{"id":1563,"date":"2026-01-17T12:34:08","date_gmt":"2026-01-17T05:34:08","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/"},"modified":"2026-01-17T12:34:08","modified_gmt":"2026-01-17T05:34:08","slug":"giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/","title":{"rendered":"Gi\u1ea3i m\u00e3 SUS, AISI, ASTM, JIS: \u00dd ngh\u0129a v\u00e0 c\u00e1ch \u0111\u1ecdc k\u00fd hi\u1ec7u inox"},"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;1563&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;Gi\u1ea3i m\u00e3 SUS, AISI, ASTM, JIS: \u00dd ngh\u0129a v\u00e0 c\u00e1ch \u0111\u1ecdc k\u00fd hi\u1ec7u inox&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 class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div 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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Tong_quan_nhanh_SUS_AISI_ASTM_JIS_la_gi\" >T\u1ed5ng quan nhanh: SUS, AISI, ASTM, JIS l\u00e0 g\u00ec?<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Phan_biet_ban_chat_%E2%80%9Cmac%E2%80%9D_vs_%E2%80%9Ctieu_chuan_san_pham%E2%80%9D\" >Ph\u00e2n bi\u1ec7t b\u1ea3n ch\u1ea5t: \u201cm\u00e1c\u201d vs \u201cti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m\u201d<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Cach_doc_cac_ky_hieu_inox_thuong_gap\" >C\u00e1ch \u0111\u1ecdc c\u00e1c k\u00fd hi\u1ec7u inox th\u01b0\u1eddng g\u1eb7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/inoxcuongthinh.com\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#AISIType\" >AISI\/Type<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/inoxcuongthinh.com\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#JISSUS\" >JIS\/SUS<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#ASTM\" >ASTM<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#UNS\" >UNS<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#ENISO_tham_khao\" >EN\/ISO (tham kh\u1ea3o)<\/a><\/li><\/ul><\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Quy_doi_nhanh_cac_mac_inox_pho_bien\" >Quy \u0111\u1ed5i nhanh c\u00e1c m\u00e1c inox ph\u1ed5 bi\u1ebfn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/inoxcuongthinh.com\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Cac_thanh_phan_dien_hinh_va_khac_biet_thuc_te\" >C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh v\u00e0 kh\u00e1c bi\u1ec7t th\u1ef1c t\u1ebf<\/a><\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Cach_doc_mot_chung_chi_vat_lieu_MTC_inox_dung_chuan\" >C\u00e1ch \u0111\u1ecdc m\u1ed9t ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u (MTC) inox \u0111\u00fang chu\u1ea9n<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Chi_dinh_dat_hang_dung_cho_du_an\" >Ch\u1ec9 \u0111\u1ecbnh \u0111\u1eb7t h\u00e0ng \u0111\u00fang cho d\u1ef1 \u00e1n<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Nhung_hieu_lam_pho_bien_can_tranh\" >Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Vi_du_quy_doi_tren_thuc_te_du_an_tai_Viet_Nam\" >V\u00ed d\u1ee5 quy \u0111\u1ed5i tr\u00ean th\u1ef1c t\u1ebf 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-16\" href=\"https:\/\/inoxcuongthinh.com\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Luu_y_hau_to_va_bien_the_mac\" >L\u01b0u \u00fd h\u1eadu t\u1ed1 v\u00e0 bi\u1ebfn th\u1ec3 m\u00e1c<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Kiem_tra_nhanh_khi_mua_hang_trong_nuoc\" >Ki\u1ec3m tra nhanh khi mua h\u00e0ng trong n\u01b0\u1edbc<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#Nguon_tham_khao\" >Ngu\u1ed3n tham kh\u1ea3o<\/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\/giai-ma-sus-aisi-astm-jis-y-nghia-va-cach-doc-ky-hieu-inox\/#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-sus-aisi-astm-jis-la-gi\">T\u1ed5ng quan nhanh: SUS, AISI, ASTM, JIS l\u00e0 g\u00ec?<\/a><\/li>\n<li><a href=\"#toc-1-phan-biet-ban-chat-mac-vs-tieu-chuan-san-pham\">Ph\u00e2n bi\u1ec7t b\u1ea3n ch\u1ea5t: \u201cm\u00e1c\u201d vs \u201cti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m\u201d<\/a><\/li>\n<li><a href=\"#toc-2-cach-doc-cac-ky-hieu-inox-thuong-gap\">C\u00e1ch \u0111\u1ecdc c\u00e1c k\u00fd hi\u1ec7u inox th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-3-quy-doi-nhanh-cac-mac-inox-pho-bien\">Quy \u0111\u1ed5i nhanh c\u00e1c m\u00e1c inox ph\u1ed5 bi\u1ebfn<\/a><\/li>\n<li><a href=\"#toc-4-cac-thanh-phan-dien-hinh-va-khac-biet-thuc-te\">C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh v\u00e0 kh\u00e1c bi\u1ec7t th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-5-cach-doc-mot-chung-chi-vat-lieu-mtc-inox-dung-chua\">C\u00e1ch \u0111\u1ecdc m\u1ed9t ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u (MTC) inox \u0111\u00fang chu\u1ea9n<\/a><\/li>\n<li><a href=\"#toc-6-chi-dinh-dat-hang-dung-cho-du-an\">Ch\u1ec9 \u0111\u1ecbnh \u0111\u1eb7t h\u00e0ng \u0111\u00fang cho d\u1ef1 \u00e1n<\/a><\/li>\n<li><a href=\"#toc-7-nhung-hieu-lam-pho-bien-can-tranh\">Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-8-vi-du-quy-doi-tren-thuc-te-du-an-tai-viet-nam\">V\u00ed d\u1ee5 quy \u0111\u1ed5i tr\u00ean th\u1ef1c t\u1ebf d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-9-luu-y-hau-to-va-bien-the-mac\">L\u01b0u \u00fd h\u1eadu t\u1ed1 v\u00e0 bi\u1ebfn th\u1ec3 m\u00e1c<\/a><\/li>\n<li><a href=\"#toc-10-kiem-tra-nhanh-khi-mua-hang-trong-nuoc\">Ki\u1ec3m tra nhanh khi mua h\u00e0ng trong n\u01b0\u1edbc<\/a><\/li>\n<li><a href=\"#toc-11-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-12-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong th\u1ef1c t\u1ebf mua \u2013 d\u00f9ng inox t\u1ea1i Vi\u1ec7t Nam, nhi\u1ec1u k\u1ef9 s\u01b0 v\u00e0 x\u01b0\u1edfng g\u1eb7p r\u1ed1i gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u SUS, AISI, ASTM, JIS. B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch ch\u00ednh x\u00e1c t\u1eebng h\u1ec7 k\u00fd hi\u1ec7u, ch\u1ec9 c\u00e1ch \u0111\u1ecdc tr\u00ean ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u (MTC), c\u00e1ch quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng (UNS\/EN), v\u00e0 g\u1ee3i \u00fd ch\u1ecdn \u2013 \u0111\u1eb7t h\u00e0ng \u0111\u00fang ti\u00eau chu\u1ea9n cho c\u00f4ng tr\u00ecnh. \u0110\u00e2y l\u00e0 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng quan tr\u1ecdng khi b\u1eaft \u0111\u1ea7u v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9, gi\u00fap b\u1ea1n tr\u00e1nh sai s\u00f3t k\u1ef9 thu\u1eadt v\u00e0 r\u1ee7i ro mua nh\u1ea7m m\u00e1c.<\/p>\n<h2 id=\"toc-0-tong-quan-nhanh-sus-aisi-astm-jis-la-gi\"><span class=\"ez-toc-section\" id=\"Tong_quan_nhanh_SUS_AISI_ASTM_JIS_la_gi\"><\/span>T\u1ed5ng quan nhanh: SUS, AISI, ASTM, JIS l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; SUS: Ti\u1ec1n t\u1ed1 c\u1ee7a h\u1ec7 ti\u00eau chu\u1ea9n JIS (Japanese Industrial Standards) d\u00e0nh cho th\u00e9p kh\u00f4ng g\u1ec9. V\u00ed d\u1ee5: SUS304, SUS316L. JIS quy \u0111\u1ecbnh c\u1ea3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 c\u01a1 t\u00ednh cho t\u1eebng m\u00e1c theo t\u1eebng d\u1ea1ng s\u1ea3n ph\u1ea9m (thanh, t\u1ea5m, \u1ed1ng).<br \/>\n&#8211; AISI: American Iron and Steel Institute. \u201cAISI 304\/316\/430\u2026\u201d l\u00e0 c\u00e1ch g\u1ecdi th\u01b0\u01a1ng m\u1ea1i l\u00e2u \u0111\u1eddi c\u1ee7a c\u00e1c \u201cType\u201d 3 ch\u1eef s\u1ed1. T\u1eeb th\u1eadp ni\u00ean 1990, AISI kh\u00f4ng c\u00f2n duy tr\u00ec danh m\u1ee5c m\u00e1c; ph\u00e2n lo\u1ea1i hi\u1ec7n nay do SAE\/UNS qu\u1ea3n l\u00fd, nh\u01b0ng c\u00e1ch g\u1ecdi AISI v\u1eabn ph\u1ed5 bi\u1ebfn trong th\u01b0\u01a1ng m\u1ea1i.<br \/>\n&#8211; ASTM: ASTM International \u2013 c\u01a1 quan ban h\u00e0nh ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m (plate\/sheet\/pipe\/bar\u2026), quy \u0111\u1ecbnh c\u1ea5p b\u1ec1n, th\u1eed nghi\u1ec7m, sai l\u1ec7ch, k\u00fd hi\u1ec7u giao h\u00e0ng. V\u00ed d\u1ee5: ASTM A240 (t\u1ea5m), ASTM A312 (\u1ed1ng). Trong t\u1eebng ti\u00eau chu\u1ea9n, \u201cType 304\/316\u2026\u201d tham chi\u1ebfu sang m\u00e1c (theo UNS\/AISI).<br \/>\n&#8211; JIS: H\u1ec7 ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p Nh\u1eadt B\u1ea3n. C\u00e1c ti\u00eau chu\u1ea9n th\u01b0\u1eddng g\u1eb7p v\u1edbi inox: JIS G4303 (thanh), G4304 (t\u1ea5m c\u00e1n n\u00f3ng), G4305 (t\u1ea5m c\u00e1n ngu\u1ed9i), G3459 (\u1ed1ng).<br \/>\n&#8211; UNS: Unified Numbering System \u2013 m\u00e3 v\u1eadt li\u1ec7u chu\u1ea9n qu\u1ed1c t\u1ebf cho th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc. V\u00ed d\u1ee5: 304 = UNS S30400; 304L = S30403; 316L = S31603. UNS gi\u00fap quy \u0111\u1ed5i \u201cngang h\u00e0ng\u201d gi\u1eefa AISI\/JIS\/EN.<br \/>\n&#8211; EN\/ISO: H\u1ec7 ch\u00e2u \u00c2u\/Qu\u1ed1c t\u1ebf (EN 1.4301 \u2248 304; ISO 15510 \u0111\u1eb7t d\u1ea3i th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc). Th\u01b0\u1eddng g\u1eb7p trong d\u1ef1 \u00e1n FDI\/EU.<\/p>\n<p>T\u00f3m l\u1ea1i: AISI\/UNS n\u00f3i v\u1ec1 \u201cm\u00e1c th\u00e9p\u201d; ASTM\/JIS n\u00f3i v\u1ec1 \u201cti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m + m\u00e1c\u201d. Khi \u0111\u1eb7t h\u00e0ng b\u1ea1n c\u1ea7n c\u1ea3 hai.<\/p>\n<h2 id=\"toc-1-phan-biet-ban-chat-mac-vs-tieu-chuan-san-pham\"><span class=\"ez-toc-section\" id=\"Phan_biet_ban_chat_%E2%80%9Cmac%E2%80%9D_vs_%E2%80%9Ctieu_chuan_san_pham%E2%80%9D\"><\/span>Ph\u00e2n bi\u1ec7t b\u1ea3n ch\u1ea5t: \u201cm\u00e1c\u201d vs \u201cti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m\u201d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; \u201cM\u00e1c th\u00e9p\u201d (grade): 304, 316, 430, 410, 17-4PH\u2026 m\u00f4 t\u1ea3 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc (Cr, Ni, Mo, C\u2026). Th\u1ec3 hi\u1ec7n b\u1eb1ng AISI\/Type, JIS SUSxxx, ho\u1eb7c UNS Sxxxxx.<br \/>\n&#8211; \u201cTi\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m\u201d (product standard): Quy \u0111\u1ecbnh cho t\u1eebng d\u1ea1ng (t\u1ea5m, \u1ed1ng, thanh) v\u1ec1 \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 c\u1ee9ng, ki\u1ec3m tra, dung sai, k\u00fd hi\u1ec7u giao h\u00e0ng\u2026 V\u00ed d\u1ee5:<br \/>\n  &#8211; T\u1ea5m\/coil: ASTM A240\/A240M; JIS G4304\/G4305.<br \/>\n  &#8211; \u1ed0ng h\u00e0n\/\u0111\u00fac: ASTM A312 (TP304\/316); JIS G3459 (SUS304\/316).<br \/>\n  &#8211; Thanh tr\u00f2n\/thanh vu\u00f4ng: ASTM A276; JIS G4303.<br \/>\nB\u1ea1n c\u1ea7n ghi r\u00f5: ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m + m\u00e1c + t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t\/nhi\u1ec7t luy\u1ec7n + k\u00edch th\u01b0\u1edbc.<\/p>\n<h2 id=\"toc-2-cach-doc-cac-ky-hieu-inox-thuong-gap\"><span class=\"ez-toc-section\" id=\"Cach_doc_cac_ky_hieu_inox_thuong_gap\"><\/span>C\u00e1ch \u0111\u1ecdc c\u00e1c k\u00fd hi\u1ec7u inox th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"AISIType\"><\/span>AISI\/Type<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 304, 316: Austenitic (Cr-Ni). 304L\/316L: b\u1ea3n \u201cL\u201d carbon th\u1ea5p \u0111\u1ec3 d\u1ec5 h\u00e0n, gi\u1ea3m nh\u1ea1y c\u1ea3m \u0103n m\u00f2n k\u1ebd h\u1edf (sensitization).<br \/>\n&#8211; 430: Ferritic (Cr), t\u1eeb t\u00ednh, kh\u00f4ng\/\u00edt Ni.<br \/>\n&#8211; 410\/420: Martensitic (c\u00f3 C cao h\u01a1n, t\u00f4i ram \u0111\u01b0\u1ee3c), d\u00f9ng dao k\u00e9o, tr\u1ee5c.<br \/>\n&#8211; 17-4PH (AISI 630): Th\u00e9p kh\u00f4ng g\u1ec9 h\u00f3a b\u1ec1n k\u1ebft t\u1ee7a, c\u01b0\u1eddng \u0111\u1ed9 cao.<br \/>\nL\u01b0u \u00fd: D\u00f9 g\u1ecdi \u201cAISI 304\u201d, khi ghi tr\u00ean ch\u1ee9ng ch\u1ec9 hi\u1ec7n \u0111\u1ea1i s\u1ebd k\u00e8m UNS (S30400).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"JISSUS\"><\/span>JIS\/SUS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; SUS304, SUS316, SUS430 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 304, 316, 430.<br \/>\n&#8211; H\u1eadu t\u1ed1 \u201cL\u201d trong JIS (SUS304L, SUS316L) = carbon th\u1ea5p nh\u01b0 trong AISI.<br \/>\n&#8211; M\u1ed9t s\u1ed1 m\u00e1c JIS c\u00f3 k\u00fd t\u1ef1 b\u1ed5 sung (J1, J2\u2026) l\u00e0 bi\u1ebfn th\u1ec3 th\u00e0nh ph\u1ea7n theo m\u1ee5c \u0111\u00edch ri\u00eang; c\u1ea7n \u0111\u1ed1i chi\u1ebfu ti\u00eau chu\u1ea9n c\u1ee5 th\u1ec3.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"ASTM\"><\/span>ASTM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Kh\u00f4ng ph\u1ea3i \u201ct\u00ean m\u00e1c\u201d m\u00e0 l\u00e0 \u201cti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m\u201d. V\u00ed d\u1ee5:<br \/>\n  &#8211; ASTM A240 Type 304: t\u1ea5m\/coil lo\u1ea1i 304.<br \/>\n  &#8211; ASTM A312 TP316L: \u1ed1ng h\u00e0n\/\u0111\u00fac lo\u1ea1i 316L (TP = Tubular Product).<br \/>\n  &#8211; ASTM A276 Type 420: thanh \u0111\u1eb7c lo\u1ea1i 420.<br \/>\nTr\u00ean MTC th\u01b0\u1eddng th\u1ec3 hi\u1ec7n \u201cASTM A240\/A240M \u2013 Type 304L \u2013 UNS S30403\u201d.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"UNS\"><\/span>UNS<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; C\u1eb7p m\u00e3 ch\u1eef-s\u1ed1, b\u1eaft \u0111\u1ea7u b\u1eb1ng \u201cS\u201d cho inox. V\u00ed d\u1ee5:<br \/>\n  &#8211; S30400 (304), S30403 (304L), S31600 (316), S31603 (316L), S43000 (430), S41000 (410), S17400 (17-4PH).<br \/>\n&#8211; D\u00f9ng UNS khi c\u1ea7n quy \u0111\u1ecbnh ch\u00ednh x\u00e1c th\u00e0nh ph\u1ea7n, tr\u00e1nh nh\u1ea7m l\u1eabn gi\u1eefa h\u1ec7 g\u1ecdi t\u00ean kh\u00e1c nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"ENISO_tham_khao\"><\/span>EN\/ISO (tham kh\u1ea3o)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; EN 1.4301 \u2248 304; 1.4307 \u2248 304L; 1.4401 \u2248 316; 1.4404 \u2248 316L; 1.4016 \u2248 430; 1.4006 \u2248 410; 1.4542 \u2248 17-4PH.<br \/>\n&#8211; K\u00fd hi\u1ec7u m\u00f4 t\u1ea3 th\u00e0nh ph\u1ea7n: X5CrNi18-10 (304), X2CrNiMo17-12-2 (316L).<\/p>\n<h2 id=\"toc-3-quy-doi-nhanh-cac-mac-inox-pho-bien\"><span class=\"ez-toc-section\" id=\"Quy_doi_nhanh_cac_mac_inox_pho_bien\"><\/span>Quy \u0111\u1ed5i nhanh c\u00e1c m\u00e1c inox ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 304: AISI 304 \u2248 JIS SUS304 \u2248 UNS S30400 \u2248 EN 1.4301.<br \/>\n&#8211; 304L: AISI 304L \u2248 SUS304L \u2248 S30403 \u2248 1.4307.<br \/>\n&#8211; 316: AISI 316 \u2248 SUS316 \u2248 S31600 \u2248 1.4401.<br \/>\n&#8211; 316L: AISI 316L \u2248 SUS316L \u2248 S31603 \u2248 1.4404.<br \/>\n&#8211; 430: AISI 430 \u2248 SUS430 \u2248 S43000 \u2248 1.4016.<br \/>\n&#8211; 410: AISI 410 \u2248 SUS410 \u2248 S41000 \u2248 1.4006.<br \/>\n&#8211; 17-4PH: AISI 630 \u2248 SUS630 \u2248 S17400 \u2248 1.4542.<br \/>\nL\u01b0u \u00fd: \u201cT\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d d\u1ef1a tr\u00ean d\u1ea3i th\u00e0nh ph\u1ea7n g\u1ea7n nhau trong ISO 15510\/ASTM\/JIS. H\u00e3y \u0111\u1ed1i chi\u1ebfu ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3 tr\u01b0\u1edbc khi thay th\u1ebf trong d\u1ef1 \u00e1n nghi\u00eam ng\u1eb7t.<\/p>\n<h2 id=\"toc-4-cac-thanh-phan-dien-hinh-va-khac-biet-thuc-te\"><span class=\"ez-toc-section\" id=\"Cac_thanh_phan_dien_hinh_va_khac_biet_thuc_te\"><\/span>C\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh v\u00e0 kh\u00e1c bi\u1ec7t th\u1ef1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 304: Cr ~18\u201320%, Ni ~8\u201310.5%. C\u00e2n b\u1eb1ng gi\u1eefa kh\u1ea3 n\u0103ng h\u00e0n v\u00e0 ch\u1ed1ng \u0103n m\u00f2n chung.<br \/>\n&#8211; 316\/316L: Cr ~16\u201318%, Ni ~10\u201314%, Mo ~2\u20133% \u2192 ch\u1ed1ng \u0103n m\u00f2n k\u1ebd h\u1edf\/clorua t\u1ed1t h\u01a1n 304.<br \/>\n&#8211; 201: Cr ~16\u201318%, Ni th\u1ea5p (~3.5\u20135.5%) b\u00f9 b\u1eb1ng Mn\/N \u2192 gi\u00e1 r\u1ebb nh\u01b0ng k\u00e9m ch\u1ed1ng \u0103n m\u00f2n clorua so v\u1edbi 304.<br \/>\n&#8211; 430: Cr ~16\u201318%, g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f3 Ni \u2192 t\u1eeb t\u00ednh, ch\u1ed1ng \u0103n m\u00f2n th\u1ea5p h\u01a1n 304, ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t kh\u00f4.<br \/>\n&#8211; 410\/420: Cr ~11.5\u201314%, C cao \u2192 c\u00f3 th\u1ec3 t\u00f4i c\u1ee9ng, \u0111\u1ed9 c\u1ee9ng\/\u0111\u1ed9 m\u00f2n t\u1ed1t, ch\u1ed1ng \u0103n m\u00f2n v\u1eeba ph\u1ea3i.<br \/>\n&#8211; 17-4PH: Cr ~15\u201317.5%, Ni ~3\u20135%, Cu ~3\u20135% \u2192 h\u00f3a b\u1ec1n k\u1ebft t\u1ee7a, \u0111\u1ed9 b\u1ec1n r\u1ea5t cao.<br \/>\nC\u00e1c d\u1ea3i th\u00e0nh ph\u1ea7n ch\u00ednh th\u1ee9c xem trong ASTM A240\/A276, JIS G4303\/G4304, ISO 15510.<\/p>\n<h2 id=\"toc-5-cach-doc-mot-chung-chi-vat-lieu-mtc-inox-dung-chua\"><span class=\"ez-toc-section\" id=\"Cach_doc_mot_chung_chi_vat_lieu_MTC_inox_dung_chuan\"><\/span>C\u00e1ch \u0111\u1ecdc m\u1ed9t ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u (MTC) inox \u0111\u00fang chu\u1ea9n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>V\u00ed d\u1ee5 MTC h\u1ee3p l\u1ec7 cho t\u1ea5m 316L:<br \/>\n&#8211; Ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m: ASTM A240\/A240M-22 ho\u1eb7c JIS G4304.<br \/>\n&#8211; M\u00e1c\/Type: 316L.<br \/>\n&#8211; UNS: S31603 (b\u1eaft bu\u1ed9c v\u1edbi nh\u00e0 m\u00e1y nghi\u00eam t\u00fac).<br \/>\n&#8211; Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc: C, Mn, P, S, Si, Cr, Ni, Mo, N\u2026 trong d\u1ea3i chu\u1ea9n.<br \/>\n&#8211; C\u01a1 t\u00ednh: Rp0.2, Rm, A5 theo ti\u00eau chu\u1ea9n.<br \/>\n&#8211; T\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t: 2B\/BA\/No.1\/HRAP.<br \/>\n&#8211; Nhi\u1ec7t luy\u1ec7n: Solution Annealed (n\u1ebfu \u00e1p d\u1ee5ng).<br \/>\n&#8211; Th\u1eed b\u1ed5 sung: PMI, Corrosion test (n\u1ebfu y\u00eau c\u1ea7u).<br \/>\nN\u1ebfu MTC ch\u1ec9 ghi \u201cInox 316L\u201d kh\u00f4ng k\u00e8m ti\u00eau chu\u1ea9n\/UNS\/d\u1eef li\u1ec7u ki\u1ec3m, n\u00ean th\u1eadn tr\u1ecdng.<\/p>\n<h2 id=\"toc-6-chi-dinh-dat-hang-dung-cho-du-an\"><span class=\"ez-toc-section\" id=\"Chi_dinh_dat_hang_dung_cho_du_an\"><\/span>Ch\u1ec9 \u0111\u1ecbnh \u0111\u1eb7t h\u00e0ng \u0111\u00fang cho d\u1ef1 \u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; X\u00e1c \u0111\u1ecbnh m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c:<br \/>\n  &#8211; 304\/304L: n\u1ed9i th\u1ea5t, th\u1ef1c ph\u1ea9m, m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb kh\u00f4.<br \/>\n  &#8211; 316\/316L: ven bi\u1ec3n\/ho\u00e1 ch\u1ea5t nh\u1eb9, n\u01b0\u1edbc mu\u1ed1i nh\u1eb9.<br \/>\n  &#8211; 430: trang tr\u00ed trong nh\u00e0, thi\u1ebft b\u1ecb d\u00e2n d\u1ee5ng kh\u00f4.<br \/>\n  &#8211; 410\/420: chi ti\u1ebft ch\u1ecbu m\u00e0i m\u00f2n, c\u1ea7n \u0111\u1ed9 c\u1ee9ng.<br \/>\n  &#8211; 17-4PH: tr\u1ee5c, chi ti\u1ebft ch\u1ecbu t\u1ea3i cao.<br \/>\n&#8211; Ghi r\u00f5 y\u00eau c\u1ea7u:<br \/>\n  &#8211; D\u1ea1ng s\u1ea3n ph\u1ea9m + ti\u00eau chu\u1ea9n: \u201cPlate ASTM A240\u201d, \u201cPipe ASTM A312\u201d, \u201cBar ASTM A276\u201d ho\u1eb7c JIS t\u01b0\u01a1ng \u1ee9ng.<br \/>\n  &#8211; M\u00e1c + UNS: \u201cType 316L (UNS S31603)\u201d.<br \/>\n  &#8211; K\u00edch th\u01b0\u1edbc, dung sai, b\u1ec1 m\u1eb7t: \u201c3.0 mm, 2B, k\u00edch th\u01b0\u1edbc t\u1ea5m 1219\u00d72438\u201d.<br \/>\n  &#8211; Th\u1eed nghi\u1ec7m\/ch\u1ee9ng ch\u1ec9: \u201cEN 10204 3.1, PMI 100%, test mu\u1ed1i n\u1ebfu c\u1ea7n\u201d.<br \/>\n&#8211; V\u00ed d\u1ee5 ch\u1ec9 \u0111\u1ecbnh ho\u00e0n ch\u1ec9nh:<br \/>\n  &#8211; \u201cASTM A240 Type 316L (UNS S31603), 3.0 mm, finish 2B, size 1219\u00d72438, MTC 3.1.\u201d<br \/>\n  &#8211; \u201cASTM A312 TP304L, SCH10S, DN50, 6m, h\u00e0n GTAW 100% RT.\u201d<\/p>\n<h2 id=\"toc-7-nhung-hieu-lam-pho-bien-can-tranh\"><span class=\"ez-toc-section\" id=\"Nhung_hieu_lam_pho_bien_can_tranh\"><\/span>Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ea7n tr\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; \u201cASTM = AISI\u201d: Sai. ASTM l\u00e0 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m; AISI\/UNS l\u00e0 t\u00ean m\u00e1c.<br \/>\n&#8211; \u201cSUS l\u00e0 inox Nh\u1eadt n\u00ean t\u1ed1t h\u01a1n\u201d: Kh\u00f4ng ch\u00ednh x\u00e1c. SUS ch\u1ec9 l\u00e0 c\u00e1ch \u0111\u1eb7t t\u00ean theo JIS; ch\u1ea5t l\u01b0\u1ee3ng ph\u1ee5 thu\u1ed9c ti\u00eau chu\u1ea9n, nh\u00e0 m\u00e1y v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng.<br \/>\n&#8211; \u201c304 kh\u00f4ng bao gi\u1edd r\u1ec9\u201d: Sai. 304 c\u00f3 th\u1ec3 b\u1ecb r\u1ed7\/k\u1ebd h\u1edf trong m\u00f4i tr\u01b0\u1eddng clorua; c\u1ea7n 316\/duplex cho m\u00f4i tr\u01b0\u1eddng n\u1eb7ng.<br \/>\n&#8211; \u201c201 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 304\u201d: Sai. 201 k\u00e9m ch\u1ed1ng \u0103n m\u00f2n clorua h\u01a1n, ch\u1ec9 d\u00f9ng m\u00f4i tr\u01b0\u1eddng nh\u1eb9.<\/p>\n<h2 id=\"toc-8-vi-du-quy-doi-tren-thuc-te-du-an-tai-viet-nam\"><span class=\"ez-toc-section\" id=\"Vi_du_quy_doi_tren_thuc_te_du_an_tai_Viet_Nam\"><\/span>V\u00ed d\u1ee5 quy \u0111\u1ed5i tr\u00ean th\u1ef1c t\u1ebf d\u1ef1 \u00e1n t\u1ea1i Vi\u1ec7t Nam<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; T\u1ea5m 304L cho b\u1ed3n th\u1ef1c ph\u1ea9m:<br \/>\n  &#8211; T\u00e0i li\u1ec7u th\u1ea7u EU: EN 1.4307. Nh\u00e0 cung c\u1ea5p VN: ASTM A240 Type 304L (UNS S30403). Ch\u1ea5p nh\u1eadn n\u1ebfu MTC ch\u1ee9ng minh th\u00e0nh ph\u1ea7n\/c\u01a1 t\u00ednh ph\u00f9 h\u1ee3p v\u00e0 c\u00f3 \u0111\u1ed1i chi\u1ebfu.<br \/>\n&#8211; \u1ed0ng quy tr\u00ecnh h\u00f3a ch\u1ea5t nh\u1eb9:<br \/>\n  &#8211; Th\u1ea7u Nh\u1eadt: JIS G3459 SUS316L.<br \/>\n  &#8211; Ngu\u1ed3n thay th\u1ebf: ASTM A312 TP316L. Hai ti\u00eau chu\u1ea9n c\u00f3 y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m kh\u00e1c nhau; c\u1ea7n so kh\u1edbp chi\u1ec1u d\u00e0y, ki\u1ec3m tra NDT, hydrotest theo y\u00eau c\u1ea7u th\u1ea7u.<\/p>\n<h2 id=\"toc-9-luu-y-hau-to-va-bien-the-mac\"><span class=\"ez-toc-section\" id=\"Luu_y_hau_to_va_bien_the_mac\"><\/span>L\u01b0u \u00fd h\u1eadu t\u1ed1 v\u00e0 bi\u1ebfn th\u1ec3 m\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; L: Low Carbon (\u22640.03%) \u2013 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng h\u00e0n (304L, 316L).<br \/>\n&#8211; N: T\u0103ng Nito \u0111\u1ec3 n\u00e2ng b\u1ec1n\/kh\u1ea3 n\u0103ng ch\u1ed1ng r\u1ed7 (304N\/316N theo EN\/ISO).<br \/>\n&#8211; Ti\/Nb: \u1ed4n \u0111\u1ecbnh h\u00f3a ch\u1ed1ng \u0103n m\u00f2n li\u00ean tinh sau h\u00e0n (321 = Ti, 347 = Nb).<br \/>\n&#8211; F\/Se (v\u00ed d\u1ee5 303): D\u1ec5 gia c\u00f4ng c\u1eaft g\u1ecdt (free-machining) \u2013 \u0111\u00e1nh \u0111\u1ed5i ch\u1ed1ng \u0103n m\u00f2n.<br \/>\n&#8211; Duplex (v\u00ed d\u1ee5 2205 = UNS S32205\/S31803): Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n clorua v\u00e0 b\u1ec1n cao h\u01a1n 316.<\/p>\n<h2 id=\"toc-10-kiem-tra-nhanh-khi-mua-hang-trong-nuoc\"><span class=\"ez-toc-section\" id=\"Kiem_tra_nhanh_khi_mua_hang_trong_nuoc\"><\/span>Ki\u1ec3m tra nhanh khi mua h\u00e0ng trong n\u01b0\u1edbc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Y\u00eau c\u1ea7u MTC 3.1 n\u00eau r\u00f5 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m + UNS.<br \/>\n&#8211; PMI t\u1ea1i ch\u1ed7 \u0111\u1ec3 x\u00e1c th\u1ef1c Cr\/Ni\/Mo v\u1edbi 304\/316\/430\/duplex.<br \/>\n&#8211; Ki\u1ec3m k\u00edch th\u01b0\u1edbc\/b\u1ec1 m\u1eb7t theo ti\u00eau chu\u1ea9n (A480 cho t\u1ea5m; A999\/A962\/A484 cho \u0111i\u1ec1u kho\u1ea3n chung).<br \/>\n&#8211; C\u1ea3nh gi\u00e1c v\u1edbi \u201c304 t\u1eeb t\u00ednh l\u00e0 gi\u1ea3\u201d: Kh\u00f4ng h\u1eb3n. 304 c\u00f3 th\u1ec3 h\u01a1i t\u1eeb t\u00ednh sau c\u00e1n u\u1ed1n\/h\u00e0n ngu\u1ed9i; \u0111\u00e1nh gi\u00e1 b\u1eb1ng th\u00e0nh ph\u1ea7n v\u00e0 m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng m\u1edbi ch\u00ednh x\u00e1c.<\/p>\n<h2 id=\"toc-11-nguon-tham-khao\"><span class=\"ez-toc-section\" id=\"Nguon_tham_khao\"><\/span>Ngu\u1ed3n tham kh\u1ea3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; ASTM A240\/A240M \u2013 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip (astm.org)<br \/>\n&#8211; ASTM A312\/A312M \u2013 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes (astm.org)<br \/>\n&#8211; ASTM A276\/A276M \u2013 Standard Specification for Stainless Steel Bars and Shapes (astm.org)<br \/>\n&#8211; JIS G 4303\/G 4304\/G 4305 \u2013 Stainless steel bars\/plates\/sheets (Japanese Standards Association \u2013 jsa.or.jp)<br \/>\n&#8211; ISO 15510: Stainless steels \u2014 Chemical composition (iso.org)<br \/>\n&#8211; SAE J1086\/UNS: Unified Numbering System for Metals and Alloys (sae.org)<br \/>\n&#8211; British Stainless Steel Association \u2013 Grade comparisons and datasheets (bssa.org.uk)<\/p>\n<h2 id=\"toc-12-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; SUS, AISI, ASTM, JIS kh\u00f4ng \u201ctr\u00f9ng nhau\u201d: SUS v\u00e0 AISI l\u00e0 c\u00e1ch g\u1ecdi m\u00e1c; ASTM\/JIS ch\u1ee7 y\u1ebfu l\u00e0 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m. Quy \u0111\u1ed5i ch\u00ednh x\u00e1c n\u00ean d\u1ef1a tr\u00ean UNS\/EN.<br \/>\n&#8211; \u0110\u1eb7t h\u00e0ng \u0111\u00fang ph\u1ea3i ghi: ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m (ASTM\/JIS) + m\u00e1c (Type\/SUS) + UNS + \u0111i\u1ec1u ki\u1ec7n b\u1ec1 m\u1eb7t\/nhi\u1ec7t luy\u1ec7n + k\u00edch th\u01b0\u1edbc + th\u1eed nghi\u1ec7m\/ch\u1ee9ng ch\u1ec9.<br \/>\n&#8211; D\u00f9ng 304\/316\/430\/410\/17-4PH \u0111\u00fang m\u00f4i tr\u01b0\u1eddng \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed \u2013 \u0111\u1ed9 b\u1ec1n. Lu\u00f4n ki\u1ec3m tra MTC v\u00e0 PMI \u0111\u1ec3 tr\u00e1nh mua nh\u1ea7m.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c, quy \u0111\u1ed5i ti\u00eau chu\u1ea9n ho\u1eb7c b\u00e1o gi\u00e1 nhanh? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u2013 nh\u00e0 cung c\u1ea5p inox uy t\u00edn t\u1ea1i H\u00e0 N\u1ed9i.<br \/>\nHotline: 0343.417.281<br \/>\nEmail: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u \u0111\u00fang SUS, AISI, ASTM, JIS; quy \u0111\u1ed5i sang UNS\/EN; c\u00e1ch \u0111\u1ecdc 304\/316\/430 tr\u00ean ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u \u0111\u1ec3 ch\u1ecdn \u0111\u00fang inox cho d\u1ef1 \u00e1n c\u01a1 kh\u00ed, x\u00e2y d\u1ef1ng.<\/p>\n","protected":false},"author":7,"featured_media":1069,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1563","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\/1563","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=1563"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1563\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1069"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}