{"id":2418,"date":"2026-08-08T12:33:46","date_gmt":"2026-08-08T05:33:46","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/"},"modified":"2026-08-08T12:33:46","modified_gmt":"2026-08-08T05:33:46","slug":"chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/","title":{"rendered":"Chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 Inox 304 ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch nh\u1eadn bi\u1ebft, ph\u00f2ng tr\u00e1nh"},"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;2418&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;Chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 Inox 304 ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch nh\u1eadn bi\u1ebft, ph\u00f2ng tr\u00e1nh&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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Vi_sao_inox_304_bi_lam_gia_nhieu\" >V\u00ec sao inox 304 b\u1ecb l\u00e0m gi\u1ea3 nhi\u1ec1u?<\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Cac_chieu_tro_lam_gia_inox_304_pho_bien_tren_thi_truong\" >C\u00e1c chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 inox 304 ph\u1ed5 bi\u1ebfn tr\u00ean th\u1ecb tr\u01b0\u1eddng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#1_Trao_mac_201202_thanh_%E2%80%9CSUS304304%E2%80%9D\" >1) Tr\u00e1o m\u00e1c 201\/202 th\u00e0nh \u201cSUS304\/304\u201d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#2_Danh_bongma_hoan_thien_de_%E2%80%9Cgia_van_304%E2%80%9D\" >2) \u0110\u00e1nh b\u00f3ng\/m\u1ea1 ho\u00e0n thi\u1ec7n \u0111\u1ec3 \u201cgi\u1ea3 v\u00e2n 304\u201d<\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#3_Tron_lo_60%E2%80%9380_304_phan_con_lai_201430\" >3) Tr\u1ed9n l\u00f4: 60\u201380% 304 + ph\u1ea7n c\u00f2n l\u1ea1i 201\/430<\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#4_Giao_thieu_do_day_sai_chuan_dung_sai\" >4) Giao thi\u1ebfu \u0111\u1ed9 d\u00e0y, sai chu\u1ea9n dung sai<\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#5_Giay_chung_nhan_MTCPDF_gia_hoac_bi_%E2%80%9Cche%E2%80%9D\" >5) Gi\u1ea5y ch\u1ee9ng nh\u1eadn MTC\/PDF gi\u1ea3 ho\u1eb7c b\u1ecb \u201cch\u1ebf\u201d<\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#6_Loi_dung_%E2%80%9Cnam_cham%E2%80%9D_de_danh_lua\" >6) L\u1ee3i d\u1ee5ng \u201cnam ch\u00e2m\u201d \u0111\u1ec3 \u0111\u00e1nh l\u1eeba<\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#7_Nham_lan_co_y_giua_304_va_304L\" >7) Nh\u1ea7m l\u1eabn c\u1ed1 \u00fd gi\u1eefa 304 v\u00e0 304L<\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#8_Bao_bi_nhan_tem_gia\" >8) Bao b\u00ec, nh\u00e3n, tem gi\u1ea3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#9_Giao_hang_%E2%80%9Cpha_lo%E2%80%9D_theo_vi_tri_su_dung\" >9) Giao h\u00e0ng \u201cpha l\u00f4\u201d theo v\u1ecb tr\u00ed s\u1eed d\u1ee5ng<\/a><\/li><\/ul><\/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\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Dau_hieu_nhan_biet_nhanh_trong_thuc_te\" >D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft nhanh trong 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-14\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Quy_trinh_5_buoc_kiem_tra_nhanh_tai_xuong\" >Quy tr\u00ecnh 5 b\u01b0\u1edbc ki\u1ec3m tra nhanh t\u1ea1i x\u01b0\u1edfng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#B1_Kiem_tra_ho_so_va_nhan\" >B1. Ki\u1ec3m tra h\u1ed3 s\u01a1 v\u00e0 nh\u00e3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#B2_Do_kich_thuoc_va_can\" >B2. \u0110o k\u00edch th\u01b0\u1edbc v\u00e0 c\u00e2n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#B3_Thu_nam_cham_sang_loc\" >B3. Th\u1eed nam ch\u00e2m s\u00e0ng l\u1ecdc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#B4_Thu_acid_diem_spot_test_co_kiem_soat\" >B4. Th\u1eed acid \u0111i\u1ec3m (spot test) c\u00f3 ki\u1ec3m so\u00e1t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#B5_PMI_bang_XRF_khuyen_nghi\" >B5. PMI b\u1eb1ng XRF (khuy\u1ebfn ngh\u1ecb)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Kiem_dinh_chuyen_sau_khi_du_an_quan_trong\" >Ki\u1ec3m \u0111\u1ecbnh chuy\u00ean s\u00e2u khi d\u1ef1 \u00e1n quan tr\u1ecdng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Bien_phap_phong_tranh_va_mua_hang_an_toan\" >Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u00e1nh v\u00e0 mua h\u00e0ng an to\u00e0n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#1_Chuan_hoa_yeu_cau_ky_thuat_trong_POhop_dong\" >1) Chu\u1ea9n h\u00f3a y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt trong PO\/h\u1ee3p \u0111\u1ed3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#2_Yeu_cau_tai_lieu_va_truy_xuat\" >2) Y\u00eau c\u1ea7u t\u00e0i li\u1ec7u v\u00e0 truy xu\u1ea5t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#3_Quy_trinh_IQC_kiem_tra_dau_vao\" >3) Quy tr\u00ecnh IQC (ki\u1ec3m tra \u0111\u1ea7u v\u00e0o)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#4_Quan_ly_ton_kho_tranh_tron_lan\" >4) Qu\u1ea3n l\u00fd t\u1ed3n kho tr\u00e1nh tr\u1ed9n l\u1eabn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#5_Lua_chon_nha_cung_cap_uy_tin\" >5) L\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p uy t\u00edn<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Vi_du_thuc_te_rui_ro_khi_dung_%E2%80%9C304_gia%E2%80%9D\" >V\u00ed d\u1ee5 th\u1ef1c t\u1ebf r\u1ee7i ro khi d\u00f9ng \u201c304 gi\u1ea3\u201d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Tham_khao_tieu_chuan_va_nguon_chuyen_mon\" >Tham kh\u1ea3o ti\u00eau chu\u1ea9n v\u00e0 ngu\u1ed3n chuy\u00ean m\u00f4n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#Checklist_nhanh_truoc_khi_nhap_hang_%E2%80%9C304%E2%80%9D\" >Checklist nhanh tr\u01b0\u1edbc khi nh\u1eadp h\u00e0ng \u201c304\u201d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/inoxcuongthinh.com\/chieu-tro-lam-gia-inox-304-pho-bien-va-cach-nhan-biet-phong-tranh\/#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-vi-sao-inox-304-bi-lam-gia-nhieu\">V\u00ec sao inox 304 b\u1ecb l\u00e0m gi\u1ea3 nhi\u1ec1u?<\/a><\/li>\n<li><a href=\"#toc-1-cac-chieu-tro-lam-gia-inox-304-pho-bien-tren-thi-t\">C\u00e1c chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 inox 304 ph\u1ed5 bi\u1ebfn tr\u00ean th\u1ecb tr\u01b0\u1eddng<\/a><\/li>\n<li><a href=\"#toc-2-dau-hieu-nhan-biet-nhanh-trong-thuc-te\">D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft nhanh trong th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-3-quy-trinh-5-buoc-kiem-tra-nhanh-tai-xuong\">Quy tr\u00ecnh 5 b\u01b0\u1edbc ki\u1ec3m tra nhanh t\u1ea1i x\u01b0\u1edfng<\/a><\/li>\n<li><a href=\"#toc-4-kiem-dinh-chuyen-sau-khi-du-an-quan-trong\">Ki\u1ec3m \u0111\u1ecbnh chuy\u00ean s\u00e2u khi d\u1ef1 \u00e1n quan tr\u1ecdng<\/a><\/li>\n<li><a href=\"#toc-5-bien-phap-phong-tranh-va-mua-hang-an-toan\">Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u00e1nh v\u00e0 mua h\u00e0ng an to\u00e0n<\/a><\/li>\n<li><a href=\"#toc-6-vi-du-thuc-te-rui-ro-khi-dung-304-gia\">V\u00ed d\u1ee5 th\u1ef1c t\u1ebf r\u1ee7i ro khi d\u00f9ng \u201c304 gi\u1ea3\u201d<\/a><\/li>\n<li><a href=\"#toc-7-tham-khao-tieu-chuan-va-nguon-chuyen-mon\">Tham kh\u1ea3o ti\u00eau chu\u1ea9n v\u00e0 ngu\u1ed3n chuy\u00ean m\u00f4n<\/a><\/li>\n<li><a href=\"#toc-8-checklist-nhanh-truoc-khi-nhap-hang-304\">Checklist nhanh tr\u01b0\u1edbc khi nh\u1eadp h\u00e0ng \u201c304\u201d<\/a><\/li>\n<li><a href=\"#toc-9-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox 304 l\u00e0 m\u00e1c th\u00e9p kh\u00f4ng g\u1ec9 th\u00f4ng d\u1ee5ng nh\u1ea5t trong c\u01a1 kh\u00ed, th\u1ef1c ph\u1ea9m, ki\u1ebfn tr\u00fac\u2026 n\u00ean th\u01b0\u1eddng b\u1ecb l\u00e0m gi\u1ea3 ho\u1eb7c \u201ch\u1ea1 chu\u1ea9n\u201d \u0111\u1ec3 b\u00e1n nh\u01b0 304. B\u00e0i vi\u1ebft n\u00e0y ch\u1ec9 ra c\u00e1c chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 ph\u1ed5 bi\u1ebfn, c\u00e1ch nh\u1eadn bi\u1ebft th\u1ef1c t\u1ebf, quy tr\u00ecnh ki\u1ec3m \u0111\u1ecbnh v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u00e1nh cho k\u1ef9 s\u01b0, th\u1ea7u thi c\u00f4ng v\u00e0 ch\u1ee7 x\u01b0\u1edfng. Ch\u1ee7 \u0111\u1ec1 n\u00e0y c\u0169ng l\u00e0 m\u1ea3nh gh\u00e9p quan tr\u1ecdng trong h\u1ec7 \u201cPh\u00e2n bi\u1ec7t v\u00e0 Ki\u1ec3m \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng inox\u201d nh\u01b0ng b\u00e0i vi\u1ebft \u0111\u1ee7 \u0111\u1ed9c l\u1eadp \u0111\u1ec3 b\u1ea1n \u00e1p d\u1ee5ng ngay.<\/p>\n<h2 id=\"toc-0-vi-sao-inox-304-bi-lam-gia-nhieu\"><span class=\"ez-toc-section\" id=\"Vi_sao_inox_304_bi_lam_gia_nhieu\"><\/span>V\u00ec sao inox 304 b\u1ecb l\u00e0m gi\u1ea3 nhi\u1ec1u?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 304 (UNS S30400\/EN 1.4301) ch\u1ee9a Cr 18\u201320% v\u00e0 Ni 8\u201310.5%, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 d\u1ec5 gia c\u00f4ng, gi\u00e1 cao h\u01a1n 201\/202\/430.<br \/>\n&#8211; Ch\u00eanh l\u1ec7ch gi\u00e1 304 so v\u1edbi 201\/202 th\u01b0\u1eddng 20\u201340% t\u00f9y th\u1eddi \u0111i\u1ec3m th\u1ecb tr\u01b0\u1eddng. L\u1ee3i nhu\u1eadn l\u1edbn khi\u1ebfn nhi\u1ec1u c\u01a1 s\u1edf tr\u00e1o m\u00e1c ho\u1eb7c h\u1ea1 th\u00f4ng s\u1ed1.<\/p>\n<p>Tham chi\u1ebfu th\u00e0nh ph\u1ea7n (chu\u1ea9n): ASTM A240, EN 10088; t\u00e0i li\u1ec7u nh\u00e0 s\u1ea3n xu\u1ea5t nh\u01b0 Outokumpu, Aperam; Nickel Institute, worldstainless.<\/p>\n<h2 id=\"toc-1-cac-chieu-tro-lam-gia-inox-304-pho-bien-tren-thi-t\"><span class=\"ez-toc-section\" id=\"Cac_chieu_tro_lam_gia_inox_304_pho_bien_tren_thi_truong\"><\/span>C\u00e1c chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 inox 304 ph\u1ed5 bi\u1ebfn tr\u00ean th\u1ecb tr\u01b0\u1eddng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Trao_mac_201202_thanh_%E2%80%9CSUS304304%E2%80%9D\"><\/span>1) Tr\u00e1o m\u00e1c 201\/202 th\u00e0nh \u201cSUS304\/304\u201d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; In\/d\u1eadp \u201cSUS304\u201d l\u00ean \u1ed1ng\/h\u1ed9p 201\/202 ho\u1eb7c d\u00f9ng tem cu\u1ed9n gi\u1ea3.<br \/>\n&#8211; H\u1eadu qu\u1ea3: \u0103n m\u00f2n s\u1edbm (\u1ed1 tr\u00e0, r\u1ed7 pitting), m\u1ed1i h\u00e0n x\u1ec9n nhanh, \u0111\u1eb7c bi\u1ec7t \u1edf m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n ho\u1eb7c h\u00f3a ch\u1ea5t nh\u1eb9.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Danh_bongma_hoan_thien_de_%E2%80%9Cgia_van_304%E2%80%9D\"><\/span>2) \u0110\u00e1nh b\u00f3ng\/m\u1ea1 ho\u00e0n thi\u1ec7n \u0111\u1ec3 \u201cgi\u1ea3 v\u00e2n 304\u201d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; \u0110\u00e1nh b\u00f3ng g\u01b0\u01a1ng 8K, hairline s\u00e2u, ho\u1eb7c ph\u1ee7 l\u1edbp m\u1ea1 m\u1ecfng khi\u1ebfn b\u1ec1 m\u1eb7t gi\u1ed1ng 304 m\u1edbi.<br \/>\n&#8211; Sau th\u1eddi gian ng\u1eafn ngo\u00e0i tr\u1eddi ho\u1eb7c g\u1ea7n bi\u1ec3n, b\u1ec1 m\u1eb7t \u0111\u1ed5i m\u00e0u, loang \u1ed1.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Tron_lo_60%E2%80%9380_304_phan_con_lai_201430\"><\/span>3) Tr\u1ed9n l\u00f4: 60\u201380% 304 + ph\u1ea7n c\u00f2n l\u1ea1i 201\/430<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; H\u00e0ng giao cu\u1ed9n\/thanh s\u1ed1 l\u01b0\u1ee3ng l\u1edbn d\u1ec5 l\u1eabn v\u1eadt li\u1ec7u kh\u00e1c m\u00e1c.<br \/>\n&#8211; Khi s\u1ea3n xu\u1ea5t, chi ti\u1ebft t\u1eeb ph\u00f4i kh\u00e1c m\u00e1c h\u1ecfng s\u1edbm l\u00e0m h\u1ecfng \u0111\u1ed3ng b\u1ed9 c\u1ea3 c\u00f4ng tr\u00ecnh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Giao_thieu_do_day_sai_chuan_dung_sai\"><\/span>4) Giao thi\u1ebfu \u0111\u1ed9 d\u00e0y, sai chu\u1ea9n dung sai<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; B\u00e1n \u201ct\u1ea5m 1.0 mm\u201d th\u1ef1c t\u1ebf 0.85\u20130.92 mm; \u1ed1ng\/h\u1ed9p th\u00e0nh m\u1ecfng h\u01a1n ni\u00eam y\u1ebft.<br \/>\n&#8211; C\u1eaft g\u00f3c tr\u1ecdng l\u01b0\u1ee3ng, \u1ea3nh h\u01b0\u1edfng ch\u1ecbu l\u1ef1c, han g\u1ec9 m\u00e9p c\u1eaft nhanh h\u01a1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Giay_chung_nhan_MTCPDF_gia_hoac_bi_%E2%80%9Cche%E2%80%9D\"><\/span>5) Gi\u1ea5y ch\u1ee9ng nh\u1eadn MTC\/PDF gi\u1ea3 ho\u1eb7c b\u1ecb \u201cch\u1ebf\u201d<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Sao ch\u00e9p logo nh\u00e0 m\u00e1y, s\u1ed1 heat gi\u1ea3; th\u00f4ng s\u1ed1 c\u01a1 l\u00fd \u201c\u0111\u1eb9p qu\u00e1 m\u1ee9c\u201d; kh\u00f4ng \u0111\u1ed1i chi\u1ebfu \u0111\u01b0\u1ee3c v\u1edbi tem cu\u1ed9n.<br \/>\n&#8211; MTC kh\u00f4ng kh\u1edbp ti\u00eau chu\u1ea9n \u0111\u1eb7t h\u00e0ng (v\u00ed d\u1ee5 \u0111\u1eb7t ASTM A240 nh\u01b0ng MTC ghi JIS m\u01a1 h\u1ed3).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Loi_dung_%E2%80%9Cnam_cham%E2%80%9D_de_danh_lua\"><\/span>6) L\u1ee3i d\u1ee5ng \u201cnam ch\u00e2m\u201d \u0111\u1ec3 \u0111\u00e1nh l\u1eeba<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; B\u00e1n 201 \u0111\u00e3 \u1ee7, t\u1eeb t\u00ednh y\u1ebfu; ng\u01b0\u1eddi mua th\u1eed nam ch\u00e2m th\u1ea5y \u201ckh\u00f4ng h\u00fat\u201d r\u1ed3i tin l\u00e0 304.<br \/>\n&#8211; L\u01b0u \u00fd: 304 \u1ee7 m\u1ec1m g\u1ea7n nh\u01b0 kh\u00f4ng nhi\u1ec5m t\u1eeb; 304 sau c\u00e1n ngu\u1ed9i c\u00f3 th\u1ec3 h\u01a1i h\u00fat nh\u1eb9. Nam ch\u00e2m ch\u1ec9 l\u00e0 ki\u1ec3m tra s\u00e0ng l\u1ecdc, kh\u00f4ng kh\u1eb3ng \u0111\u1ecbnh m\u00e1c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_Nham_lan_co_y_giua_304_va_304L\"><\/span>7) Nh\u1ea7m l\u1eabn c\u1ed1 \u00fd gi\u1eefa 304 v\u00e0 304L<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; G\u1eafn m\u00e1c \u201c304L\u201d (C th\u1ea5p) \u0111\u1ec3 che gi\u1ea5u Ni\/Cr thi\u1ebfu chu\u1ea9n.<br \/>\n&#8211; 304L kh\u00e1c 304 ch\u1ee7 y\u1ebfu v\u1ec1 h\u00e0m l\u01b0\u1ee3ng C, ch\u1ed1ng nh\u1ea1y c\u1ea3m \u0103n m\u00f2n m\u1ed1i h\u00e0n; Cr\/Ni v\u1eabn ph\u1ea3i \u0111\u1ea1t chu\u1ea9n. H\u1ea1 Ni\/Cr l\u00e0 sai chu\u1ea9n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_Bao_bi_nhan_tem_gia\"><\/span>8) Bao b\u00ec, nh\u00e3n, tem gi\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Cu\u1ed9n\/t\u1ea5m \u0111\u00f3ng g\u00f3i gi\u1ed1ng h\u00e3ng l\u1edbn, tem ph\u1ee5 ti\u1ebfng Anh sai ch\u00ednh t\u1ea3, m\u00e3 QR kh\u00f4ng truy v\u1ebft \u0111\u01b0\u1ee3c.<br \/>\n&#8211; Tem kh\u00f4ng c\u00f3 heat number\/lot ho\u1eb7c b\u1ecb tr\u00f9ng gi\u1eefa c\u00e1c ki\u1ec7n kh\u00e1c nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"9_Giao_hang_%E2%80%9Cpha_lo%E2%80%9D_theo_vi_tri_su_dung\"><\/span>9) Giao h\u00e0ng \u201cpha l\u00f4\u201d theo v\u1ecb tr\u00ed s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; V\u1ecb tr\u00ed khu\u1ea5t, trong nh\u00e0 d\u00f9ng 201; v\u1ecb tr\u00ed l\u1ed9 thi\u00ean giao 304. H\u00e0ng nh\u1eadn \u0111\u1ee7 s\u1ed1 l\u01b0\u1ee3ng nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n<h2 id=\"toc-2-dau-hieu-nhan-biet-nhanh-trong-thuc-te\"><span class=\"ez-toc-section\" id=\"Dau_hieu_nhan_biet_nhanh_trong_thuc_te\"><\/span>D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft nhanh trong th\u1ef1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Gi\u00e1 b\u1ea5t th\u01b0\u1eddng: th\u1ea5p h\u01a1n m\u1eb7t b\u1eb1ng 304 t\u1eeb 15\u201320% tr\u1edf l\u00ean l\u00e0 t\u00edn hi\u1ec7u r\u1ee7i ro.<br \/>\n&#8211; B\u1ec1 m\u1eb7t\/m\u00e0u: 201\/202 th\u01b0\u1eddng \u00e1nh v\u00e0ng nh\u1ea1t khi soi k\u1ef9; 304 thi\u00ean x\u00e1m b\u1ea1c trung t\u00ednh.<br \/>\n&#8211; M\u1ed1i h\u00e0n: 201\/430 \u0111\u1ed5i m\u00e0u, \u1ed1 n\u00e2u nhanh sau v\u00e0i ng\u00e0y \u1ea9m; 304 \u1ed5n \u0111\u1ecbnh h\u01a1n n\u1ebfu l\u00e0m s\u1ea1ch th\u1ee5 \u0111\u1ed9ng h\u00f3a \u0111\u00fang.<br \/>\n&#8211; T\u1eeb t\u00ednh: 430 h\u00fat m\u1ea1nh; 201 v\u00e0 304 c\u00f3 th\u1ec3 r\u1ea5t y\u1ebfu \u0111\u1ebfn kh\u00f4ng h\u00fat sau \u1ee7, kh\u00f4ng d\u00f9ng l\u00e0m b\u1eb1ng ch\u1ee9ng k\u1ebft lu\u1eadn.<br \/>\n&#8211; Tem\/\u0111\u00f3ng g\u00f3i: thi\u1ebfu heat number, thi\u1ebfu chu\u1ea9n tham chi\u1ebfu (ASTM A240\/A554\u2026), thi\u1ebfu logo\/m\u00e3 l\u00f4 c\u00f3 th\u1ec3 ki\u1ec3m tra ng\u01b0\u1ee3c.<br \/>\n&#8211; \u0110\u1ed9 d\u00e0y\/tr\u1ecdng l\u01b0\u1ee3ng: nghi ng\u1edd khi kh\u1ed1i l\u01b0\u1ee3ng th\u1ea5p h\u01a1n t\u00ednh to\u00e1n t\u1eeb k\u00edch th\u01b0\u1edbc v\u00e0 m\u1eadt \u0111\u1ed9 7,930 kg\/m3 (304).<\/p>\n<p>C\u00e1ch t\u00ednh tham kh\u1ea3o cho t\u1ea5m: Kh\u1ed1i l\u01b0\u1ee3ng (kg) = 7,930 \u00d7 D\u00e0y (m) \u00d7 R\u1ed9ng (m) \u00d7 D\u00e0i (m). So s\u00e1nh s\u1ed1 \u0111o th\u1ef1c t\u1ebf v\u1edbi c\u00e2n th\u1ef1c.<\/p>\n<h2 id=\"toc-3-quy-trinh-5-buoc-kiem-tra-nhanh-tai-xuong\"><span class=\"ez-toc-section\" id=\"Quy_trinh_5_buoc_kiem_tra_nhanh_tai_xuong\"><\/span>Quy tr\u00ecnh 5 b\u01b0\u1edbc ki\u1ec3m tra nhanh t\u1ea1i x\u01b0\u1edfng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"B1_Kiem_tra_ho_so_va_nhan\"><\/span>B1. Ki\u1ec3m tra h\u1ed3 s\u01a1 v\u00e0 nh\u00e3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Y\u00eau c\u1ea7u CO\/CQ, MTC c\u00f3 heat number, ti\u00eau chu\u1ea9n (ASTM A240 cho t\u1ea5m\/cu\u1ed9n, ASTM A554 cho \u1ed1ng h\u00e0n\u2026).<br \/>\n&#8211; \u0110\u1ed1i chi\u1ebfu heat number tr\u00ean tem cu\u1ed9n\/t\u1ea5m\/\u1ed1ng v\u1edbi MTC. Ki\u1ec3m tra sai ch\u00ednh t\u1ea3, font ch\u1eef, th\u00f4ng s\u1ed1 \u201cb\u1ea5t th\u01b0\u1eddng\u201d.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"B2_Do_kich_thuoc_va_can\"><\/span>B2. \u0110o k\u00edch th\u01b0\u1edbc v\u00e0 c\u00e2n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; D\u00f9ng th\u01b0\u1edbc panme\/th\u01b0\u1edbc l\u00e1 chu\u1ea9n \u0111\u1ec3 \u0111o chi\u1ec1u d\u00e0y th\u00e0nh \u1ed1ng\/t\u1ea5m \u1edf nhi\u1ec1u v\u1ecb tr\u00ed.<br \/>\n&#8211; C\u00e2n m\u1eabu v\u00e0 so v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng t\u00ednh theo m\u1eadt \u0111\u1ed9 7,930 kg\/m3 (304). Ch\u00eanh l\u1ec7ch l\u1edbn \u2192 nghi ng\u1edd.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"B3_Thu_nam_cham_sang_loc\"><\/span>B3. Th\u1eed nam ch\u00e2m s\u00e0ng l\u1ecdc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Lo\u1ea1i b\u1ecf v\u1eadt li\u1ec7u ferritic (430) h\u00fat m\u1ea1nh. V\u1edbi v\u1eadt li\u1ec7u y\u1ebfu t\u1eeb, kh\u00f4ng k\u1ebft lu\u1eadn l\u00e0 304; chuy\u1ec3n sang b\u01b0\u1edbc h\u00f3a h\u1ecdc\/PMI.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"B4_Thu_acid_diem_spot_test_co_kiem_soat\"><\/span>B4. Th\u1eed acid \u0111i\u1ec3m (spot test) c\u00f3 ki\u1ec3m so\u00e1t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; D\u00f9ng HNO3 \u0111\u1eadm \u0111\u1eb7c ho\u1eb7c dung d\u1ecbch th\u1eed chuy\u00ean d\u1ee5ng cho inox (kit tr\u00ean th\u1ecb tr\u01b0\u1eddng).<br \/>\n&#8211; 304 c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng HNO3 t\u1ed1t; 201\/202 d\u1ec5 b\u1ecb x\u1ec9n\/\u0103n m\u00f2n c\u1ee5c b\u1ed9 nhanh h\u01a1n.<br \/>\n&#8211; Thao t\u00e1c an to\u00e0n: g\u0103ng\/n\u00f3n\/kinh, th\u00f4ng gi\u00f3 t\u1ed1t, trung h\u00f2a b\u1eb1ng NaHCO3 sau th\u1eed, kh\u00f4ng \u00e1p d\u1ee5ng tr\u00ean b\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n khi ch\u01b0a c\u00f3 s\u1ef1 \u0111\u1ed3ng \u00fd kh\u00e1ch h\u00e0ng.<br \/>\n&#8211; \u0110\u00e2y l\u00e0 th\u1eed \u0111\u1ecbnh t\u00ednh nhanh, v\u1eabn c\u1ea7n PMI \u0111\u1ec3 x\u00e1c nh\u1eadn.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"B5_PMI_bang_XRF_khuyen_nghi\"><\/span>B5. PMI b\u1eb1ng XRF (khuy\u1ebfn ngh\u1ecb)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Thu\u00ea thi\u1ebft b\u1ecb XRF c\u1ea7m tay ho\u1eb7c y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p xu\u1ea5t b\u00e1o c\u00e1o PMI t\u1ea1i ch\u1ed7.<br \/>\n&#8211; XRF cho %Cr, %Ni, %Mn\u2026: 304 ph\u1ea3i c\u00f3 Ni kho\u1ea3ng 8% tr\u1edf l\u00ean; 201\/202 c\u00f3 Ni th\u1ea5p (th\u01b0\u1eddng 3.5\u20136%) v\u00e0 Mn cao.<br \/>\n&#8211; L\u01b0u h\u1ed3 s\u01a1 h\u00ecnh \u1ea3nh, s\u1ed1 \u0111\u1ecdc XRF g\u1eafn v\u1edbi heat number.<\/p>\n<h2 id=\"toc-4-kiem-dinh-chuyen-sau-khi-du-an-quan-trong\"><span class=\"ez-toc-section\" id=\"Kiem_dinh_chuyen_sau_khi_du_an_quan_trong\"><\/span>Ki\u1ec3m \u0111\u1ecbnh chuy\u00ean s\u00e2u khi d\u1ef1 \u00e1n quan tr\u1ecdng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Ph\u00e2n t\u00edch quang ph\u1ed5\/\u01b0\u1edbt trong ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n theo ASTM E415 ho\u1eb7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<br \/>\n&#8211; Th\u1eed c\u01a1 t\u00ednh (k\u00e9o, u\u1ed1n) v\u00e0 \u0103n m\u00f2n:<br \/>\n  &#8211; Theo d\u00f5i \u1ed1 tr\u00e0 ngo\u00e0i tr\u1eddi ho\u1eb7c th\u1eed mu\u1ed1i s\u01b0\u01a1ng (ASTM B117) \u0111\u1ec3 so s\u00e1nh l\u00f4 h\u00e0ng.<br \/>\n  &#8211; Th\u1eed pitting b\u1eb1ng FeCl3 (ASTM G48) c\u00f3 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 (ph\u00f2ng th\u00ed nghi\u1ec7m).<br \/>\n&#8211; Ki\u1ec3m tra h\u00e0n: 201\/202 nh\u1ea1y \u0103n m\u00f2n v\u00f9ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t h\u01a1n khi kh\u00f4ng th\u1ee5 \u0111\u1ed9ng h\u00f3a \u0111\u00fang.<\/p>\n<h2 id=\"toc-5-bien-phap-phong-tranh-va-mua-hang-an-toan\"><span class=\"ez-toc-section\" id=\"Bien_phap_phong_tranh_va_mua_hang_an_toan\"><\/span>Bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u00e1nh v\u00e0 mua h\u00e0ng an to\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"1_Chuan_hoa_yeu_cau_ky_thuat_trong_POhop_dong\"><\/span>1) Chu\u1ea9n h\u00f3a y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt trong PO\/h\u1ee3p \u0111\u1ed3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Ghi r\u00f5 ti\u00eau chu\u1ea9n: ASTM A240 (t\u1ea5m\/cu\u1ed9n), ASTM A554 (\u1ed1ng trang tr\u00ed), ASTM A312 (\u1ed1ng c\u00f4ng nghi\u1ec7p), dung sai theo ASTM A480.<br \/>\n&#8211; Quy \u0111\u1ecbnh th\u00e0nh ph\u1ea7n t\u1ed1i thi\u1ec3u (Cr, Ni), b\u1ec1 m\u1eb7t (2B\/BA\/HL\/No.4\/8K), ngu\u1ed3n g\u1ed1c nh\u00e0 m\u00e1y, \u0111\u00f3ng g\u00f3i, nh\u00e3n m\u00e1c, heat number.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Yeu_cau_tai_lieu_va_truy_xuat\"><\/span>2) Y\u00eau c\u1ea7u t\u00e0i li\u1ec7u v\u00e0 truy xu\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; CO\/CQ, MTC c\u00f3 ch\u1eef k\u00fd\/tem s\u1ed1 h\u00f3a; ch\u1ea5p nh\u1eadn h\u00e0ng theo s\u1ed1 heat\/lot.<br \/>\n&#8211; Cho ph\u00e9p ki\u1ec3m tra \u0111\u1ed9t xu\u1ea5t PMI; t\u1eeb ch\u1ed1i n\u1ebfu MTC kh\u00f4ng kh\u1edbp tem ho\u1eb7c t\u1eeb ch\u1ed1i h\u1ed7 tr\u1ee3 PMI.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Quy_trinh_IQC_kiem_tra_dau_vao\"><\/span>3) Quy tr\u00ecnh IQC (ki\u1ec3m tra \u0111\u1ea7u v\u00e0o)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Ki\u1ec3m tra ngo\u1ea1i quan, nh\u00e3n, k\u00edch th\u01b0\u1edbc, c\u00e2n \u0111\u1ed1i chi\u1ebfu.<br \/>\n&#8211; S\u00e0ng l\u1ecdc b\u1eb1ng nam ch\u00e2m v\u00e0 acid test tr\u00ean m\u1eabu nh\u1ecf, sau \u0111\u00f3 PMI ng\u1eabu nhi\u00ean t\u1ed1i thi\u1ec3u 5\u201310% l\u00f4, t\u0103ng t\u1ef7 l\u1ec7 v\u1edbi h\u1ea1ng m\u1ee5c quan tr\u1ecdng\/ngo\u00e0i tr\u1eddi\/ven bi\u1ec3n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Quan_ly_ton_kho_tranh_tron_lan\"><\/span>4) Qu\u1ea3n l\u00fd t\u1ed3n kho tr\u00e1nh tr\u1ed9n l\u1eabn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Ph\u00e2n khu 201\/304 ri\u00eang, d\u00e1n nh\u00e3n r\u00f5, d\u00f9ng m\u00e3 m\u00e0u.<br \/>\n&#8211; Kh\u00f4ng \u0111\u1ec3 l\u1eabn ph\u1ebf li\u1ec7u 201 v\u00e0o khu v\u1ef1c gia c\u00f4ng 304.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Lua_chon_nha_cung_cap_uy_tin\"><\/span>5) L\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p uy t\u00edn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; \u01afu ti\u00ean \u0111\u01a1n v\u1ecb c\u00f3 n\u0103ng l\u1ef1c cung c\u1ea5p ch\u1ee9ng t\u1eeb r\u00f5 r\u00e0ng, ch\u1ea5p nh\u1eadn PMI, c\u00f3 l\u1ecbch s\u1eed d\u1ef1 \u00e1n t\u01b0\u01a1ng t\u1ef1 v\u00e0 cam k\u1ebft b\u1ed3i ho\u00e0n khi sai m\u00e1c.<br \/>\n&#8211; C\u1ea3nh gi\u00e1c v\u1edbi \u0111\u01a1n gi\u00e1 304 th\u1ea5p b\u1ea5t th\u01b0\u1eddng ho\u1eb7c giao nhanh \u201cb\u1eb1ng m\u1ecdi gi\u00e1\u201d.<\/p>\n<h2 id=\"toc-6-vi-du-thuc-te-rui-ro-khi-dung-304-gia\"><span class=\"ez-toc-section\" id=\"Vi_du_thuc_te_rui_ro_khi_dung_%E2%80%9C304_gia%E2%80%9D\"><\/span>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf r\u1ee7i ro khi d\u00f9ng \u201c304 gi\u1ea3\u201d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Lan can ngo\u00e0i tr\u1eddi d\u00f9ng 201 d\u00e1n m\u00e1c 304: sau 3\u20136 th\u00e1ng xu\u1ea5t hi\u1ec7n \u1ed1 tr\u00e0 v\u00e0 r\u1ed7 t\u1ea1i m\u1ed1i h\u00e0n, bu\u1ed9c \u0111\u00e1nh b\u00f3ng\/ph\u1ed1t ph\u00e1t h\u00f3a \u0111\u1ecbnh k\u1ef3, chi ph\u00ed b\u1ea3o tr\u00ec v\u01b0\u1ee3t ch\u00eanh l\u1ec7ch mua 304 chu\u1ea9n ngay t\u1eeb \u0111\u1ea7u.<br \/>\n&#8211; B\u1ed3n nh\u1eb9 h\u00f3a ch\u1ea5t: m\u1ea3ng r\u1ed7 c\u1ee5c b\u1ed9 sau v\u00e0i tu\u1ea7n v\u1eadn h\u00e0nh v\u00ec Ni\/Cr d\u01b0\u1edbi chu\u1ea9n, ph\u1ea3i thay t\u1ea5m l\u00f3t, d\u1eebng m\u00e1y.<\/p>\n<h2 id=\"toc-7-tham-khao-tieu-chuan-va-nguon-chuyen-mon\"><span class=\"ez-toc-section\" id=\"Tham_khao_tieu_chuan_va_nguon_chuyen_mon\"><\/span>Tham kh\u1ea3o ti\u00eau chu\u1ea9n v\u00e0 ngu\u1ed3n chuy\u00ean m\u00f4n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; ASTM A240\/A240M \u2013 T\u1ea5m, b\u1ea3n inox; ASTM A480 \u2013 Dung sai v\u00e0 y\u00eau c\u1ea7u chung.<br \/>\n&#8211; ASTM A554 \u2013 \u1ed0ng inox h\u00e0n \u1ee9ng d\u1ee5ng c\u01a1 kh\u00ed\/ki\u1ebfn tr\u00fac; ASTM A312 \u2013 \u1ed0ng inox h\u00e0n\/\u0111\u00fac d\u00f9ng cho \u00e1p l\u1ef1c.<br \/>\n&#8211; World Stainless (tr\u01b0\u1edbc \u0111\u00e2y ISSF): The 200 Series of Stainless Steels \u2013 An overview. https:\/\/www.worldstainless.org<br \/>\n&#8211; Nickel Institute: Design guidelines and alloy comparisons for 200 vs 300 series. https:\/\/www.nickelinstitute.org<br \/>\n&#8211; Datasheet nh\u00e0 s\u1ea3n xu\u1ea5t (Outokumpu Stainless Steel Handbook) v\u1ec1 304\/304L, 201\/202.<\/p>\n<h2 id=\"toc-8-checklist-nhanh-truoc-khi-nhap-hang-304\"><span class=\"ez-toc-section\" id=\"Checklist_nhanh_truoc_khi_nhap_hang_%E2%80%9C304%E2%80%9D\"><\/span>Checklist nhanh tr\u01b0\u1edbc khi nh\u1eadp h\u00e0ng \u201c304\u201d<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u00f3 MTC\/CO\/CQ h\u1ee3p l\u1ec7, heat number \u0111\u1ed3ng nh\u1ea5t tr\u00ean tem v\u00e0 gi\u1ea5y.<br \/>\n&#8211; Gi\u00e1 ph\u00f9 h\u1ee3p m\u1eb7t b\u1eb1ng 304, kh\u00f4ng \u201cr\u1ebb b\u1ea5t th\u01b0\u1eddng\u201d.<br \/>\n&#8211; \u0110o d\u00e0y v\u00e0 c\u00e2n \u0111\u1ed1i chi\u1ebfu m\u1eadt \u0111\u1ed9 7,930 kg\/m3.<br \/>\n&#8211; Th\u1eed nam ch\u00e2m \u0111\u1ec3 lo\u1ea1i 430; th\u1eed acid \u0111i\u1ec3m c\u00f3 ki\u1ec3m so\u00e1t.<br \/>\n&#8211; PMI XRF t\u1ed1i thi\u1ec3u tr\u00ean m\u1eabu ng\u1eabu nhi\u00ean; l\u01b0u \u1ea3nh\/ch\u1ec9 s\u1ed1.<br \/>\n&#8211; \u0110i\u1ec1u kho\u1ea3n tr\u1ea3 h\u00e0ng\/b\u1ed3i ho\u00e0n khi sai m\u00e1c ghi r\u00f5 trong h\u1ee3p \u0111\u1ed3ng.<\/p>\n<h2 id=\"toc-9-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>Inox 304 b\u1ecb l\u00e0m gi\u1ea3 theo nhi\u1ec1u c\u00e1ch: tr\u00e1o m\u00e1c 201\/202, gi\u1ea5y MTC gi\u1ea3, \u0103n b\u1edbt \u0111\u1ed9 d\u00e0y, \u0111\u00e1nh b\u00f3ng\/m\u1ea1 \u0111\u00e1nh l\u1eeba\u2026 D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft g\u1ed3m gi\u00e1 th\u1ea5p b\u1ea5t th\u01b0\u1eddng, tem\/nh\u00e3n kh\u00f4ng truy xu\u1ea5t, ch\u00eanh kh\u1ed1i l\u01b0\u1ee3ng-th\u1ef1c \u0111o, m\u1ed1i h\u00e0n x\u1ec9n nhanh. \u0110\u1ec3 ph\u00f2ng tr\u00e1nh, h\u00e3y ti\u00eau chu\u1ea9n h\u00f3a y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt (ASTM\/JIS\/EN), ki\u1ec3m so\u00e1t \u0111\u1ea7u v\u00e0o theo quy tr\u00ecnh 5 b\u01b0\u1edbc (h\u1ed3 s\u01a1 \u2013 k\u00edch th\u01b0\u1edbc \u2013 nam ch\u00e2m \u2013 acid test \u2013 PMI), v\u00e0 ch\u1ec9 mua t\u1eeb nh\u00e0 cung c\u1ea5p uy t\u00edn, s\u1eb5n s\u00e0ng cho ki\u1ec3m \u0111\u1ecbnh. L\u00e0m \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u gi\u00fap lo\u1ea1i b\u1ecf r\u1ee7i ro \u0103n m\u00f2n s\u1edbm, b\u1ea3o to\u00e0n ti\u1ebfn \u0111\u1ed9 v\u00e0 chi ph\u00ed v\u00f2ng \u0111\u1eddi thi\u1ebft b\u1ecb\/c\u00f4ng tr\u00ecnh.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n k\u1ef9 h\u01a1n v\u1ec1 ph\u00e2n bi\u1ec7t 304 th\u1eadt\/gi\u1ea3, ki\u1ec3m \u0111\u1ecbnh PMI t\u1ea1i ch\u1ed7 v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t: 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>T\u1ed5ng h\u1ee3p c\u00e1c chi\u00eau tr\u00f2 l\u00e0m gi\u1ea3 inox 304, h\u01b0\u1edbng d\u1eabn nh\u1eadn bi\u1ebft nhanh t\u1ea1i x\u01b0\u1edfng, quy tr\u00ecnh ki\u1ec3m \u0111\u1ecbnh chu\u1ea9n v\u00e0 m\u1eb9o mua h\u00e0ng an to\u00e0n \u0111\u1ec3 tr\u00e1nh r\u1ee7i ro \u0103n m\u00f2n, h\u1ecfng h\u00f3c.<\/p>\n","protected":false},"author":7,"featured_media":1075,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2418","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\/2418","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=2418"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2418\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1075"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}