{"id":61741,"date":"2026-07-08T06:34:50","date_gmt":"2026-07-08T06:34:50","guid":{"rendered":"https:\/\/www.kaysuns.com\/?post_type=blog&#038;p=61741"},"modified":"2026-07-08T06:34:52","modified_gmt":"2026-07-08T06:34:52","slug":"the-difference-between-1-4539-904l-uranus-b6","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/ru\/blog\/the-difference-between-1-4539-904l-uranus-b6\/","title":{"rendered":"What is &#8220;URANUS B6&#8221;? What is The Difference Between 1.4539 &amp; 904L?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"61741\" class=\"elementor elementor-61741\" data-elementor-post-type=\"blog\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43235cd e-flex e-con-boxed e-con e-parent\" data-id=\"43235cd\" 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-3f49060 elementor-widget elementor-widget-text-editor\" data-id=\"3f49060\" 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\tSome customers ask about the exact <strong>difference between 1.4539 &amp; 904L<\/strong> when designing modern pipelines.You must understand these global material standards to purchase industrial piping correctly.Buyers frequently encounter terms like URANUS B6 on older factory blueprints.This guide clarifies these confusing metallurgical designations completely.We will explain these highly alloyed austenitic stainless steel clearly.\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-f01fcb6 e-flex e-con-boxed e-con e-parent\" data-id=\"f01fcb6\" 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-d2d1755 elementor-widget elementor-widget-heading\" data-id=\"d2d1755\" 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\">What Exactly Is URANUS B6?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9da2abb elementor-widget elementor-widget-text-editor\" data-id=\"9da2abb\" 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>URANUS B6 represents an old proprietary metallurgical trade name.A French metal corporation created this specific brand name decades ago.Today,the global steel industry simply calls this material 904L.It is a super austenitic stainless steel.It contains massive amounts of premium nickel and molybdenum.Engineers deliberately add copper to this alloy to resist severe sulfuric acid.This specific alloy features a PREN above 34.This high PREN value guarantees extreme durability in harsh chemical environments.You rarely see the name URANUS B6 on modern material test certificates today.<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1fe6fb4 e-flex e-con-boxed e-con e-parent\" data-id=\"1fe6fb4\" 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-e0a07c9 elementor-widget elementor-widget-heading\" data-id=\"e0a07c9\" 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\">What Actually Is The Difference Between 1.4539 &amp; 904L?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b109f84 elementor-widget elementor-widget-text-editor\" data-id=\"b109f84\" 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>Let us clarify the primary difference between 1.4539 &amp; 904L immediately.Absolutely no chemical or physical difference exists between these two materials.They represent the exact same high-performance metal alloy.The only distinction comes from global industrial naming systems.The ASTM uses the name 904L.The European EN standard system uses the number 1.4539.<a href=\"\/\" target=\"_blank\" rel=\"noopener\">Chinese pipe manufacturers<\/a> supply this exact same material globally under both names.<\/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-e2bae4a elementor-widget elementor-widget-heading\" data-id=\"e2bae4a\" 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\">Global Material Naming Systems<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b5b5a30 elementor-widget elementor-widget-text-editor\" data-id=\"b5b5a30\" 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<table>\n<tbody>\n<tr bgcolor=\"#00a0e9\">\n<th>Regional Standard System<\/th>\n<th>Metal Designation<\/th>\n<th>Country Or Region Of Origin<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">ASTM \/ UNS<\/td>\n<td>904L \/ N08904<\/td>\n<td>United States<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">EN \/ DIN<\/td>\n<td>1.4539 \/ X1NiCrMoCu25-20-5<\/td>\n<td>European Union<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Trade Name<\/td>\n<td>URANUS B6<\/td>\n<td>France (Historical)<\/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\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-671ca2d elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"671ca2d\" 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-0459468\" data-id=\"0459468\" 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-24816ef elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"24816ef\" 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\">What We Do<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e07cd97 elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"e07cd97\" 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-8742dbe elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"8742dbe\" 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-a237a1f\" data-id=\"a237a1f\" 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-67a9c8e elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"67a9c8e\" 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-b0d00e2 elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"b0d00e2\" 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<div class=\"elementor-element elementor-element-da8fa54 e-flex e-con-boxed e-con e-parent\" data-id=\"da8fa54\" 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-2b4084d elementor-widget elementor-widget-menu-anchor\" data-id=\"2b4084d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"chemicalcomposition\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f705b0 elementor-widget elementor-widget-heading\" data-id=\"7f705b0\" 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\">Chemical Composition Difference Between 1.4539 &amp; 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24b466f elementor-widget elementor-widget-text-editor\" data-id=\"24b466f\" 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>Before placing an order,buyers often wonder what the difference is between the chemical compositions of 1.4539 and 904L steel.In fact,the core chemical elements of these two steels are essentially the same,with no significant differences.The addition of copper gives this alloy exceptional properties:it effectively prevents strong acids from corroding the metal pipe walls,while the extremely low carbon content completely eliminates the risk of weld corrosion.<\/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-8058e04 elementor-widget elementor-widget-text-editor\" data-id=\"8058e04\" 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<table>\n<thead>\n<tr>\n<th bgcolor=\"#00a0e9\">Element<\/th>\n<th bgcolor=\"#00a0e9\">EN 10222-5 1.4539 (%)<\/th>\n<th bgcolor=\"#00a0e9\">ASTM SA182 F904L (%)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td bgcolor=\"#05B8E4\">Carbon (C)<\/td>\n<td>\u2264 0.020<\/td>\n<td>\u2264 0.020<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Manganese (Mn)<\/td>\n<td>\u2264 2.00<\/td>\n<td>\u2264 2.00<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Phosphorus (P)<\/td>\n<td>\u2264 0.030<\/td>\n<td>\u2264 0.045<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Sulfur (S)<\/td>\n<td>\u2264 0.010<\/td>\n<td>\u2264 0.035<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Silicon (Si)<\/td>\n<td>\u2264 0.70<\/td>\n<td>\u2264 1.00<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Chromium (Cr)<\/td>\n<td>19.00 &#8211; 21.00<\/td>\n<td>19.00 &#8211; 23.00<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Nickel (Ni)<\/td>\n<td>24.00 &#8211; 26.00<\/td>\n<td>23.00 &#8211; 28.00<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Molybdenum (Mo)<\/td>\n<td>4.00 &#8211; 5.00<\/td>\n<td>4.00 &#8211; 5.00<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Copper (Cu)<\/td>\n<td>1.20 &#8211; 2.00<\/td>\n<td>1.00 &#8211; 2.00<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Nitrogen (N)<\/td>\n<td>\u2264 0.15<\/td>\n<td>\u2264 0.10<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bcbf070 e-flex e-con-boxed e-con e-parent\" data-id=\"bcbf070\" 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-213fab5 elementor-widget elementor-widget-menu-anchor\" data-id=\"213fab5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"mechanicalproperties\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4de16db elementor-widget elementor-widget-heading\" data-id=\"4de16db\" 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\">Mechanical Properties Difference Between 1.4539 &amp; 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0afbe35 elementor-widget elementor-widget-text-editor\" data-id=\"0afbe35\" 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>1.4539 and 904L also show virtually no difference in their physical properties;the test results merely confirm their equivalence.The tensile strength must be maintained at 490 MPa or higher at all times.These rigorous tests ensure that your <a href=\"https:\/\/www.kaysuns.com\/stainless-steel-pipes\/\" target=\"_blank\" rel=\"noopener\">stainless steel pipes<\/a> comply with global standards.<\/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-178e338 elementor-widget elementor-widget-text-editor\" data-id=\"178e338\" 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<table>\n<thead>\n<tr>\n<th bgcolor=\"#00a0e9\">Property<\/th>\n<th bgcolor=\"#00a0e9\">EN 10222-5 1.4539<\/th>\n<th bgcolor=\"#00a0e9\">ASTM SA182 F904L<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td bgcolor=\"#05B8E4\">Tensile Strength<\/td>\n<td>520 &#8211; 720 MPa<\/td>\n<td>\u2265490\u00a0 MPa<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Yield Strength (0.2%)<\/td>\n<td>\u2265 220 MPa<\/td>\n<td>\u2265 215 MPa<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Elongation<\/td>\n<td>\u2265 35%<\/td>\n<td>\u2265 35%<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-446e8b6 e-flex e-con-boxed e-con e-parent\" data-id=\"446e8b6\" 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-5137a65 elementor-widget elementor-widget-image\" data-id=\"5137a65\" data-element_type=\"widget\" data-e-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=\"2560\" height=\"863\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-scaled.webp\" class=\"attachment-full size-full wp-image-61786\" alt=\"KAYSUNS SMLS PIPE ASTM A312 AISI 904L 21.3 x 2.77 x 6000MM HEAT NO ZJGF2506-527\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-scaled.webp 2560w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-300x101.webp 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-1024x345.webp 1024w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-768x259.webp 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-1536x518.webp 1536w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-2048x691.webp 2048w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2026\/07\/KAYSUNS-SMLS-PIPE-ASTM-A312-AISI-904L-21.3-x-2.77-x-6000MM-HEAT-NO-ZJGF2506-527-18x6.webp 18w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-662af73 e-flex e-con-boxed e-con e-parent\" data-id=\"662af73\" 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-e02a8c4 elementor-widget elementor-widget-heading\" data-id=\"e02a8c4\" 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\">Global Sourcing And The Difference Between 1.4539 &amp; 904L In Purchasing<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e60ac72 elementor-widget elementor-widget-text-editor\" data-id=\"e60ac72\" 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>Understanding the difference between 1.4539 &amp; 904L helps your purchasing department significantly.Many international buyers source high-quality stainless steel pipelines from global manufacturers.Kaysuns is a professional manufacturer of stainless steel pipes,<a href=\"https:\/\/www.kaysuns.com\/stainless-steel-pipe-fittings\/\" target=\"_blank\" rel=\"noopener\">pipe fittings<\/a>,and <a href=\"https:\/\/www.kaysuns.com\/stainless-steel-flange\/\" target=\"_blank\" rel=\"noopener\">SS flanges<\/a> in China.Based on more than a decade of experience in manufacturing and import\/export trade,we believe that if European customers specify 1.4539 stainless steel pipe,we can confidently supply <a href=\"https:\/\/www.kaysuns.com\/blog\/904l-stainless-steel-pipe\/\" target=\"_blank\" rel=\"noopener\">904L stainless steel pipe<\/a> with the customer\u2019s approval.All that is required is a dual-certification material test certificate.A dual-certification document lists both international standards.This simple administrative step can prevent significant delays at customs and in engineering projects.<\/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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4cc42d1 e-flex e-con-boxed e-con e-parent\" data-id=\"4cc42d1\" 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-91a153b elementor-widget elementor-widget-heading\" data-id=\"91a153b\" 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\">Applications of 1.4539 &amp; 904L Stainless Steel Pipe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bf8cd0b e-con-full e-flex e-con e-child\" data-id=\"bf8cd0b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-775e3d0 e-con-full e-flex e-con e-child\" data-id=\"775e3d0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d171efa 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=\"d171efa\" data-element_type=\"widget\" data-e-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\">Oil and Gas 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\">Pharmaceutical Industry<\/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\">Sulfuric Acid Production &amp; Storage<\/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\">Flue Gas Desulfurization Scrubbers<\/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\">Desalination and Seawater Cooling Systems<\/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-098ab5d e-con-full e-flex e-con e-child\" data-id=\"098ab5d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b3b91dc 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=\"b3b91dc\" data-element_type=\"widget\" data-e-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\">Organic Acid Treatment<\/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\">Metallurgical Pickling Lines<\/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\">Pulp and Paper Manufacturing<\/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\">Electrostatic Precipitator Wiring<\/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\">Acetic and Phosphoric Acid Production<\/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-cd58d99 e-flex e-con-boxed e-con e-parent\" data-id=\"cd58d99\" 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-edcb75d elementor-widget elementor-widget-heading\" data-id=\"edcb75d\" 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 About 1.4539 And 904L Stainless Steel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-865b24e elementor-widget elementor-widget-accordion\" data-id=\"865b24e\" 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-1401\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1401\" 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 weld 1.4539 pipes to 904L pipes safely?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1401\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1401\"><p>Yes,they can be welded together perfectly.When their chemical compositions are exactly the same,the welded joint is very strong.<\/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-1402\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1402\" 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 are these materials more expensive than standard 316L?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1402\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1402\"><p>These alloys contain large amounts of expensive nickel and molybdenum.These high-value chemical elements significantly increase the production costs of the raw materials.<\/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-1403\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1403\" 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 them for warm seawater pipelines?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1403\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1403\"><p>Absolutely.These special alloys are highly resistant to corrosion in warm seawater.They provide nearly complete protection against dangerous chloride pitting corrosion.<\/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-1404\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1404\" 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 are the differences between the regulatory standards for 1.4539 and 904L?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1404\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1404\">Although they are interchangeable in 99% of engineering applications,there are some subtle differences between them and the text of regulatory standards regarding <a href=\"#chemicalcomposition\">composition limits<\/a> and minimum <a href=\"#mechanicalproperties\">mechanical property<\/a> requirements.\n<table>\n<thead>\n<tr>\n<th bgcolor=\"#00a0e9\">Metric<\/th>\n<th bgcolor=\"#00a0e9\">EN 1.4539 Standard Limits<\/th>\n<th bgcolor=\"#00a0e9\">ASTM \/ UNS 904L Standard Limits<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td bgcolor=\"#05B8E4\">Minimum Nickel<\/td>\n<td>Slightly higher minimum requirement (~1% more).<\/td>\n<td>Broader,slightly more flexible range allowable.<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Phosphorus &#038; Sulfur<\/td>\n<td>Stricter,lower maximum impurities allowed.<\/td>\n<td>Allows marginally higher maximum limits.<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Tensile Strength<\/td>\n<td>Mandates a slightly higher minimum tensile baseline.<\/td>\n<td>Slightly lower baseline minimum allowed.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nMost modern steel mills dual-certify their material as both 1.4539 and 904L by targeting a chemical makeup that satisfies the tightest constraints of both standards simultaneously.If you have a need for such stainless steel products,we are able to supply them and provide dual certification.Please feel free to <a href=\"https:\/\/www.kaysuns.com\/contact-kaysuns\/\" target=\"_blank\">contact us<\/a> for a free,quick quote.<\/div>\n\t\t\t\t<\/div>\n\t\t\t\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-7ec1a6f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" 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