{"id":2522,"date":"2026-09-02T12:33:41","date_gmt":"2026-09-02T05:33:41","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/"},"modified":"2026-09-02T12:33:41","modified_gmt":"2026-09-02T05:33:41","slug":"inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/","title":{"rendered":"Inox 304 l\u00e0 g\u00ec? Th\u00e0nh ph\u1ea7n, t\u00ednh ch\u1ea5t v\u00e0 v\u00ec sao ph\u1ed5 bi\u1ebfn"},"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;2522&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;Inox 304 l\u00e0 g\u00ec? Th\u00e0nh ph\u1ea7n, t\u00ednh ch\u1ea5t v\u00e0 v\u00ec sao ph\u1ed5 bi\u1ebfn&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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Dinh_nghia_tieu_chuan_va_ky_hieu_thuong_mai\" >\u0110\u1ecbnh ngh\u0129a, ti\u00eau chu\u1ea9n v\u00e0 k\u00fd hi\u1ec7u th\u01b0\u01a1ng m\u1ea1i<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Thanh_phan_hoa_hoc_dien_hinh\" >Th\u00e0nh ph\u1ea7n ho\u00e1 h\u1ecdc \u0111i\u1ec3n h\u00ecnh<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Tinh_chat_co_ly_%E2%80%93_du_lieu_thiet_ke_quan_trong\" >T\u00ednh ch\u1ea5t c\u01a1 l\u00fd \u2013 d\u1eef li\u1ec7u thi\u1ebft k\u1ebf quan tr\u1ecdng<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Kha_nang_chong_an_mon_manh_o_da_so_moi_truong_chu_y_ion_Cl%E2%88%92\" >Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n: m\u1ea1nh \u1edf \u0111a s\u1ed1 m\u00f4i tr\u01b0\u1eddng, ch\u00fa \u00fd ion Cl\u2212<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/inoxcuongthinh.com\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Han_gia_cong_va_xu_ly_be_mat\" >H\u00e0n, gia c\u00f4ng v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/inoxcuongthinh.com\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Kha_nang_han\" >Kh\u1ea3 n\u0103ng h\u00e0n<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Tao_hinh_%E2%80%93_gia_cong\" >T\u1ea1o h\u00ecnh \u2013 gia c\u00f4ng<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Xu_ly_nhiet\" >X\u1eed l\u00fd nhi\u1ec7t<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Be_mat_quy_cach_va_dung_sai_thong_dung\" >B\u1ec1 m\u1eb7t, quy c\u00e1ch v\u00e0 dung sai th\u00f4ng d\u1ee5ng<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#304_304L_316_201_430_%E2%80%93_chon_mac_nao_cho_dung\" >304, 304L, 316, 201, 430 \u2013 ch\u1ecdn m\u00e1c n\u00e0o cho \u0111\u00fang?<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#%E2%80%9CInox_304_la_inox_thuc_pham%E2%80%9D_%E2%80%93_dung_nhung_can_du_dieu_kien\" >\u201cInox 304 l\u00e0 inox th\u1ef1c ph\u1ea9m\u201d \u2013 \u0111\u00fang nh\u01b0ng c\u1ea7n \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Ung_dung_dien_hinh_tai_Viet_Nam\" >\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh t\u1ea1i Vi\u1ec7t Nam<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/inoxcuongthinh.com\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Chat_luong_kiem_dinh_va_nhan_biet_mac\" >Ch\u1ea5t l\u01b0\u1ee3ng, ki\u1ec3m \u0111\u1ecbnh v\u00e0 nh\u1eadn bi\u1ebft m\u00e1c<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Loi_thuong_gap_va_cach_tranh\" >L\u1ed7i 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-16\" href=\"https:\/\/inoxcuongthinh.com\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Vi_sao_inox_304_la_mac_thep_khong_gi_pho_bien_nhat_the_gioi\" >V\u00ec sao inox 304 l\u00e0 m\u00e1c th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi?<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#Goi_y_lua_chon_nhanh\" >G\u1ee3i \u00fd l\u1ef1a ch\u1ecdn nhanh<\/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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#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\/inox-304-la-gi-thanh-phan-tinh-chat-va-vi-sao-pho-bien\/#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-dinh-nghia-tieu-chuan-va-ky-hieu-thuong-mai\">\u0110\u1ecbnh ngh\u0129a, ti\u00eau chu\u1ea9n v\u00e0 k\u00fd hi\u1ec7u th\u01b0\u01a1ng m\u1ea1i<\/a><\/li>\n<li><a href=\"#toc-1-thanh-phan-hoa-hoc-dien-hinh\">Th\u00e0nh ph\u1ea7n ho\u00e1 h\u1ecdc \u0111i\u1ec3n h\u00ecnh<\/a><\/li>\n<li><a href=\"#toc-2-tinh-chat-co-ly-du-lieu-thiet-ke-quan-trong\">T\u00ednh ch\u1ea5t c\u01a1 l\u00fd \u2013 d\u1eef li\u1ec7u thi\u1ebft k\u1ebf quan tr\u1ecdng<\/a><\/li>\n<li><a href=\"#toc-3-kha-nang-chong-an-mon-manh-o-da-so-moi-truong-chu-\">Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n: m\u1ea1nh \u1edf \u0111a s\u1ed1 m\u00f4i tr\u01b0\u1eddng, ch\u00fa \u00fd ion Cl\u2212<\/a><\/li>\n<li><a href=\"#toc-4-han-gia-cong-va-xu-ly-be-mat\">H\u00e0n, gia c\u00f4ng v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/a><\/li>\n<li><a href=\"#toc-5-be-mat-quy-cach-va-dung-sai-thong-dung\">B\u1ec1 m\u1eb7t, quy c\u00e1ch v\u00e0 dung sai th\u00f4ng d\u1ee5ng<\/a><\/li>\n<li><a href=\"#toc-6-304-304l-316-201-430-chon-mac-nao-cho-dung\">304, 304L, 316, 201, 430 \u2013 ch\u1ecdn m\u00e1c n\u00e0o cho \u0111\u00fang?<\/a><\/li>\n<li><a href=\"#toc-7-inox-304-la-inox-thuc-pham-dung-nhung-can-du-dieu-\">\u201cInox 304 l\u00e0 inox th\u1ef1c ph\u1ea9m\u201d \u2013 \u0111\u00fang nh\u01b0ng c\u1ea7n \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n<\/a><\/li>\n<li><a href=\"#toc-8-ung-dung-dien-hinh-tai-viet-nam\">\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-9-chat-luong-kiem-dinh-va-nhan-biet-mac\">Ch\u1ea5t l\u01b0\u1ee3ng, ki\u1ec3m \u0111\u1ecbnh v\u00e0 nh\u1eadn bi\u1ebft m\u00e1c<\/a><\/li>\n<li><a href=\"#toc-10-loi-thuong-gap-va-cach-tranh\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<\/a><\/li>\n<li><a href=\"#toc-11-vi-sao-inox-304-la-mac-thep-khong-gi-pho-bien-nhat\">V\u00ec sao inox 304 l\u00e0 m\u00e1c th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi?<\/a><\/li>\n<li><a href=\"#toc-12-goi-y-lua-chon-nhanh\">G\u1ee3i \u00fd l\u1ef1a ch\u1ecdn nhanh<\/a><\/li>\n<li><a href=\"#toc-13-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-14-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox 304 (AISI 304\/EN 1.4301) l\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 austenitic 18\/8 kinh \u0111i\u1ec3n v\u1edbi c\u00e2n b\u1eb1ng t\u1ed1i \u01b0u gi\u1eefa kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, c\u01a1 t\u00ednh, kh\u1ea3 n\u0103ng gia c\u00f4ng \u2013 v\u00e0 gi\u00e1 th\u00e0nh. \u0110\u00e2y l\u00e0 m\u00e1c inox ph\u1ed5 bi\u1ebfn nh\u1ea5t to\u00e0n c\u1ea7u trong c\u00e1c ng\u00e0nh c\u01a1 kh\u00ed, k\u1ebft c\u1ea5u, b\u1ebfp c\u00f4ng nghi\u1ec7p, b\u1ed3n b\u1ec3, \u1ed1ng trang tr\u00ed v\u00e0 thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p \u0111\u1ecbnh ngh\u0129a, ti\u00eau chu\u1ea9n, d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i, h\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng \u2013 v\u00e0 gi\u1ea3i th\u00edch v\u00ec sao 304 tr\u1edf th\u00e0nh \u201cchu\u1ea9n m\u1eb7c \u0111\u1ecbnh\u201d c\u1ee7a th\u1ecb tr\u01b0\u1eddng.<\/p>\n<h2 id=\"toc-0-dinh-nghia-tieu-chuan-va-ky-hieu-thuong-mai\"><span class=\"ez-toc-section\" id=\"Dinh_nghia_tieu_chuan_va_ky_hieu_thuong_mai\"><\/span>\u0110\u1ecbnh ngh\u0129a, ti\u00eau chu\u1ea9n v\u00e0 k\u00fd hi\u1ec7u th\u01b0\u01a1ng m\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; T\u00ean chu\u1ea9n: AISI 304; EN 1.4301; UNS S30400; JIS SUS304<br \/>\n&#8211; Bi\u1ebfn th\u1ec3 carbon th\u1ea5p: 304L \u2013 EN 1.4307; UNS S30403 (\u01b0u ti\u00ean khi h\u00e0n d\u00e0y \u0111\u1ec3 tr\u00e1nh \u0103n m\u00f2n k\u1ebd h\u1ea1t)<br \/>\n&#8211; Ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m \u0111i\u1ec3n h\u00ecnh:<br \/>\n  &#8211; T\u1ea5m\/cu\u1ed9n: ASTM A240\/A240M; EN 10088-2<br \/>\n  &#8211; Thanh: ASTM A276\/A479<br \/>\n  &#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p: ASTM A312\/A358<br \/>\n  &#8211; \u1ed0ng trang tr\u00ed: ASTM A554<br \/>\n  &#8211; \u1ed0ng vi sinh\/th\u1ef1c ph\u1ea9m: ASTM A270<\/p>\n<h2 id=\"toc-1-thanh-phan-hoa-hoc-dien-hinh\"><span class=\"ez-toc-section\" id=\"Thanh_phan_hoa_hoc_dien_hinh\"><\/span>Th\u00e0nh ph\u1ea7n ho\u00e1 h\u1ecdc \u0111i\u1ec3n h\u00ecnh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Cr: 18.0\u201320.0%<br \/>\n&#8211; Ni: 8.0\u201310.5% (304); 8.0\u201312.0% (304L)<br \/>\n&#8211; C: \u2264 0.08% (304); \u2264 0.03% (304L)<br \/>\n&#8211; Mn \u2264 2.0%; Si \u2264 1.0%; P \u2264 0.045%; S \u2264 0.03%; N \u2264 0.10%<br \/>\nGhi ch\u00fa: 304 th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201c18\/8\u201d nh\u1edd kho\u1ea3ng 18% Cr v\u00e0 8% Ni \u2013 n\u1ec1n t\u1ea3ng t\u1ea1o pha austenit b\u1ec1n, ch\u1ed1ng g\u1ec9 t\u1ed1t.<\/p>\n<h2 id=\"toc-2-tinh-chat-co-ly-du-lieu-thiet-ke-quan-trong\"><span class=\"ez-toc-section\" id=\"Tinh_chat_co_ly_%E2%80%93_du_lieu_thiet_ke_quan_trong\"><\/span>T\u00ednh ch\u1ea5t c\u01a1 l\u00fd \u2013 d\u1eef li\u1ec7u thi\u1ebft k\u1ebf quan tr\u1ecdng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u01a1 t\u00ednh (tr\u1ea1ng th\u00e1i \u1ee7 \u2013 annealed, theo ASTM):<br \/>\n  &#8211; Gi\u1edbi h\u1ea1n ch\u1ea3y Rp0.2: \u2265 205 MPa<br \/>\n  &#8211; \u0110\u1ed9 b\u1ec1n k\u00e9o Rm: \u2265 515 MPa<br \/>\n  &#8211; \u0110\u1ed9 gi\u00e3n d\u00e0i A50: \u2265 40%<br \/>\n  &#8211; \u0110\u1ed9 c\u1ee9ng: \u2264 92 HRB (\u2248 \u2264 201 HB)<br \/>\n&#8211; V\u1eadt l\u00fd:<br \/>\n  &#8211; Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang: ~8.0 g\/cm\u00b3<br \/>\n  &#8211; M\u00f4 \u0111un \u0111\u00e0n h\u1ed3i E: ~193 GPa<br \/>\n  &#8211; H\u1ec7 s\u1ed1 gi\u00e3n n\u1edf nhi\u1ec7t (0\u2013100\u00b0C): ~17.2\u00d710\u207b\u2076\/K<br \/>\n  &#8211; D\u1eabn nhi\u1ec7t (100\u00b0C): ~16 W\/m\u00b7K<br \/>\n  &#8211; \u0110i\u1ec7n tr\u1edf su\u1ea5t (20\u00b0C): ~0.72 \u03bc\u03a9\u00b7m<br \/>\n  &#8211; Kho\u1ea3ng n\u00f3ng ch\u1ea3y: ~1400\u20131450\u00b0C<br \/>\n&#8211; T\u1eeb t\u00ednh: H\u1ea7u nh\u01b0 kh\u00f4ng nhi\u1ec5m t\u1eeb \u1edf tr\u1ea1ng th\u00e1i \u1ee7; c\u00f3 th\u1ec3 nhi\u1ec5m nh\u1eb9 sau c\u00e1n\/\u00e9p ngu\u1ed9i do bi\u1ebfn \u0111\u1ed5i c\u1ea5u tr\u00fac.<br \/>\n&#8211; L\u00e0m c\u1ee9ng: Kh\u00f4ng t\u00f4i c\u1ee9ng b\u1eb1ng nhi\u1ec7t; ch\u1ec9 t\u0103ng b\u1ec1n nh\u1edd bi\u1ebfn d\u1ea1ng ngu\u1ed9i (work hardening).<\/p>\n<h2 id=\"toc-3-kha-nang-chong-an-mon-manh-o-da-so-moi-truong-chu-\"><span class=\"ez-toc-section\" id=\"Kha_nang_chong_an_mon_manh_o_da_so_moi_truong_chu_y_ion_Cl%E2%88%92\"><\/span>Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n: m\u1ea1nh \u1edf \u0111a s\u1ed1 m\u00f4i tr\u01b0\u1eddng, ch\u00fa \u00fd ion Cl\u2212<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; M\u00f4i tr\u01b0\u1eddng th\u00f4ng th\u01b0\u1eddng: Kh\u00e1ng t\u1ed1t trong kh\u00ed quy\u1ec3n, n\u01b0\u1edbc m\u00e1y, \u0111a s\u1ed1 m\u00f4i tr\u01b0\u1eddng \u00f4xy ho\u00e1 nh\u1eb9, nhi\u1ec1u axit h\u1eefu c\u01a1 v\u00e0 dung d\u1ecbch ki\u1ec1m lo\u00e3ng.<br \/>\n&#8211; H\u1ea1n ch\u1ebf:<br \/>\n  &#8211; Ion chloride (Cl\u2212): D\u1ec5 b\u1ecb r\u1ed7 (pitting)\/khe (crevice) trong n\u01b0\u1edbc m\u1eb7n, s\u01b0\u01a1ng mu\u1ed1i ven bi\u1ec3n, h\u1ed3 b\u01a1i, ch\u1ea5t t\u1ea9y ch\u1ee9a chloride, \u0111\u1eb7c bi\u1ec7t khi nhi\u1ec7t \u0111\u1ed9 cao.<br \/>\n  &#8211; \u1ee8ng su\u1ea5t + Cl\u2212: C\u00f3 nguy c\u01a1 n\u1ee9t \u0103n m\u00f2n \u1ee9ng su\u1ea5t (SCC) tr\u00ean ~60\u00b0C.<br \/>\n  &#8211; Axit kh\u1eed m\u1ea1nh (HCl, H2SO4 \u0111\u1eadm \u0111\u1eb7c\u2026): Kh\u00f4ng ph\u00f9 h\u1ee3p.<br \/>\n&#8211; So s\u00e1nh ch\u1ec9 s\u1ed1 ch\u1ed1ng r\u1ed7 (PREN): 304 ~ 18\u201319; 316 (c\u00f3 Mo) ~ 24\u201326 \u2192 316 tr\u1ed9i h\u01a1n r\u00f5 r\u1ec7t trong m\u00f4i tr\u01b0\u1eddng c\u00f3 chloride.<br \/>\n&#8211; Nhi\u1ec7t \u0111\u1ed9 cao: Ch\u1ed1ng \u00f4xy ho\u00e1 t\u1ed1t \u0111\u1ebfn kho\u1ea3ng 870\u00b0C (gi\u00e1n \u0111o\u1ea1n) v\u00e0 ~925\u00b0C (li\u00ean t\u1ee5c). Tuy nhi\u00ean v\u00f9ng 425\u2013870\u00b0C c\u00f3 nguy c\u01a1 k\u1ebft t\u1ee7a carbide (sensitization) g\u00e2y \u0103n m\u00f2n k\u1ebd h\u1ea1t; n\u1ebfu c\u1ea7n h\u00e0n\/gi\u1eef nhi\u1ec7t \u1edf d\u1ea3i n\u00e0y, \u01b0u ti\u00ean 304L ho\u1eb7c \u1ee7 ho\u00e0 tan sau h\u00e0n.<\/p>\n<h2 id=\"toc-4-han-gia-cong-va-xu-ly-be-mat\"><span class=\"ez-toc-section\" id=\"Han_gia_cong_va_xu_ly_be_mat\"><\/span>H\u00e0n, gia c\u00f4ng v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Kha_nang_han\"><\/span>Kh\u1ea3 n\u0103ng h\u00e0n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Quy tr\u00ecnh: GTAW\/TIG, GMAW\/MIG, SMAW, FCAW \u2013 \u0111\u1ec1u ph\u00f9 h\u1ee3p.<br \/>\n&#8211; V\u1eadt li\u1ec7u h\u00e0n khuy\u00ean d\u00f9ng:<br \/>\n  &#8211; H\u00e0n 304\/304L: ER308\/ER308L (GTAW\/GMAW) ho\u1eb7c E308L (SMAW)<br \/>\n  &#8211; H\u00e0n v\u1edbi th\u00e9p carbon\/kh\u00e1c m\u00e1c: d\u00f9ng 309\/309L cho li\u00ean k\u1ebft d\u1ecb v\u1eadt li\u1ec7u<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb: Gi\u1ea3m nhi\u1ec7t \u0111\u1ea7u v\u00e0o, l\u00e0m s\u1ea1ch, pickling + passivation sau h\u00e0n \u0111\u1ec3 ph\u1ee5c h\u1ed3i th\u1ee5 \u0111\u1ed9ng. 304L gi\u00fap h\u1ea1n ch\u1ebf sensitization \u1edf m\u1ed1i h\u00e0n d\u00e0y.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tao_hinh_%E2%80%93_gia_cong\"><\/span>T\u1ea1o h\u00ecnh \u2013 gia c\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; T\u1ea1o h\u00ecnh ngu\u1ed9i: R\u1ea5t t\u1ed1t (d\u1eadp s\u00e2u ch\u1eadu r\u1eeda, u\u1ed1n, cu\u1ed1n \u1ed1ng). L\u01b0u \u00fd:<br \/>\n  &#8211; Ch\u1ecdn b\u00e1n k\u00ednh u\u1ed1n \u0111\u1ee7 l\u1edbn do work hardening nhanh<br \/>\n  &#8211; B\u00f4i tr\u01a1n t\u1ed1t \u0111\u1ec3 tr\u00e1nh x\u01b0\u1edbc b\u1ec1 m\u1eb7t 2B\/BA\/No.4\/HL<br \/>\n  &#8211; \u1ee6 ho\u00e0 tan n\u1ebfu bi\u1ebfn d\u1ea1ng l\u1edbn g\u00e2y n\u1ee9t<br \/>\n&#8211; Gia c\u00f4ng c\u1eaft g\u1ecdt: Kh\u00f3 h\u01a1n th\u00e9p carbon, d\u1ec5 ho\u00e1 b\u1ec1n b\u1ec1 m\u1eb7t:<br \/>\n  &#8211; D\u00f9ng dao s\u1eafc, t\u1ed1c \u0111\u1ed9 c\u1eaft v\u1eeba, ti\u1ebfn dao \u0111\u1ee7 l\u1edbn \u0111\u1ec3 \u201cc\u1eaft qua\u201d l\u1edbp ho\u00e1 b\u1ec1n<br \/>\n  &#8211; L\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3; c\u00e2n nh\u1eafc m\u00e1c 303 n\u1ebfu y\u00eau c\u1ea7u gia c\u00f4ng ti\u1ec7n cao (\u0111\u1ed5i l\u1ea1i kh\u00e1ng g\u1ec9 k\u00e9m h\u01a1n)<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xu_ly_nhiet\"><\/span>X\u1eed l\u00fd nhi\u1ec7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; \u1ee6 ho\u00e0 tan: 1010\u20131120\u00b0C, l\u00e0m ngu\u1ed9i nhanh (n\u01b0\u1edbc\/kh\u00f4ng kh\u00ed c\u01b0\u1ee1ng b\u1ee9c) \u0111\u1ec3 t\u00e1i t\u1ea1o b\u1ec1 m\u1eb7t th\u1ee5 \u0111\u1ed9ng v\u00e0 c\u01a1 t\u00ednh.<br \/>\n&#8211; Kh\u1eed \u1ee9ng su\u1ea5t: Tr\u00e1nh l\u01b0u l\u00e2u 450\u2013850\u00b0C (nguy c\u01a1 sensitization). V\u1edbi chi ti\u1ebft y\u00eau c\u1ea7u, \u01b0u ti\u00ean 304L ho\u1eb7c \u1ee7 ho\u00e0 tan l\u1ea1i.<\/p>\n<h2 id=\"toc-5-be-mat-quy-cach-va-dung-sai-thong-dung\"><span class=\"ez-toc-section\" id=\"Be_mat_quy_cach_va_dung_sai_thong_dung\"><\/span>B\u1ec1 m\u1eb7t, quy c\u00e1ch v\u00e0 dung sai th\u00f4ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; B\u1ec1 m\u1eb7t:<br \/>\n  &#8211; No.1 (c\u00e1n n\u00f3ng, t\u1ea9y g\u1ec9), 2B (c\u00e1n ngu\u1ed9i m\u1edd), BA (\u1ee7 b\u00f3ng g\u01b0\u01a1ng), No.4\/Satin (180\u2013240 grit), HL (Hairline), No.8 (g\u01b0\u01a1ng)<br \/>\n&#8211; Quy c\u00e1ch th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam (tham kh\u1ea3o):<br \/>\n  &#8211; Cu\u1ed9n\/t\u1ea5m m\u1ecfng 2B\/BA: 0.4\u20133.0 mm; kh\u1ed5 1.0\/1.2\/1.5 m<br \/>\n  &#8211; T\u1ea5m d\u00e0y No.1: 5\u201350 mm; kh\u1ed5 1.5\/2.0 m<br \/>\n  &#8211; \u1ed0ng trang tr\u00ed (ASTM A554): \u00d89.5\u2013168 mm; d\u00e0y 0.6\u20133.0 mm; b\u1ec1 m\u1eb7t 2B\/HL\/No.4<br \/>\n  &#8211; \u1ed0ng c\u00f4ng nghi\u1ec7p (ASTM A312): theo chu\u1ea9n Schedule\/WT<br \/>\n&#8211; Dung sai: Theo ASTM\/EN; s\u1ea3n ph\u1ea9m c\u00e1n ngu\u1ed9i c\u00f3 \u0111\u1ed9 ph\u1eb3ng\/b\u1ec1 m\u1eb7t t\u1ed1t h\u01a1n c\u00e1n n\u00f3ng.<\/p>\n<h2 id=\"toc-6-304-304l-316-201-430-chon-mac-nao-cho-dung\"><span class=\"ez-toc-section\" id=\"304_304L_316_201_430_%E2%80%93_chon_mac_nao_cho_dung\"><\/span>304, 304L, 316, 201, 430 \u2013 ch\u1ecdn m\u00e1c n\u00e0o cho \u0111\u00fang?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 304 vs 304L:<br \/>\n  &#8211; 304L c\u00f3 C \u2264 0.03% \u2192 gi\u1ea3m nguy c\u01a1 \u0103n m\u00f2n k\u1ebd h\u1ea1t sau h\u00e0n; c\u01a1 t\u00ednh g\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. D\u00f9ng 304L khi h\u00e0n k\u1ebft c\u1ea5u d\u00e0y\/b\u1ed3n b\u1ec3\/\u0111\u01b0\u1eddng \u1ed1ng.<br \/>\n&#8211; 304 vs 316:<br \/>\n  &#8211; 316 c\u00f3 Mo (2\u20132.5%) \u2192 ch\u1ed1ng r\u1ed7 v\u00e0 SCC trong m\u00f4i tr\u01b0\u1eddng chloride t\u1ed1t h\u01a1n. Ch\u1ecdn 316 cho ven bi\u1ec3n, h\u1ed3 b\u01a1i, c\u00f4ng nghi\u1ec7p ho\u00e1 ch\u1ea5t ch\u1ee9a Cl\u2212.<br \/>\n&#8211; 304 vs 201:<br \/>\n  &#8211; 201 d\u00f9ng Mn\/N thay Ni \u2192 gi\u00e1 r\u1ebb h\u01a1n nh\u01b0ng ch\u1ed1ng g\u1ec9 k\u00e9m h\u01a1n, \u0111\u1eb7c bi\u1ec7t ngo\u00e0i tr\u1eddi\/\u1ea9m mu\u1ed1i. 201 ph\u00f9 h\u1ee3p n\u1ed9i th\u1ea5t kh\u00f4; 304 an to\u00e0n h\u01a1n cho m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb.<br \/>\n&#8211; 304 vs 430:<br \/>\n  &#8211; 430 l\u00e0 ferritic kh\u00f4ng Ni, nhi\u1ec5m t\u1eeb, kh\u00e1ng g\u1ec9 th\u1ea5p h\u01a1n; ph\u00f9 h\u1ee3p m\u00f4i tr\u01b0\u1eddng kh\u00f4, chi ti\u1ebft trang tr\u00ed trong nh\u00e0; kh\u00f4ng s\u00e1nh b\u1eb1ng 304 \u1edf ngo\u00e0i tr\u1eddi \u1ea9m.<\/p>\n<h2 id=\"toc-7-inox-304-la-inox-thuc-pham-dung-nhung-can-du-dieu-\"><span class=\"ez-toc-section\" id=\"%E2%80%9CInox_304_la_inox_thuc_pham%E2%80%9D_%E2%80%93_dung_nhung_can_du_dieu_kien\"><\/span>\u201cInox 304 l\u00e0 inox th\u1ef1c ph\u1ea9m\u201d \u2013 \u0111\u00fang nh\u01b0ng c\u1ea7n \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; 304 \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i cho b\u1ed3n, b\u00e0n, ch\u1eadu, \u0111\u01b0\u1eddng \u1ed1ng ng\u00e0nh F&#038;B nh\u1edd t\u00ednh tr\u01a1 v\u00e0 d\u1ec5 v\u1ec7 sinh.<br \/>\n&#8211; Tuy nhi\u00ean \u201cfood-grade\u201d c\u00f2n ph\u1ee5 thu\u1ed9c:<br \/>\n  &#8211; Ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u\/\u1ed1ng vi sinh (v\u00ed d\u1ee5 ASTM A270)<br \/>\n  &#8211; M\u1ee9c \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t (No.4\/BA, Ra ph\u00f9 h\u1ee3p)<br \/>\n  &#8211; Quy tr\u00ecnh l\u00e0m s\u1ea1ch, passivation, tr\u00e1nh ch\u1ea5t t\u1ea9y ch\u1ee9a chloride<br \/>\n&#8211; Ki\u1ec3m tra tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m (v\u00ed d\u1ee5 FDA, EU 1935\/2004) theo y\u00eau c\u1ea7u d\u1ef1 \u00e1n.<\/p>\n<h2 id=\"toc-8-ung-dung-dien-hinh-tai-viet-nam\"><span class=\"ez-toc-section\" id=\"Ung_dung_dien_hinh_tai_Viet_Nam\"><\/span>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh t\u1ea1i Vi\u1ec7t Nam<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; B\u1ebfp c\u00f4ng nghi\u1ec7p: b\u00e0n, k\u1ec7, ch\u1eadu r\u1eeda, ch\u1ee5p h\u00fat m\u00f9i, thi\u1ebft b\u1ecb ch\u1ebf bi\u1ebfn<br \/>\n&#8211; B\u1ed3n ch\u1ee9a, b\u1ed3n tr\u1ed9n: th\u1ef1c ph\u1ea9m, \u0111\u1ed3 u\u1ed1ng, d\u01b0\u1ee3c, m\u1ef9 ph\u1ea9m<br \/>\n&#8211; K\u1ebft c\u1ea5u v\u00e0 ki\u1ebfn tr\u00fac: lan can, tay v\u1ecbn, thang c\u00e1p, t\u1ea5m \u1ed1p<br \/>\n&#8211; \u1ed0ng trang tr\u00ed, \u1ed1ng d\u1eabn nh\u1eb9, khung m\u00e1y, t\u1ee7 \u0111i\u1ec7n (m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb)<br \/>\n&#8211; \u00d4 t\u00f4 \u2013 xe m\u00e1y \u2013 thi\u1ebft b\u1ecb d\u00e2n d\u1ee5ng: \u1ed1p trang tr\u00ed, ph\u1ee5 ki\u1ec7n ch\u1ecbu th\u1eddi ti\u1ebft v\u1eeba ph\u1ea3i<\/p>\n<h2 id=\"toc-9-chat-luong-kiem-dinh-va-nhan-biet-mac\"><span class=\"ez-toc-section\" id=\"Chat_luong_kiem_dinh_va_nhan_biet_mac\"><\/span>Ch\u1ea5t l\u01b0\u1ee3ng, ki\u1ec3m \u0111\u1ecbnh v\u00e0 nh\u1eadn bi\u1ebft m\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; T\u00e0i li\u1ec7u MTC 3.1 (EN 10204) t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t\/nh\u00e0 nh\u1eadp kh\u1ea9u \u2013 y\u00eau c\u1ea7u khi mua l\u00f4 h\u00e0ng k\u1ef9 thu\u1eadt.<br \/>\n&#8211; Ki\u1ec3m tra nhanh:<br \/>\n  &#8211; Test nam ch\u00e2m kh\u00f4ng \u0111\u1ee7 ph\u00e2n lo\u1ea1i (304 c\u00f3 th\u1ec3 h\u01a1i h\u00fat sau c\u00e1n ngu\u1ed9i)<br \/>\n  &#8211; PMI\/XRF c\u1ea7m tay \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n Cr\/Ni\/Mn ch\u00ednh x\u00e1c<br \/>\n  &#8211; Th\u1eed \u0103n m\u00f2n theo ASTM khi c\u1ea7n<br \/>\n&#8211; Sau gia c\u00f4ng\/h\u00e0n: pickling + passivation \u0111\u1ec3 ph\u1ee5c h\u1ed3i l\u1edbp th\u1ee5 \u0111\u1ed9ng Cr2O3, gi\u1ea3m nguy c\u01a1 g\u1ec9 n\u00e2u t\u1ea1i m\u1ed1i h\u00e0n\/khe.<\/p>\n<h2 id=\"toc-10-loi-thuong-gap-va-cach-tranh\"><span class=\"ez-toc-section\" id=\"Loi_thuong_gap_va_cach_tranh\"><\/span>L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch tr\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u00f9ng 304 \u1edf khu v\u1ef1c ven bi\u1ec3n\/h\u1ed3 b\u01a1i thay v\u00ec 316 \u2192 nhanh r\u1ed7: n\u00ean n\u00e2ng c\u1ea5p 316 ho\u1eb7c c\u1ea3i ti\u1ebfn thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc, ch\u1ecdn b\u1ec1 m\u1eb7t m\u1ecbn h\u01a1n.<br \/>\n&#8211; T\u1ea9y r\u1eeda b\u1eb1ng Javel\/NaClO \u2192 g\u00e2y r\u1ed7 nhanh: ch\u1ecdn ho\u00e1 ch\u1ea5t t\u1ea9y r\u1eeda kh\u00f4ng chloride, tr\u00e1ng s\u1ea1ch n\u01b0\u1edbc.<br \/>\n&#8211; Tin v\u00e0o \u201ckh\u00f4ng h\u00fat nam ch\u00e2m l\u00e0 304\u201d \u2192 sai: d\u00f9ng PMI\/XRF ho\u1eb7c ch\u1ee9ng ch\u1ec9 MTC.<br \/>\n&#8211; B\u1ecf qua passivation sau h\u00e0n\/c\u1eaft plasma \u2192 m\u00e9p \u0111en oxy ho\u00e1 l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u \u0103n m\u00f2n: c\u1ea7n t\u1ea9y g\u1ec9 + th\u1ee5 \u0111\u1ed9ng ho\u00e1.<br \/>\n&#8211; Ch\u1ecdn sai b\u1ec1 m\u1eb7t (No.4 th\u00f4) cho m\u00f4i tr\u01b0\u1eddng \u1ea9m b\u1ea9n \u2192 l\u01b0u b\u1ea9n\/khe h\u1edf: \u01b0u ti\u00ean BA\/2B ho\u1eb7c No.4 tinh 240\u2013320 grit, thi\u1ebft k\u1ebf tr\u00e1nh khe.<\/p>\n<h2 id=\"toc-11-vi-sao-inox-304-la-mac-thep-khong-gi-pho-bien-nhat\"><span class=\"ez-toc-section\" id=\"Vi_sao_inox_304_la_mac_thep_khong_gi_pho_bien_nhat_the_gioi\"><\/span>V\u00ec sao inox 304 l\u00e0 m\u00e1c th\u00e9p kh\u00f4ng g\u1ec9 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; C\u00e2n b\u1eb1ng hi\u1ec7u n\u0103ng\/gi\u00e1 th\u00e0nh t\u1ed1t: ch\u1ed1ng g\u1ec9 \u0111\u1ee7 d\u00f9ng cho ph\u1ea7n l\u1edbn m\u00f4i tr\u01b0\u1eddng \u0111\u00f4 th\u1ecb \u2013 c\u00f4ng nghi\u1ec7p nh\u1eb9, chi ph\u00ed th\u1ea5p h\u01a1n r\u00f5 so v\u1edbi 316.<br \/>\n&#8211; D\u1ec5 s\u1ea3n xu\u1ea5t, d\u1ec5 gia c\u00f4ng: h\u00e0n, d\u1eadp s\u00e2u, u\u1ed1n, \u0111\u00e1nh b\u00f3ng \u0111\u1ec1u thu\u1eadn l\u1ee3i; chu\u1ed7i cung \u1ee9ng to\u00e0n c\u1ea7u phong ph\u00fa.<br \/>\n&#8211; \u0110a d\u1ee5ng: t\u1eeb b\u1ebfp c\u00f4ng nghi\u1ec7p, b\u1ed3n b\u1ec3, \u1ed1ng trang tr\u00ed \u0111\u1ebfn k\u1ebft c\u1ea5u ki\u1ebfn tr\u00fac.<br \/>\n&#8211; An to\u00e0n v\u00e0 v\u1ec7 sinh: th\u00edch h\u1ee3p cho thi\u1ebft b\u1ecb th\u1ef1c ph\u1ea9m \u2013 khi x\u1eed l\u00fd b\u1ec1 m\u1eb7t v\u00e0 v\u1ec7 sinh \u0111\u00fang c\u00e1ch.<br \/>\n&#8211; B\u1ec1n v\u1eefng: c\u00f3 th\u1ec3 t\u00e1i ch\u1ebf cao, tu\u1ed5i th\u1ecd d\u00e0i, t\u1ed5ng chi ph\u00ed v\u00f2ng \u0111\u1eddi t\u1ed1t.<\/p>\n<h2 id=\"toc-12-goi-y-lua-chon-nhanh\"><span class=\"ez-toc-section\" id=\"Goi_y_lua_chon_nhanh\"><\/span>G\u1ee3i \u00fd l\u1ef1a ch\u1ecdn nhanh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; D\u1ef1 \u00e1n trong nh\u00e0 kh\u00f4, y\u00eau c\u1ea7u th\u1ea9m m\u1ef9: 304 b\u1ec1 m\u1eb7t BA\/No.4\/HL<br \/>\n&#8211; Ngo\u00e0i tr\u1eddi \u0111\u00f4 th\u1ecb (kh\u00f4ng ven bi\u1ec3n): 304 v\u1edbi thi\u1ebft k\u1ebf tho\u00e1t n\u01b0\u1edbc t\u1ed1t, ho\u00e0n thi\u1ec7n m\u1ecbn<br \/>\n&#8211; Ven bi\u1ec3n\/h\u1ed3 b\u01a1i\/ch\u1ee9a chloride: chuy\u1ec3n 316<br \/>\n&#8211; H\u00e0n t\u1ea5m\/\u1ed1ng d\u00e0y: \u01b0u ti\u00ean 304L + passivation<br \/>\n&#8211; Gia c\u00f4ng c\u1eaft g\u1ecdt nhi\u1ec1u: c\u00e2n nh\u1eafc 303 (n\u1ebfu m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n nh\u1eb9)<\/p>\n<h2 id=\"toc-13-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<br \/>\n&#8211; Outokumpu Datasheet \u2013 Core 304\/304L (EN 1.4301\/1.4307)<br \/>\n&#8211; ATI (Allegheny Technologies) \u2013 Stainless Steel 304\/304L Technical Data<br \/>\n&#8211; British Stainless Steel Association (BSSA) \u2013 Grade 304 Stainless Steel<br \/>\n&#8211; AZoM \u2013 Grade 304 Stainless Steel: Properties, Fabrication and Applications<br \/>\n&#8211; Worldstainless \u2013 Guidelines for selection and use of stainless steels<\/p>\n<h2 id=\"toc-14-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 (AISI 304\/EN 1.4301) l\u00e0 l\u1ef1a ch\u1ecdn \u201cchu\u1ea9n\u201d nh\u1edd s\u1ef1 c\u00e2n b\u1eb1ng hi\u1ebfm c\u00f3 gi\u1eefa ch\u1ed1ng \u0103n m\u00f2n, c\u01a1 t\u00ednh, kh\u1ea3 n\u0103ng h\u00e0n\/t\u1ea1o h\u00ecnh v\u00e0 gi\u00e1 th\u00e0nh. D\u00f9ng \u0111\u00fang b\u1ed1i c\u1ea3nh \u2013 \u01b0u ti\u00ean 304L khi h\u00e0n d\u00e0y, chuy\u1ec3n 316 cho m\u00f4i tr\u01b0\u1eddng gi\u00e0u chloride, x\u1eed l\u00fd b\u1ec1 m\u1eb7t v\u00e0 v\u1ec7 sinh \u0111\u00fang c\u00e1ch \u2013 b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c tu\u1ed5i th\u1ecd v\u00e0 t\u1ed5ng chi ph\u00ed v\u00f2ng \u0111\u1eddi r\u1ea5t t\u1ed1i \u01b0u. C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c, b\u1ec1 m\u1eb7t hay quy c\u00e1ch t\u1ed3n kho t\u1ea1i H\u00e0 N\u1ed9i? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c k\u1ef9 s\u01b0 v\u1eadt li\u1ec7u h\u1ed7 tr\u1ee3 v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t.<\/p>\n<p>Li\u00ean h\u1ec7: Hotline 0343.417.281 \u2013 Email inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1ea3i m\u00e3 inox 304 (AISI 304\/EN 1.4301): th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh, ch\u1ed1ng \u0103n m\u00f2n, h\u00e0n\/gia c\u00f4ng, 304 vs 304L\/316\/201, \u1ee9ng d\u1ee5ng v\u00e0 l\u01b0u \u00fd ch\u1ecdn v\u1eadt li\u1ec7u.<\/p>\n","protected":false},"author":7,"featured_media":1043,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2522","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\/2522","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=2522"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2522\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1043"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}