{"id":2432,"date":"2026-08-12T00:34:06","date_gmt":"2026-08-11T17:34:06","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/"},"modified":"2026-08-12T00:34:06","modified_gmt":"2026-08-11T17:34:06","slug":"tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/","title":{"rendered":"T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt t\u01b0 Inox cho d\u1ef1 \u00e1n: c\u00f4ng th\u1ee9c v\u00e0 v\u00ed d\u1ee5"},"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;2432&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;T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt t\u01b0 Inox cho d\u1ef1 \u00e1n: c\u00f4ng th\u1ee9c v\u00e0 v\u00ed d\u1ee5&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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Du_lieu_dau_vao_bat_buoc_va_nguyen_tac_chung\" >D\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o b\u1eaft bu\u1ed9c v\u00e0 nguy\u00ean t\u1eafc chung<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Cong_thuc_tinh_theo_tung_dang_vat_tu_Inox\" >C\u00f4ng th\u1ee9c t\u00ednh theo t\u1eebng d\u1ea1ng v\u1eadt t\u01b0 Inox<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Tamplate_va_phoi_cat_tu_coil\" >T\u1ea5m\/plate v\u00e0 ph\u00f4i c\u1eaft t\u1eeb coil<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Ong_tron_hantrang_tri_ASTM_A554_va_ong_cong_nghiep_ASTM_A312\" >\u1ed0ng tr\u00f2n h\u00e0n\/trang tr\u00ed (ASTM A554) v\u00e0 \u1ed1ng c\u00f4ng nghi\u1ec7p (ASTM A312)<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Ong_hop_vuongchu_nhat_hop_Inox\" >\u1ed0ng h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt (h\u1ed9p 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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Thanh_tron_dac_round_bar\" >Thanh tr\u00f2n \u0111\u1eb7c (round bar)<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Thanh_la_det_flat_bar\" >Thanh la d\u1eb9t (flat bar)<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Thep_goc_chu_L_angle_bar_deukhong_deu_canh\" >Th\u00e9p g\u00f3c ch\u1eef L (angle bar, \u0111\u1ec1u\/kh\u00f4ng \u0111\u1ec1u c\u1ea1nh)<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#UCHI_hoac_tiet_dien_dac_biet\" >U\/C\/H\/I ho\u1eb7c ti\u1ebft di\u1ec7n \u0111\u1eb7c bi\u1ec7t<\/a><\/li><\/ul><\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Cac_buoc_tinh_cho_ca_du_an_chuan_co_hao_hut\" >C\u00e1c b\u01b0\u1edbc t\u00ednh cho c\u1ea3 d\u1ef1 \u00e1n (chu\u1ea9n, c\u00f3 hao h\u1ee5t)<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Vi_du_tinh_nhanh_du_de_lap_BOM\" >V\u00ed d\u1ee5 t\u00ednh nhanh (\u0111\u1ee7 \u0111\u1ec3 l\u1eadp BOM)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/inoxcuongthinh.com\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Vi_du_1_Tam_304_day_3_mm_kho_15_%C3%97_30_m\" >V\u00ed d\u1ee5 1: T\u1ea5m 304 d\u00e0y 3 mm, kh\u1ed5 1.5 \u00d7 3.0 m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/inoxcuongthinh.com\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Vi_du_2_Ong_tron_304_O1143_%C3%97_20_mm_tong_65_m\" >V\u00ed d\u1ee5 2: \u1ed0ng tr\u00f2n 304 \u00d8114.3 \u00d7 2.0 mm, t\u1ed5ng 65 m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/inoxcuongthinh.com\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Vi_du_3_Hop_304_40_%C3%97_80_%C3%97_12_mm_tong_120_m\" >V\u00ed d\u1ee5 3: H\u1ed9p 304 40 \u00d7 80 \u00d7 1.2 mm, t\u1ed5ng 120 m<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Vi_du_4_Thanh_la_det_304_40_%C3%97_5_mm_tong_80_m\" >V\u00ed d\u1ee5 4: Thanh la d\u1eb9t 304 40 \u00d7 5 mm, t\u1ed5ng 80 m<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Vi_du_5_Thep_goc_304_L50_%C3%97_50_%C3%97_5_mm_tong_50_m\" >V\u00ed d\u1ee5 5: Th\u00e9p g\u00f3c 304 L50 \u00d7 50 \u00d7 5 mm, t\u1ed5ng 50 m<\/a><\/li><\/ul><\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Checklist_chong_sai_sot_khi_tinh_khoi_luong_Inox\" >Checklist ch\u1ed1ng sai s\u00f3t khi t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng Inox<\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Cong_cu_tinh_nhanh_hang_so_rut_gon_cho_304\" >C\u00f4ng c\u1ee5 t\u00ednh nhanh (h\u1eb1ng s\u1ed1 r\u00fat g\u1ecdn cho 304)<\/a><\/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\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#Nguon_tham_khao_ky_thuat\" >Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/inoxcuongthinh.com\/tinh-khoi-luong-vat-tu-inox-cho-du-an-cong-thuc-va-vi-du\/#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-du-lieu-dau-vao-bat-buoc-va-nguyen-tac-chung\">D\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o b\u1eaft bu\u1ed9c v\u00e0 nguy\u00ean t\u1eafc chung<\/a><\/li>\n<li><a href=\"#toc-1-cong-thuc-tinh-theo-tung-dang-vat-tu-inox\">C\u00f4ng th\u1ee9c t\u00ednh theo t\u1eebng d\u1ea1ng v\u1eadt t\u01b0 Inox<\/a><\/li>\n<li><a href=\"#toc-2-cac-buoc-tinh-cho-ca-du-an-chuan-co-hao-hut\">C\u00e1c b\u01b0\u1edbc t\u00ednh cho c\u1ea3 d\u1ef1 \u00e1n (chu\u1ea9n, c\u00f3 hao h\u1ee5t)<\/a><\/li>\n<li><a href=\"#toc-3-vi-du-tinh-nhanh-du-de-lap-bom\">V\u00ed d\u1ee5 t\u00ednh nhanh (\u0111\u1ee7 \u0111\u1ec3 l\u1eadp BOM)<\/a><\/li>\n<li><a href=\"#toc-4-checklist-chong-sai-sot-khi-tinh-khoi-luong-inox\">Checklist ch\u1ed1ng sai s\u00f3t khi t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng Inox<\/a><\/li>\n<li><a href=\"#toc-5-cong-cu-tinh-nhanh-hang-so-rut-gon-cho-304\">C\u00f4ng c\u1ee5 t\u00ednh nhanh (h\u1eb1ng s\u1ed1 r\u00fat g\u1ecdn cho 304)<\/a><\/li>\n<li><a href=\"#toc-6-nguon-tham-khao-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/a><\/li>\n<li><a href=\"#toc-7-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>T\u00ednh \u0111\u00fang kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt t\u01b0 Inox ngay t\u1eeb giai \u0111o\u1ea1n d\u1ef1 to\u00e1n l\u00e0 ch\u00eca kh\u00f3a ki\u1ec3m so\u00e1t chi ph\u00ed, t\u1ed1i \u01b0u mua h\u00e0ng v\u00e0 ti\u1ebfn \u0111\u1ed9 thi c\u00f4ng. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p c\u00f4ng th\u1ee9c chu\u1ea9n, h\u1ec7 s\u1ed1 theo m\u00e1c th\u00e9p, c\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u00e0 c\u00e1ch c\u1ed9ng hao h\u1ee5t \u0111\u1ec3 b\u1ea1n l\u1eadp b\u1ea3ng ti\u00ean l\u01b0\u1ee3ng\/bom v\u1eadt t\u01b0 Inox ch\u00ednh x\u00e1c cho m\u1ecdi d\u1ef1 \u00e1n.<\/p>\n<h2 id=\"toc-0-du-lieu-dau-vao-bat-buoc-va-nguyen-tac-chung\"><span class=\"ez-toc-section\" id=\"Du_lieu_dau_vao_bat_buoc_va_nguyen_tac_chung\"><\/span>D\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o b\u1eaft bu\u1ed9c v\u00e0 nguy\u00ean t\u1eafc chung<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; X\u00e1c \u0111\u1ecbnh m\u00e1c Inox (201, 304, 316&#8230;) v\u00e0 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m: t\u1ea5m\/plate (ASTM A240\/A480), \u1ed1ng trang tr\u00ed (ASTM A554), \u1ed1ng c\u00f4ng nghi\u1ec7p h\u00e0n\/\u0111\u00fac (ASTM A312), k\u00edch th\u01b0\u1edbc \u1ed1ng theo ASME B36.19M, thanh la\/tr\u00f2n\/g\u00f3c (ASTM A276\/A484).<br \/>\n&#8211; Dung sai k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 d\u00e0y: tham chi\u1ebfu ASTM A480 (t\u1ea5m) v\u00e0 ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u1ee9ng cho \u1ed1ng\/thanh; dung sai \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi tr\u1ecdng l\u01b0\u1ee3ng th\u1ef1c t\u1ebf.<br \/>\n&#8211; M\u1eadt \u0111\u1ed9 v\u1eadt li\u1ec7u (\u03c1) \u2013 d\u00f9ng \u0111\u1ec3 chuy\u1ec3n th\u1ec3 t\u00edch sang kh\u1ed1i l\u01b0\u1ee3ng:<br \/>\n  &#8211; Inox 201: 7.90 g\/cm\u00b3 \u2248 7,900 kg\/m\u00b3<br \/>\n  &#8211; Inox 304\/304L: 7.93\u20138.00 g\/cm\u00b3 (d\u00f9ng 7.93 ho\u1eb7c 7,930 kg\/m\u00b3 khi kh\u00f4ng c\u00f3 ch\u1ec9 \u0111\u1ecbnh)<br \/>\n  &#8211; Inox 316\/316L: 7.98 g\/cm\u00b3 \u2248 7,980 kg\/m\u00b3<br \/>\n&#8211; \u0110\u01a1n v\u1ecb nh\u1ea5t qu\u00e1n: n\u00ean t\u00ednh theo mm (k\u00edch th\u01b0\u1edbc), m (chi\u1ec1u d\u00e0i), kg (kh\u1ed1i l\u01b0\u1ee3ng). Chuy\u1ec3n \u0111\u1ed5i c\u01a1 b\u1ea3n: 1 mm = 0.001 m; 1 m\u00b3 = 1,000,000,000 mm\u00b3.<\/p>\n<p>Nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i:<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng = Th\u1ec3 t\u00edch \u00d7 M\u1eadt \u0111\u1ed9.<br \/>\n&#8211; Th\u1ec3 t\u00edch = Di\u1ec7n t\u00edch ti\u1ebft di\u1ec7n \u00d7 Chi\u1ec1u d\u00e0i (\u0111\u1ed1i v\u1edbi \u1ed1ng, thanh, h\u1ed9p) ho\u1eb7c Di\u1ec7n t\u00edch t\u1ea5m \u00d7 \u0110\u1ed9 d\u00e0y (\u0111\u1ed1i v\u1edbi t\u1ea5m).<\/p>\n<h2 id=\"toc-1-cong-thuc-tinh-theo-tung-dang-vat-tu-inox\"><span class=\"ez-toc-section\" id=\"Cong_thuc_tinh_theo_tung_dang_vat_tu_Inox\"><\/span>C\u00f4ng th\u1ee9c t\u00ednh theo t\u1eebng d\u1ea1ng v\u1eadt t\u01b0 Inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Tamplate_va_phoi_cat_tu_coil\"><\/span>T\u1ea5m\/plate v\u00e0 ph\u00f4i c\u1eaft t\u1eeb coil<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; C\u00f4ng th\u1ee9c t\u1ed5ng qu\u00e1t:<br \/>\n  &#8211; Kh\u1ed1i l\u01b0\u1ee3ng (kg) = D\u00e0i (m) \u00d7 R\u1ed9ng (m) \u00d7 [\u0110\u1ed9 d\u00e0y (mm)\/1000] \u00d7 \u03c1 (kg\/m\u00b3)<br \/>\n&#8211; V\u1edbi Inox 304 (\u03c1 \u2248 7,930 kg\/m\u00b3), c\u00f3 th\u1ec3 r\u00fat g\u1ecdn:<br \/>\n  &#8211; Kh\u1ed1i l\u01b0\u1ee3ng (kg) = D\u00e0i (m) \u00d7 R\u1ed9ng (m) \u00d7 \u0110\u1ed9 d\u00e0y (mm) \u00d7 7.93<br \/>\n&#8211; V\u00ed d\u1ee5 nhanh: T\u1ea5m 1.5 \u00d7 3.0 m \u00d7 d\u00e0y 3.0 mm (304)<br \/>\n  &#8211; Kh\u1ed1i l\u01b0\u1ee3ng = 1.5 \u00d7 3.0 \u00d7 3.0 \u00d7 7.93 \u2248 107.1 kg<\/p>\n<p>G\u1ee3i \u00fd dung sai tham kh\u1ea3o: theo ASTM A480, \u0111\u1ed9 d\u00e0y t\u1ea5m c\u00e1n ngu\u1ed9i\/c\u00e1n n\u00f3ng c\u00f3 dung sai \u00b1(0.03\u20130.3 mm) t\u00f9y d\u1ea3i d\u00e0y, c\u00f3 th\u1ec3 l\u1ec7ch 0.5\u20131.5% kh\u1ed1i l\u01b0\u1ee3ng so v\u1edbi l\u00fd thuy\u1ebft.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ong_tron_hantrang_tri_ASTM_A554_va_ong_cong_nghiep_ASTM_A312\"><\/span>\u1ed0ng tr\u00f2n h\u00e0n\/trang tr\u00ed (ASTM A554) v\u00e0 \u1ed1ng c\u00f4ng nghi\u1ec7p (ASTM A312)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; K\u00fd hi\u1ec7u: D_o = \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (mm), t = \u0111\u1ed9 d\u00e0y (mm).<br \/>\n&#8211; Di\u1ec7n t\u00edch kim lo\u1ea1i ti\u1ebft di\u1ec7n: A = \u03c0 \u00d7 (D_o \u00d7 t \u2212 t\u00b2)<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng tr\u00ean m\u00e9t (kg\/m) = A \u00d7 \u03c1(mm) \u00d7 1 m<br \/>\n  &#8211; V\u1edbi \u03c1 theo kg\/mm\u00b3 = \u03c1(kg\/m\u00b3) \u00d7 10\u207b\u2079<br \/>\n  &#8211; R\u00fat g\u1ecdn cho 304 (\u03c1 = 7,930 kg\/m\u00b3): kg\/m \u2248 0.02490 \u00d7 (D_o \u00d7 t \u2212 t\u00b2)<br \/>\n  &#8211; R\u00fat g\u1ecdn cho 316 (\u03c1 = 7,980 kg\/m\u00b3): kg\/m \u2248 0.02507 \u00d7 (D_o \u00d7 t \u2212 t\u00b2)<br \/>\n&#8211; L\u01b0u \u00fd: \u1ed0ng chu\u1ea9n c\u00f4ng nghi\u1ec7p d\u00f9ng ASME B36.19M (v\u00ed d\u1ee5 \u1ed0ng NPS 2&#8243;, 2-1\/2&#8243;\u2026; SCH10\/40 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 d\u00e0y). \u0110\u1eebng nh\u1ea7m DN v\u1edbi \u00d8 ngo\u00e0i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ong_hop_vuongchu_nhat_hop_Inox\"><\/span>\u1ed0ng h\u1ed9p vu\u00f4ng\/ch\u1eef nh\u1eadt (h\u1ed9p Inox)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; K\u00fd hi\u1ec7u: B = chi\u1ec1u r\u1ed9ng (mm), H = chi\u1ec1u cao (mm), t = \u0111\u1ed9 d\u00e0y (mm).<br \/>\n&#8211; B\u1ecf qua b\u00e1n k\u00ednh g\u00f3c (x\u1ea5p x\u1ec9 r\u1ea5t t\u1ed1t khi t nh\u1ecf so v\u1edbi B, H):<br \/>\n  &#8211; A = B \u00d7 H \u2212 (B \u2212 2t) \u00d7 (H \u2212 2t) = 2t \u00d7 (B + H \u2212 2t)<br \/>\n  &#8211; Kh\u1ed1i l\u01b0\u1ee3ng (kg\/m), 304: w \u2248 0.00793 \u00d7 A<br \/>\n&#8211; Th\u1ef1c t\u1ebf c\u00e1c g\u00f3c bo l\u00e0m di\u1ec7n t\u00edch t\u0103ng\/gi\u1ea3m nh\u1eb9; c\u1ed9ng th\u00eam 1\u20133% \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh n\u1ebfu c\u1ea7n \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thanh_tron_dac_round_bar\"><\/span>Thanh tr\u00f2n \u0111\u1eb7c (round bar)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; K\u00fd hi\u1ec7u: d = \u0111\u01b0\u1eddng k\u00ednh (mm)<br \/>\n&#8211; A = \u03c0 \u00d7 d\u00b2 \/ 4<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng (kg\/m), 304: w \u2248 0.00622 \u00d7 d\u00b2<br \/>\n&#8211; V\u1edbi 316: w \u2248 0.00626 \u00d7 d\u00b2<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thanh_la_det_flat_bar\"><\/span>Thanh la d\u1eb9t (flat bar)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; K\u00fd hi\u1ec7u: b = b\u1ea3n r\u1ed9ng (mm), t = d\u00e0y (mm)<br \/>\n&#8211; A = b \u00d7 t<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng (kg\/m), 304: w \u2248 0.00793 \u00d7 b \u00d7 t<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thep_goc_chu_L_angle_bar_deukhong_deu_canh\"><\/span>Th\u00e9p g\u00f3c ch\u1eef L (angle bar, \u0111\u1ec1u\/kh\u00f4ng \u0111\u1ec1u c\u1ea1nh)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; K\u00fd hi\u1ec7u: B1, B2 = c\u1ea1nh (mm), t = d\u00e0y (mm)<br \/>\n&#8211; X\u1ea5p x\u1ec9 ti\u1ebft di\u1ec7n: A = (B1 + B2) \u00d7 t \u2212 t\u00b2<br \/>\n&#8211; Kh\u1ed1i l\u01b0\u1ee3ng (kg\/m), 304: w \u2248 0.00793 \u00d7 [(B1 + B2) \u00d7 t \u2212 t\u00b2]<br \/>\n&#8211; L\u01b0u \u00fd: G\u00f3c bo l\u00e0m thay \u0111\u1ed5i r\u1ea5t nh\u1ecf; c\u1ed9ng hi\u1ec7u ch\u1ec9nh 1\u20132% n\u1ebfu c\u1ea7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"UCHI_hoac_tiet_dien_dac_biet\"><\/span>U\/C\/H\/I ho\u1eb7c ti\u1ebft di\u1ec7n \u0111\u1eb7c bi\u1ec7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; D\u00f9ng di\u1ec7n t\u00edch ti\u1ebft di\u1ec7n A (mm\u00b2) trong catalogue c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t\/ti\u00eau chu\u1ea9n, sau \u0111\u00f3 nh\u00e2n 0.00793 (cho 304) \u0111\u1ec3 ra kg\/m.<br \/>\n&#8211; N\u1ebfu kh\u00f4ng c\u00f3 A: ph\u00e2n t\u00edch h\u00ecnh h\u1ecdc theo c\u00e1c b\u1ea3n ph\u1eb3ng, tr\u1eeb ph\u1ea7n ch\u1ed3ng l\u1eafp t\u1ea1i g\u00f3c (nh\u01b0 v\u1edbi L).<\/p>\n<h2 id=\"toc-2-cac-buoc-tinh-cho-ca-du-an-chuan-co-hao-hut\"><span class=\"ez-toc-section\" id=\"Cac_buoc_tinh_cho_ca_du_an_chuan_co_hao_hut\"><\/span>C\u00e1c b\u01b0\u1edbc t\u00ednh cho c\u1ea3 d\u1ef1 \u00e1n (chu\u1ea9n, c\u00f3 hao h\u1ee5t)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1) R\u00e0 b\u1ea3n v\u1ebd v\u00e0 t\u00e1ch c\u1ea5u ki\u1ec7n:<br \/>\n&#8211; L\u1eadp danh m\u1ee5c theo nh\u00f3m: t\u1ea5m c\u1eaft, \u1ed1ng tr\u00f2n, h\u1ed9p, thanh \u0111\u1eb7c, ph\u1ee5 ki\u1ec7n (m\u0169 ch\u1ee5p, b\u00edch, co, t\u00ea, m\u1eb7t b\u00edch).<br \/>\n&#8211; Ch\u1ed1t m\u00e1c Inox, b\u1ec1 m\u1eb7t (No.1, 2B, HL, No.4, BA, g\u01b0\u01a1ng), ti\u00eau chu\u1ea9n.<\/p>\n<p>2) T\u00ednh chi\u1ec1u d\u00e0i ph\u00e1t tri\u1ec3n (n\u1ebfu c\u00f3 u\u1ed1n\/gh\u00e9p):<br \/>\n&#8211; V\u1edbi chi ti\u1ebft u\u1ed1n t\u1eeb t\u1ea5m: d\u00f9ng K-factor ph\u1ed5 bi\u1ebfn 0.3\u20130.5 \u0111\u1ec3 \u01b0\u1edbc l\u01b0\u1ee3ng chi\u1ec1u d\u00e0i tr\u1ea3i (flat length).<br \/>\n&#8211; C\u00f4ng th\u1ee9c g\u1ea7n \u0111\u00fang cho m\u1ed9t g\u00f3c u\u1ed1n \u03b1 (\u0111\u1ed9): Bend Allowance BA \u2248 \u03c0 \u00d7 (R + K \u00d7 t) \u00d7 \u03b1 \/ 180.<br \/>\n&#8211; Flat length = t\u1ed5ng \u0111o\u1ea1n th\u1eb3ng tr\u01b0\u1edbc u\u1ed1n \u2212 t\u1ed5ng Bend Deduction + t\u1ed5ng BA. Khi kh\u00f4ng c\u00f3 d\u1eef li\u1ec7u d\u1ee5ng c\u1ee5, d\u00f9ng K = 0.33\u20130.4 l\u00e0 an to\u00e0n cho Inox c\u00e1n ngu\u1ed9i.<\/p>\n<p>3) \u00c1p c\u00f4ng th\u1ee9c ti\u1ebft di\u1ec7n v\u00e0 t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng t\u1eebng chi ti\u1ebft:<br \/>\n&#8211; D\u00f9ng c\u00e1c c\u00f4ng th\u1ee9c theo d\u1ea1ng v\u1eadt t\u01b0 \u1edf m\u1ee5c tr\u00ean. T\u00ednh ri\u00eang theo t\u1eebng m\u00e1c.<\/p>\n<p>4) C\u1ed9ng hao h\u1ee5t th\u1ef1c t\u1ebf:<br \/>\n&#8211; C\u1eaft t\u1ea5m CNC\/laser\/plasma: 2\u20134% (t\u1ed1i \u01b0u nesting t\u1ed1t th\u00ec 2\u20133%).<br \/>\n&#8211; \u1ed0ng\/h\u1ed9p (c\u1eaft + m\u1ed1i n\u1ed1i): 1\u20132% cho h\u1ec7 trang tr\u00ed; 2\u20133% cho h\u1ec7 c\u00f4ng nghi\u1ec7p nhi\u1ec1u ph\u1ee5 ki\u1ec7n.<br \/>\n&#8211; Gia c\u00f4ng u\u1ed1n\/\u0111\u1ed9t\/\u0111\u00e1nh b\u00f3ng: 1\u20133% (Inox d\u00e0y\/\u0111\u00e1nh hairline th\u00eam 0.5\u20131%).<br \/>\n&#8211; Dung sai \u0111\u1ed9 d\u00e0y\/\u0111\u01b0\u1eddng k\u00ednh nh\u00e0 m\u00e1y: 0.5\u20131.5% t\u00f9y m\u00e1c v\u00e0 d\u1ea3i d\u00e0y (theo ASTM).<br \/>\n&#8211; H\u1ec7 s\u1ed1 t\u1ed5ng qu\u00e1t khuy\u1ebfn ngh\u1ecb cho d\u1ef1 to\u00e1n: 3\u20136% t\u00f9y \u0111\u1ed9 ph\u1ee9c t\u1ea1p.<\/p>\n<p>5) Quy \u0111\u1ed5i ra \u0111\u01a1n v\u1ecb mua h\u00e0ng:<br \/>\n&#8211; T\u1ea5m: k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n 1219 \u00d7 2438 mm (4\u00d78 ft), 1219 \u00d7 3048 mm (4\u00d710 ft), 1500 \u00d7 3000 mm\u2026; t\u00ednh s\u1ed1 t\u1ea5m theo ph\u01b0\u01a1ng \u00e1n c\u1eaft.<br \/>\n&#8211; \u1ed0ng\/h\u1ed9p\/thanh: quy \u0111\u1ed5i v\u1ec1 s\u1ed1 \u201cc\u00e2y\u201d 6 m (ph\u1ed5 bi\u1ebfn \u1edf th\u1ecb tr\u01b0\u1eddng VN) ho\u1eb7c 5.8 m t\u00f9y l\u00f4.<br \/>\n&#8211; Ph\u1ee5 ki\u1ec7n: tra catalogue (co, t\u00ea, b\u00edch theo DN\/SCH); c\u1ed9ng th\u00eam 2\u20133% cho v\u1eadt t\u01b0 ph\u1ee5 (m\u0169 b\u1ecbt, clamp, ke g\u00f3c\u2026).<\/p>\n<p>6) V\u1eadt t\u01b0 h\u00e0n v\u00e0 v\u1eadt t\u01b0 ph\u1ee5:<br \/>\n&#8211; D\u00e2y h\u00e0n\/TIG rod: kinh nghi\u1ec7m nhanh cho m\u1ed1i h\u00e0n g\u00f3c 3\u20135 mm l\u00e0 ~0.5\u20131.0 kg d\u00e2y h\u00e0n\/10 m m\u1ed1i h\u00e0n, t\u00f9y v\u1ecb tr\u00ed v\u00e0 th\u1ee3.<br \/>\n&#8211; H\u00f3a ch\u1ea5t\/passivation\/nh\u00e1m n\u1ec9: \u01b0\u1edbc th\u00eam 0.5\u20131% gi\u00e1 tr\u1ecb Inox cho ho\u00e0n thi\u1ec7n c\u00f4ng tr\u00ecnh trang tr\u00ed; c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m ph\u1ee5 thu\u1ed9c m\u1ee9c pickling.<\/p>\n<h2 id=\"toc-3-vi-du-tinh-nhanh-du-de-lap-bom\"><span class=\"ez-toc-section\" id=\"Vi_du_tinh_nhanh_du_de_lap_BOM\"><\/span>V\u00ed d\u1ee5 t\u00ednh nhanh (\u0111\u1ee7 \u0111\u1ec3 l\u1eadp BOM)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du_1_Tam_304_day_3_mm_kho_15_%C3%97_30_m\"><\/span>V\u00ed d\u1ee5 1: T\u1ea5m 304 d\u00e0y 3 mm, kh\u1ed5 1.5 \u00d7 3.0 m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Kh\u1ed1i l\u01b0\u1ee3ng\/t\u1ea5m = 1.5 \u00d7 3.0 \u00d7 3 \u00d7 7.93 \u2248 107.1 kg.<br \/>\n&#8211; 10 t\u1ea5m \u2192 1,071 kg. Th\u00eam hao h\u1ee5t c\u1eaft 3% \u2192 1,103 kg.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du_2_Ong_tron_304_O1143_%C3%97_20_mm_tong_65_m\"><\/span>V\u00ed d\u1ee5 2: \u1ed0ng tr\u00f2n 304 \u00d8114.3 \u00d7 2.0 mm, t\u1ed5ng 65 m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; w\/m (304) = 0.02490 \u00d7 (114.3 \u00d7 2.0 \u2212 2.0\u00b2) = 0.02490 \u00d7 224.6 \u2248 5.593 kg\/m.<br \/>\n&#8211; T\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng = 5.593 \u00d7 65 \u2248 363.5 kg.<br \/>\n&#8211; Hao h\u1ee5t 2% \u2192 371 kg. Quy \u0111\u1ed5i: 65 m \u2248 11 c\u00e2y 6 m (66 m), d\u1ef1 ph\u00f2ng c\u1eaft c\u00f2n t\u1ed1t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du_3_Hop_304_40_%C3%97_80_%C3%97_12_mm_tong_120_m\"><\/span>V\u00ed d\u1ee5 3: H\u1ed9p 304 40 \u00d7 80 \u00d7 1.2 mm, t\u1ed5ng 120 m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; A = 2t(B + H \u2212 2t) = 2 \u00d7 1.2 \u00d7 (80 + 40 \u2212 2.4) = 282.24 mm\u00b2.<br \/>\n&#8211; w\/m = 0.00793 \u00d7 282.24 \u2248 2.238 kg\/m.<br \/>\n&#8211; T\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng = 2.238 \u00d7 120 \u2248 268.6 kg.<br \/>\n&#8211; C\u1ed9ng 2% (g\u00f3c bo + c\u1eaft) \u2192 274 kg. Quy \u0111\u1ed5i: 120 m \u2248 20 c\u00e2y 6 m.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du_4_Thanh_la_det_304_40_%C3%97_5_mm_tong_80_m\"><\/span>V\u00ed d\u1ee5 4: Thanh la d\u1eb9t 304 40 \u00d7 5 mm, t\u1ed5ng 80 m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; w\/m = 0.00793 \u00d7 40 \u00d7 5 = 1.586 kg\/m.<br \/>\n&#8211; T\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng = 1.586 \u00d7 80 \u2248 126.9 kg. Hao h\u1ee5t 1% \u2192 128.2 kg.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du_5_Thep_goc_304_L50_%C3%97_50_%C3%97_5_mm_tong_50_m\"><\/span>V\u00ed d\u1ee5 5: Th\u00e9p g\u00f3c 304 L50 \u00d7 50 \u00d7 5 mm, t\u1ed5ng 50 m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; A = (50 + 50) \u00d7 5 \u2212 5\u00b2 = 475 mm\u00b2.<br \/>\n&#8211; w\/m = 0.00793 \u00d7 475 \u2248 3.763 kg\/m.<br \/>\n&#8211; T\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng = 3.763 \u00d7 50 \u2248 188.2 kg. Hao h\u1ee5t 2% \u2192 192.0 kg.<\/p>\n<h2 id=\"toc-4-checklist-chong-sai-sot-khi-tinh-khoi-luong-inox\"><span class=\"ez-toc-section\" id=\"Checklist_chong_sai_sot_khi_tinh_khoi_luong_Inox\"><\/span>Checklist ch\u1ed1ng sai s\u00f3t khi t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng Inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Kh\u00f4ng nh\u1ea7m DN v\u1edbi \u00d8 ngo\u00e0i khi t\u00ednh \u1ed1ng theo ASME B36.19M; ch\u1ecdn \u0111\u00fang SCH \u0111\u1ec3 c\u00f3 t.<br \/>\n&#8211; Ki\u1ec3m tra dung sai \u0111\u1ed9 d\u00e0y\/chi\u1ec1u r\u1ed9ng t\u1ea5m; d\u00f9ng \u03c1 theo \u0111\u00fang m\u00e1c (201 < 304 \u2272 316).\n- T\u00e1ch ri\u00eang ph\u1ea7n l\u1ed7 khoan \u0111\u1ee5c l\u1edbn (n\u1ebfu c\u1eaft b\u1ecf) \u0111\u1ec3 kh\u00f4ng t\u00ednh d\u01b0 kh\u1ed1i l\u01b0\u1ee3ng.\n- V\u1edbi chi ti\u1ebft u\u1ed1n: \u00e1p d\u1ee5ng K-factor ph\u00f9 h\u1ee3p; x\u00e1c nh\u1eadn b\u00e1n k\u00ednh u\u1ed1n R c\u1ee7a x\u01b0\u1edfng.\n- T\u1ed1i \u01b0u nesting t\u1ea5m v\u00e0 chi\u1ec1u d\u00e0i c\u1eaft \u1ed1ng\/h\u1ed9p \u0111\u1ec3 gi\u1ea3m \u0111o\u1ea1n d\u01b0; ch\u1ed1t quy c\u00e1ch th\u01b0\u01a1ng m\u1ea1i (t\u1ea5m kh\u1ed5, c\u00e2y 6 m).\n- C\u1ed9ng \u0111\u1ee7 v\u1eadt t\u01b0 ph\u1ee5 (ph\u1ee5 ki\u1ec7n, d\u00e2y h\u00e0n, n\u1eafp ch\u1ee5p, b\u00edch, clamp, bul\u00f4ng Inox).\n- Khi y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t cao (HL\/No.4\/BA\/g\u01b0\u01a1ng), c\u1ed9ng th\u00eam 0.5\u20131.5% hao h\u1ee5t ho\u00e0n thi\u1ec7n.\n\n\n\n<h2 id=\"toc-5-cong-cu-tinh-nhanh-hang-so-rut-gon-cho-304\"><span class=\"ez-toc-section\" id=\"Cong_cu_tinh_nhanh_hang_so_rut_gon_cho_304\"><\/span>C\u00f4ng c\u1ee5 t\u00ednh nhanh (h\u1eb1ng s\u1ed1 r\u00fat g\u1ecdn cho 304)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; T\u1ea5m\/plate: Kg = D\u00e0i(m) \u00d7 R\u1ed9ng(m) \u00d7 D\u00e0y(mm) \u00d7 7.93.<br \/>\n&#8211; \u1ed0ng tr\u00f2n: Kg\/m = 0.02490 \u00d7 (D_o \u00d7 t \u2212 t\u00b2).<br \/>\n&#8211; H\u1ed9p CN: Kg\/m = 0.00793 \u00d7 [B \u00d7 H \u2212 (B \u2212 2t)(H \u2212 2t)] = 0.01586 \u00d7 t \u00d7 (B + H \u2212 2t).<br \/>\n&#8211; La d\u1eb9t: Kg\/m = 0.00793 \u00d7 b \u00d7 t.<br \/>\n&#8211; Tr\u00f2n \u0111\u1eb7c: Kg\/m = 0.00622 \u00d7 d\u00b2.<br \/>\n&#8211; L g\u00f3c: Kg\/m = 0.00793 \u00d7 [(B1 + B2) \u00d7 t \u2212 t\u00b2].<\/p>\n<p>\u0110\u1ed5i sang 316: t\u0103ng ~0.6\u20131.5% (do \u03c1 7.98 > 7.93). \u0110\u1ed5i sang 201: gi\u1ea3m ~0.4% (\u03c1 7.90).<\/p>\n<h2 id=\"toc-6-nguon-tham-khao-ky-thuat\"><span class=\"ez-toc-section\" id=\"Nguon_tham_khao_ky_thuat\"><\/span>Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; ASTM A240\/A480: Ti\u00eau chu\u1ea9n t\u1ea5m\/plate v\u00e0 dung sai c\u00e1n ngu\u1ed9i\/c\u00e1n n\u00f3ng.<br \/>\n&#8211; ASTM A554: \u1ed0ng h\u00e0n trang tr\u00ed Inox.<br \/>\n&#8211; ASTM A312 v\u00e0 ASME B36.19M: \u1ed0ng c\u00f4ng nghi\u1ec7p Inox, k\u00edch th\u01b0\u1edbc v\u00e0 SCH.<br \/>\n&#8211; Outokumpu Stainless Steel Handbook, datasheet m\u1eadt \u0111\u1ed9 v\u00e0 t\u00ednh ch\u1ea5t austenitic (201\/304\/316).<br \/>\n&#8211; ASM Specialty Handbook: Stainless Steels (m\u1eadt \u0111\u1ed9 v\u00e0 c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n).<\/p>\n<h2 id=\"toc-7-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>Mu\u1ed1n t\u00ednh \u0111\u00fang kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt t\u01b0 Inox cho d\u1ef1 \u00e1n, h\u00e3y chu\u1ea9n h\u00f3a theo 3 b\u01b0\u1edbc: x\u00e1c \u0111\u1ecbnh \u0111\u00fang ti\u00eau chu\u1ea9n\u2013m\u00e1c\u2013k\u00edch th\u01b0\u1edbc; \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c ti\u1ebft di\u1ec7n ph\u00f9 h\u1ee3p t\u1eebng d\u1ea1ng (t\u1ea5m, \u1ed1ng, h\u1ed9p, thanh) v\u1edbi m\u1eadt \u0111\u1ed9 c\u1ee7a m\u00e1c th\u00e9p; cu\u1ed1i c\u00f9ng c\u1ed9ng hao h\u1ee5t th\u1ef1c t\u1ebf theo ph\u01b0\u01a1ng \u00e1n gia c\u00f4ng v\u00e0 quy c\u00e1ch mua h\u00e0ng. V\u1edbi c\u00e1c h\u1eb1ng s\u1ed1 r\u00fat g\u1ecdn \u1edf tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 \u01b0\u1edbc t\u00ednh nhanh v\u1edbi sai s\u1ed1 2\u20135% v\u00e0 ki\u1ec3m so\u00e1t chi ph\u00ed s\u00e1t th\u1ef1c t\u1ebf. C\u1ea7n \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n, h\u00e3y d\u00f9ng dung sai theo ASTM v\u00e0 x\u00e1c nh\u1eadn b\u00e1n k\u00ednh u\u1ed1n, g\u00f3c bo, SCH \u1ed1ng c\u1ee5 th\u1ec3 t\u1eeb nh\u00e0 cung c\u1ea5p.<\/p>\n<p>Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n t\u1ed1i \u01b0u b\u00f3c t\u00e1ch kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t cho 201\/304\/316, c\u1eaft quy c\u00e1ch theo b\u1ea3n v\u1ebd.<br \/>\nHotline: 0343.417.281<br \/>\nEmail: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn chu\u1ea9n t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng Inox m\u1ecdi d\u1ea1ng (t\u1ea5m, \u1ed1ng, h\u1ed9p, thanh). C\u00f4ng th\u1ee9c, h\u1ec7 s\u1ed1 201\/304\/316, v\u00ed d\u1ee5 th\u1ef1c t\u1ebf, t\u00ednh hao h\u1ee5t v\u00e0 quy \u0111\u1ed5i mua.<\/p>\n","protected":false},"author":7,"featured_media":1073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2432","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\/2432","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=2432"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2432\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1073"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}