{"id":64556,"date":"2026-10-26T07:39:08","date_gmt":"2026-10-26T07:39:08","guid":{"rendered":"https:\/\/www.kaysuns.com\/?post_type=blog&#038;p=64556"},"modified":"2026-10-26T07:44:33","modified_gmt":"2026-10-26T07:44:33","slug":"astm-stainless-steel-pipe-specs-dimensions","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/es\/blog\/astm-stainless-steel-pipe-specs-dimensions\/","title":{"rendered":"ASTM Stainless Steel Pipe: Specs &amp; Dimensions"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"64556\" class=\"elementor elementor-64556\" data-elementor-post-type=\"blog\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c3e1679 e-flex e-con-boxed e-con e-parent\" data-id=\"c3e1679\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-104cc19 e-con-full e-flex e-con e-child\" data-id=\"104cc19\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a2b310 elementor-widget elementor-widget-text-editor\" data-id=\"3a2b310\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<strong>ASTM stainless steel pipes<\/strong> are austenitic, ferritic, or duplex stainless steel pipes manufactured in accordance with ASTM international standards, providing exceptional corrosion resistance, mechanical strength, and heat resistance for petrochemical refineries, power plants, and offshore drilling platforms. This article focuses on the specific requirements for outer diameter, wall thickness, and precise length tolerance.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0630678 elementor-widget elementor-widget-heading\" data-id=\"0630678\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Engineers Specify an ASTM Stainless Steel Pipe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53a92b2 elementor-widget elementor-widget-text-editor\" data-id=\"53a92b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Global EPC contractors use unified material codes to eliminate manufacturing guesswork across international supply chains. When you order an ASTM stainless steel pipe, the mill must follow strict metallurgical and mechanical rules.<\/p><ul><li>This standard specifies precise chemical composition limits for carbon, chromium, nickel, and molybdenum.<\/li><li>It establishes mandatory minimum values for tensile strength, yield strength, and elongation for each production batch.<\/li><li>The dimensional table controls variations in ovality and wall thickness to ensure rapid on-site welding.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-14bff92 e-con-full e-flex e-con e-child\" data-id=\"14bff92\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f6e1d4f elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"f6e1d4f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;,&quot;h4&quot;,&quot;h5&quot;,&quot;h6&quot;],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__f6e1d4f\" aria-expanded=\"true\" aria-label=\"Abrir la tabla de contenidos\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__f6e1d4f\" aria-expanded=\"true\" aria-label=\"Cerrar la tabla de contenidos\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__f6e1d4f\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5c82364 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5c82364\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c5a9855\" data-id=\"c5a9855\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-487eb93 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"487eb93\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">What We Do<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7f55aa elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"e7f55aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;drop_cap&quot;:&quot;yes&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Plate<\/li><li>Sheet<\/li><li>Forgings<\/li><li>Round Bar<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-374cb19 elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"374cb19\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;drop_cap&quot;:&quot;yes&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Flange<\/li><li>Pipes<\/li><li>Fittings<\/li><li>Customized<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7b56c38\" data-id=\"7b56c38\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7a6a9ed elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"7a6a9ed\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Contact Us For More Information\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-411e78e elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"411e78e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjQ2ODEzIiwidG9nZ2xlIjpmYWxzZX0%3D\" target=\"_blank\" id=\"#241018\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact Us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-75de2ed elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"75de2ed\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c89de89\" data-id=\"c89de89\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c1cf159 elementor-widget elementor-widget-heading\" data-id=\"c1cf159\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM A213: High-Temperature Boiler and Exchanger Tubes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45d9da8 elementor-widget elementor-widget-text-editor\" data-id=\"45d9da8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tASTM A213 covers seamless ferritic and austenitic steel boiler, superheater, and <a href=\"https:\/\/www.kaysuns.com\/heat-exchanger-tubing-2\/\" rel=\"noopener\">heat-exchanger tubes<\/a>. Popular grades include TP304H, TP316L, TP321H, and TP347H for high-temperature creep resistance.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50d051c elementor-widget elementor-widget-text-editor\" data-id=\"50d051c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tNotice the wall thickness tolerance in the ASTM A213 table below: it allows zero negative tolerance (+20%\/0 or +22%\/0). High-pressure steam boilers cannot risk even a 0.1 mm thin spot on the tube wall. Every tube undergoes hydrostatic testing or non-destructive electric testing before leaving the factory floor.Review the exact dimensional tolerances for ASTM A213 seamless tubes in the reference table below:\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b3c55f elementor-widget elementor-widget-text-editor\" data-id=\"2b3c55f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<!-- 1. ASTM A213 -->\n<table style=\"border-collapse: collapse; width: 100%; text-align: center; font-size: 13px;\">\n    <thead>\n        <tr bgcolor=\"#A6CAF0\">\n            <th rowspan=\"2\">Dimension<br \/>Standard<\/th>\n            <th colspan=\"2\">Out Diameter<\/th>\n            <th colspan=\"2\">Wall Thickness(%)<\/th>\n            <th colspan=\"2\">Cut Length(mm)<\/th>\n        <\/tr>\n        <tr bgcolor=\"#A6CAF0\">\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td rowspan=\"8\">ASTM213<\/td>\n            <td>D &le; 25.4<\/td>\n            <td>+0.10\/-0.10<\/td>\n            <td rowspan=\"4\">D &le; 38.1<\/td>\n            <td rowspan=\"4\">+20\/0<\/td>\n            <td rowspan=\"4\">D &le; 50.8<\/td>\n            <td rowspan=\"4\">+3.0\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 25.4 &le; 38.1<\/td>\n            <td>+0.15\/-0.15<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 38.1 &le; 50.8<\/td>\n            <td>+0.20\/-0.20<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 50.8 &le; 63.5<\/td>\n            <td>+0.25\/-0.25<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 63.5 &le; 76.2<\/td>\n            <td>+0.30\/-0.30<\/td>\n            <td rowspan=\"4\">D &ge; 38.1<\/td>\n            <td rowspan=\"4\">+22\/0<\/td>\n            <td rowspan=\"4\">D &ge; 50.8<\/td>\n            <td rowspan=\"4\">+5.0\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 76.2 &le; 101.6<\/td>\n            <td>+0.38\/-0.38<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 101.6 &le; 190.5<\/td>\n            <td>+0.38\/-0.64<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 190.5 &le; 228.6<\/td>\n            <td>+0.38\/-1.14<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f7f5b04 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f7f5b04\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-480616c\" data-id=\"480616c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-78e70ba elementor-widget elementor-widget-heading\" data-id=\"78e70ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM A269: General Service Seamless and Welded Tubing<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b85aea9 elementor-widget elementor-widget-text-editor\" data-id=\"b85aea9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tNot all industrial systems require thick-walled boiler-grade tubing. The ASTM A269 standard specifies seamless and welded austenitic stainless steel tubing suitable for general corrosion-resistant, low-temperature, or high-temperature environments. Instrumentation engineers typically specify <a href=\"https:\/\/www.kaysuns.com\/stainless-steel-tubings\/\">TP316L tubing<\/a> conforming to the ASTM A269 standard for hydraulic control lines, pneumatic systems, and chemical analyzers.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9b8d48 elementor-widget elementor-widget-text-editor\" data-id=\"d9b8d48\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tUnlike A213, ASTM A269 specifies an average wall thickness tolerance of \u00b110% to 15%. This symmetrical wall thickness tolerance reduces the weight of the raw material, thereby lowering the overall procurement cost of the project. Rolling mills subject these tubes to bright annealing or acid pickling to achieve a clean, scale-free inner surface suitable for precision instruments. Of course, you can order pre-treated products directly from <a href=\"\/\">Kaysuns<\/a>. For in-stock items, we typically ship within one week; for custom products, we ship within 60 days.<br \/><a href=\"https:\/\/www.kaysuns.com\/contact-kaysuns\/\">Contact us<\/a> today for a free and quick quote. Please see below for the standard outer diameter, wall thickness, and length tolerances for ASTM A269:\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d26faec elementor-widget elementor-widget-text-editor\" data-id=\"d26faec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<!-- 2. ASTM A269 -->\n<table style=\"border-collapse: collapse; width: 100%; text-align: center; font-size: 13px;\">\n    <thead>\n        <tr bgcolor=\"#A6CAF0\">\n            <th rowspan=\"2\">Dimension<br \/>Standard<\/th>\n            <th colspan=\"2\">Out Diameter<\/th>\n            <th colspan=\"2\">Wall Thickness(%)<\/th>\n            <th colspan=\"2\">Cut Length(mm)<\/th>\n        <\/tr>\n        <tr bgcolor=\"#A6CAF0\">\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td rowspan=\"5\">ASTM A269<\/td>\n            <td>D &le; 12.7<\/td>\n            <td rowspan=\"2\">+0.13\/-0.13<\/td>\n            <td>D &le; 12.7<\/td>\n            <td>+15\/-15<\/td>\n            <td rowspan=\"2\">D &le; 38.1<\/td>\n            <td rowspan=\"2\">+3.2\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 12.7 &le; 38.1<\/td>\n            <td rowspan=\"4\">&gt; 12.7 &le; 203.2<\/td>\n            <td rowspan=\"4\">+10\/-10<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 38.1 &le; 88.9<\/td>\n            <td>+0.25\/-0.25<\/td>\n            <td rowspan=\"3\">D &gt; 38.1<\/td>\n            <td rowspan=\"3\">+4.8\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 88.9 &le; 139.7<\/td>\n            <td>+0.38\/-0.38<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 139.7 &le; 203.2<\/td>\n            <td>+0.76\/-0.76<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4e429f0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4e429f0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2289daf\" data-id=\"2289daf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-56e286e elementor-widget elementor-widget-heading\" data-id=\"56e286e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM A312: The Standard ASTM Stainless Steel Pipe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c41d36 elementor-widget elementor-widget-text-editor\" data-id=\"8c41d36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tASTM A312 is the most widely used ASTM standard for <a href=\"https:\/\/www.kaysuns.com\/stainless-steel-pipes\/\" rel=\"noopener\">stainless steel pipes<\/a> in the global industrial sector, covering austenitic stainless steel tubes that are seamless, longitudinally welded, and heavily cold-worked and welded. Refineries, LNG receiving terminals, and chemical plants widely use TP304L and TP316L tubes that comply with the ASTM A312 standard.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19004c6 elementor-widget elementor-widget-text-editor\" data-id=\"19004c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tThe ASTM A312 standard specifies tests for the chemical composition and mechanical properties of the material, while the ASME B36.19M standard defines the nominal wall thickness grades for pipes (5S, 10S, 40S, 80S). As shown in the table below, the ASTM A312 standard strictly specifies wall thickness tolerances of +12.5% \/ -12.5%. Welders rely on this predictable wall thickness to achieve clean root penetration in both track-welding and manual TIG welding.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1167053 elementor-widget elementor-widget-text-editor\" data-id=\"1167053\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<!-- 3. ASTM A312 -->\n<table style=\"border-collapse: collapse; width: 100%; text-align: center; font-size: 13px;\">\n    <thead>\n        <tr bgcolor=\"#A6CAF0\">\n            <th rowspan=\"2\">Dimension<br \/>Standard<\/th>\n            <th colspan=\"2\">Out Diameter<\/th>\n            <th colspan=\"2\">Wall Thickness(%)<\/th>\n            <th colspan=\"2\">Cut Length(mm)<\/th>\n        <\/tr>\n        <tr bgcolor=\"#A6CAF0\">\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td rowspan=\"4\">ASTM A312<\/td>\n            <td>10.29 &le; 48.26<\/td>\n            <td>+0.40\/-0.80<\/td>\n            <td rowspan=\"4\" colspan=\"2\">+12.5\/-12.5<\/td>\n            <td rowspan=\"4\" colspan=\"2\">+6.0\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 48.26 &le; 114.30<\/td>\n            <td>+0.80\/-0.80<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 114.30 &le; 219.08<\/td>\n            <td>+1.60\/-0.80<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 219.08 &le; 457.20<\/td>\n            <td>+2.40\/-0.80<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a1599a5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a1599a5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b70fe8a\" data-id=\"b70fe8a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-62e44b1 elementor-widget elementor-widget-heading\" data-id=\"62e44b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM A789: Duplex Tubing for Corrosive Environments<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c241a5 elementor-widget elementor-widget-text-editor\" data-id=\"1c241a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tThe ASTM A789 standard covers seamless and welded ferritic, austenitic, and <a href=\"https:\/\/www.kaysuns.com\/2205-2507-duplex-pipe-supplier\/\">duplex stainless steel pipes<\/a> intended for use in general corrosive environments, such as warm seawater or high-chloride process brines. Major grades include UNS S31803 (2205 duplex) and UNS S32750 (2507 super duplex).\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff490cd elementor-widget elementor-widget-text-editor\" data-id=\"ff490cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tThese duplex tubes combine a 50% austenite and 50% ferrite microstructure to stop chloride stress corrosion cracking. Desalination evaporators and offshore heat exchangers rely on ASTM A789 tubing for decades of leak-free operation. Its dimensional tolerances mirror ASTM A269 closely, holding wall thickness within plus or minus 10% for tubes over 12.7 mm. Inspect the complete ASTM A789 dimensional tolerance specifications in the table below:\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2d00ae elementor-widget elementor-widget-text-editor\" data-id=\"b2d00ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<!-- 4. ASTM A789 -->\n<table style=\"border-collapse: collapse; width: 100%; text-align: center; font-size: 13px;\">\n    <thead>\n        <tr bgcolor=\"#A6CAF0\">\n            <th rowspan=\"2\">Dimension<br \/>Standard<\/th>\n            <th colspan=\"2\">Out Diameter<\/th>\n            <th colspan=\"2\">Wall Thickness(%)<\/th>\n            <th colspan=\"2\">Cut Length(mm)<\/th>\n        <\/tr>\n        <tr bgcolor=\"#A6CAF0\">\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td rowspan=\"5\">ASTM A789<\/td>\n            <td>D &le; 12.7<\/td>\n            <td rowspan=\"2\">+0.13\/-0.13<\/td>\n            <td>D &le; 12.7<\/td>\n            <td>+15\/-15<\/td>\n            <td rowspan=\"2\">&le; 38.1<\/td>\n            <td rowspan=\"2\">+3.0\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 12.7 &le; 38.1<\/td>\n            <td rowspan=\"4\">&gt; 12.7 &le; 203.2<\/td>\n            <td rowspan=\"4\">+10\/-10<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 38.1 &le; 88.9<\/td>\n            <td>+0.25\/-0.25<\/td>\n            <td rowspan=\"3\">D &gt; 38.1<\/td>\n            <td rowspan=\"3\">+5.0\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 88.9 &le; 139.7<\/td>\n            <td>+0.38\/-0.38<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 139.7 &le; 203.2<\/td>\n            <td>+0.76\/-0.76<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7e4b836 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7e4b836\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3b8320d\" data-id=\"3b8320d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7a5e764 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"7a5e764\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As a professional and reliable manufacturer of stainless steel pipes in China,Kaysuns can not only help you avoid most mistakes when purchasing stainless steel pipes,but we also offer one-stop piping system services to eliminate all purchasing hurdles for you.Feel free to contact us at any time for a free and quick quote.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c8c1461\" data-id=\"c8c1461\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-710f0c8 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"710f0c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Contact Us For More Information\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7eab22a elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"7eab22a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjQ2ODEzIiwidG9nZ2xlIjpmYWxzZX0%3D\" target=\"_blank\" id=\"#241018\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request Quote<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d7c2dd6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d7c2dd6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7b00a05\" data-id=\"7b00a05\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dd2f1fd elementor-widget elementor-widget-heading\" data-id=\"dd2f1fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASTM A790: Duplex ASTM Stainless Steel Pipe Specifications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-abcb6fb elementor-widget elementor-widget-text-editor\" data-id=\"abcb6fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tWhen offshore platforms need heavy process lines rather than small heat-exchanger tubes, engineers turn to ASTM A790. ASTM A790 covers seamless and straight-seam welded ferritic\/austenitic duplex pipes intended for severe corrosive environments. A duplex ASTM stainless steel pipe under A790 delivers twice the mechanical yield strength of standard TP316L.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b5d83a6 elementor-widget elementor-widget-text-editor\" data-id=\"b5d83a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tFor example, UNS S32205 provides a minimum yield strength of 450 MPa compared to 170 MPa for 316L. This high strength allows piping designers to select thinner pipe schedules and reduce topside platform weight significantly. Like A312, an ASTM A790 pipe follows a +12.5% \/ -12.5% wall thickness tolerance across all diameters. Use the table below to verify ASTM A790 outside diameter, wall thickness, and cut length tolerances:\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-23ddd7d elementor-widget elementor-widget-text-editor\" data-id=\"23ddd7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<!-- 5. ASTM A790 -->\n<table style=\"border-collapse: collapse; width: 100%; text-align: center; font-size: 13px;\">\n    <thead>\n        <tr bgcolor=\"#A6CAF0\">\n            <th rowspan=\"2\">Dimension<br \/>Standard<\/th>\n            <th colspan=\"2\">Out Diameter<\/th>\n            <th colspan=\"2\">Wall Thickness(%)<\/th>\n            <th colspan=\"2\">Cut Length(mm)<\/th>\n        <\/tr>\n        <tr bgcolor=\"#A6CAF0\">\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td rowspan=\"4\">ASTM A790<\/td>\n            <td>10.29 &le; 48.26<\/td>\n            <td>+0.40\/-0.80<\/td>\n            <td rowspan=\"4\" colspan=\"2\">+12.5\/-12.5<\/td>\n            <td rowspan=\"4\" colspan=\"2\">+6.0\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 48.26 &le; 114.3<\/td>\n            <td>+0.80\/-0.80<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 114.3 &le; 219.08<\/td>\n            <td>+1.60\/-0.80<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 219.08 &le; 457.20<\/td>\n            <td>+2.40\/-0.80<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ee67253 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ee67253\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-918ea4c\" data-id=\"918ea4c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fd38300 elementor-widget elementor-widget-heading\" data-id=\"fd38300\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASME SB165 to SB677: Cold-Finished Nickel Alloy Tubes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05d00de elementor-widget elementor-widget-text-editor\" data-id=\"05d00de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Extreme chemical processing environments involving hydrofluoric acid, boiling sulfuric acid, or acidic gases exceed the limits of standard stainless steel. In these extreme environments, engineers transition from using standard ASTM stainless steel tubing to high-nickel, high-temperature alloy tubing. The ASME and ASTM B-series specifications cover these specialized cold-rolled, seamless nickel alloy tubes and fittings:<\/p><ul><li>SB165 (UNS N04400): Covers Monel 400 seamless pipes for hydrofluoric acid and marine splash zones.<\/li><li>SB167 (UNS N06600): Covers Inconel 600 seamless tubes for high-temperature furnace and caustic service.<\/li><li>SB423 (UNS N08825): Covers Incoloy 825 seamless pipes for sulfuric and phosphoric acid pipelines.<\/li><li>SB444 (UNS N06625): Covers Inconel 625 seamless pipes for subsea equipment and aerospace exhausts.<\/li><li>SB622 (UNS N10276 \/ N06022): Covers Hastelloy C-276 and C-22 seamless pipes for aggressive chemical reactors.<\/li><li>SB677 (UNS N08904): Covers 904L super-austenitic seamless pipes and tubes for acid production plants.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec07ad7 elementor-widget elementor-widget-text-editor\" data-id=\"ec07ad7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<!-- 6. ASTM SB165, 167, 423, 444, 622, 677 (Cold Finished) -->\n<table style=\"border-collapse: collapse; width: 100%; text-align: center; font-size: 13px;\">\n    <thead>\n        <tr bgcolor=\"#A6CAF0\">\n            <th rowspan=\"2\">Dimension<br \/>Standard<\/th>\n            <th colspan=\"2\">Out Diameter<\/th>\n            <th colspan=\"2\">Wall Thickness(%)<\/th>\n            <th colspan=\"2\">Cut Length(mm)<\/th>\n        <\/tr>\n        <tr bgcolor=\"#A6CAF0\">\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td rowspan=\"7\">\n                ASTM SB165<br \/>\n                ASTM SB167<br \/>\n                ASTM SB423<br \/>\n                ASTM SB444<br \/>\n                ASTM SB622<br \/>\n                ASTM SB677<br \/>\n                (Cold Finished)\n            <\/td>\n            <td>&gt; 10 &le; 16<\/td>\n            <td>+0.13\/-0.13<\/td>\n            <td colspan=\"2\">&plusmn; 15%<\/td>\n            <td rowspan=\"4\">&lt; 50.8<\/td>\n            <td rowspan=\"4\">+3.2\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 16 &le; 38<\/td>\n            <td>+0.19\/-0.19<\/td>\n            <td colspan=\"2\" rowspan=\"2\">&plusmn; 10%<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 38 &le; 76<\/td>\n            <td>+0.25\/-0.25<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 76 &le; 114<\/td>\n            <td>+0.38\/-0.38<\/td>\n            <td colspan=\"2\" rowspan=\"3\">12.5%<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 114 &le; 152<\/td>\n            <td>+0.51\/-0.51<\/td>\n            <td rowspan=\"3\">&ge; 50.8<\/td>\n            <td rowspan=\"3\">+4.8\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 152 &le; 168<\/td>\n            <td>+0.64\/-0.64<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 168 &le; 219<\/td>\n            <td>+0.79\/-0.79<\/td>\n            <td colspan=\"2\">&plusmn; 15%<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-26e054b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"26e054b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6a55869\" data-id=\"6a55869\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ad494a5 elementor-widget elementor-widget-heading\" data-id=\"ad494a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASME SB407: Cold-Finished Nickel-Iron-Chromium Alloy Pipe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15172fb elementor-widget elementor-widget-text-editor\" data-id=\"15172fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tOperating temperatures in petrochemical ethylene cracking units and steam methane reforming units exceed 800\u00b0C (1472\u00b0F). ASME SB407 specifies the use of seamless nickel-iron-chromium alloys, specifically Incoloy 800, 800H, and 800HT. These alloys are capable of withstanding severe carburization, oxidation, and thermal creep fracture during continuous high-temperature operation.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50bedf2 elementor-widget elementor-widget-text-editor\" data-id=\"50bedf2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tCold-worked SB407 tubing has extremely tight outer diameter tolerances, as low as +0.127\/-0.127 mm for small diameters. Please refer to the ASME SB407 specification table below for the exact cold-worked dimensional tolerances:\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e5a6bf elementor-widget elementor-widget-text-editor\" data-id=\"5e5a6bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<!-- 7. ASTM SB407 (Cold Finished) -->\n<table style=\"border-collapse: collapse; width: 100%; text-align: center; font-size: 13px;\">\n    <thead>\n        <tr bgcolor=\"#A6CAF0\">\n            <th rowspan=\"2\">Dimension<br \/>Standard<\/th>\n            <th colspan=\"2\">Out Diameter<\/th>\n            <th colspan=\"2\">Wall Thickness(%)<\/th>\n            <th colspan=\"2\">Cut Length(mm)<\/th>\n        <\/tr>\n        <tr bgcolor=\"#A6CAF0\">\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n            <th>O.D<\/th>\n            <th>Tolerance<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td rowspan=\"6\">ASTM SB407<br \/>(Cold Finished)<\/td>\n            <td>&gt; 12.7 &le; 15.8<\/td>\n            <td>+0.127\/-0.127<\/td>\n            <td colspan=\"2\" rowspan=\"3\">&plusmn; 10%<\/td>\n            <td rowspan=\"6\" colspan=\"2\">+3.2\/0<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 15.8 &le; 38.1<\/td>\n            <td>+0.19\/-0.19<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 38.1 &le; 88.9<\/td>\n            <td>+0.254\/-0.254<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 88.9 &le; 114.3<\/td>\n            <td>+0.381\/-0.381<\/td>\n            <td colspan=\"2\" rowspan=\"3\">12.5%<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 114.3 &le; 152.4<\/td>\n            <td>+0.508\/-0.508<\/td>\n        <\/tr>\n        <tr>\n            <td>&gt; 152.4 &le; 168.3<\/td>\n            <td>+0.635\/-0.635<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f391644 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f391644\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4c0a864\" data-id=\"4c0a864\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3dc0a4f elementor-widget elementor-widget-heading\" data-id=\"3dc0a4f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Quality Assurance for an ASTM Stainless Steel Pipe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d43577c elementor-widget elementor-widget-text-editor\" data-id=\"d43577c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tWithout rigorous factory inspections and on-site physical verification in the production area, specifications on paper are meaningless. As a professional and reliable manufacturer and wholesaler of stainless steel pipes in China, Kaysuns conducts five mandatory quality assurance inspections before each shipment:\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8daab16 e-flex e-con-boxed e-con e-parent\" data-id=\"8daab16\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5c7f757 e-con-full e-flex e-con e-child\" data-id=\"5c7f757\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b4579bc elementor-widget elementor-widget-text-editor\" data-id=\"b4579bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Positive Material Identification (PMI):<br \/>Technicians use handheld X-ray fluorescence analyzers to verify exact alloy percentages on every pipe.<\/li><li>Ultrasonic Wall Measurement:<br \/>Digital ultrasonic gauges scan the pipe body to confirm wall thickness stays within ASTM limits.<\/li><li>Laser Diameter Checks:<br \/>Automated laser micrometers measure outside diameter and ovality across the entire cut length.<\/li><li>Non-Destructive Testing (NDT):<br \/>Eddy current, ultrasonic, and hydrostatic tests eliminate hidden pinholes or longitudinal weld seam defects.<\/li><li>EN 10204 3.1 Mill Test Certificate:<br \/>Every ASTM stainless steel pipe batch ships with traceable heat numbers and certified lab data.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c7cf5db e-con-full e-flex e-con e-child\" data-id=\"c7cf5db\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6daa98 elementor-widget elementor-widget-heading\" data-id=\"a6daa98\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Our Strength<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50223fa elementor-widget elementor-widget-text-editor\" data-id=\"50223fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>We have a full range of austenitic stainless steel, duplex stainless steel, and nickel-based alloys in stock.<\/li><li>Small orders starting at 200 kilograms are available.<\/li><li>Large-bore seamless stainless steel pipe, up to 36&#8221;.<\/li><li>We have the capability to manufacture thin-walled, seamless stainless steel tubes, such as with an OD of 273 \u00d7 WT of 4 mm.<\/li><li>Dual Quality Control System\u2014The first level of quality control is carried out by our certified factories, and the second level is handled by our in-house QA department.<\/li><li>Fast delivery of 20 &#8211; 40 days for general grades.<\/li><li>Flexible and professional service and operations.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-7cc3f87 e-flex e-con-boxed e-con e-parent\" data-id=\"7cc3f87\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e8df921 elementor-widget elementor-widget-heading\" data-id=\"e8df921\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a11ff2d elementor-widget elementor-widget-accordion\" data-id=\"a11ff2d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1681\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1681\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">What is the main difference between ASTM A269 and ASTM A312?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1681\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1681\">ASTM A269 covers general-service tubing measured by exact outside diameter and millimeter wall thickness. ASTM A312 covers pressure piping measured by NPS and ASME schedules.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1682\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1682\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Why does ASTM A213 have a +20% \/ -0% wall thickness tolerance?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1682\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1682\">ASTM A213 tubes operate inside high-pressure boilers and heat exchangers. Zero negative tolerance guarantees the tube wall never falls below the minimum safe engineering thickness.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1683\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1683\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Can I substitute an ASTM A312 pipe with ASTM A790?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1683\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1683\">ASTM A312 covers 300-series austenitic alloys, while ASTM A790 covers duplex stainless steels. Upgrading to A790 increases strength and chloride resistance, but requires updated welding procedures.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1684\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1684\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">How do I verify my ASTM stainless steel pipe meets tolerance standards?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1684\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1684\">Request an EN 10204 3.1 Mill Test Report and a dimensional inspection report before shipment. Always verify outside diameter with calibrated calipers and wall thickness with an ultrasonic gauge upon arrival.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the main difference between ASTM A269 and ASTM A312?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"ASTM A269 covers general-service tubing measured by exact outside diameter and millimeter wall thickness. ASTM A312 covers pressure piping measured by NPS and ASME schedules.\"}},{\"@type\":\"Question\",\"name\":\"Why does ASTM A213 have a +20% \\\/ -0% wall thickness tolerance?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"ASTM A213 tubes operate inside high-pressure boilers and heat exchangers. Zero negative tolerance guarantees the tube wall never falls below the minimum safe engineering thickness.\"}},{\"@type\":\"Question\",\"name\":\"Can I substitute an ASTM A312 pipe with ASTM A790?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"ASTM A312 covers 300-series austenitic alloys, while ASTM A790 covers duplex stainless steels. Upgrading to A790 increases strength and chloride resistance, but requires updated welding procedures.\"}},{\"@type\":\"Question\",\"name\":\"How do I verify my ASTM stainless steel pipe meets tolerance standards?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Request an EN 10204 3.1 Mill Test Report and a dimensional inspection report before shipment. 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