{"id":2390,"date":"2026-08-02T12:39:51","date_gmt":"2026-08-02T05:39:51","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/"},"modified":"2026-08-02T12:39:51","modified_gmt":"2026-08-02T05:39:51","slug":"bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/","title":{"rendered":"B\u1ea3ng quy \u0111\u1ed5i m\u00e1c Inox t\u01b0\u01a1ng \u0111\u01b0\u01a1ng theo ti\u00eau chu\u1ea9n ASTM, JIS, DIN\/EN"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2390&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0110\u00e1nh gi\u00e1&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 b\u00ecnh ch\u1ecdn)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;B\u1ea3ng quy \u0111\u1ed5i m\u00e1c Inox t\u01b0\u01a1ng \u0111\u01b0\u01a1ng theo ti\u00eau chu\u1ea9n ASTM, JIS, DIN\\\/EN&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div 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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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Tong_quan_nhanh_ve_he_thong_ky_hieu_mac_inox\" >T\u1ed5ng quan nhanh v\u1ec1 h\u1ec7 th\u1ed1ng k\u00fd hi\u1ec7u m\u00e1c inox<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Cach_doc_cac_ky_hieu_tieu_bieu\" >C\u00e1ch \u0111\u1ecdc c\u00e1c k\u00fd hi\u1ec7u ti\u00eau bi\u1ec3u<\/a><\/li><\/ul><\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Nguyen_tac_%E2%80%9Ctuong_duong%E2%80%9D_va_luu_y_ky_thuat\" >Nguy\u00ean t\u1eafc \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d v\u00e0 l\u01b0u \u00fd k\u1ef9 thu\u1eadt<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Quy_doi_tuong_duong_chi_tiet_theo_nhom_thep_khong_gi\" >Quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng chi ti\u1ebft theo nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Austenitic_pho_thong_Cr-NiMo\" >Austenitic ph\u1ed5 th\u00f4ng (Cr-Ni\/Mo)<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Austenitic_Mn_cao_Cr-Mn-N_%E2%80%93_thay_the_kinh_te\" >Austenitic Mn cao (Cr-Mn-N) \u2013 thay th\u1ebf kinh t\u1ebf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Ferritic_Cr_tu_tinh_khong_chua_Ni_hoac_rat_thap\" >Ferritic (Cr, t\u1eeb t\u00ednh, kh\u00f4ng ch\u1ee9a Ni ho\u1eb7c r\u1ea5t th\u1ea5p)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Martensitic_cung_hoa_toi_ram\" >Martensitic (c\u1ee9ng h\u00f3a t\u00f4i ram)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Ket_tua_ben_PH_%E2%80%93_Precipitation_Hardening\" >K\u1ebft t\u1ee7a b\u1ec1n (PH \u2013 Precipitation Hardening)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#DuplexSuper_Duplex_pha_kep_ben_cao_khang_clorua\" >Duplex\/Super Duplex (pha k\u00e9p, b\u1ec1n cao, kh\u00e1ng clorua)<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#So_sanh_nhanh_thanh_phan_dac_trung_va_ham_y_ung_dung\" >So s\u00e1nh nhanh th\u00e0nh ph\u1ea7n \u0111\u1eb7c tr\u01b0ng v\u00e0 h\u00e0m \u00fd \u1ee9ng d\u1ee5ng<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Cach_chon_mac_phu_hop_cho_du_an_tai_Viet_Nam\" >C\u00e1ch ch\u1ecdn m\u00e1c ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Quy_trinh_quy_doi_va_kiem_tra_chung_chi_COCQ_MTC\" >Quy tr\u00ecnh quy \u0111\u1ed5i v\u00e0 ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 (CO\/CQ, MTC)<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Cac_luu_y_ky_thuat_thuong_gap_khi_quy_doi\" >C\u00e1c l\u01b0u \u00fd k\u1ef9 thu\u1eadt th\u01b0\u1eddng g\u1eb7p khi quy \u0111\u1ed5i<\/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\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#FAQ_%E2%80%93_Giai_dap_nhanh\" >FAQ \u2013 Gi\u1ea3i \u0111\u00e1p nhanh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Vi_du_thuc_te_ap_dung_quy_doi\" >V\u00ed d\u1ee5 th\u1ef1c t\u1ebf \u00e1p d\u1ee5ng quy \u0111\u1ed5i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Nguon_tham_khao_tieu_chuan_va_tai_lieu_ky_thuat\" >Ngu\u1ed3n tham kh\u1ea3o ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/inoxcuongthinh.com\/bang-quy-doi-mac-inox-tuong-duong-theo-tieu-chuan-astm-jis-din-en\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/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-tong-quan-nhanh-ve-he-thong-ky-hieu-mac-inox\">T\u1ed5ng quan nhanh v\u1ec1 h\u1ec7 th\u1ed1ng k\u00fd hi\u1ec7u m\u00e1c inox<\/a><\/li>\n<li><a href=\"#toc-1-nguyen-tac-tuong-duong-va-luu-y-ky-thuat\">Nguy\u00ean t\u1eafc \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d v\u00e0 l\u01b0u \u00fd k\u1ef9 thu\u1eadt<\/a><\/li>\n<li><a href=\"#toc-2-quy-doi-tuong-duong-chi-tiet-theo-nhom-thep-khong-\">Quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng chi ti\u1ebft theo nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9<\/a><\/li>\n<li><a href=\"#toc-3-so-sanh-nhanh-thanh-phan-dac-trung-va-ham-y-ung-du\">So s\u00e1nh nhanh th\u00e0nh ph\u1ea7n \u0111\u1eb7c tr\u01b0ng v\u00e0 h\u00e0m \u00fd \u1ee9ng d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-4-cach-chon-mac-phu-hop-cho-du-an-tai-viet-nam\">C\u00e1ch ch\u1ecdn m\u00e1c ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-5-quy-trinh-quy-doi-va-kiem-tra-chung-chi-cocq-mtc\">Quy tr\u00ecnh quy \u0111\u1ed5i v\u00e0 ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 (CO\/CQ, MTC)<\/a><\/li>\n<li><a href=\"#toc-6-cac-luu-y-ky-thuat-thuong-gap-khi-quy-doi\">C\u00e1c l\u01b0u \u00fd k\u1ef9 thu\u1eadt th\u01b0\u1eddng g\u1eb7p khi quy \u0111\u1ed5i<\/a><\/li>\n<li><a href=\"#toc-7-faq-giai-dap-nhanh\">FAQ \u2013 Gi\u1ea3i \u0111\u00e1p nhanh<\/a><\/li>\n<li><a href=\"#toc-8-vi-du-thuc-te-ap-dung-quy-doi\">V\u00ed d\u1ee5 th\u1ef1c t\u1ebf \u00e1p d\u1ee5ng quy \u0111\u1ed5i<\/a><\/li>\n<li><a href=\"#toc-9-nguon-tham-khao-tieu-chuan-va-tai-lieu-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt<\/a><\/li>\n<li><a href=\"#toc-10-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong thi\u1ebft k\u1ebf, mua s\u1eafm v\u00e0 ki\u1ec3m \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng inox, k\u1ef9 s\u01b0 th\u01b0\u1eddng ph\u1ea3i \u0111\u1ed1i chi\u1ebfu m\u00e1c gi\u1eefa c\u00e1c h\u1ec7 ti\u00eau chu\u1ea9n kh\u00e1c nhau. B\u00e0i vi\u1ebft n\u00e0y l\u00e0 h\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng gi\u1eefa c\u00e1c m\u00e1c inox theo ASTM (UNS\/AISI), JIS v\u00e0 DIN\/EN, \u0111i k\u00e8m nguy\u00ean t\u1eafc s\u1eed d\u1ee5ng an to\u00e0n, v\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u00e0 c\u00e1ch \u0111\u1ecdc CO\/CQ. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong b\u1ee9c tranh l\u1edbn v\u1ec1 h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n v\u00e0 ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng inox (ASTM, JIS, CO\/CQ), nh\u01b0ng b\u00e0i vi\u1ebft t\u1eadp trung v\u00e0o quy \u0111\u1ed5i m\u00e1c \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng ngay.<\/p>\n<h2 id=\"toc-0-tong-quan-nhanh-ve-he-thong-ky-hieu-mac-inox\"><span class=\"ez-toc-section\" id=\"Tong_quan_nhanh_ve_he_thong_ky_hieu_mac_inox\"><\/span>T\u1ed5ng quan nhanh v\u1ec1 h\u1ec7 th\u1ed1ng k\u00fd hi\u1ec7u m\u00e1c inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; ASTM\/UNS (M\u1ef9): T\u00ean m\u00e1c th\u01b0\u1eddng d\u00f9ng theo AISI l\u1ecbch s\u1eed (v\u00ed d\u1ee5 304, 316) v\u00e0 \u0111\u1ecbnh danh ch\u00ednh x\u00e1c b\u1eb1ng m\u00e3 UNS (v\u00ed d\u1ee5 S30400, S31603). S\u1ea3n ph\u1ea9m d\u1ea1ng t\u1ea5m\/cu\u1ed9n theo ASTM A240\/A480; thanh theo A276; \u1ed1ng h\u00e0n\/\u0111\u00fac theo A312\/A269\/A213\u2026<br \/>\n&#8211; JIS (Nh\u1eadt): K\u00fd hi\u1ec7u b\u1eaft \u0111\u1ea7u b\u1eb1ng SUS cho th\u00e9p kh\u00f4ng g\u1ec9 (v\u00ed d\u1ee5 SUS304, SUS316L). Ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m: JIS G4304 (t\u1ea5m c\u00e1n n\u00f3ng), G4305 (t\u1ea5m\/cu\u1ed9n c\u00e1n ngu\u1ed9i), G4303 (thanh), G3463\/G3459 (\u1ed1ng).<br \/>\n&#8211; DIN\/EN (Ch\u00e2u \u00c2u): D\u00f9ng s\u1ed1 v\u1eadt li\u1ec7u (Material No.) nh\u01b0 1.4301 v\u00e0 t\u00ean th\u00e9p XxCrNi\u2026 theo EN 10088. S\u1ea3n ph\u1ea9m: EN 10088-2 (d\u1ea1ng d\u1eb9t), EN 10088-3 (thanh), EN 10217-7 (\u1ed1ng h\u00e0n), EN 10296-2 (\u1ed1ng c\u01a1 kh\u00ed).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cach_doc_cac_ky_hieu_tieu_bieu\"><\/span>C\u00e1ch \u0111\u1ecdc c\u00e1c k\u00fd hi\u1ec7u ti\u00eau bi\u1ec3u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 1.4301 = EN s\u1ed1 v\u1eadt li\u1ec7u cho inox t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 304; t\u00ean th\u00e9p X5CrNi18-10 bi\u1ec3u th\u1ecb kho\u1ea3ng 18% Cr, 10% Ni, \u201cX5\u201d ~ 0,05% C.<br \/>\n&#8211; SUS304 = JIS cho 304.<br \/>\n&#8211; S30400 = UNS (ASTM) t\u01b0\u01a1ng \u1ee9ng 304; S30403 cho 304L.<br \/>\n&#8211; V\u1edbi c\u00e1c m\u00e1c \u1ed5n \u0111\u1ecbnh h\u00f3a: 321 (Ti) \u2194 EN 1.4541; 347 (Nb) \u2194 EN 1.4550.<\/p>\n<h2 id=\"toc-1-nguyen-tac-tuong-duong-va-luu-y-ky-thuat\"><span class=\"ez-toc-section\" id=\"Nguyen_tac_%E2%80%9Ctuong_duong%E2%80%9D_va_luu_y_ky_thuat\"><\/span>Nguy\u00ean t\u1eafc \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d v\u00e0 l\u01b0u \u00fd k\u1ef9 thu\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; \u201cT\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d ch\u1ee7 y\u1ebfu d\u1ef1a tr\u00ean th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc (theo ISO 15510, EN 10088, ASTM), \u0111\u00f4i khi c\u00f3 ch\u00eanh l\u1ec7ch nh\u1ecf v\u1ec1 C, N, Mo, Ti\/Nb.<br \/>\n&#8211; Thu\u1ed9c t\u00ednh c\u01a1 h\u1ecdc v\u00e0 t\u00ednh h\u00e0n c\u00f3 th\u1ec3 kh\u00e1c \u0111\u00e1ng k\u1ec3 do:<br \/>\n  &#8211; H\u00e0m l\u01b0\u1ee3ng C (bi\u1ebfn th\u1ec3 L) v\u00e0 N (EN th\u01b0\u1eddng cho N cao h\u01a1n \u0111\u1ec3 t\u0103ng b\u1ec1n).<br \/>\n  &#8211; Y\u00eau c\u1ea7u c\u01a1 t\u00ednh theo t\u1eebng ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m.<br \/>\n  &#8211; Luy\u1ec7n kim v\u00e0 quy tr\u00ecnh \u1ee7\/gi\u1ea3m c\u00e1n gi\u1eefa nh\u00e0 s\u1ea3n xu\u1ea5t.<br \/>\n&#8211; V\u00ec v\u1eady: lu\u00f4n x\u00e1c nh\u1eadn theo nhu c\u1ea7u th\u1ef1c t\u1ebf (\u0103n m\u00f2n, nhi\u1ec7t, c\u01a1 t\u00ednh) v\u00e0 ki\u1ec3m tra Mill Test Certificate (MTC 3.1) thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o t\u00ean m\u00e1c.<\/p>\n<h2 id=\"toc-2-quy-doi-tuong-duong-chi-tiet-theo-nhom-thep-khong-\"><span class=\"ez-toc-section\" id=\"Quy_doi_tuong_duong_chi_tiet_theo_nhom_thep_khong_gi\"><\/span>Quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng chi ti\u1ebft theo nh\u00f3m th\u00e9p kh\u00f4ng g\u1ec9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u01b0u \u00fd: D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c c\u1eb7p t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i trong k\u1ef9 ngh\u1ec7. M\u1ed9t s\u1ed1 m\u00e1c Mn cao (201\/202) c\u00f3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng EN g\u1ea7n \u0111\u00fang (\u2248), c\u1ea7n \u0111\u00e1nh gi\u00e1 theo th\u00e0nh ph\u1ea7n tr\u00ean CO\/CQ.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Austenitic_pho_thong_Cr-NiMo\"><\/span>Austenitic ph\u1ed5 th\u00f4ng (Cr-Ni\/Mo)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 301: ASTM\/UNS S30100 (AISI 301) \u2014 JIS SUS301 \u2014 DIN\/EN 1.4310 (X10CrNi18-8). Ghi ch\u00fa: \u0111\u1ed9 b\u1ec1n cao sau gia c\u00f4ng ngu\u1ed9i.<br \/>\n&#8211; 304: ASTM\/UNS S30400 (AISI 304) \u2014 JIS SUS304 \u2014 DIN\/EN 1.4301 (X5CrNi18-10). \u1ee8ng d\u1ee5ng: b\u1ed3n b\u1ec3, thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m, ki\u1ebfn tr\u00fac trong nh\u00e0.<br \/>\n&#8211; 304L: ASTM\/UNS S30403 \u2014 JIS SUS304L \u2014 DIN\/EN 1.4307 (X2CrNi18-9). Ghi ch\u00fa: C th\u1ea5p, h\u00e0n t\u1ed1t, kh\u00e1ng \u0103n m\u00f2n m\u1ed1i h\u00e0n.<br \/>\n&#8211; 304H: ASTM\/UNS S30409 \u2014 JIS SUS304H \u2014 DIN\/EN 1.4948. Ghi ch\u00fa: d\u00f9ng nhi\u1ec7t \u0111\u1ed9 cao.<br \/>\n&#8211; 316: ASTM\/UNS S31600 (AISI 316) \u2014 JIS SUS316 \u2014 DIN\/EN 1.4401 (X5CrNiMo17-12-2). \u1ee8ng d\u1ee5ng: m\u00f4i tr\u01b0\u1eddng clorua nh\u1eb9, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t.<br \/>\n&#8211; 316L: ASTM\/UNS S31603 \u2014 JIS SUS316L \u2014 DIN\/EN 1.4404 (X2CrNiMo17-12-2). Ghi ch\u00fa: h\u00e0n t\u1ed1t, d\u00f9ng v\u00f9ng ven bi\u1ec3n, x\u1eed l\u00fd n\u01b0\u1edbc m\u1eb7n nh\u1eb9.<br \/>\n&#8211; 316Ti: ASTM\/UNS S31635 \u2014 JIS (\u00edt d\u00f9ng) \u2014 DIN\/EN 1.4571 (X6CrNiMoTi17-12-2). Ghi ch\u00fa: \u1ed5n \u0111\u1ecbnh h\u00f3a Ti cho nhi\u1ec7t \u0111\u1ed9 cao.<br \/>\n&#8211; 321: ASTM\/UNS S32100 \u2014 JIS SUS321 \u2014 DIN\/EN 1.4541 (X6CrNiTi18-10). Ghi ch\u00fa: \u1ed5n \u0111\u1ecbnh Ti, ch\u1ed1ng \u0103n m\u00f2n tinh gi\u1edbi \u1edf nhi\u1ec7t cao.<br \/>\n&#8211; 347: ASTM\/UNS S34700 \u2014 JIS SUS347 \u2014 DIN\/EN 1.4550 (X6CrNiNb18-10). Ghi ch\u00fa: \u1ed5n \u0111\u1ecbnh Nb.<br \/>\n&#8211; 309S: ASTM\/UNS S30908 \u2014 JIS SUS309S \u2014 DIN\/EN 1.4828. Ghi ch\u00fa: ch\u1ecbu nhi\u1ec7t t\u1ed1t.<br \/>\n&#8211; 310S: ASTM\/UNS S31008 \u2014 JIS SUS310S \u2014 DIN\/EN 1.4845 (X8CrNi25-21). Ghi ch\u00fa: ch\u1ecbu nhi\u1ec7t r\u1ea5t t\u1ed1t.<br \/>\n&#8211; 904L: ASTM\/UNS N08904 \u2014 JIS SUS890L\/904L \u2014 DIN\/EN 1.4539 (X1NiCrMoCu25-20-5). Ghi ch\u00fa: si\u00eau h\u1ee3p kim Mo+Cu, ch\u1ecbu clorua m\u1ea1nh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Austenitic_Mn_cao_Cr-Mn-N_%E2%80%93_thay_the_kinh_te\"><\/span>Austenitic Mn cao (Cr-Mn-N) \u2013 thay th\u1ebf kinh t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 201: ASTM\/UNS S20100 (AISI 201) \u2014 JIS SUS201 \u2014 DIN\/EN \u2248 1.4372 (X12CrMnNiN17-7-5). Ghi ch\u00fa: Ni th\u1ea5p, Mn+N cao; kh\u00e1ng \u0103n m\u00f2n k\u00e9m 304, d\u1ec5 b\u1ecb r\u1ed7 trong m\u00f4i tr\u01b0\u1eddng clorua.<br \/>\n&#8211; 202: ASTM\/UNS S20200 (AISI 202) \u2014 JIS SUS202 \u2014 DIN\/EN \u2248 1.4373. Ghi ch\u00fa: t\u01b0\u01a1ng t\u1ef1 201 nh\u01b0ng Ni\/Mn kh\u00e1c; c\u1ea7n ki\u1ec3m tra th\u00e0nh ph\u1ea7n chi ti\u1ebft.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ferritic_Cr_tu_tinh_khong_chua_Ni_hoac_rat_thap\"><\/span>Ferritic (Cr, t\u1eeb t\u00ednh, kh\u00f4ng ch\u1ee9a Ni ho\u1eb7c r\u1ea5t th\u1ea5p)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 409\/409L: ASTM\/UNS S40900\/S40910 \u2014 JIS SUS409\/SUS409L \u2014 DIN\/EN 1.4512 (X2CrTi12). \u1ee8ng d\u1ee5ng: \u1ed1ng x\u1ea3, m\u00f4i tr\u01b0\u1eddng kh\u00f4.<br \/>\n&#8211; 430: ASTM\/UNS S43000 (AISI 430) \u2014 JIS SUS430 \u2014 DIN\/EN 1.4016 (X6Cr17). \u1ee8ng d\u1ee5ng: trang tr\u00ed n\u1ed9i th\u1ea5t, thi\u1ebft b\u1ecb gia d\u1ee5ng, m\u00f4i tr\u01b0\u1eddng kh\u00f4.<br \/>\n&#8211; 434: ASTM\/UNS S43400 \u2014 JIS SUS434 \u2014 DIN\/EN 1.4113 (X6CrMo17-1). Ghi ch\u00fa: th\u00eam Mo c\u1ea3i thi\u1ec7n kh\u00e1ng r\u1ed7 nh\u1eb9.<br \/>\n&#8211; 439: ASTM\/UNS S43035\/S43036 (th\u01b0\u1eddng g\u1ecdi 439) \u2014 JIS SUS439 \u2014 DIN\/EN 1.4510 (X3CrTi17). Ghi ch\u00fa: \u1ed5n \u0111\u1ecbnh Ti, h\u00e0n t\u1ed1t, d\u00f9ng \u1ed1ng x\u1ea3, b\u1ed3n n\u01b0\u1edbc n\u00f3ng.<br \/>\n&#8211; 441: ASTM\/UNS S44100 \u2014 JIS SUS441 \u2014 DIN\/EN 1.4509 (X2CrTiNb18). Ghi ch\u00fa: \u1ed5n \u0111\u1ecbnh Ti\/Nb, \u0111\u1ecbnh h\u00ecnh t\u1ed1t.<br \/>\n&#8211; 444: ASTM\/UNS S44400 \u2014 JIS SUS444 \u2014 DIN\/EN 1.4521 (X2CrMoTi18-2). Ghi ch\u00fa: g\u1ea7n 316 v\u1ec1 kh\u00e1ng r\u1ed7 trong n\u01b0\u1edbc clorua nh\u1edd 2% Mo.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Martensitic_cung_hoa_toi_ram\"><\/span>Martensitic (c\u1ee9ng h\u00f3a t\u00f4i ram)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 410: ASTM\/UNS S41000 (AISI 410) \u2014 JIS SUS410 \u2014 DIN\/EN 1.4006 (X12Cr13). \u1ee8ng d\u1ee5ng: tr\u1ee5c, bul\u00f4ng, chi ti\u1ebft c\u01a1 kh\u00ed c\u1ea7n \u0111\u1ed9 b\u1ec1n.<br \/>\n&#8211; 420: ASTM\/UNS S42000 (AISI 420) \u2014 JIS SUS420J1\/J2 \u2014 DIN\/EN 1.4021\/1.4028 (X20Cr13\/X30Cr13). \u1ee8ng d\u1ee5ng: dao c\u1ee5, khu\u00f4n.<br \/>\n&#8211; 431: ASTM\/UNS S43100 \u2014 JIS SUS431 \u2014 DIN\/EN 1.4057 (X17CrNi16-2). Ghi ch\u00fa: th\u00eam Ni, \u0111\u1ed9 b\u1ec1n v\u00e0 dai t\u1ed1t h\u01a1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ket_tua_ben_PH_%E2%80%93_Precipitation_Hardening\"><\/span>K\u1ebft t\u1ee7a b\u1ec1n (PH \u2013 Precipitation Hardening)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 17-4PH: ASTM\/UNS S17400 (AISI 630) \u2014 JIS SUS630 \u2014 DIN\/EN 1.4542 (X5CrNiCuNb16-4). \u1ee8ng d\u1ee5ng: tr\u1ee5c b\u01a1m, linh ki\u1ec7n h\u00e0ng h\u1ea3i, d\u1ea7u kh\u00ed.<br \/>\n&#8211; 15-5PH: ASTM\/UNS S15500 \u2014 JIS (kh\u00f4ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng tr\u1ef1c ti\u1ebfp) \u2014 DIN\/EN 1.4545 (x\u1ea5p x\u1ec9). Ghi ch\u00fa: y\u00eau c\u1ea7u CO\/CQ \u0111\u1ec3 x\u00e1c nh\u1eadn.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"DuplexSuper_Duplex_pha_kep_ben_cao_khang_clorua\"><\/span>Duplex\/Super Duplex (pha k\u00e9p, b\u1ec1n cao, kh\u00e1ng clorua)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 2205: ASTM\/UNS S32205\/S31803 \u2014 JIS SUS329J3L \u2014 DIN\/EN 1.4462 (X2CrNiMoN22-5-3). \u1ee8ng d\u1ee5ng: b\u1ed3n \u00e1p l\u1ef1c, trao \u0111\u1ed5i nhi\u1ec7t, n\u01b0\u1edbc bi\u1ec3n.<br \/>\n&#8211; 2507: ASTM\/UNS S32750 \u2014 JIS SUS329J4L \u2014 DIN\/EN 1.4410 (X2CrNiMoN25-7-4). \u1ee8ng d\u1ee5ng: n\u01b0\u1edbc bi\u1ec3n, khai th\u00e1c d\u1ea7u kh\u00ed, b\u1ed1c h\u01a1i mu\u1ed1i.<br \/>\n&#8211; 2304 (Lean Duplex): ASTM\/UNS S32304 \u2014 JIS (\u00edt d\u00f9ng) \u2014 DIN\/EN 1.4362. \u1ee8ng d\u1ee5ng: k\u1ebft c\u1ea5u, b\u1ed3n n\u01b0\u1edbc, m\u00f4i tr\u01b0\u1eddng clorua v\u1eeba.<\/p>\n<h2 id=\"toc-3-so-sanh-nhanh-thanh-phan-dac-trung-va-ham-y-ung-du\"><span class=\"ez-toc-section\" id=\"So_sanh_nhanh_thanh_phan_dac_trung_va_ham_y_ung_dung\"><\/span>So s\u00e1nh nhanh th\u00e0nh ph\u1ea7n \u0111\u1eb7c tr\u01b0ng v\u00e0 h\u00e0m \u00fd \u1ee9ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 304 vs 304L: 304L c\u00f3 C \u2264 0,03% gi\u00fap h\u00e0n kh\u00f4ng c\u1ea7n x\u1eed l\u00fd nhi\u1ec7t, gi\u1ea3m nh\u1ea1y c\u1ea3m \u0103n m\u00f2n tinh gi\u1edbi. C\u01a1 t\u00ednh th\u1ea5p h\u01a1n ch\u00fat so v\u1edbi 304 chu\u1ea9n.<br \/>\n&#8211; 316\/316L: th\u00eam Mo (~2%) t\u0103ng kh\u00e1ng r\u1ed7\/\u0103n k\u1ebd trong m\u00f4i tr\u01b0\u1eddng clorua. D\u00f9ng ngo\u00e0i tr\u1eddi, ven bi\u1ec3n, x\u1eed l\u00fd n\u01b0\u1edbc. 316L ph\u00f9 h\u1ee3p h\u00e0n.<br \/>\n&#8211; 201\/202: Ni th\u1ea5p, thay b\u1eb1ng Mn+N. Gi\u00e1 t\u1ed1t nh\u01b0ng kh\u00e1ng \u0103n m\u00f2n k\u00e9m h\u01a1n 304, kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n\/khang nghi\u1ec7t.<br \/>\n&#8211; Ferritic 430\/441\/444: t\u1eeb t\u00ednh, \u0111\u1ecbnh h\u00ecnh t\u1ed1t, chi ph\u00ed th\u1ea5p. 444 (c\u00f3 Mo) g\u1ea7n 316 v\u1ec1 ch\u1ed1ng r\u1ed7 trong n\u01b0\u1edbc clorua trung b\u00ecnh.<br \/>\n&#8211; 321\/347: th\u00eam Ti\/Nb \u1ed5n \u0111\u1ecbnh h\u00f3a cacbit, d\u00f9ng nhi\u1ec7t \u0111\u1ed9 450\u2013850\u00b0C \u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n tinh gi\u1edbi.<\/p>\n<h2 id=\"toc-4-cach-chon-mac-phu-hop-cho-du-an-tai-viet-nam\"><span class=\"ez-toc-section\" id=\"Cach_chon_mac_phu_hop_cho_du_an_tai_Viet_Nam\"><\/span>C\u00e1ch ch\u1ecdn m\u00e1c ph\u00f9 h\u1ee3p cho d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m\/\u0111\u1ed3 u\u1ed1ng: 304\/304L theo ASTM A240 ho\u1eb7c JIS G4304\/4305; y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t 2B\/BA; c\u00f3 CO\/CQ k\u00e8m ch\u1ee9ng nh\u1eadn v\u1ec7 sinh (n\u1ebfu c\u1ea7n).<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb n\u1ed9i \u0111\u1ecba: 304L; n\u1ebfu v\u00f9ng ven bi\u1ec3n (<5 km b\u1edd bi\u1ec3n) \u01b0u ti\u00ean 316L. V\u1edbi chi ph\u00ed h\u1ea1n ch\u1ebf, c\u00e2n nh\u1eafc 444 cho h\u1ea1 t\u1ea7ng n\u01b0\u1edbc s\u1ea1ch.\n- H\u00f3a ch\u1ea5t\/clorua cao: 316L; n\u1ebfu pitting risk cao (Cl- > 500 ppm) ch\u1ecdn 904L, 2205 ho\u1eb7c 2507 t\u00f9y n\u1ed3ng \u0111\u1ed9 v\u00e0 nhi\u1ec7t \u0111\u1ed9.<br \/>\n&#8211; Nhi\u1ec7t \u0111\u1ed9 cao: 321\/347 cho 450\u2013850\u00b0C; 309S\/310S cho \u0111\u1ebfn ~1050\u00b0C (theo \u1ee9ng d\u1ee5ng).<br \/>\n&#8211; K\u1ebft c\u1ea5u c\u01a1 kh\u00ed c\u1ea7n b\u1ec1n c\u1ee9ng: 410\/420\/431, 17-4PH; l\u01b0u \u00fd x\u1eed l\u00fd nhi\u1ec7t v\u00e0 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n.<\/p>\n<h2 id=\"toc-5-quy-trinh-quy-doi-va-kiem-tra-chung-chi-cocq-mtc\"><span class=\"ez-toc-section\" id=\"Quy_trinh_quy_doi_va_kiem_tra_chung_chi_COCQ_MTC\"><\/span>Quy tr\u00ecnh quy \u0111\u1ed5i v\u00e0 ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 (CO\/CQ, MTC)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh ti\u00eau chu\u1ea9n \u0111\u1eb7t h\u00e0ng. V\u00ed d\u1ee5: \u201cASTM A240 Type 316L, 2B, t=3.0 mm\u201d.<br \/>\n&#8211; B\u01b0\u1edbc 2: Tra t\u01b0\u01a1ng \u0111\u01b0\u01a1ng n\u1ebfu nh\u00e0 cung c\u1ea5p b\u00e1o JIS\/DIN. V\u00ed d\u1ee5 316L \u2194 SUS316L \u2194 1.4404.<br \/>\n&#8211; B\u01b0\u1edbc 3: Ki\u1ec3m tra CO\/CQ v\u00e0 MTC 3.1:<br \/>\n  &#8211; Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc: Cr, Ni, Mo, C (L \u2264 0,03%), N (\u0111\u1eb7c bi\u1ec7t v\u1edbi EN\/duplex).<br \/>\n  &#8211; C\u01a1 t\u00ednh: Rp0.2, Rm, A% theo ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m t\u01b0\u01a1ng \u1ee9ng (ASTM A240\/EN 10088-2).<br \/>\n  &#8211; Ngu\u1ed3n g\u1ed1c nhi\u1ec7t luy\u1ec7n, l\u00f4 s\u1ed1, tr\u1ea1ng th\u00e1i b\u1ec1 m\u1eb7t.<br \/>\n&#8211; B\u01b0\u1edbc 4: \u0110\u1ed1i chi\u1ebfu \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c (\u0103n m\u00f2n, nhi\u1ec7t, h\u00e0n), c\u1ea7n thi\u1ebft c\u00f3 th\u00eam th\u1eed pitting (ASTM G48) ho\u1eb7c ki\u1ec3m tra li\u00ean h\u1ea1t (ASTM A262) v\u1edbi \u1ee9ng d\u1ee5ng nghi\u00eam ng\u1eb7t.<\/p>\n<h2 id=\"toc-6-cac-luu-y-ky-thuat-thuong-gap-khi-quy-doi\"><span class=\"ez-toc-section\" id=\"Cac_luu_y_ky_thuat_thuong_gap_khi_quy_doi\"><\/span>C\u00e1c l\u01b0u \u00fd k\u1ef9 thu\u1eadt th\u01b0\u1eddng g\u1eb7p khi quy \u0111\u1ed5i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; EN nhi\u1ec1u khi cho ph\u00e9p N cao h\u01a1n 304\/316 \u0111\u1ec3 t\u0103ng b\u1ec1n, n\u00ean c\u01a1 t\u00ednh c\u00f3 th\u1ec3 v\u01b0\u1ee3t ASTM c\u00f9ng m\u00e1c; \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c ho\u1eb7c c\u00f3 l\u1ee3i.<br \/>\n&#8211; 304H\/316Ti\/321\/347 kh\u00f4ng quy \u0111\u1ed5i 1:1 v\u1edbi bi\u1ebfn th\u1ec3 \u201cL\u201d; ph\u1ea3i theo \u0111\u00fang m\u1ee5c \u0111\u00edch (nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c h\u00e0n).<br \/>\n&#8211; 201\/202 sang EN 1.4372\/1.4373 l\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng g\u1ea7n \u0111\u00fang; th\u00e0nh ph\u1ea7n bi\u1ebfn \u0111\u1ed9ng theo nh\u00e0 s\u1ea3n xu\u1ea5t. Lu\u00f4n ki\u1ec3m tra Mo, Ni, Mn, N th\u1ef1c t\u1ebf tr\u00ean MTC.<br \/>\n&#8211; V\u1edbi 17-4PH (SUS630\/1.4542), c\u01a1 t\u00ednh ph\u1ee5 thu\u1ed9c \u0111i\u1ec1u ki\u1ec7n h\u00f3a b\u1ec1n (H900, H1025\u2026). Khi quy \u0111\u1ed5i ph\u1ea3i n\u00eau r\u00f5 \u0111i\u1ec1u ki\u1ec7n.<\/p>\n<h2 id=\"toc-7-faq-giai-dap-nhanh\"><span class=\"ez-toc-section\" id=\"FAQ_%E2%80%93_Giai_dap_nhanh\"><\/span>FAQ \u2013 Gi\u1ea3i \u0111\u00e1p nhanh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 201 c\u00f3 thay \u0111\u01b0\u1ee3c 304 kh\u00f4ng? Kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho m\u00f4i tr\u01b0\u1eddng \u1ea9m, h\u00f3a ch\u1ea5t nh\u1eb9 ho\u1eb7c ven bi\u1ec3n. 201 ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t kh\u00f4, trang tr\u00ed trong nh\u00e0.<br \/>\n&#8211; 304 v\u00e0 304L kh\u00e1c g\u00ec? Kh\u00e1c ch\u1ee7 y\u1ebfu \u1edf C. 304L h\u00e0n t\u1ed1t h\u01a1n, gi\u1ea3m nguy c\u01a1 \u0103n m\u00f2n tinh gi\u1edbi, c\u01a1 t\u00ednh th\u1ea5p h\u01a1n ch\u00fat.<br \/>\n&#8211; 316 v\u00e0 316L d\u00f9ng \u1edf \u0111\u00e2u? D\u00f9ng trong m\u00f4i tr\u01b0\u1eddng clorua ho\u1eb7c h\u00f3a ch\u1ea5t. 316L \u01b0u ti\u00ean khi c\u00f3 h\u00e0n.<br \/>\n&#8211; 430 c\u00f3 b\u1ecb g\u1ec9 kh\u00f4ng? 430 c\u00f3 th\u1ec3 b\u1ecb \u00f4xy h\u00f3a n\u00e2u trong m\u00f4i tr\u01b0\u1eddng \u1ea9m\/m\u1eb7n; d\u00f9ng t\u1ed1t trong nh\u00e0 kh\u00f4. Ngo\u00e0i tr\u1eddi\/ven bi\u1ec3n n\u00ean ch\u1ecdn 304L\/316L\/444.<br \/>\n&#8211; 321 c\u00f3 \u201ct\u1ed1t h\u01a1n\u201d 304 kh\u00f4ng? Kh\u00f4ng tuy\u1ec7t \u0111\u1ed1i. 321 ch\u1ec9 t\u1ed1t h\u01a1n 304 \u1edf d\u1ea3i nhi\u1ec7t cao nh\u1edd Ti \u1ed5n \u0111\u1ecbnh; trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n th\u00f4ng th\u01b0\u1eddng, 304\/304L l\u00e0 \u0111\u1ee7.<\/p>\n<h2 id=\"toc-8-vi-du-thuc-te-ap-dung-quy-doi\"><span class=\"ez-toc-section\" id=\"Vi_du_thuc_te_ap_dung_quy_doi\"><\/span>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf \u00e1p d\u1ee5ng quy \u0111\u1ed5i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u1ef1 \u00e1n b\u1ed3n ch\u1ee9a n\u01b0\u1edbc RO t\u1ea1i H\u1ea3i Ph\u00f2ng: Y\u00eau c\u1ea7u 316L (ASTM A240). Nh\u00e0 cung c\u1ea5p b\u00e1o 1.4404 (EN) ho\u1eb7c SUS316L (JIS). \u0110\u00e2y l\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c; ki\u1ec3m tra MTC x\u00e1c nh\u1eadn Mo ~2%, C \u22640,03%.<br \/>\n&#8211; K\u1ebft c\u1ea5u lan can chung c\u01b0 g\u1ea7n bi\u1ec3n \u0110\u00e0 N\u1eb5ng: D\u00f9ng 304 d\u1ec5 \u1ed1 r\u1ec9 do mu\u1ed1i; quy \u0111\u1ed5i sang 316L\/1.4404 ho\u1eb7c 444\/1.4521 \u0111\u1ec3 t\u0103ng b\u1ec1n r\u1ed7.<br \/>\n&#8211; \u0110\u01b0\u1eddng \u1ed1ng CIP nh\u00e0 m\u00e1y s\u1eefa: Ch\u1ec9 \u0111\u1ecbnh ASTM A270 TP304L; n\u1ebfu \u0111\u1ec1 xu\u1ea5t EN 1.4307 (EN 10217-7), c\u1ea7n ki\u1ec3m tra b\u1ec1 m\u1eb7t trong, \u0111\u1ed9 nh\u00e1m v\u00e0 v\u1ec7 sinh th\u1ef1c ph\u1ea9m.<\/p>\n<h2 id=\"toc-9-nguon-tham-khao-tieu-chuan-va-tai-lieu-ky-thuat\"><span class=\"ez-toc-section\" id=\"Nguon_tham_khao_tieu_chuan_va_tai_lieu_ky_thuat\"><\/span>Ngu\u1ed3n tham kh\u1ea3o ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; ASTM A240\/A480 (t\u1ea5m\/cu\u1ed9n), ASTM A276 (thanh), ASTM A312\/A269 (\u1ed1ng): www.astm.org<br \/>\n&#8211; JIS G4303\/G4304\/G4305 (th\u00e9p kh\u00f4ng g\u1ec9 thanh, t\u1ea5m c\u00e1n n\u00f3ng\/ngu\u1ed9i), JIS G3459\/G3463 (\u1ed1ng): www.jsa.or.jp<br \/>\n&#8211; EN 10088-1\/2\/3 (th\u00e0nh ph\u1ea7n v\u00e0 s\u1ea3n ph\u1ea9m th\u00e9p kh\u00f4ng g\u1ec9), EN 10217-7, EN 10296-2: www.en-standard.eu<br \/>\n&#8211; ISO 15510: Stainless steels \u2014 Chemical composition<br \/>\n&#8211; Outokumpu Stainless Steel Handbook; Acerinox\/ATI datasheets (b\u1ea3ng quy \u0111\u1ed5i v\u00e0 d\u1eef li\u1ec7u \u0103n m\u00f2n)<br \/>\n&#8211; Nickel Institute Technical Series (kh\u00e1ng \u0103n m\u00f2n c\u1ee7a c\u00e1c m\u00e1c Cr-Ni-Mo)<\/p>\n<h2 id=\"toc-10-ket-luan\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u00e1c m\u00e1c inox c\u00f3 th\u1ec3 quy \u0111\u1ed5i \u0111\u00e1ng tin c\u1eady gi\u1eefa ASTM\/UNS, JIS v\u00e0 DIN\/EN khi d\u1ef1a tr\u00ean th\u00e0nh ph\u1ea7n ti\u00eau chu\u1ea9n (ISO 15510, EN 10088, ASTM) v\u00e0 ch\u1ee9ng ch\u1ec9 MTC 3.1.<br \/>\n&#8211; Quy \u0111\u1ed5i ph\u1ed5 bi\u1ebfn: 304 \u2194 SUS304 \u2194 1.4301; 304L \u2194 SUS304L \u2194 1.4307; 316 \u2194 SUS316 \u2194 1.4401; 316L \u2194 SUS316L \u2194 1.4404; 430 \u2194 SUS430 \u2194 1.4016; 410 \u2194 SUS410 \u2194 1.4006; 321 \u2194 SUS321 \u2194 1.4541; 2205 \u2194 SUS329J3L \u2194 1.4462; 17-4PH \u2194 SUS630 \u2194 1.4542.<br \/>\n&#8211; Lu\u00f4n xem \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d l\u00e0 xu\u1ea5t ph\u00e1t \u0111i\u1ec3m; quy\u1ebft \u0111\u1ecbnh cu\u1ed1i c\u00f9ng d\u1ef1a tr\u00ean y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng (\u0103n m\u00f2n, nhi\u1ec7t, c\u01a1 t\u00ednh, h\u00e0n) v\u00e0 x\u00e1c nh\u1eadn CO\/CQ.<br \/>\nC\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c inox \u0111\u00fang cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1ed5ng h\u1ee3p quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng m\u00e1c inox ph\u1ed5 bi\u1ebfn (201, 304\/304L, 316\/316L, 430, 410, 321, 2205\u2026) gi\u1eefa ASTM\u2013JIS\u2013DIN\/EN, k\u00e8m l\u01b0u \u00fd ch\u1ecdn v\u00e0 ki\u1ec3m ch\u1ee9ng CO\/CQ.<\/p>\n","protected":false},"author":7,"featured_media":1028,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2390","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\/2390","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=2390"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2390\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1028"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2390"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2390"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2390"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}