{"id":2377,"date":"2026-08-01T00:36:18","date_gmt":"2026-07-31T17:36:18","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/"},"modified":"2026-08-01T00:36:18","modified_gmt":"2026-07-31T17:36:18","slug":"tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/","title":{"rendered":"Ti\u00eau chu\u1ea9n GB cho inox nh\u1eadp kh\u1ea9u: quy \u0111\u1ed5i, ki\u1ec3m tra, mua \u0111\u00fang"},"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;2377&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;Ti\u00eau chu\u1ea9n GB cho inox nh\u1eadp kh\u1ea9u: quy \u0111\u1ed5i, ki\u1ec3m tra, mua \u0111\u00fang&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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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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Tieu_chuan_GB_la_gi_va_pham_vi_ap_dung_voi_inox\" >Ti\u00eau chu\u1ea9n GB l\u00e0 g\u00ec v\u00e0 ph\u1ea1m vi \u00e1p d\u1ee5ng v\u1edbi inox<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Quy_doi_nhanh_mac_inox_GB_sang_ASTMJIS_dinh_huong\" >Quy \u0111\u1ed5i nhanh m\u00e1c inox GB sang ASTM\/JIS (\u0111\u1ecbnh h\u01b0\u1edbng)<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Thanh_phan_va_tinh_chat_so_voi_ASTMJIS_co_gi_khac\" >Th\u00e0nh ph\u1ea7n v\u00e0 t\u00ednh ch\u1ea5t: so v\u1edbi ASTM\/JIS c\u00f3 g\u00ec kh\u00e1c?<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Chon_dung_tieu_chuan_san_pham_GB_theo_hang_muc\" >Ch\u1ecdn \u0111\u00fang ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m GB theo h\u1ea1ng m\u1ee5c<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Tamcoil_inox\" >T\u1ea5m\/coil inox<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Ong_inox\" >\u1ed0ng inox<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Thanhday\" >Thanh\/d\u00e2y<\/a><\/li><\/ul><\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Doc_dung_ho_so_COCQ_va_MTC_khi_mua_inox_GB\" >\u0110\u1ecdc \u0111\u00fang h\u1ed3 s\u01a1 CO\/CQ v\u00e0 MTC khi mua inox GB<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Quy_trinh_7_buoc_kiem_tra_lo_inox_GB_nhap_khau\" >Quy tr\u00ecnh 7 b\u01b0\u1edbc ki\u1ec3m tra l\u00f4 inox GB nh\u1eadp kh\u1ea9u<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Luu_y_chon_mac_va_ung_dung_thuc_te\" >L\u01b0u \u00fd ch\u1ecdn m\u00e1c v\u00e0 \u1ee9ng d\u1ee5ng 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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#So_sanh_nhanh_GB_voi_ASTMJIS_trong_mua_hang\" >So s\u00e1nh nhanh GB v\u1edbi ASTM\/JIS trong mua h\u00e0ng<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Bay_thuong_gap_va_cach_tranh\" >B\u1eaby th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Chien_luoc_mua_inox_GB_hieu_qua\" >Chi\u1ebfn l\u01b0\u1ee3c mua inox GB hi\u1ec7u qu\u1ea3<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Thuat_ngu_can_biet_khi_doc_ho_so_GB\" >Thu\u1eadt ng\u1eef c\u1ea7n bi\u1ebft khi \u0111\u1ecdc h\u1ed3 s\u01a1 GB<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Cau_hoi_thuong_gap\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#Tai_lieu_tham_khao\" >T\u00e0i li\u1ec7u tham kh\u1ea3o<\/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\/tieu-chuan-gb-cho-inox-nhap-khau-quy-doi-kiem-tra-mua-dung\/#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-tieu-chuan-gb-la-gi-va-pham-vi-ap-dung-voi-inox\">Ti\u00eau chu\u1ea9n GB l\u00e0 g\u00ec v\u00e0 ph\u1ea1m vi \u00e1p d\u1ee5ng v\u1edbi inox<\/a><\/li>\n<li><a href=\"#toc-1-quy-doi-nhanh-mac-inox-gb-sang-astmjis-dinh-huong\">Quy \u0111\u1ed5i nhanh m\u00e1c inox GB sang ASTM\/JIS (\u0111\u1ecbnh h\u01b0\u1edbng)<\/a><\/li>\n<li><a href=\"#toc-2-thanh-phan-va-tinh-chat-so-voi-astmjis-co-gi-khac\">Th\u00e0nh ph\u1ea7n v\u00e0 t\u00ednh ch\u1ea5t: so v\u1edbi ASTM\/JIS c\u00f3 g\u00ec kh\u00e1c?<\/a><\/li>\n<li><a href=\"#toc-3-chon-dung-tieu-chuan-san-pham-gb-theo-hang-muc\">Ch\u1ecdn \u0111\u00fang ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m GB theo h\u1ea1ng m\u1ee5c<\/a><\/li>\n<li><a href=\"#toc-4-doc-dung-ho-so-cocq-va-mtc-khi-mua-inox-gb\">\u0110\u1ecdc \u0111\u00fang h\u1ed3 s\u01a1 CO\/CQ v\u00e0 MTC khi mua inox GB<\/a><\/li>\n<li><a href=\"#toc-5-quy-trinh-7-buoc-kiem-tra-lo-inox-gb-nhap-khau\">Quy tr\u00ecnh 7 b\u01b0\u1edbc ki\u1ec3m tra l\u00f4 inox GB nh\u1eadp kh\u1ea9u<\/a><\/li>\n<li><a href=\"#toc-6-luu-y-chon-mac-va-ung-dung-thuc-te\">L\u01b0u \u00fd ch\u1ecdn m\u00e1c v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-7-so-sanh-nhanh-gb-voi-astmjis-trong-mua-hang\">So s\u00e1nh nhanh GB v\u1edbi ASTM\/JIS trong mua h\u00e0ng<\/a><\/li>\n<li><a href=\"#toc-8-bay-thuong-gap-va-cach-tranh\">B\u1eaby th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-9-chien-luoc-mua-inox-gb-hieu-qua\">Chi\u1ebfn l\u01b0\u1ee3c mua inox GB hi\u1ec7u qu\u1ea3<\/a><\/li>\n<li><a href=\"#toc-10-thuat-ngu-can-biet-khi-doc-ho-so-gb\">Thu\u1eadt ng\u1eef c\u1ea7n bi\u1ebft khi \u0111\u1ecdc h\u1ed3 s\u01a1 GB<\/a><\/li>\n<li><a href=\"#toc-11-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-12-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-13-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n v\u00e0 ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng inox, b\u1ed9 ti\u00eau chu\u1ea9n GB (Trung Qu\u1ed1c) ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam nh\u1edd ngu\u1ed3n cung d\u1ed3i d\u00e0o v\u00e0 gi\u00e1 c\u1ea1nh tranh. B\u00e0i vi\u1ebft n\u00e0y gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 inox theo ti\u00eau chu\u1ea9n GB, c\u00e1ch quy \u0111\u1ed5i sang ASTM\/JIS, \u0111\u1ecdc \u0111\u00fang h\u1ed3 s\u01a1 CO\/CQ, ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 l\u01b0u \u00fd khi mua h\u00e0ng nh\u1eadp kh\u1ea9u.<\/p>\n<h2 id=\"toc-0-tieu-chuan-gb-la-gi-va-pham-vi-ap-dung-voi-inox\"><span class=\"ez-toc-section\" id=\"Tieu_chuan_GB_la_gi_va_pham_vi_ap_dung_voi_inox\"><\/span>Ti\u00eau chu\u1ea9n GB l\u00e0 g\u00ec v\u00e0 ph\u1ea1m vi \u00e1p d\u1ee5ng v\u1edbi inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; GB (Guobiao) l\u00e0 h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n qu\u1ed1c gia Trung Qu\u1ed1c, g\u1ed3m:<br \/>\n  &#8211; GB: ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c (\u00edt g\u1eb7p v\u1edbi v\u1eadt li\u1ec7u inox th\u00f4ng d\u1ee5ng).<br \/>\n  &#8211; GB\/T: ti\u00eau chu\u1ea9n khuy\u1ebfn ngh\u1ecb\/ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt (ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u1edbi inox).<br \/>\n&#8211; V\u1edbi inox, GB quy \u0111\u1ecbnh t\u1eeb k\u00fd hi\u1ec7u m\u00e1c th\u00e9p, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh, dung sai, b\u1ec1 m\u1eb7t, \u0111\u1ebfn ph\u01b0\u01a1ng ph\u00e1p th\u1eed.<\/p>\n<p>C\u00e1c ti\u00eau chu\u1ea9n GB\/T th\u01b0\u1eddng g\u1eb7p:<br \/>\n&#8211; T\u1ea5m\/coil:<br \/>\n  &#8211; GB\/T 3280: Th\u00e9p kh\u00f4ng g\u1ec9 c\u00e1n ngu\u1ed9i d\u1ea1ng t\u1ea5m\/d\u1ea3i.<br \/>\n  &#8211; GB\/T 4237: Th\u00e9p kh\u00f4ng g\u1ec9 c\u00e1n n\u00f3ng d\u1ea1ng t\u1ea5m\/d\u1ea3i.<br \/>\n  &#8211; GB\/T 24511: T\u1ea5m\/d\u1ea3i inox cho thi\u1ebft b\u1ecb ch\u1ecbu \u00e1p l\u1ef1c.<br \/>\n&#8211; \u1ed0ng:<br \/>\n  &#8211; GB\/T 12771: \u1ed0ng h\u00e0n inox d\u00f9ng v\u1eadn chuy\u1ec3n ch\u1ea5t l\u1ecfng.<br \/>\n  &#8211; GB\/T 14976: \u1ed0ng \u0111\u00fac (seamless) inox d\u00f9ng v\u1eadn chuy\u1ec3n ch\u1ea5t l\u1ecfng.<br \/>\n&#8211; Thanh\/d\u00e2y:<br \/>\n  &#8211; GB\/T 1220: Thanh, que inox.<br \/>\n  &#8211; GB\/T 4241: D\u00e2y inox l\u00f2 xo.<br \/>\n&#8211; K\u00fd hi\u1ec7u m\u00e1c v\u00e0 th\u00e0nh ph\u1ea7n:<br \/>\n  &#8211; GB\/T 20878: K\u00fd hi\u1ec7u v\u00e0 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 th\u00e9p ch\u1ecbu nhi\u1ec7t.<\/p>\n<h2 id=\"toc-1-quy-doi-nhanh-mac-inox-gb-sang-astmjis-dinh-huong\"><span class=\"ez-toc-section\" id=\"Quy_doi_nhanh_mac_inox_GB_sang_ASTMJIS_dinh_huong\"><\/span>Quy \u0111\u1ed5i nhanh m\u00e1c inox GB sang ASTM\/JIS (\u0111\u1ecbnh h\u01b0\u1edbng)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u01b0u \u00fd: Quy \u0111\u1ed5i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1ec1 th\u00e0nh ph\u1ea7n \u0111i\u1ec3n h\u00ecnh; \u0111i\u1ec1u ki\u1ec7n giao h\u00e0ng, c\u01a1 t\u00ednh, dung sai ph\u1ea3i \u0111\u1ed1i chi\u1ebfu th\u00eam theo ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m c\u1ee5 th\u1ec3.<\/p>\n<p>&#8211; 06Cr19Ni10 \u2248 AISI\/ASTM 304 \u2248 JIS SUS304<br \/>\n&#8211; 022Cr19Ni10 \u2248 304L \u2248 SUS304L<br \/>\n&#8211; 06Cr17Ni12Mo2 \u2248 316 \u2248 SUS316<br \/>\n&#8211; 022Cr17Ni12Mo2 \u2248 316L \u2248 SUS316L<br \/>\n&#8211; 10Cr17 \u2248 430 \u2248 SUS430 (ferritic)<br \/>\n&#8211; 06Cr18Ni11Ti \u2248 321 \u2248 SUS321 (\u1ed5n \u0111\u1ecbnh b\u1eb1ng Ti)<br \/>\n&#8211; 06Cr25Ni20 \u2248 310S \u2248 SUS310S (ch\u1ecbu nhi\u1ec7t)<br \/>\n&#8211; 1Cr17Mn6Ni5N\/12Cr17Mn6Ni5N (nh\u00f3m 201) \u2248 AISI 201 (austenitic Mn cao, Ni th\u1ea5p)<br \/>\n&#8211; 00Cr22Ni5Mo3N\/022Cr22Ni5Mo3N (duplex 2205 g\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng) \u2248 UNS S32205\/S31803<\/p>\n<p>G\u1ee3i \u00fd nh\u1eadn bi\u1ebft k\u00fd hi\u1ec7u GB:<br \/>\n&#8211; Hai s\u1ed1 \u0111\u1ea7u th\u1ec3 hi\u1ec7n h\u00e0m l\u01b0\u1ee3ng C t\u1ed1i \u0111a x100 (06 = 0,06% C; 022 = 0,022% C).<br \/>\n&#8211; Cr, Ni, Mo l\u00e0 nguy\u00ean t\u1ed1 h\u1ee3p kim ch\u00ednh; s\u1ed1 \u0111i k\u00e8m l\u00e0 ph\u1ea7n tr\u0103m danh \u0111\u1ecbnh.<\/p>\n<h2 id=\"toc-2-thanh-phan-va-tinh-chat-so-voi-astmjis-co-gi-khac\"><span class=\"ez-toc-section\" id=\"Thanh_phan_va_tinh_chat_so_voi_ASTMJIS_co_gi_khac\"><\/span>Th\u00e0nh ph\u1ea7n v\u00e0 t\u00ednh ch\u1ea5t: so v\u1edbi ASTM\/JIS c\u00f3 g\u00ec kh\u00e1c?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc: GB\/T 20878 \u0111\u1eb7t d\u1ea3i th\u00e0nh ph\u1ea7n r\u1ea5t g\u1ea7n ASTM A240\/A276 v\u00e0 JIS G4303\/G4304 cho c\u00e1c m\u00e1c th\u00f4ng d\u1ee5ng. V\u00ed d\u1ee5:<br \/>\n  &#8211; 304: C \u22640,08%; Cr ~18\u201320%; Ni ~8\u201311%.<br \/>\n  &#8211; 304L: C \u22640,03%; Cr ~18\u201320%; Ni ~8\u201312%.<br \/>\n  &#8211; 316L: C \u22640,03%; Cr ~16\u201318%; Ni ~10\u201314%; Mo ~2\u20133%.<br \/>\n  &#8211; 201 (\u0111i\u1ec3n h\u00ecnh): C \u22640,15%; Mn cao (5,5\u20137,5%); Ni th\u1ea5p (3,5\u20135,5%); Cr ~16\u201318%.<br \/>\n&#8211; C\u01a1 t\u00ednh v\u00e0 \u0111\u1ed9 b\u1ec1n: GB\/T 3280 v\u00e0 GB\/T 4237 quy \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n k\u00e9o, ch\u1ea3y, gi\u00e3n d\u00e0i theo tr\u1ea1ng th\u00e1i c\u00e1n (annealed, temper rolled) t\u01b0\u01a1ng \u0111\u01b0\u01a1ng m\u1ee9c c\u1ee7a ASTM A240\/A480.<br \/>\n&#8211; Dung sai k\u00edch th\u01b0\u1edbc\/b\u1ec1 m\u1eb7t:<br \/>\n  &#8211; Dung sai \u0111\u1ed9 d\u00e0y\/\u0111\u1ed9 r\u1ed9ng t\u1ea5m theo GB\/T 3280\/4237 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ASTM A480 v\u00e0 JIS G4304\/G4305 \u1edf c\u00e1c c\u1ea5p ph\u1ed5 bi\u1ebfn.<br \/>\n  &#8211; B\u1ec1 m\u1eb7t: 2B, BA, No.1, No.4, HL \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 m\u00f4 t\u1ea3 t\u01b0\u01a1ng t\u1ef1 JIS.<\/p>\n<p>\u00dd ngh\u0129a th\u1ef1c t\u1ebf:<br \/>\n&#8211; Trong \u0111a s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p th\u00f4ng th\u01b0\u1eddng, inox s\u1ea3n xu\u1ea5t theo GB c\u00f3 th\u1ec3 \u0111\u1ea1t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a ASTM\/JIS n\u1ebfu ch\u1ee9ng minh b\u1eb1ng MTC v\u00e0 th\u1eed nghi\u1ec7m \u0111i k\u00e8m.<br \/>\n&#8211; V\u1edbi d\u1ef1 \u00e1n y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t theo ASTM\/JIS\/EN, c\u1ea7n \u201cdual certification\u201d (phi\u1ebfu MTC th\u1ec3 hi\u1ec7n \u0111\u00e1p \u1ee9ng \u0111\u1ed3ng th\u1eddi GB v\u00e0 ASTM\/JIS li\u00ean quan) ho\u1eb7c ph\u00ea duy\u1ec7t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng t\u1eeb t\u01b0 v\u1ea5n\/chu\u0309 \u0111\u00e2\u0300u t\u01b0.<\/p>\n<h2 id=\"toc-3-chon-dung-tieu-chuan-san-pham-gb-theo-hang-muc\"><span class=\"ez-toc-section\" id=\"Chon_dung_tieu_chuan_san_pham_GB_theo_hang_muc\"><\/span>Ch\u1ecdn \u0111\u00fang ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m GB theo h\u1ea1ng m\u1ee5c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Tamcoil_inox\"><\/span>T\u1ea5m\/coil inox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; D\u00f9ng cho: gia c\u00f4ng c\u01a1 kh\u00ed, b\u1ed3n b\u1ec3, c\u1ea5u ki\u1ec7n, b\u1ecdc \u1ed1p.<br \/>\n&#8211; Ch\u1ecdn ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; GB\/T 3280 (c\u00e1n ngu\u1ed9i): \u0111\u1ed9 ph\u1eb3ng v\u00e0 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t t\u1ed1t; d\u00f9ng cho 2B, BA, HL, No.4.<br \/>\n  &#8211; GB\/T 4237 (c\u00e1n n\u00f3ng): No.1; d\u00e0y, nh\u00e1m h\u01a1n; ph\u00f9 h\u1ee3p gia c\u00f4ng b\u1ed3n, b\u00edch.<br \/>\n  &#8211; GB\/T 24511: n\u1ebfu l\u00e0 thi\u1ebft b\u1ecb \u00e1p l\u1ef1c, y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng b\u1ed5 sung.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t th\u00f4ng s\u1ed1:<br \/>\n  &#8211; M\u00e1c: 304\/304L\/316L theo m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c.<br \/>\n  &#8211; Dung sai \u0111\u1ed9 d\u00e0y: theo c\u1ea5p ti\u00eau chu\u1ea9n\/mill; x\u00e1c nh\u1eadn tr\u01b0\u1edbc khi c\u1eaft t\u1ea5m.<br \/>\n  &#8211; B\u1ec1 m\u1eb7t: 2B\/BA\/No.1\/No.4\/HL; y\u00eau c\u1ea7u film PVC n\u1ebfu gia c\u00f4ng b\u1ec1 m\u1eb7t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ong_inox\"><\/span>\u1ed0ng inox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; D\u00f9ng cho: c\u1ea5p tho\u00e1t n\u01b0\u1edbc, th\u1ef1c ph\u1ea9m, d\u01b0\u1ee3c, h\u00f3a ch\u1ea5t.<br \/>\n&#8211; Ch\u1ecdn ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; GB\/T 12771: \u1ed0ng h\u00e0n cho ch\u1ea5t l\u1ecfng; c\u00f3 y\u00eau c\u1ea7u v\u1ec1 m\u00e1c, c\u01a1 t\u00ednh, ki\u1ec3m tra h\u00e0n.<br \/>\n  &#8211; GB\/T 14976: \u1ed0ng \u0111\u00fac cho ch\u1ea5t l\u1ecfng; ch\u1ecbu \u00e1p l\u1ef1c\/\u0103n m\u00f2n cao h\u01a1n.<br \/>\n&#8211; Tham chi\u1ebfu t\u01b0\u01a1ng \u0111\u01b0\u01a1ng \u1ee9ng d\u1ee5ng: ASTM A312\/A269\/A270. Y\u00eau c\u1ea7u nh\u00e0 m\u00e1y cung c\u1ea5p MTC th\u1ec3 hi\u1ec7n \u0111\u00e1p \u1ee9ng th\u1eed kh\u00f4ng ph\u00e1 h\u1ee7y (eddy current, hydrostatic) v\u00e0 vi \u1ea3nh m\u1ed1i h\u00e0n n\u1ebfu c\u1ea7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thanhday\"><\/span>Thanh\/d\u00e2y<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; D\u00f9ng cho tr\u1ee5c, bul\u00f4ng, k\u1ebft c\u1ea5u, l\u00f2 xo.<br \/>\n&#8211; Ch\u1ecdn ti\u00eau chu\u1ea9n:<br \/>\n  &#8211; GB\/T 1220 cho thanh\/que; so s\u00e1nh v\u1edbi ASTM A276\/A479.<br \/>\n  &#8211; X\u00e1c \u0111\u1ecbnh tr\u1ea1ng th\u00e1i giao h\u00e0ng: hot-rolled, cold-drawn, solution annealed.<\/p>\n<h2 id=\"toc-4-doc-dung-ho-so-cocq-va-mtc-khi-mua-inox-gb\"><span class=\"ez-toc-section\" id=\"Doc_dung_ho_so_COCQ_va_MTC_khi_mua_inox_GB\"><\/span>\u0110\u1ecdc \u0111\u00fang h\u1ed3 s\u01a1 CO\/CQ v\u00e0 MTC khi mua inox GB<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; CO (Certificate of Origin):<br \/>\n  &#8211; H\u00e0ng t\u1eeb Trung Qu\u1ed1c v\u1ec1 Vi\u1ec7t Nam th\u01b0\u1eddng xin CO form E (ACFTA) \u0111\u1ec3 h\u01b0\u1edfng \u01b0u \u0111\u00e3i thu\u1ebf nh\u1eadp kh\u1ea9u n\u1ebfu \u0111\u00e1p \u1ee9ng quy t\u1eafc xu\u1ea5t x\u1ee9.<br \/>\n  &#8211; Ki\u1ec3m tra: s\u1ed1 form, con d\u1ea5u c\u01a1 quan c\u1ea5p, HS code, m\u00f4 t\u1ea3 h\u00e0ng kh\u1edbp invoice.<br \/>\n&#8211; CQ\/MTC (Mill Test Certificate):<br \/>\n  &#8211; \u0110\u1ecbnh d\u1ea1ng ph\u1ed5 bi\u1ebfn theo EN 10204 3.1: ghi r\u00f5 ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng (v\u00ed d\u1ee5: GB\/T 3280-2015), m\u00e1c (v\u00ed d\u1ee5 06Cr19Ni10), s\u1ed1 m\u1ebb (heat no.), k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch h\u00f3a h\u1ecdc, c\u01a1 t\u00ednh, \u0111\u1ed9 c\u1ee9ng, th\u1eed kh\u00f4ng ph\u00e1 h\u1ee7y\/b\u1ec1 m\u1eb7t n\u1ebfu c\u00f3.<br \/>\n  &#8211; \u01afu ti\u00ean \u201cdual standard\u201d: v\u00ed d\u1ee5 \u201cGB\/T 3280-2015 and ASTM A240-20 compliant\u201d \u0111\u1ec3 d\u00f9ng cho h\u1ed3 s\u01a1 th\u1ea7u\/d\u1ef1 \u00e1n.<br \/>\n&#8211; Ki\u1ec3m tra ch\u00e9o:<br \/>\n  &#8211; Th\u00e0nh ph\u1ea7n Ni, Cr, Mo \u0111\u1ea1t d\u1ea3i danh \u0111\u1ecbnh c\u1ee7a m\u00e1c.<br \/>\n  &#8211; C c\u1ea5p L (304L\/316L) \u22640,03%.<br \/>\n  &#8211; V\u1edbi 201\/200 series: Mn cao, Ni th\u1ea5p; x\u00e1c nh\u1eadn \u0111\u00fang y\u00eau c\u1ea7u.<br \/>\n  &#8211; B\u1ec1 m\u1eb7t v\u00e0 tr\u1ea1ng th\u00e1i nhi\u1ec7t luy\u1ec7n c\u00f3 ghi r\u00f5 (2B\/BA\/No.1; solution annealed).<\/p>\n<h2 id=\"toc-5-quy-trinh-7-buoc-kiem-tra-lo-inox-gb-nhap-khau\"><span class=\"ez-toc-section\" id=\"Quy_trinh_7_buoc_kiem_tra_lo_inox_GB_nhap_khau\"><\/span>Quy tr\u00ecnh 7 b\u01b0\u1edbc ki\u1ec3m tra l\u00f4 inox GB nh\u1eadp kh\u1ea9u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1) Ki\u1ec3m tra ch\u1ee9ng t\u1eeb: H\u1ee3p \u0111\u1ed3ng, PI\/Invoice, Packing list, CO form E, MTC 3.1.<br \/>\n2) \u0110\u1ed1i chi\u1ebfu ti\u00eau chu\u1ea9n: M\u1ee5c \u201cStandards\u201d tr\u00ean MTC ghi GB\/T ph\u00f9 h\u1ee3p s\u1ea3n ph\u1ea9m; n\u1ebfu d\u1ef1 \u00e1n y\u00eau c\u1ea7u ASTM\/JIS, y\u00eau c\u1ea7u b\u1ed5 sung ch\u1ee9ng nh\u1eadn t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<br \/>\n3) So m\u1eabu k\u00fd hi\u1ec7u: Tr\u00ean t\u1ea5m\/coil\/\u1ed1ng ph\u1ea3i c\u00f3 in\/kh\u1eafc: t\u00ean mill, m\u00e1c (v\u00ed d\u1ee5 06Cr19Ni10), k\u00edch th\u01b0\u1edbc, heat no., ti\u00eau chu\u1ea9n (GB\/T 3280\u2026), h\u01b0\u1edbng c\u00e1n.<br \/>\n4) Test nhanh t\u1ea1i kho:<br \/>\n   &#8211; C\u00e2n \u0111o k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y\/dung sai; ki\u1ec3m b\u1ec1 m\u1eb7t, film b\u1ea3o v\u1ec7.<br \/>\n   &#8211; Ki\u1ec3m m\u00e1c b\u1eb1ng XRF c\u1ea7m tay (n\u1ebfu c\u00f3) \u0111\u1ec3 x\u00e1c nh\u1eadn Ni\/Cr\/Mo.<br \/>\n   &#8211; Kh\u00f4ng d\u1ef1a ho\u00e0n to\u00e0n v\u00e0o \u201cnam ch\u00e2m\u201d: 304\/316 \u1ee7 chu\u1ea9n c\u00f3 th\u1ec3 h\u00fat nh\u1eb9 t\u1ea1i m\u00e9p ho\u1eb7c sau gia c\u00f4ng ngu\u1ed9i.<br \/>\n5) Ki\u1ec3m c\u01a1 t\u00ednh m\u1eabu (n\u1ebfu critical): k\u00e9o, u\u1ed1n, \u0111\u1ed9 c\u1ee9ng theo GB\/T t\u01b0\u01a1ng \u1ee9ng ho\u1eb7c ASTM A370.<br \/>\n6) Ki\u1ec3m m\u1ed1i h\u00e0n \u1ed1ng: soi n\u1ed9i soi, th\u1eed k\u00edn\/\u00e1p l\u1ef1c theo GB\/T 12771\/14976.<br \/>\n7) L\u1eadp bi\u00ean b\u1ea3n nh\u1eadp kho: ch\u1ee5p d\u1ea5u nhi\u1ec7t, heat no., l\u01b0u MTC \u0111i\u1ec7n t\u1eed, g\u00e1n truy xu\u1ea5t l\u00f4.<\/p>\n<h2 id=\"toc-6-luu-y-chon-mac-va-ung-dung-thuc-te\"><span class=\"ez-toc-section\" id=\"Luu_y_chon_mac_va_ung_dung_thuc_te\"><\/span>L\u01b0u \u00fd ch\u1ecdn m\u00e1c v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 201\/200 series:<br \/>\n  &#8211; \u01afu \u0111i\u1ec3m: gi\u00e1 r\u1ebb, \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc kh\u00e1, ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t kh\u00f4, \u0111\u1ed3 gia d\u1ee5ng, k\u1ebft c\u1ea5u nh\u1eb9 trong nh\u00e0.<br \/>\n  &#8211; H\u1ea1n ch\u1ebf: Ni th\u1ea5p, ch\u1ed1ng \u0103n m\u00f2n k\u00e9m m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n\/axit; d\u1ec5 g\u1ec9 n\u00e2u \u1edf ven bi\u1ec3n\/ngo\u00e0i tr\u1eddi.<br \/>\n&#8211; 304\/304L:<br \/>\n  &#8211; Ph\u1ed5 bi\u1ebfn nh\u1ea5t cho c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m, n\u01b0\u1edbc s\u1ea1ch, b\u1ed3n b\u1ec3, lan can ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb.<br \/>\n  &#8211; 304L: h\u00e0n nhi\u1ec1u, gi\u1ea3m nguy c\u01a1 \u0103n m\u00f2n tinh gi\u1edbi (C th\u1ea5p).<br \/>\n&#8211; 316\/316L:<br \/>\n  &#8211; M\u00f4i tr\u01b0\u1eddng clorua, ven bi\u1ec3n, h\u00f3a ch\u1ea5t nh\u1eb9; thi\u1ebft b\u1ecb y t\u1ebf, d\u01b0\u1ee3c, F&#038;B kh\u1eaft khe.<br \/>\n&#8211; 430 (ferritic):<br \/>\n  &#8211; H\u00fat nam ch\u00e2m, ch\u1ed1ng \u0103n m\u00f2n v\u1eeba; d\u00f9ng \u1ed1p trang tr\u00ed, hood b\u1ebfp, chi ti\u1ebft kh\u00f4ng y\u00eau c\u1ea7u h\u00e0n ph\u1ee9c t\u1ea1p.<br \/>\n&#8211; 321, 310S:<br \/>\n  &#8211; 321 cho nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh c\u00f3 chu k\u1ef3 nhi\u1ec7t\/h\u00e0n; 310S cho nhi\u1ec7t \u0111\u1ed9 cao.<\/p>\n<h2 id=\"toc-7-so-sanh-nhanh-gb-voi-astmjis-trong-mua-hang\"><span class=\"ez-toc-section\" id=\"So_sanh_nhanh_GB_voi_ASTMJIS_trong_mua_hang\"><\/span>So s\u00e1nh nhanh GB v\u1edbi ASTM\/JIS trong mua h\u00e0ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; T\u00ednh s\u1eb5n c\u00f3: H\u00e0ng GB t\u1eeb c\u00e1c mill Trung Qu\u1ed1c phong ph\u00fa v\u1ec1 k\u00edch c\u1ee1, th\u1eddi gian giao nhanh, chi ph\u00ed c\u1ea1nh tranh.<br \/>\n&#8211; T\u00ednh t\u01b0\u01a1ng th\u00edch h\u1ed3 s\u01a1: D\u1ef1 \u00e1n qu\u1ed1c t\u1ebf\/nh\u00e0 m\u00e1y FDI th\u01b0\u1eddng ghi r\u00f5 ASTM\/JIS; h\u00e3y y\u00eau c\u1ea7u MTC \u201cdual cert\u201d ho\u1eb7c b\u00e1o c\u00e1o so s\u00e1nh ti\u00eau chu\u1ea9n.<br \/>\n&#8211; Dung sai\/b\u1ec1 m\u1eb7t: GB\/T 3280\/4237 c\u00f3 c\u1ea5p dung sai t\u01b0\u01a1ng \u0111\u01b0\u01a1ng n\u1ebfu ch\u1ecdn \u0111\u00fang \u201cprecision class\u201d; c\u1ea7n x\u00e1c nh\u1eadn tr\u01b0\u1edbc gia c\u00f4ng ch\u00ednh x\u00e1c.<br \/>\n&#8211; Truy xu\u1ea5t ngu\u1ed3n g\u1ed1c: \u01afu ti\u00ean mill l\u1edbn (TISCO, BAOSTEEL, TSINGSHAN\/TSM, LISCO\u2026) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o MTC chu\u1ea9n, l\u00f4 \u1ed5n \u0111\u1ecbnh.<\/p>\n<h2 id=\"toc-8-bay-thuong-gap-va-cach-tranh\"><span class=\"ez-toc-section\" id=\"Bay_thuong_gap_va_cach_tranh\"><\/span>B\u1eaby th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Nh\u1ea7m 201 th\u00e0nh 304: Ch\u1ec9 th\u1eed nam ch\u00e2m l\u00e0 kh\u00f4ng \u0111\u1ee7; lu\u00f4n ki\u1ec3m Ni b\u1eb1ng XRF ho\u1eb7c \u0111\u1ed1i chi\u1ebfu MTC \u0111\u00e1ng tin c\u1eady.<br \/>\n&#8211; 304 \u201cnon-standard\u201d (Ni th\u1ea5p): M\u1ed9t s\u1ed1 l\u00f4 304 gi\u00e1 r\u1ebb c\u00f3 Ni d\u01b0\u1edbi d\u1ea3i; ki\u1ec3m th\u00e0nh ph\u1ea7n tr\u00ean MTC v\u00e0 th\u1eed \u0111\u1ed9c l\u1eadp khi c\u1ea7n.<br \/>\n&#8211; Dung sai m\u1ecfng h\u01a1n c\u00f4ng b\u1ed1: \u0110o t\u1ea1i nhi\u1ec1u \u0111i\u1ec3m; x\u00e1c nh\u1eadn c\u1ea5p dung sai v\u00e0 quy \u01b0\u1edbc tr\u1ecdng l\u01b0\u1ee3ng tr\u01b0\u1edbc khi ch\u1ed1t gi\u00e1.<br \/>\n&#8211; B\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u00fang y\u00eau c\u1ea7u: BA vs 2B\/No.4\/HL kh\u00e1c bi\u1ec7t r\u00f5; y\u00eau c\u1ea7u m\u1eabu\/\u1ea3nh QC tr\u01b0\u1edbc khi giao h\u00e0ng.<\/p>\n<h2 id=\"toc-9-chien-luoc-mua-inox-gb-hieu-qua\"><span class=\"ez-toc-section\" id=\"Chien_luoc_mua_inox_GB_hieu_qua\"><\/span>Chi\u1ebfn l\u01b0\u1ee3c mua inox GB hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; X\u00e1c \u0111\u1ecbnh ti\u00eau chu\u1ea9n \u0111\u1ea7u v\u00e0o theo s\u1ea3n ph\u1ea9m: GB\/T 3280 hay 4237 cho t\u1ea5m; GB\/T 12771\/14976 cho \u1ed1ng; GB\/T 1220 cho thanh.<br \/>\n&#8211; Ch\u1ed1t m\u00e1c v\u00e0 \u0111i\u1ec1u ki\u1ec7n giao h\u00e0ng: 304L\/316L n\u1ebfu c\u00f3 h\u00e0n nhi\u1ec1u; b\u1ec1 m\u1eb7t 2B\/BA\/No.1; film b\u1ea3o v\u1ec7; c\u1ea5p dung sai.<br \/>\n&#8211; Y\u00eau c\u1ea7u MTC 3.1 k\u00e8m ph\u00e2n t\u00edch nhi\u1ec7t (heat analysis) v\u00e0 n\u1ebfu c\u1ea7n, th\u1eed b\u1ed5 sung (PMI, c\u01a1 t\u00ednh).<br \/>\n&#8211; \u01afu ti\u00ean nh\u00e0 cung c\u1ea5p c\u00f3 truy xu\u1ea5t ngu\u1ed3n g\u1ed1c, kho s\u1eb5n v\u00e0 d\u1ecbch v\u1ee5 c\u1eaft x\u1ebb chu\u1ea9n x\u00e1c.<br \/>\n&#8211; V\u1edbi d\u1ef1 \u00e1n y\u00eau c\u1ea7u ASTM\/JIS: \u0111\u00e0m ph\u00e1n \u201cdual cert\u201d ngay t\u1eeb ch\u00e0o gi\u00e1.<\/p>\n<h2 id=\"toc-10-thuat-ngu-can-biet-khi-doc-ho-so-gb\"><span class=\"ez-toc-section\" id=\"Thuat_ngu_can_biet_khi_doc_ho_so_GB\"><\/span>Thu\u1eadt ng\u1eef c\u1ea7n bi\u1ebft khi \u0111\u1ecdc h\u1ed3 s\u01a1 GB<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; GB\/T: ti\u00eau chu\u1ea9n khuy\u1ebfn ngh\u1ecb (technical).<br \/>\n&#8211; 2B, BA, No.1, No.4, HL: m\u00e3 b\u1ec1 m\u1eb7t gia c\u00f4ng.<br \/>\n&#8211; Heat No. (s\u1ed1 m\u1ebb luy\u1ec7n): \u0111\u1ecbnh danh truy xu\u1ea5t v\u1eadt li\u1ec7u.<br \/>\n&#8211; Solution annealed (SA): \u1ee7 h\u00f2a tan, ph\u1ee5c h\u1ed3i t\u1ed5 ch\u1ee9c austenite ti\u00eau chu\u1ea9n.<br \/>\n&#8211; EN 10204 3.1: c\u1ea5p ch\u1ee9ng ch\u1ec9 ch\u1ea5t l\u01b0\u1ee3ng do b\u1ed9 ph\u1eadn QC c\u1ee7a nh\u00e0 m\u00e1y x\u00e1c nh\u1eadn.<\/p>\n<h2 id=\"toc-11-cau-hoi-thuong-gap\"><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u1ef1 \u00e1n ghi ASTM, d\u00f9ng h\u00e0ng GB \u0111\u01b0\u1ee3c kh\u00f4ng?<br \/>\n  &#8211; C\u00f3 th\u1ec3, n\u1ebfu ch\u1ee9ng minh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng b\u1eb1ng MTC\/\u0111\u1ed1i chi\u1ebfu ti\u00eau chu\u1ea9n v\u00e0 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n\/chu\u0309 \u0111\u00e2\u0300u t\u01b0 ph\u00ea duy\u1ec7t. An to\u00e0n nh\u1ea5t l\u00e0 \u201cdual certification\u201d.<br \/>\n&#8211; H\u00e0ng GB c\u00f3 r\u1ebb h\u01a1n nhi\u1ec1u kh\u00f4ng?<br \/>\n  &#8211; Th\u01b0\u1eddng r\u1ebb h\u01a1n 5\u201315% t\u00f9y m\u00e1c\/b\u1ec1 m\u1eb7t\/nh\u00e0 m\u00e1y v\u00e0 th\u1eddi \u0111i\u1ec3m nickel. \u0110\u1eebng \u0111\u00e1nh \u0111\u1ed5i b\u1eb1ng vi\u1ec7c h\u1ea1 m\u00e1c hay m\u1ecfng dung sai.<br \/>\n&#8211; Ki\u1ec3m nghi\u1ec7m \u0111\u1ed9c l\u1eadp c\u00f3 c\u1ea7n thi\u1ebft?<br \/>\n  &#8211; V\u1edbi l\u00f4 gi\u00e1 tr\u1ecb l\u1edbn\/\u1ee9ng d\u1ee5ng critical, khuy\u1ebfn ngh\u1ecb PMI (XRF) v\u00e0 k\u00e9o\/u\u1ed1n m\u1eabu theo ASTM A370 ho\u1eb7c GB\/T li\u00ean quan.<\/p>\n<h2 id=\"toc-12-tai-lieu-tham-khao\"><span class=\"ez-toc-section\" id=\"Tai_lieu_tham_khao\"><\/span>T\u00e0i li\u1ec7u tham kh\u1ea3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; GB\/T 3280-2015: Cold-rolled stainless steel plate, sheet and strip. Standardization Administration of China (SAC).<br \/>\n&#8211; GB\/T 4237-2015: Hot-rolled stainless steel plate, sheet and strip. SAC.<br \/>\n&#8211; GB\/T 20878 (phi\u00ean b\u1ea3n hi\u1ec7n h\u00e0nh): Stainless and heat-resisting steels\u2014Designations and chemical composition. SAC.<br \/>\n&#8211; GB\/T 12771-2008\/2019: Welded stainless steel pipes for liquid service. SAC.<br \/>\n&#8211; GB\/T 14976-2012\/2021: Seamless stainless steel pipes for fluid transport. SAC.<br \/>\n&#8211; ASTM A240\/A480, A312; JIS G4304\/G4305. \u1ee6y ban ASTM\/JIS.<br \/>\n(\u0110\u1ed9c gi\u1ea3 c\u00f3 th\u1ec3 tra c\u1ee9u v\u0103n b\u1ea3n t\u1ea1i trang ti\u00eau chu\u1ea9n qu\u1ed1c gia Trung Qu\u1ed1c ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u ASTM\/JIS ch\u00ednh th\u1ee9c.)<\/p>\n<h2 id=\"toc-13-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; Ti\u00eau chu\u1ea9n GB cho inox bao ph\u1ee7 \u0111\u1ea7y \u0111\u1ee7 m\u00e1c, t\u1ea5m\/\u1ed1ng\/thanh, c\u01a1 t\u00ednh, dung sai v\u00e0 b\u1ec1 m\u1eb7t, c\u00f3 t\u00ednh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng cao v\u1edbi ASTM\/JIS khi ch\u1ecdn \u0111\u00fang ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m.<br \/>\n&#8211; Mua \u0111\u00fang c\u1ea7n: x\u00e1c \u0111\u1ecbnh ti\u00eau chu\u1ea9n GB\/T \u00e1p d\u1ee5ng, quy \u0111\u1ed5i m\u00e1c ch\u00ednh x\u00e1c (06Cr19Ni10 \u2248 304, 022Cr17Ni12Mo2 \u2248 316L\u2026), \u0111\u1ecdc k\u1ef9 MTC 3.1, ki\u1ec3m tra Ni\/Cr\/Mo b\u1eb1ng PMI khi c\u1ea7n, v\u00e0 th\u1ed1ng nh\u1ea5t b\u1ec1 m\u1eb7t\u2013dung sai ngay t\u1eeb b\u00e1o gi\u00e1.<br \/>\n&#8211; Tr\u00e1nh b\u1eaby: nh\u1ea7m 201 v\u1edbi 304, m\u00e1c \u201cnon-standard\u201d, dung sai m\u1ecfng v\u00e0 sai b\u1ec1 m\u1eb7t.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn chu\u1ea9n GB ph\u00f9 h\u1ee3p, \u0111\u1ed1i chi\u1ebfu ASTM\/JIS v\u00e0 nh\u1eadn b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t cho t\u1ea5m\/\u1ed1ng\/thanh inox? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec3u \u0111\u00fang ti\u00eau chu\u1ea9n GB c\u1ee7a Trung Qu\u1ed1c cho inox: quy \u0111\u1ed5i sang ASTM\/JIS, \u0111\u1ecdc MTC-CO\/CQ, ch\u1ecdn ti\u00eau chu\u1ea9n t\u1ea5m\/\u1ed1ng, ki\u1ec3m tra th\u00e0nh ph\u1ea7n v\u00e0 tr\u00e1nh mua nh\u1ea7m.<\/p>\n","protected":false},"author":7,"featured_media":1046,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2377","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\/2377","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=2377"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2377\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1046"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}