{"id":58969,"date":"2026-04-16T08:18:28","date_gmt":"2026-04-16T08:18:28","guid":{"rendered":"https:\/\/www.kaysuns.com\/?post_type=blog&#038;p=58969"},"modified":"2026-04-16T08:18:30","modified_gmt":"2026-04-16T08:18:30","slug":"321-stainless-steel-flange","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/321-stainless-steel-flange\/","title":{"rendered":"321 Stainless Steel Flange"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"58969\" class=\"elementor elementor-58969\" data-elementor-post-type=\"blog\">\n\t\t\t\t<div class=\"elementor-element elementor-element-686d506 e-flex e-con-boxed e-con e-parent\" data-id=\"686d506\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7c978fc elementor-widget elementor-widget-heading\" data-id=\"7c978fc\" data-element_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\">321 Stainless Steel Flange Supplier: 321, 321H<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2c2863d e-con-full e-flex e-con e-child\" data-id=\"2c2863d\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-81097f8 e-con-full e-flex e-con e-child\" data-id=\"81097f8\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7e76bd9 elementor-widget elementor-widget-text-editor\" data-id=\"7e76bd9\" data-element_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\t321 and 321H stainless steel flanges are primarily used in high-temperature and highly corrosive environments;they are titanium-stabilized austenitic stainless steels.\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-f026721 elementor-widget elementor-widget-text-editor\" data-id=\"f026721\" data-element_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\t321 stainless steel (UNS S32100) is a grade of 304 stainless steel with added titanium. 321H (UNS S32109) is a high-carbon version of 321,specifically designed for applications requiring higher strength.\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-90e64e4 elementor-widget elementor-widget-text-editor\" data-id=\"90e64e4\" data-element_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\tSince 2007, Kaysuns has been supplying custom <a href=\"https:\/\/www.kaysuns.com\/pt\/flanges-de-aco-inoxidavel\/\" target=\"_blank\" rel=\"noopener\">flanges de a\u00e7o inoxid\u00e1vel<\/a> to industries such as oil and gas,chemicals,offshore operations,and marine vessels.Contact us to <a href=\"https:\/\/www.kaysuns.com\/pt\/contato-kaysuns\/\" target=\"_blank\" rel=\"noopener\">get your personalized quote<\/a>.\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-6364d47 e-con-full e-flex e-con e-child\" data-id=\"6364d47\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f742aa2 elementor-widget elementor-widget-image\" data-id=\"f742aa2\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"571\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/04\/321-321H-Stainless-Steel-Flange-Supplier-in-China-scaled-e1776327218447-768x571.webp\" class=\"attachment-medium_large size-medium_large wp-image-59011\" alt=\"321 321H Stainless Steel Flange Supplier in China\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/04\/321-321H-Stainless-Steel-Flange-Supplier-in-China-scaled-e1776327218447-768x571.webp 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/04\/321-321H-Stainless-Steel-Flange-Supplier-in-China-scaled-e1776327218447-300x223.webp 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/04\/321-321H-Stainless-Steel-Flange-Supplier-in-China-scaled-e1776327218447-16x12.webp 16w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/04\/321-321H-Stainless-Steel-Flange-Supplier-in-China-scaled-e1776327218447.webp 1000w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a2cd224 e-flex e-con-boxed e-con e-parent\" data-id=\"a2cd224\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4d45820 elementor-widget elementor-widget-heading\" data-id=\"4d45820\" data-element_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\">321 &amp; 321H Equivalent Designations<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e3d8728 e-con-full e-flex e-con e-child\" data-id=\"e3d8728\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-16200ef e-con-full e-flex e-con e-child\" data-id=\"16200ef\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fc17e05 elementor-widget elementor-widget-heading\" data-id=\"fc17e05\" data-element_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\">A\u00e7o inoxid\u00e1vel 321<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a588727 elementor-widget-tablet__width-initial elementor-widget-mobile__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"a588727\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">UNS S32100<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">EN 1.4541<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">JIS SUS321<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">GOST 08Kh18N10T<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">AFNOR Z6CNT18-10<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\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-693be97 e-con-full e-flex e-con e-child\" data-id=\"693be97\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f8834b2 elementor-widget elementor-widget-heading\" data-id=\"f8834b2\" data-element_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\">321H Stainless Steel<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9590a36 elementor-widget-tablet__width-initial elementor-widget-mobile__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"9590a36\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">UNS S32109<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">EN 1.4878<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">JIS SUS321H<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">GOST 12Kh18N10T<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">AFNOR Z6CNT18-12<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c3645d7 e-flex e-con-boxed e-con e-parent\" data-id=\"c3645d7\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-70de1c8 elementor-widget elementor-widget-heading\" data-id=\"70de1c8\" data-element_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\">Chemical Composition of 321 Stainless Steel Flange (321\/H)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9a9d7b elementor-widget elementor-widget-text-editor\" data-id=\"d9a9d7b\" data-element_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 chemical composition of 321 stainless steel flanges and their high-carbon variant,321H,is primarily governed by the ASTM A182 standard (Forged or Rolled Alloy Steel Flanges).The key difference between the two lies in the control of carbon content and the resulting level of titanium stabilization.\n<table>\n<thead>\n<tr>\n<th bgcolor=\"#00a0e9\">Elemento<\/th>\n<th bgcolor=\"#00a0e9\">C<\/th>\n<th bgcolor=\"#00a0e9\">Cr<\/th>\n<th bgcolor=\"#00a0e9\">Ni<\/th>\n<th bgcolor=\"#00a0e9\">Ti<\/th>\n<th bgcolor=\"#00a0e9\">Mn<\/th>\n<th bgcolor=\"#00a0e9\">Si<\/th>\n<th bgcolor=\"#00a0e9\">P<\/th>\n<th bgcolor=\"#00a0e9\">S<\/th>\n<th bgcolor=\"#00a0e9\">N<\/th>\n<th bgcolor=\"#00a0e9\">Fe<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td bgcolor=\"#05B8E4\">321<\/td>\n<td><b>\u2264 0.08%<\/b><\/td>\n<td>17.0% \u2013 19.0%<\/td>\n<td>9.0% \u2013 12.0%<\/td>\n<td><b>5 \u00d7 (C + N) ~ 0.7<\/b><\/td>\n<td>\u2264 2.0%<\/td>\n<td>\u2264 1.0%<\/td>\n<td>\u2264 0.045%<\/td>\n<td>\u2264 0.030%<\/td>\n<td>\u2264 0.10%<\/td>\n<td>Equil\u00edbrio<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">321H<\/td>\n<td><b>0.04% \u2013 0.10%<\/b><\/td>\n<td>17.0% \u2013 19.0%<\/td>\n<td>9.0% \u2013 12.0%<\/td>\n<td><b>4 \u00d7 (C + N) ~ 0.7<\/b><\/td>\n<td>\u2264 2.0%<\/td>\n<td>\u2264 1.0%<\/td>\n<td>\u2264 0.045%<\/td>\n<td>\u2264 0.030%<\/td>\n<td>\u2264 0.10%<\/td>\n<td>Equil\u00edbrio<\/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<div class=\"elementor-element elementor-element-8368ff1 elementor-widget elementor-widget-heading\" data-id=\"8368ff1\" data-element_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\">The Core Role of Formulation Design<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-494a805 elementor-widget elementor-widget-text-editor\" data-id=\"494a805\" data-element_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>Stabilizing Effect of Titanium:<br \/>Titanium has a much higher affinity for carbon than chromium.Within the sensitization temperature range of 427\u00b0C to 816\u00b0C,titanium preferentially combines with carbon to form titanium carbide,thereby preventing the precipitation of chromium carbide at grain boundaries and avoiding intergranular corrosion caused by \u201cchromium depletion.\u201d<\/li><li>Carbon Content in 321H:<br \/>Although 321 can also be used at high temperatures,321H strictly limits the carbon content to no less than 0.04%.This provides the flange with superior creep resistance and high-temperature structural strength in environments above 537\u00b0C (1000\u00b0F).<\/li><li>Certifica\u00e7\u00e3o dupla:<br \/>In practical engineering applications,the carbon content of many materials falls between 0.04% and 0.08%,so it is common to find flanges that are dual-certified to meet both the 321 and 321H standards.As a provider of stainless steel piping system solutions with a decade of experience,Kaysuns is capable of supplying these products using our state-of-the-art manufacturing equipment.<\/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\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-48df357 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"48df357\" data-element_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-7538e45\" data-id=\"7538e45\" data-element_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-e9250a7 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"e9250a7\" data-element_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\">Tem um requisito?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-630fe84 elementor-widget elementor-widget-heading\" data-id=\"630fe84\" data-element_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-medium\">Kaysuns is a professional supplier of 321 stainless steel flange.Please feel free to contact me if you have any requirements.<\/span>\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-2a38979\" data-id=\"2a38979\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"dce-visibility-event elementor-element elementor-element-0531d58 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"0531d58\" data-element_type=\"widget\" data-settings=\"{&quot;enabled_visibility&quot;:&quot;yes&quot;,&quot;dce_visibility_selected&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<p>Entre em contato conosco para obter mais informa\u00e7\u00f5es\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-3526e37 elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"3526e37\" data-element_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\">Contate-nos<\/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<div class=\"elementor-element elementor-element-655ac09 e-flex e-con-boxed e-con e-parent\" data-id=\"655ac09\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d71fe17 elementor-widget elementor-widget-heading\" data-id=\"d71fe17\" data-element_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\">Mechanical Properties of 321 Stainless Steel Flange Series<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f8ac3b elementor-widget elementor-widget-text-editor\" data-id=\"4f8ac3b\" data-element_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 basic mechanical properties of 321 and 321H stainless steel flanges are very similar at room temperature,but the 321H,with its higher carbon content,offers superior performance in terms of high-temperature creep strength and fracture strength.\n<table>\n<thead>\n<tr>\n<th bgcolor=\"#00a0e9\">Performance Metrics<\/th>\n<th bgcolor=\"#00a0e9\">321<\/th>\n<th bgcolor=\"#00a0e9\">321H<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td bgcolor=\"#05B8E4\">Resist\u00eancia \u00e0 trac\u00e7\u00e3o<\/td>\n<td>\u2265 515 MPa (75 ksi)<\/td>\n<td>\u2265 515 MPa (75 ksi)<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Yield Strength 0.2%<\/td>\n<td>\u2265 205 MPa (30 ksi)<\/td>\n<td>\u2265 205 MPa (30 ksi)<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Elongation in 50mm<\/td>\n<td>\u2265 30% \u2013 40%<\/td>\n<td>\u2265 30% \u2013 40%<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Dureza<\/td>\n<td>\u2264 217 HBW(95 HRB)<\/td>\n<td>\u2264 217 HBW(95 HRB)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nNote:For heavy-duty forged flanges with a thickness exceeding 5 inches (130 mm),the tensile strength requirement may be slightly reduced to 485 MPa (70 ksi).\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-3375a99 elementor-widget elementor-widget-heading\" data-id=\"3375a99\" data-element_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\">Minimum Yield Strength VS Temperature<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e72e967 elementor-widget elementor-widget-text-editor\" data-id=\"e72e967\" data-element_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<table>\n<thead>\n<tr>\n<th bgcolor=\"#00a0e9\">Temperatura (\u00b0C)<\/th>\n<th bgcolor=\"#00a0e9\">Temperature (\u00b0F)<\/th>\n<th bgcolor=\"#00a0e9\">321 (MPa)<\/th>\n<th bgcolor=\"#00a0e9\">321H  (MPa)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td bgcolor=\"#05B8E4\">20<\/td>\n<td>68<\/td>\n<td>205<\/td>\n<td>205<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">100<\/td>\n<td>212<\/td>\n<td>170<\/td>\n<td>170<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">200<\/td>\n<td>392<\/td>\n<td>150<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">300<\/td>\n<td>572<\/td>\n<td>135<\/td>\n<td>135<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">400<\/td>\n<td>752<\/td>\n<td>125<\/td>\n<td>125<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">500<\/td>\n<td>932<\/td>\n<td>118<\/td>\n<td>118<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">600<\/td>\n<td>1112<\/td>\n<td>110<\/td>\n<td><strong>112<\/strong><\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">700<\/td>\n<td>1292<\/td>\n<td>102<\/td>\n<td><strong>105<\/strong><\/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<div class=\"elementor-element elementor-element-80eb67e elementor-widget elementor-widget-heading\" data-id=\"80eb67e\" data-element_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\">Maximum Allowable Stress VS Temperature<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eb5102b elementor-widget elementor-widget-text-editor\" data-id=\"eb5102b\" data-element_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<table>\n<thead>\n<tr>\n<th bgcolor=\"#00a0e9\">Temperatura (\u00b0C)<\/th>\n<th bgcolor=\"#00a0e9\">Temperature (\u00b0F)<\/th>\n<th bgcolor=\"#00a0e9\">321 (MPa)<\/th>\n<th bgcolor=\"#00a0e9\">321H (MPa)\n<\/th><th bgcolor=\"#00a0e9\">Performance Note<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td bgcolor=\"#05B8E4\">40<\/td>\n<td>100<\/td>\n<td>138<\/td>\n<td>138<\/td>\n<td>Equivalent performance<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">150<\/td>\n<td>300<\/td>\n<td>121<\/td>\n<td>121<\/td>\n<td>Standard thermal decline<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">300<\/td>\n<td>572<\/td>\n<td>102<\/td>\n<td>102<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">450<\/td>\n<td>842<\/td>\n<td>94<\/td>\n<td>94<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">550<\/td>\n<td>1022<\/td>\n<td>86<\/td>\n<td><strong>90<\/strong><\/td>\n<td>321H begins to outperform<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">650<\/td>\n<td>1202<\/td>\n<td>45<\/td>\n<td><strong>62<\/strong><\/td>\n<td><strong>Significant Creep Strength gap<\/strong><\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">750<\/td>\n<td>1382<\/td>\n<td>16<\/td>\n<td><strong>24<\/strong><\/td>\n<td>321H is 50% stronger here<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">815<\/td>\n<td>1500<\/td>\n<td>7.5<\/td>\n<td><strong>11<\/strong><\/td>\n<td>Upper limit for pressure parts\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n538\u00b0C (1000\u00b0F) threshold:<br \/>Below this temperature,the strength of 321 and 321H is nearly identical.Above this threshold,creep rupture strength becomes the determining factor,at which point 321H (due to its higher carbon content and coarser grain size) significantly outperforms 321.\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-233f9d3 e-flex e-con-boxed e-con e-parent\" data-id=\"233f9d3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-03a6e78 elementor-widget elementor-widget-heading\" data-id=\"03a6e78\" data-element_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\">Our Key Capabilities in Manufacturing 321\/H SS Flanges<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fc0c25d e-con-full e-flex e-con e-child\" data-id=\"fc0c25d\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a7fa486 e-con-full e-flex e-con e-child\" data-id=\"a7fa486\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-152a46c elementor-widget elementor-widget-heading\" data-id=\"152a46c\" data-element_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\">Precise Chemical &amp; Carbon Control<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f43af50 elementor-widget elementor-widget-text-editor\" data-id=\"f43af50\" data-element_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>We are able to precisely control the carbon content of 321H within the range of 0.04% to 0.10% and strictly adhere to the stabilization ratio of Ti = 5 \u00d7 (C + N) to 0.70.<br \/>This precise control ensures that the flanges possess excellent resistance to sensitization while maintaining outstanding mechanical strength at high temperatures.<\/p>\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-a84fce8 e-con-full e-flex e-con e-child\" data-id=\"a84fce8\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fbd1f18 elementor-widget elementor-widget-heading\" data-id=\"fbd1f18\" data-element_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\">Solution Annealing &amp; Grain Size Control<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-34ed67b elementor-widget elementor-widget-text-editor\" data-id=\"34ed67b\" data-element_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\tWe are equipped with state-of-the-art automated heat treatment furnaces capable of performing precise solution annealing (typically followed by rapid quenching at temperatures between 1040\u00b0C and 1150\u00b0C).For 321H,we ensure that the grain size meets ASTM No. 7 or coarser,thereby satisfying the mandatory requirements of the ASME standard for high-temperature creep strength.\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-f1c9894 e-con-full e-flex e-con e-child\" data-id=\"f1c9894\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-70afc55 e-con-full e-flex e-con e-child\" data-id=\"70afc55\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-efab34e elementor-widget elementor-widget-heading\" data-id=\"efab34e\" data-element_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\">Forging &amp; Sealing Surface Machining<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b27e80 elementor-widget elementor-widget-text-editor\" data-id=\"7b27e80\" data-element_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\tWe utilize high-tonnage forging presses to ensure that the internal structure of the flanges is dense and free of segregation,with grain flow conforming to the external shape.During the machining process,we can machine various complex sealing surfaces (such as RF, RTJ, and Tongue &amp; Groove) and ensure that the surface roughness strictly complies with the ASME B16.5 standard, thereby preventing leaks under high-temperature and high-pressure conditions.\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-d2f5a16 e-con-full e-flex e-con e-child\" data-id=\"d2f5a16\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-919fdd7 elementor-widget elementor-widget-heading\" data-id=\"919fdd7\" data-element_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\">Intergranular Corrosion &amp; NDT Testing<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-362fd0e elementor-widget elementor-widget-text-editor\" data-id=\"362fd0e\" data-element_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\tWe are equipped with a fully-fledged laboratory capable of conducting intergranular corrosion tests in accordance with ASTM A262 Practice E (Strauss Test) to ensure that our products remain immune to corrosion even in sensitized conditions.Additionally,we offer a comprehensive suite of non-destructive testing services (PT,UT,and PMI spectroscopic analysis) to ensure that every 321\/321H flange is free of cracks and material mix-ups before leaving the factory.\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9695950 e-flex e-con-boxed e-con e-parent\" data-id=\"9695950\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c780312 elementor-widget elementor-widget-heading\" data-id=\"c780312\" data-element_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\">Applications of 321 Stainless Steel Flange (321\/H)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-eaf3e3e e-con-full e-flex e-con e-child\" data-id=\"eaf3e3e\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-cb94017 e-con-full e-flex e-con e-child\" data-id=\"cb94017\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a20b55 elementor-widget elementor-widget-heading\" data-id=\"4a20b55\" data-element_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\">321 Stainless Steel Flange<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0127cc elementor-widget-tablet__width-initial elementor-widget-mobile__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"a0127cc\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Aerospace Engine &amp; Exhaust Systems<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Oil Refining &amp; Chemical Processing<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Power Generation &amp; Boilers<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Automotive Exhaust &amp; Turbochargers<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Waste Incineration &amp; Industrial Furnaces<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\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-a221726 e-con-full e-flex e-con e-child\" data-id=\"a221726\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8e5028e elementor-widget elementor-widget-heading\" data-id=\"8e5028e\" data-element_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\">321H Stainless Steel Flange<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f4ae70 elementor-widget-tablet__width-initial elementor-widget-mobile__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"6f4ae70\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Fluid Catalytic Cracking Units<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Supercritical Boilers &amp; Superheaters<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Petrochemical Pyrolysis Furnaces<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Thermal Oxidizers &amp; Heat Recovery<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-square-full\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">High-Temperature Pressure Vessels<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c42a120 e-flex e-con-boxed e-con e-parent\" data-id=\"c42a120\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f703bbd elementor-widget elementor-widget-heading\" data-id=\"f703bbd\" data-element_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 About 321 Stainless Steel Flange Grades<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7265ff elementor-widget elementor-widget-accordion\" data-id=\"e7265ff\" data-element_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-2421\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-2421\" 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 321H require a \u201ccoarse grain structure\u201d?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2421\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-2421\"><p>According to the ASTM A182 standard,the grain size of 321H flanges must be ASTM No. 7 or coarser.This is because,in extremely high-temperature environments,a coarse-grained structure exhibits better creep resistance than a fine-grained structure,thereby preventing slow,permanent deformation of the flange under prolonged exposure to high temperatures and pressures.<\/p><\/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-2422\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-2422\" 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 use 304L instead of 321 for the flanges?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2422\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-2422\"><p>This depends on your operating environment.In ambient or low-temperature conditions,it can be substituted.<br \/>However,if the operating temperature ranges from 427\u00b0C to 816\u00b0C,it cannot be substituted.Although <a href=\"https:\/\/www.kaysuns.com\/pt\/blog\/flange-de-aco-inoxidavel-304\/\" target=\"_blank\" rel=\"noopener\">304L stainless steel flanges<\/a> have a lower carbon content that can slow corrosion,321 provides better titanium stabilization within this temperature range.<\/p><\/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-2423\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-2423\" 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\">321 Does a flange require heat treatment after welding?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2423\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-2423\"><p>This is generally not necessary.<br \/>The titanium content in 321 effectively suppresses the precipitation of chromium carbides in the heat-affected zone during welding.As a result,321 flanges retain excellent corrosion resistance after welding without requiring a time-consuming \u201cpost-weld annealing\u201d process.<\/p><\/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-2424\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-2424\" 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 to order your 321 and 321H stainless steel flanges?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2424\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-2424\"><p>When requesting a quote or placing a purchase order with us,please provide the following information:<br \/>Flange type + RF\/RTJ\/FF + Grade (including pipe SCH for WN and SW flanges) + Size + Material + Standard + Order quantity<\/p><p>For example,if you wish to purchase 100 raised face weld neck flanges for your system,with a pipe size of 8 inches SCH40S,a pressure rating of 300,a material of 321 stainless steel,and a pipe design compliant with ASME standards,the product description would be as follows:<br \/>WNRF flange,8 inches,300 psi,SCH40S,A182 F321,ASME B16.5,100 pieces<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why does 321H require a \\u201ccoarse grain structure\\u201d?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"<p>According to the ASTM A182 standard,the grain size of 321H flanges must be ASTM No. 7 or coarser.This is because,in extremely high-temperature environments,a coarse-grained structure exhibits better creep resistance than a fine-grained structure,thereby preventing slow,permanent deformation of the flange under prolonged exposure to high temperatures and pressures.<\\\/p>\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use 304L instead of 321 for the flanges?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"<p>This depends on your operating environment.In ambient or low-temperature conditions,it can be substituted.<br \\\/>However,if the operating temperature ranges from 427\\u00b0C to 816\\u00b0C,it cannot be substituted.Although <a href=\\\"https:\\\/\\\/www.kaysuns.com\\\/blog\\\/304-stainless-steel-flange\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">304L stainless steel flanges<\\\/a> have a lower carbon content that can slow corrosion,321 provides better titanium stabilization within this temperature range.<\\\/p>\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"321 Does a flange require heat treatment after welding?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"<p>This is generally not necessary.<br \\\/>The titanium content in 321 effectively suppresses the precipitation of chromium carbides in the heat-affected zone during welding.As a result,321 flanges retain excellent corrosion resistance after welding without requiring a time-consuming \\u201cpost-weld annealing\\u201d process.<\\\/p>\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How to order your 321 and 321H stainless steel flanges?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"<p>When requesting a quote or placing a purchase order with us,please provide the following information:<br \\\/>Flange type + RF\\\/RTJ\\\/FF + Grade (including pipe SCH for WN and SW flanges) + Size + Material + Standard + Order quantity<\\\/p><p>For example,if you wish to purchase 100 raised face weld neck flanges for your system,with a pipe size of 8 inches SCH40S,a pressure rating of 300,a material of 321 stainless steel,and a pipe design compliant with ASME standards,the product description would be as follows:<br \\\/>WNRF flange,8 inches,300 psi,SCH40S,A182 F321,ASME B16.5,100 pieces<\\\/p>\"\n            }\n        }\n    ]\n}<\/script>\n\t\t\t\t\t<\/div>\n\t\t\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-7162dcf elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7162dcf\" data-element_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-50 elementor-top-column elementor-element elementor-element-153abfd\" data-id=\"153abfd\" data-element_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-36cf9f2 elementor-widget elementor-widget-heading\" data-id=\"36cf9f2\" data-element_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 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