\u1eddng Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-2-it-thay-the-hon-it-rac-thai-xay-dung\">\u00cdt thay th\u1ebf h\u01a1n = \u00edt r\u00e1c th\u1ea3i x\u00e2y d\u1ef1ng<\/a><\/li>\n<li><a href=\"#toc-3-chi-phi-vong-doi-lcc-inox-thuong-re-hon-ve-dai-han\">Chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC): inox th\u01b0\u1eddng r\u1ebb h\u01a1n v\u1ec1 d\u00e0i h\u1ea1n<\/a><\/li>\n<li><a href=\"#toc-4-tac-dong-carbon-va-tai-che\">T\u00e1c \u0111\u1ed9ng carbon v\u00e0 t\u00e1i ch\u1ebf<\/a><\/li>\n<li><a href=\"#toc-5-so-sanh-nhanh-voi-vat-lieu-thay-the\">So s\u00e1nh nhanh v\u1edbi v\u1eadt li\u1ec7u thay th\u1ebf<\/a><\/li>\n<li><a href=\"#toc-6-chon-dung-mac-inox-theo-ung-dung\">Ch\u1ecdn \u0111\u00fang m\u00e1c inox theo \u1ee9ng d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-7-thiet-ke-gia-cong-de-khai-thac-toi-da-do-ben\">Thi\u1ebft k\u1ebf \u2013 gia c\u00f4ng \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a \u0111\u1ed9 b\u1ec1n<\/a><\/li>\n<li><a href=\"#toc-8-tieu-chuan-ap-dung\">Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-9-case-thuc-te-tham-khao\">Case th\u1ef1c t\u1ebf tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-10-khi-nao-inox-dat-ma-van-re\">Khi n\u00e0o inox \u201c\u0111\u1eaft\u201d m\u00e0 v\u1eabn r\u1ebb?<\/a><\/li>\n<li><a href=\"#toc-11-ket-luan-lua-chon-thong-minh-cho-cong-trinh-ben-vu\">K\u1ebft lu\u1eadn \u2013 L\u1ef1a ch\u1ecdn th\u00f4ng minh cho c\u00f4ng tr\u00ecnh b\u1ec1n v\u1eefng<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) c\u00f3 tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng d\u00e0i v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi th\u00e9p carbon s\u01a1n\/m\u1ea1 k\u1ebdm v\u00e0 nhi\u1ec1u v\u1eadt li\u1ec7u v\u1ecf b\u1ecdc kh\u00e1c. Trong b\u1ed1i c\u1ea3nh c\u00f4ng tr\u00ecnh xanh v\u00e0 kinh t\u1ebf v\u00f2ng tr\u00f2n, \u0111\u1ed9 b\u1ec1n n\u00e0y tr\u1ef1c ti\u1ebfp gi\u1ea3m r\u00e1c th\u1ea3i x\u00e2y d\u1ef1ng, h\u1ea1n ch\u1ebf gi\u00e1n \u0111o\u1ea1n thi c\u00f4ng b\u1ea3o tr\u00ec, \u0111\u1ed3ng th\u1eddi t\u1ed1i \u01b0u chi ph\u00ed v\u00f2ng \u0111\u1eddi. B\u00e0i vi\u1ebft \u0111i th\u1eb3ng v\u00e0o c\u00e2u h\u1ecfi: Inox gi\u00fap gi\u1ea3m r\u00e1c th\u1ea3i v\u00e0 chi ph\u00ed thay th\u1ebf nh\u01b0 th\u1ebf n\u00e0o, ch\u1ecdn m\u00e1c n\u00e0o cho t\u1eebng m\u00f4i tr\u01b0\u1eddng \u1edf Vi\u1ec7t Nam, v\u00e0 c\u1ea7n l\u01b0u \u00fd g\u00ec \u0111\u1ec3 \u0111\u1ed9 b\u1ec1n \u0111\u01b0\u1ee3c ph\u00e1t huy t\u1ed1i \u0111a.<\/p>\n<h2 id=\"toc-0-vi-sao-inox-ben-vuot-troi\"><span class=\"ez-toc-section\" id=\"Vi_sao_inox_ben_vuot_troi\"><\/span>V\u00ec sao inox b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u01a1 ch\u1ebf th\u1ee5 \u0111\u1ed9ng h\u00f3a: L\u1edbp m\u00e0ng oxit Cr2O3 si\u00eau m\u1ecfng t\u1ef1 t\u00e1i t\u1ea1o khi b\u1ecb x\u01b0\u1edbc gi\u00fap inox ch\u1ed1ng \u0103n m\u00f2n kh\u00ed quy\u1ec3n r\u1ea5t hi\u1ec7u qu\u1ea3, kh\u00e1c v\u1edbi l\u1edbp s\u01a1n\/m\u1ea1 c\u00f3 th\u1ec3 bong tr\u00f3c theo th\u1eddi gian.<br \/>\n&#8211; H\u1ee3p kim h\u00f3a c\u00f3 ch\u1ee7 \u0111\u00edch: Crom (Cr) t\u1ea1o l\u1edbp th\u1ee5 \u0111\u1ed9ng, Molypden (Mo) t\u0103ng ch\u1ed1ng r\u1ed7 pitting trong m\u00f4i tr\u01b0\u1eddng chloride (ven bi\u1ec3n), Nito (N) t\u0103ng b\u1ec1n v\u00e0 ch\u1ed1ng k\u1ebd n\u1ee9t. M\u1ee9c kh\u00e1ng r\u1ed7 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0\u1edbc l\u01b0\u1ee3ng b\u1eb1ng ch\u1ec9 s\u1ed1 PREN = %Cr + 3,3\u00d7%Mo + 16\u00d7%N.<br \/>\n  &#8211; 304: PREN ~ 18\u201319 \u2013 ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t\/ngo\u1ea1i th\u1ea5t \u0111\u00f4 th\u1ecb kh\u00f4 (C2\u2013C3).<br \/>\n  &#8211; 316\/316L: PREN ~ 24 \u2013 ph\u00f9 h\u1ee3p ven bi\u1ec3n (C4) n\u1ebfu ho\u00e0n thi\u1ec7n \u0111\u00fang c\u00e1ch.<br \/>\n  &#8211; Duplex 2205: PREN ~ 34\u201336 \u2013 cho m\u00f4i tr\u01b0\u1eddng chloride kh\u1eafc nghi\u1ec7t (C5, b\u1eafn s\u00f3ng).<br \/>\n  &#8211; 201\/430: PREN th\u1ea5p h\u01a1n 304, ch\u1ee7 y\u1ebfu cho n\u1ed9i th\u1ea5t kh\u00f4, \u00edt chloride.<br \/>\n&#8211; C\u1ea5u tr\u00fac b\u1ec1n c\u01a1 h\u1ecdc: \u0110\u1ed9 b\u1ec1n ch\u1ea3y v\u00e0 \u0111\u1ed9 d\u1ebbo cao cho ph\u00e9p thi\u1ebft k\u1ebf m\u1ecfng nh\u1eb9 m\u00e0 v\u1eabn b\u1ec1n; nh\u00f3m duplex c\u00f2n cho ph\u00e9p gi\u1ea3m chi\u1ec1u d\u00e0y 15\u201335% so v\u1edbi austenitic\/th\u00e9p carbon \u1edf c\u00f9ng y\u00eau c\u1ea7u c\u01a1 t\u00ednh.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o:<br \/>\n&#8211; Nickel Institute \u2013 Guidelines for material selection in atmospheric\/marine environments<br \/>\n&#8211; IMOA (International Molybdenum Association) \u2013 Selection of stainless steels in coastal architecture<br \/>\n&#8211; Worldstainless (ISSF) \u2013 Stainless steel and sustainability<\/p>\n<h2 id=\"toc-1-tuoi-tho-tham-chieu-theo-moi-truong-viet-nam\"><span class=\"ez-toc-section\" id=\"Tuoi_tho_tham_chieu_theo_moi_truong_Viet_Nam\"><\/span>Tu\u1ed5i th\u1ecd tham chi\u1ebfu theo m\u00f4i tr\u01b0\u1eddng Vi\u1ec7t Nam<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ph\u00e2n lo\u1ea1i \u0103n m\u00f2n kh\u00ed quy\u1ec3n c\u00f3 th\u1ec3 vi\u1ec7n d\u1eabn theo ISO 9223 (C2\u2013C5). Kinh nghi\u1ec7m v\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ee7a Nickel Institute\/IMOA cho th\u1ea5y:<br \/>\n&#8211; \u0110\u00f4 th\u1ecb n\u1ed9i \u0111\u1ecba (H\u00e0 N\u1ed9i, C2\u2013C3):<br \/>\n  &#8211; 304 ngo\u1ea1i th\u1ea5t ho\u00e0n thi\u1ec7n t\u1ed1t: tu\u1ed5i th\u1ecd >50 n\u0103m h\u1ea7u nh\u01b0 kh\u00f4ng c\u1ea7n thay th\u1ebf, ch\u1ec9 v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<br \/>\n  &#8211; 201\/430: d\u00f9ng an to\u00e0n cho n\u1ed9i th\u1ea5t kh\u00f4; ngo\u1ea1i th\u1ea5t c\u00f3 nguy c\u01a1 \u1ed1 tr\u00e0 (tea staining).<br \/>\n&#8211; Ven bi\u1ec3n c\u00e1ch b\u1edd 0,5\u20135 km (\u0110\u00e0 N\u1eb5ng, H\u1ea3i Ph\u00f2ng, V\u0169ng T\u00e0u, C4):<br \/>\n  &#8211; 316\/316L: tu\u1ed5i th\u1ecd >50 n\u0103m v\u1edbi ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t ph\u00f9 h\u1ee3p v\u00e0 v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<br \/>\n  &#8211; 304: nguy c\u01a1 \u1ed1 tr\u00e0\/r\u1ed7 c\u1ee5c b\u1ed9; ch\u1ec9 d\u00f9ng n\u1ebfu v\u1ecb tr\u00ed khu\u1ea5t s\u01b0\u01a1ng mu\u1ed1i v\u00e0 c\u00f3 k\u1ebf ho\u1ea1ch v\u1ec7 sinh ch\u1eb7t ch\u1ebd.<br \/>\n&#8211; Khu v\u1ef1c b\u1eafn s\u00f3ng\/\u0111\u1eb7c bi\u1ec7t kh\u1eafc nghi\u1ec7t (C5, c\u00f4ng tr\u00ecnh c\u1ea7u c\u1ea3ng, nh\u00e0 m\u00e1y mu\u1ed1i, \u0111\u00ea ch\u1eafn s\u00f3ng):<br \/>\n  &#8211; Duplex 2205 ho\u1eb7c 316L d\u00e0y h\u01a1n\/ho\u00e0n thi\u1ec7n cao; ch\u1ecdn duplex khi c\u00f3 nguy c\u01a1 ng\u1eadp\/\u0111\u1ecdng chloride.<\/p>\n<p>L\u01b0u \u00fd: \u0110i\u1ec1u ki\u1ec7n vi kh\u00ed h\u1eadu (\u0111\u1ecdng n\u01b0\u1edbc, khe k\u1ebd, mu\u1ed1i t\u00edch t\u1ee5) \u1ea3nh h\u01b0\u1edfng m\u1ea1nh h\u01a1n \u201ckho\u1ea3ng c\u00e1ch t\u1edbi bi\u1ec3n\u201d. Ho\u00e0n thi\u1ec7n v\u00e0 thi\u1ebft k\u1ebf t\u1ed1t c\u00f3 th\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd l\u00ean \u0111\u00e1ng k\u1ec3.<\/p>\n<p>Ngu\u1ed3n: Nickel Institute; IMOA Coastal guide; ISO 9223.<\/p>\n<h2 id=\"toc-2-it-thay-the-hon-it-rac-thai-xay-dung\"><span class=\"ez-toc-section\" id=\"It_thay_the_hon_it_rac_thai_xay_dung\"><\/span>\u00cdt thay th\u1ebf h\u01a1n = \u00edt r\u00e1c th\u1ea3i x\u00e2y d\u1ef1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1ed7i l\u1ea7n s\u01a1n l\u1ea1i\/thay th\u1ebf lan can, \u1ed1p m\u1eb7t d\u1ef1ng, m\u00e1ng x\u1ed1i\u2026 \u0111\u1ec1u ph\u00e1t sinh:<br \/>\n&#8211; R\u00e1c th\u1ea3i v\u1eadt li\u1ec7u c\u0169 (kim lo\u1ea1i, s\u01a1n, ph\u1ee5 ki\u1ec7n), b\u1ee5i s\u01a1n\/m\u1ea1t m\u00e0i.<br \/>\n&#8211; D\u00e0n gi\u00e1o, bao che, nh\u00e2n c\u00f4ng th\u00e1o l\u1eafp \u2013 gi\u00e1n \u0111o\u1ea1n v\u1eadn h\u00e0nh.<br \/>\n&#8211; Chi ph\u00ed logistics x\u1eed l\u00fd r\u00e1c, ph\u00e1t th\u1ea3i do v\u1eadn chuy\u1ec3n.<\/p>\n<p>V\u00ed d\u1ee5 \u0111\u1ecbnh l\u01b0\u1ee3ng (k\u1ecbch b\u1ea3n tham kh\u1ea3o cho 1.000 m lan can ngo\u00e0i tr\u1eddi):<br \/>\n&#8211; V\u1eadt li\u1ec7u th\u00e9p s\u01a1n m\u1ea1 k\u1ebdm: thay th\u1ebf trung b\u00ecnh 2\u20133 l\u1ea7n trong 45\u201350 n\u0103m \u1edf m\u00f4i tr\u01b0\u1eddng C4; t\u1ed5ng r\u00e1c th\u1ea3i kim lo\u1ea1i-s\u01a1n 6\u20139 t\u1ea5n, c\u1ed9ng th\u00eam ch\u1ea5t th\u1ea3i s\u01a1n v\u00e0 m\u00e0i.<br \/>\n&#8211; Inox 316L: kh\u00f4ng c\u1ea7n thay th\u1ebf trong 50 n\u0103m; v\u1eadt li\u1ec7u kh\u00f4ng ph\u00e1t sinh r\u00e1c th\u1ea3i \u0111\u00e1ng k\u1ec3, cu\u1ed1i v\u00f2ng \u0111\u1eddi thu h\u1ed3i ph\u1ebf li\u1ec7u v\u1edbi t\u1ef7 l\u1ec7 cao.<\/p>\n<p>T\u1ef7 l\u1ec7 thu h\u1ed3i v\u00f2ng \u0111\u1eddi c\u1ee7a inox \u0111\u1ea1t kho\u1ea3ng 85\u201390%, v\u1edbi h\u00e0m l\u01b0\u1ee3ng ph\u1ebf li\u1ec7u trong s\u1ea3n ph\u1ea9m m\u1edbi trung b\u00ecnh to\u00e0n c\u1ea7u ~60% \u2013 g\u00f3p ph\u1ea7n gi\u1ea3m m\u1ea1nh nhu c\u1ea7u t\u00e0i nguy\u00ean nguy\u00ean sinh v\u00e0 r\u00e1c th\u1ea3i ch\u00f4n l\u1ea5p. Ngu\u1ed3n: Worldstainless (ISSF) \u2013 Recycling of Stainless Steel.<\/p>\n<h2 id=\"toc-3-chi-phi-vong-doi-lcc-inox-thuong-re-hon-ve-dai-han\"><span class=\"ez-toc-section\" id=\"Chi_phi_vong_doi_LCC_inox_thuong_re_hon_ve_dai_han\"><\/span>Chi ph\u00ed v\u00f2ng \u0111\u1eddi (LCC): inox th\u01b0\u1eddng r\u1ebb h\u01a1n v\u1ec1 d\u00e0i h\u1ea1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f4ng th\u1ee9c kh\u00e1i qu\u00e1t:<br \/>\nLCC = Chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u + \u2211 Chi ph\u00ed v\u1eadn h\u00e0nh\/b\u1ea3o tr\u00ec_th\u1eddi \u0111i\u1ec3m t chi\u1ebft kh\u1ea5u theo l\u00e3i su\u1ea5t r + Chi ph\u00ed th\u00e1o d\u1ee1 \u2013 Gi\u00e1 tr\u1ecb thu h\u1ed3i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mo_phong_1_%E2%80%93_Ngoai_that_do_thi_C3_30_nam\"><\/span>M\u00f4 ph\u1ecfng 1 \u2013 Ngo\u1ea1i th\u1ea5t \u0111\u00f4 th\u1ecb (C3), 30 n\u0103m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Ph\u01b0\u01a1ng \u00e1n A (th\u00e9p m\u1ea1 k\u1ebdm s\u01a1n): s\u01a1n d\u1eb7m 7 n\u0103m\/l\u1ea7n, thay m\u1edbi n\u0103m 20\u201325.<br \/>\n&#8211; Ph\u01b0\u01a1ng \u00e1n B (inox 304 No.4): ch\u1ec9 v\u1ec7 sinh 12\u201318 th\u00e1ng\/l\u1ea7n (n\u01b0\u1edbc s\u1ea1ch\/ ch\u1ea5t t\u1ea9y nh\u1eb9).<\/p>\n<p>K\u1ebft qu\u1ea3 \u0111i\u1ec3n h\u00ecnh v\u1edbi r = 8%: LCC inox 304 th\u1ea5p h\u01a1n 10\u201320% so v\u1edbi th\u00e9p m\u1ea1 s\u01a1n khi t\u00ednh \u0111\u1ee7 chi ph\u00ed gi\u00e0n gi\u00e1o, d\u1eebng v\u1eadn h\u00e0nh, x\u1eed l\u00fd th\u1ea3i v\u00e0 kh\u00f4ng t\u00ednh \u201cph\u00e1t sinh\u201d do \u0103n m\u00f2n \u1ea9n (\u1ed1c bu l\u00f4ng, m\u1ed1i gh\u00e9p).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mo_phong_2_%E2%80%93_Ven_bien_C4_50_nam\"><\/span>M\u00f4 ph\u1ecfng 2 \u2013 Ven bi\u1ec3n (C4), 50 n\u0103m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Th\u00e9p m\u1ea1 k\u1ebdm s\u01a1n: s\u01a1n d\u1eb7m m\u1ed7i 5\u20137 n\u0103m, thay m\u1edbi 12\u201320 n\u0103m\/l\u1ea7n t\u00f9y ho\u00e0n thi\u1ec7n v\u00e0 thi\u1ebft k\u1ebf; t\u1ed5ng c\u1ed9ng 2\u20133 l\u1ea7n thay trong 50 n\u0103m.<br \/>\n&#8211; Inox 316L hairline\/2B \u0111\u00e1nh x\u01b0\u1edbc nh\u1eb9: kh\u00f4ng thay m\u1edbi, v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<\/p>\n<p>K\u1ebft qu\u1ea3 \u0111i\u1ec3n h\u00ecnh v\u1edbi r = 6\u20138%: LCC inox 316L th\u1ea5p h\u01a1n 20\u201335%. L\u1ee3i th\u1ebf t\u0103ng m\u1ea1nh n\u1ebfu t\u00ednh th\u00eam chi ph\u00ed c\u01a1 h\u1ed9i do d\u1eebng khai th\u00e1c, chi ph\u00ed r\u1ee7i ro an to\u00e0n, v\u00e0 t\u00edn d\u1ee5ng gi\u00e1 tr\u1ecb thu h\u1ed3i ph\u1ebf li\u1ec7u inox \u1edf cu\u1ed1i v\u00f2ng \u0111\u1eddi.<\/p>\n<p>Ngu\u1ed3n \u0111\u1ecbnh h\u01b0\u1edbng: Nickel Institute; IMOA; FHWA\/State DOTs v\u1ec1 th\u00e9p kh\u00f4ng g\u1ec9 c\u1ed1t b\u00ea t\u00f4ng cho c\u1ea7u (cho th\u1ea5y thay th\u1ebf\/ b\u1ea3o tr\u00ec gi\u1ea3m \u0111\u00e1ng k\u1ec3 trong v\u00f2ng \u0111\u1eddi d\u00e0i).<\/p>\n<h2 id=\"toc-4-tac-dong-carbon-va-tai-che\"><span class=\"ez-toc-section\" id=\"Tac_dong_carbon_va_tai_che\"><\/span>T\u00e1c \u0111\u1ed9ng carbon v\u00e0 t\u00e1i ch\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Inox ch\u1ee7 y\u1ebfu s\u1ea3n xu\u1ea5t b\u1eb1ng l\u00f2 \u0111i\u1ec7n h\u1ed3 quang (EAF) v\u1edbi t\u1ef7 l\u1ec7 ph\u1ebf li\u1ec7u cao, gi\u00fap gi\u1ea3m ph\u00e1t th\u1ea3i so v\u1edbi luy\u1ec7n th\u00e9p nguy\u00ean sinh; c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t cung c\u1ea5p EPD\/LCI \u0111\u1ec3 l\u01b0\u1ee3ng h\u00f3a.<br \/>\n&#8211; T\u1ef7 l\u1ec7 thu h\u1ed3i cu\u1ed1i v\u00f2ng \u0111\u1eddi r\u1ea5t cao (85\u201390%) v\u00e0 gi\u00e1 tr\u1ecb ph\u1ebf li\u1ec7u t\u1ed1t khuy\u1ebfn kh\u00edch t\u00e1i ch\u1ebf \u2013 gi\u1ea3m t\u1ea3i ch\u00f4n l\u1ea5p v\u00e0 nhu c\u1ea7u khai th\u00e1c nguy\u00ean li\u1ec7u.<br \/>\n&#8211; D\u00f9ng m\u00e1c b\u1ec1n h\u01a1n (316\/duplex) cho m\u00f4i tr\u01b0\u1eddng n\u1eb7ng chloride gi\u00fap \u201ctr\u00e1nh ph\u00e1t th\u1ea3i\u201d t\u1eeb chu k\u1ef3 thay th\u1ebf, b\u1ea3o tr\u00ec s\u01a1n v\u00e0 v\u1eadn chuy\u1ec3n nhi\u1ec1u l\u1ea7n.<br \/>\nNgu\u1ed3n: Worldstainless LCI\/ISSF; b\u00e1o c\u00e1o EPD c\u1ee7a c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t l\u1edbn.<\/p>\n<h2 id=\"toc-5-so-sanh-nhanh-voi-vat-lieu-thay-the\"><span class=\"ez-toc-section\" id=\"So_sanh_nhanh_voi_vat_lieu_thay_the\"><\/span>So s\u00e1nh nhanh v\u1edbi v\u1eadt li\u1ec7u thay th\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Th\u00e9p carbon s\u01a1n\/m\u1ea1: r\u1ebb ban \u0111\u1ea7u nh\u01b0ng v\u00f2ng \u0111\u1eddi ng\u1eafn \u1edf C3\u2013C5; r\u1ee7i ro \u0103n m\u00f2n khe k\u1ebd, bong s\u01a1n, chi ph\u00ed b\u1ea3o tr\u00ec cao.<br \/>\n&#8211; Nh\u00f4m: nh\u1eb9 v\u00e0 ch\u1ed1ng \u0103n m\u00f2n kh\u00ed quy\u1ec3n t\u1ed1t, nh\u01b0ng \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n, tr\u1ea7y x\u01b0\u1edbc d\u1ec5 th\u1ea5y; trong chloride \u1ea9m c\u00f3 th\u1ec3 \u0103n m\u00f2n khe k\u1ebd\/galvanic khi gh\u00e9p v\u1edbi th\u00e9p kh\u00e1c.<br \/>\n&#8211; G\u1ed7: th\u00e2n thi\u1ec7n nh\u01b0ng c\u1ea7n x\u1eed l\u00fd, b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3, tu\u1ed5i th\u1ecd ngo\u00e0i tr\u1eddi h\u1ea1n ch\u1ebf.<br \/>\n&#8211; B\u00ea t\u00f4ng c\u1ed1t th\u00e9p: khu v\u1ef1c chloride (ven bi\u1ec3n, c\u1ea7u c\u1ea3ng) d\u1ec5 th\u1ea5m ion Cl- g\u00e2y n\u1ee9t do n\u1edf th\u1ec3 t\u00edch c\u1ee7a g\u1ec9 th\u00e9p; d\u00f9ng c\u1ed1t th\u00e9p kh\u00f4ng g\u1ec9 (316L ho\u1eb7c duplex) k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd t\u1eeb v\u00e0i th\u1eadp k\u1ef7 t\u1edbi >75\u2013100 n\u0103m, gi\u1ea3m l\u1edbn chi ph\u00ed b\u1ea3o tr\u00ec. Ngu\u1ed3n: FHWA Tech Briefs; Stainless Steel Reinforcement Institute.<\/p>\n<h2 id=\"toc-6-chon-dung-mac-inox-theo-ung-dung\"><span class=\"ez-toc-section\" id=\"Chon_dung_mac_inox_theo_ung_dung\"><\/span>Ch\u1ecdn \u0111\u00fang m\u00e1c inox theo \u1ee9ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; N\u1ed9i th\u1ea5t, th\u1ef1c ph\u1ea9m, khu v\u1ef1c kh\u00f4: 201\/430\/304 t\u00f9y y\u00eau c\u1ea7u th\u1ea9m m\u1ef9 v\u00e0 chi ph\u00ed (201\/430 cho h\u00e0ng trang tr\u00ed n\u1ed9i th\u1ea5t kh\u00f4; 304 cho b\u1ebfp c\u00f4ng nghi\u1ec7p, nh\u00e0 m\u00e1y F&#038;B).<br \/>\n&#8211; Ngo\u1ea1i th\u1ea5t \u0111\u00f4 th\u1ecb (C2\u2013C3): 304 v\u1edbi ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t t\u1ed1t (No.4\/Hairline, Bead-blast m\u1ecbn) v\u00e0 chi ti\u1ebft tho\u00e1t n\u01b0\u1edbc h\u1ee3p l\u00fd.<br \/>\n&#8211; Ven bi\u1ec3n (C4): 316\/316L l\u00e0 chu\u1ea9n m\u1ef1c cho lan can, \u1ed1p m\u1eb7t d\u1ef1ng, m\u00e1i \u0111\u00f3n, m\u00e1ng x\u1ed1i.<br \/>\n&#8211; B\u1eafn s\u00f3ng\/chloride cao (C5): duplex 2205 cho k\u1ebft c\u1ea5u, bu l\u00f4ng\/neo, \u1ed1c v\u00edt; ho\u1eb7c 316L t\u0103ng chi\u1ec1u d\u00e0y v\u00e0 ki\u1ec3m so\u00e1t khe k\u1ebd nghi\u00eam ng\u1eb7t.<br \/>\n&#8211; M\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p clo\/amoniac\/h\u00f3a ch\u1ea5t: tham v\u1ea5n b\u1ea3ng kh\u00e1ng \u0103n m\u00f2n c\u1ee7a Nickel Institute\/IMOA; c\u00f3 th\u1ec3 c\u1ea7n 904L, 254SMO ho\u1eb7c duplex si\u00eau h\u1ee3p kim.<\/p>\n<p>M\u1eb9o nhanh theo PREN:<br \/>\n&#8211; PREN \u2265 24 cho ngo\u1ea1i th\u1ea5t ven bi\u1ec3n;<br \/>\n&#8211; PREN \u2265 34 cho b\u1eafn s\u00f3ng\/\u0111\u1ecdng chloride k\u00e9o d\u00e0i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hoan_thien_be_mat_va_%E2%80%9Co_tra%E2%80%9D\"><\/span>Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t v\u00e0 \u201c\u1ed1 tr\u00e0\u201d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Ho\u00e0n thi\u1ec7n m\u1ecbn, k\u00edn (No.4 tinh, 2B, bead-blast m\u1ecbn) v\u00e0 tr\u00e1nh nh\u00e1m th\u00f4 gi\u00fap gi\u1ea3m gi\u1eef mu\u1ed1i\/b\u1ee5i \u2013 h\u1ea1n ch\u1ebf \u1ed1 tr\u00e0.<br \/>\n&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 6\u201312 th\u00e1ng\/l\u1ea7n \u1edf v\u00f9ng ven bi\u1ec3n b\u1eb1ng n\u01b0\u1edbc s\u1ea1ch\/ ch\u1ea5t t\u1ea9y nh\u1eb9 pH trung t\u00ednh.<\/p>\n<p>Ngu\u1ed3n: IMOA \u2013 Guidelines to prevent tea staining.<\/p>\n<h2 id=\"toc-7-thiet-ke-gia-cong-de-khai-thac-toi-da-do-ben\"><span class=\"ez-toc-section\" id=\"Thiet_ke_%E2%80%93_gia_cong_de_khai_thac_toi_da_do_ben\"><\/span>Thi\u1ebft k\u1ebf \u2013 gia c\u00f4ng \u0111\u1ec3 khai th\u00e1c t\u1ed1i \u0111a \u0111\u1ed9 b\u1ec1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Tr\u00e1nh khe k\u1ebd \u0111\u1ecdng n\u01b0\u1edbc\/mu\u1ed1i; bo tr\u00f2n g\u00f3c c\u1ea1nh, b\u1ed1 tr\u00ed tho\u00e1t n\u01b0\u1edbc nhanh.<br \/>\n&#8211; Tr\u00e1nh \u0103n m\u00f2n \u0111i\u1ec7n h\u00f3a: d\u00f9ng bu l\u00f4ng\/\u1ed1c v\u00e0 ph\u1ee5 ki\u1ec7n c\u00f9ng c\u1ea5p v\u1eadt li\u1ec7u (316 v\u1edbi 316); c\u00e1ch \u0111i\u1ec7n khi gh\u00e9p v\u1edbi kim lo\u1ea1i kh\u00e1c.<br \/>\n&#8211; Kh\u00f4ng \u0111\u1ec3 nhi\u1ec5m b\u1ea9n s\u1eaft t\u1ef1 do khi gia c\u00f4ng: t\u00e1ch bi\u1ec7t d\u1ee5ng c\u1ee5 m\u00e0i\/c\u1eaft v\u1edbi th\u00e9p carbon; l\u00e0m s\u1ea1ch\/pickle \u2013 passivate sau h\u00e0n theo ASTM A380\/A967.<br \/>\n&#8211; Ch\u1ecdn c\u00e1ch li\u00ean k\u1ebft d\u1ec5 v\u1ec7 sinh v\u00e0 thay th\u1ebf c\u1ee5c b\u1ed9 n\u1ebfu c\u1ea7n; che ch\u1eafn b\u1ec1 m\u1eb7t trong qu\u00e1 tr\u00ecnh x\u00e2y l\u1eafp \u0111\u1ec3 tr\u00e1nh v\u00f4i v\u1eefa\/ho\u00e1 ch\u1ea5t b\u00e1m.<\/p>\n<h2 id=\"toc-8-tieu-chuan-ap-dung\"><span class=\"ez-toc-section\" id=\"Tieu_chuan_ap_dung\"><\/span>Ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u: ASTM A240 (t\u1ea5m), A276 (thanh), A554 (\u1ed1ng trang tr\u00ed), EN 10088 (th\u00e0nh ph\u1ea7n v\u00e0 m\u00e1c).<br \/>\n&#8211; Th\u1eed \u0103n m\u00f2n\/khuy\u1ebfn ngh\u1ecb thi\u1ebft k\u1ebf: ASTM G48 (pitting), ISO 9223 (ph\u00e2n lo\u1ea1i \u0103n m\u00f2n kh\u00ed quy\u1ec3n).<br \/>\n&#8211; Gia c\u00f4ng \u2013 l\u00e0m s\u1ea1ch: ASTM A380\/A967 (l\u00e0m s\u1ea1ch, th\u1ee5 \u0111\u1ed9ng h\u00f3a).<br \/>\nC\u00e1c ti\u00eau chu\u1ea9n ASTM\/EN n\u00eau tr\u00ean c\u00f3 th\u1ec3 \u0111\u1ed1i chi\u1ebfu \u00e1p d\u1ee5ng song song v\u1edbi y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt\/TCVN hi\u1ec7n h\u00e0nh trong h\u1ed3 s\u01a1 m\u1eddi th\u1ea7u.<\/p>\n<h2 id=\"toc-9-case-thuc-te-tham-khao\"><span class=\"ez-toc-section\" id=\"Case_thuc_te_tham_khao\"><\/span>Case th\u1ef1c t\u1ebf tham kh\u1ea3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Lan can inox 304 t\u1ea1i n\u1ed9i \u0111\u00f4 H\u00e0 N\u1ed9i: sau >10 n\u0103m s\u1eed d\u1ee5ng, b\u1ea3o tr\u00ec ch\u1ee7 y\u1ebfu l\u00e0 r\u1eeda b\u1ee5i; kh\u00f4ng ghi nh\u1eadn bong tr\u00f3c\/hoen g\u1ec9 c\u1ee5c b\u1ed9 khi thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc t\u1ed1t.<br \/>\n&#8211; M\u1eb7t d\u1ef1ng 316L \u1edf ven bi\u1ec3n mi\u1ec1n Trung: v\u1ec7 sinh 6\u201312 th\u00e1ng\/l\u1ea7n, b\u1ec1 m\u1eb7t gi\u1eef th\u1ea9m m\u1ef9, kh\u00f4ng ph\u1ea3i thay t\u1ea5m trong h\u01a1n m\u1ed9t th\u1eadp k\u1ef7.<br \/>\n&#8211; Nh\u00e0 m\u00e1y x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i: thay th\u00e9p m\u1ea1 k\u1ebdm sang inox 316L cho m\u00e1ng x\u1ed1i \u2013 gi\u1ea3m thay th\u1ebf ph\u1ee5 ki\u1ec7n \u1ed1c v\u00edt\/kh\u1edbp n\u1ed1i, th\u1eddi gian ng\u1eebng m\u00e1y gi\u1ea3m r\u00f5 r\u1ec7t.<\/p>\n<h2 id=\"toc-10-khi-nao-inox-dat-ma-van-re\"><span class=\"ez-toc-section\" id=\"Khi_nao_inox_%E2%80%9Cdat%E2%80%9D_ma_van_re\"><\/span>Khi n\u00e0o inox \u201c\u0111\u1eaft\u201d m\u00e0 v\u1eabn r\u1ebb?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Inox c\u00f3 th\u1ec3 cao h\u01a1n 10\u201360% chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u t\u00f9y m\u00e1c v\u00e0 ho\u00e0n thi\u1ec7n. Nh\u01b0ng:<br \/>\n&#8211; Chu k\u1ef3 thay th\u1ebf k\u00e9o d\u00e0i 2\u20135 l\u1ea7n.<br \/>\n&#8211; B\u1ea3o tr\u00ec nh\u1eb9, kh\u00f4ng s\u01a1n l\u1ea1i.<br \/>\n&#8211; Gi\u00e1 tr\u1ecb thu h\u1ed3i ph\u1ebf li\u1ec7u cao.<br \/>\n&#8211; Gi\u1ea3m r\u1ee7i ro s\u1ef1 c\u1ed1 an to\u00e0n v\u00e0 gi\u00e1n \u0111o\u1ea1n v\u1eadn h\u00e0nh.<\/p>\n<p>V\u1edbi c\u00e1c h\u1ea1ng m\u1ee5c ti\u1ebfp x\u00fac th\u1eddi ti\u1ebft, chloride, hay kh\u00f3 ti\u1ebfp c\u1eadn (m\u1eb7t d\u1ef1ng cao t\u1ea7ng, c\u1ea7u, c\u1ea3ng, b\u1ec7nh vi\u1ec7n, nh\u00e0 m\u00e1y th\u1ef1c ph\u1ea9m), LCC c\u1ee7a inox th\u01b0\u1eddng th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi ph\u01b0\u01a1ng \u00e1n s\u01a1n\/m\u1ea1 truy\u1ec1n th\u1ed1ng.<\/p>\n<h2 id=\"toc-11-ket-luan-lua-chon-thong-minh-cho-cong-trinh-ben-vu\"><span class=\"ez-toc-section\" id=\"Ket_luan_%E2%80%93_Lua_chon_thong_minh_cho_cong_trinh_ben_vung\"><\/span>K\u1ebft lu\u1eadn \u2013 L\u1ef1a ch\u1ecdn th\u00f4ng minh cho c\u00f4ng tr\u00ecnh b\u1ec1n v\u1eefng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; \u0110\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a inox \u0111\u1ebfn t\u1eeb l\u1edbp th\u1ee5 \u0111\u1ed9ng t\u1ef1 l\u00e0nh v\u00e0 h\u1ee3p kim h\u00f3a t\u1ed1i \u01b0u, gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng l\u00ean t\u1edbi 50+ n\u0103m trong ph\u1ea7n l\u1edbn \u0111i\u1ec1u ki\u1ec7n kh\u00ed quy\u1ec3n n\u1ebfu ch\u1ecdn m\u00e1c v\u00e0 ho\u00e0n thi\u1ec7n \u0111\u00fang.<br \/>\n&#8211; \u00cdt l\u1ea7n thay th\u1ebf h\u01a1n \u0111\u1ed3ng ngh\u0129a \u00edt r\u00e1c th\u1ea3i x\u00e2y d\u1ef1ng, \u00edt ph\u00e1t th\u1ea3i li\u00ean quan v\u1eadn chuy\u1ec3n\/b\u1ea3o tr\u00ec, v\u00e0 gi\u00e1 tr\u1ecb thu h\u1ed3i cao v\u00e0o cu\u1ed1i v\u00f2ng \u0111\u1eddi.<br \/>\n&#8211; T\u00ednh theo chi ph\u00ed v\u00f2ng \u0111\u1eddi, inox th\u01b0\u1eddng ti\u1ebft ki\u1ec7m 10\u201335% cho h\u1ea1ng m\u1ee5c ngo\u1ea1i th\u1ea5t v\u00e0 m\u00f4i tr\u01b0\u1eddng ven bi\u1ec3n, \u0111\u1eb7c bi\u1ec7t khi t\u00ednh \u0111\u1ee7 chi ph\u00ed gi\u00e1n \u0111o\u1ea1n v\u00e0 x\u1eed l\u00fd r\u00e1c th\u1ea3i.<br \/>\n&#8211; L\u1ef1a ch\u1ecdn m\u00e1c theo m\u00f4i tr\u01b0\u1eddng (304 cho \u0111\u00f4 th\u1ecb, 316 cho ven bi\u1ec3n, duplex cho kh\u1eafc nghi\u1ec7t), c\u1ed9ng v\u1edbi thi\u1ebft k\u1ebf \u2013 gia c\u00f4ng chu\u1ea9n, s\u1ebd b\u1ea3o to\u00e0n th\u1ea9m m\u1ef9 v\u00e0 hi\u1ec7u qu\u1ea3 \u0111\u1ea7u t\u01b0 d\u00e0i h\u1ea1n.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c, b\u1ec1 m\u1eb7t v\u00e0 ph\u01b0\u01a1ng \u00e1n LCC t\u1ed1i \u01b0u cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c b\u00e1o gi\u00e1 t\u1ed1t v\u00e0 gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt s\u00e1t th\u1ef1c t\u1ebf Vi\u1ec7t Nam.<br \/>\nHotline: 0343.417.281<br \/>\nEmail: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n<p>T\u00e0i li\u1ec7u tham kh\u1ea3o:<br \/>\n&#8211; Worldstainless (ISSF): Stainless Steel and Sustainability; Recycling of Stainless Steel \u2013 https:\/\/www.worldstainless.org<br \/>\n&#8211; Nickel Institute: Guidelines for corrosion material selection; Stainless steel in architecture \u2013 https:\/\/nickelinstitute.org<br \/>\n&#8211; IMOA: Stainless steels in coastal environments; Preventing tea staining \u2013 https:\/\/imoa.info<br \/>\n&#8211; ISO 9223: Corrosion of metals and alloys \u2013 Corrosivity of atmospheres<br \/>\n&#8211; ASTM A240\/A276\/A554\/A380\/A967; ASTM G48<br \/>\n&#8211; FHWA\/State DOT Tech Briefs on Stainless Steel Reinforcement (t\u1ed5ng quan l\u1ee3i \u00edch v\u00f2ng \u0111\u1eddi)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u00ec sao inox b\u1ec1n h\u01a1n, gi\u1ea3m chu k\u1ef3 thay th\u1ebf 2\u20135 l\u1ea7n, c\u1eaft r\u00e1c th\u1ea3i c\u00f4ng tr\u00ecnh v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi. H\u01b0\u1edbng d\u1eabn ch\u1ecdn m\u00e1c ph\u00f9 h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng Vi\u1ec7t Nam.<\/p>\n","protected":false},"author":7,"featured_media":1011,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2491","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\/2491","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=2491"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2491\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1011"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}