{"id":2582,"date":"2026-04-14T16:50:02","date_gmt":"2026-04-14T08:50:02","guid":{"rendered":"https:\/\/jblstainless.com\/?p=2582"},"modified":"2026-04-20T15:45:26","modified_gmt":"2026-04-20T07:45:26","slug":"quel-acier-inoxydable-nest-pas-magnetique","status":"publish","type":"post","link":"https:\/\/jblstainless.com\/fr\/which-stainless-steel-is-not-magnetic\/","title":{"rendered":"Quel acier inoxydable n'est pas magn\u00e9tique ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2582\" class=\"elementor elementor-2582\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5bcd097 e-flex e-con-boxed e-con e-parent\" data-id=\"5bcd097\" 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-2b556e1 elementor-widget elementor-widget-text-editor\" data-id=\"2b556e1\" 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>When testing a piece of stainless steel with a magnet, it sticks. While testing another piece, it doesn&#8217;t. Both are labeled &#8220;stainless steel.&#8221;<\/p><p>So which one is actually non-magnetic? Does it matter for the project?<\/p><p>In medical equipment, MRI-adjacent components, sensors, food processing, and precision instruments \u2014 using the wrong grade can cause equipment malfunction, regulatory failure, or outright product rejection.<\/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-71e6513 elementor-widget elementor-widget-text-editor\" data-id=\"71e6513\" 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>In short, austenitic stainless steels \u2014 primarily grades 304, 316, 321, 310, and 904L, are non-magnetic in their annealed state. Ferritic and martensitic grades (409, 430, 410) are magnetic.<\/p><p>However, the changes after cold working will surprise most buyers.<\/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-3af6baa e-flex e-con-boxed e-con e-parent\" data-id=\"3af6baa\" 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-b700ef1 elementor-widget elementor-widget-heading\" data-id=\"b700ef1\" 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 Some Stainless Steels Are Magnetic and Others Aren't\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-59a51ec elementor-widget elementor-widget-text-editor\" data-id=\"59a51ec\" 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>Magnetism in steel is determined by its &#8220;crystal microstructure&#8221;, not simply its composition.<\/p><p>Stainless steel can be classified into five structural families:<\/p><table class=\"table\"><tbody><tr><td>Family<\/td><td>Magnetic<\/td><td>Common Grades<\/td><\/tr><tr><td>Austenitic<\/td><td>Non-magnetic (annealed)<\/td><td>304, 316, 321, 310, 347, 904L<\/td><\/tr><tr><td>Ferritic<\/td><td>Magnetic<\/td><td>409, 430, 439<\/td><\/tr><tr><td>Martensitic<\/td><td>Magnetic<\/td><td>410, 420, 440C<\/td><\/tr><tr><td>Duplex<\/td><td>Weakly magnetic<\/td><td>2205, 2507<\/td><\/tr><tr><td>Precipitation-Hardened<\/td><td>Slightly magnetic<\/td><td>17-4 PH<\/td><\/tr><\/tbody><\/table><p>The key is the &#8220;austenite phase&#8221;: a face-centered cubic (FCC) lattice structure that does not align with magnetic fields. Austenite is stabilized by nickel, which is why 300-series stainless steels (with 8\u201312% Ni) are the preferred non-magnetic choice.<\/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-b35fa60 e-flex e-con-boxed e-con e-parent\" data-id=\"b35fa60\" 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-eaaadca elementor-widget elementor-widget-heading\" data-id=\"eaaadca\" 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\">Which Stainless Steel is not Magnetic?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2075bdd elementor-widget elementor-widget-text-editor\" data-id=\"2075bdd\" 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><strong>Grade 304 &#8211; The Most Common Non-Magnetic Stainless Steel<\/strong><\/p><ul><li>Composition: 18% Cr, 8% Ni<\/li><li>Permeability (\u00b5r): 1.02\u20131.08 (effectively non-magnetic)<\/li><li>Suit for: General fabrication, kitchenware, architectural components, chemical containers<\/li><\/ul><p>Cold working (bending, drawing, rolling) can transform some austenite to martensite, introducing slight magnetism. Annealed 304 is reliably non-magnetic.<\/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-5914c46 elementor-widget elementor-widget-text-editor\" data-id=\"5914c46\" 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><strong>Grade 316 &#8211; Best Non-Magnetic Grade for Corrosive Environments<\/strong><\/p><ul><li>Composition: 16% Cr, 10% Ni, 2% Mo<\/li><li>Permeability (\u00b5r): 1.02\u20131.05 (more stable than 304 under cold work)<\/li><li>Suit for: Marine, pharmaceutical, food processing, chemical piping<\/li><\/ul><p><br \/><strong>Why it&#8217;s preferred for EMI-sensitive applications:<\/strong> The added molybdenum and higher nickel content make the austenite more stable, reducing risk of magnetism after fabrication.<\/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-33c91b4 elementor-widget elementor-widget-text-editor\" data-id=\"33c91b4\" 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><strong>Grade 321 &#8211; Non-Magnetic with High-Temperature Stability<\/strong><\/p><ul><li>Composition: 18% Cr, 9% Ni, stabilized with Titanium<\/li><li>Suit for: High-temperature exhaust systems, heat exchangers, aerospace components<\/li><li>Magnetic: Non-magnetic and stable up to 800\u2013900\u00b0C<\/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-461d21b elementor-widget elementor-widget-text-editor\" data-id=\"461d21b\" 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><strong>Grade 310\/310S &#8211; Non-Magnetic at Extreme Temperatures<\/strong><\/p><ul><li>Composition: 25% Cr, 20% Ni<\/li><li>Suit for: Furnaces, kilns, heat treatment equipment<\/li><li>Very high nickel content ensures robust austenite stability \u2014 remains non-magnetic even after heavy forming.<\/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-85ff142 elementor-widget elementor-widget-text-editor\" data-id=\"85ff142\" 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><strong>Grade 904L &#8211; Premium Non-Magnetic Austenitic Steel<\/strong><\/p><ul><li>Composition: 20% Cr, 25% Ni, 4.5% Mo, Cu<\/li><li>Suit for: Sulfuric acid environments, offshore, luxury watchmaking<\/li><\/ul><p>Near-zero magnetic permeability even after cold work; used in luxury timepieces for its non-magnetic and corrosion-resistant properties.<\/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-dc802ce elementor-widget elementor-widget-heading\" data-id=\"dc802ce\" 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\">Other Austenitic Grades That Are Non-Magnetic\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6705fb5 elementor-widget elementor-widget-text-editor\" data-id=\"6705fb5\" 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><strong>Grade 347<\/strong><\/li><\/ul><p>Niobium-stabilized; non-magnetic, good for welded structures;<\/p><ul><li><strong>Grade 253MA<\/strong><\/li><\/ul><p>High-temperature, rare earth additions; non-magnetic<\/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-3c0e292 e-flex e-con-boxed e-con e-parent\" data-id=\"3c0e292\" 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-8c14e96 elementor-widget elementor-widget-heading\" data-id=\"8c14e96\" 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\">The Cold-Working: When Non-Magnetic Becomes Magnetic\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-04dc1c3 elementor-widget elementor-widget-text-editor\" data-id=\"04dc1c3\" 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><a href=\"https:\/\/jblstainless.com\/fr\/can-316-stainless-steel-rust\/\">304 stainless steel<\/a> that has been cold-worked (pipe bending, swaging, deep drawing) can become measurably magnetic. This is because cold deformation converts austenite to martensite &#8211; a magnetic phase.<\/p>\n<p><strong>How to detect:<\/strong> Use a Feritscope or magnetic permeability gauge (not just a handheld magnet \u2014 too imprecise).<\/p>\n<p><strong>How to fix:<\/strong> Solution annealing (heating to 1050\u20131120\u00b0C and rapid quenching) restores the austenite phase and non-magnetic properties.<\/p>\n<p>Note please: For critical non-magnetic applications, always specify: &#8220;solution annealed and water quenched&#8221; in order.&nbsp;<\/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-9626551 e-flex e-con-boxed e-con e-parent\" data-id=\"9626551\" 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-75d34c3 elementor-widget elementor-widget-heading\" data-id=\"75d34c3\" 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\">Magnetic vs Non-Magnetic Stainless Steels\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc173e3 elementor-widget elementor-widget-text-editor\" data-id=\"cc173e3\" 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 class=\"table\"><tbody><tr><td>Grade<\/td><td>Magnetic<\/td><td>Typical \u00b5r<\/td><td>Common Use<\/td><\/tr><tr><td>304<\/td><td>Non-magnetic (annealed)<\/td><td>1.02\u20131.08<\/td><td>General use<\/td><\/tr><tr><td>304 (cold-worked)<\/td><td>Slightly magnetic<\/td><td>Up to 1.5+<\/td><td>Depends on forming<\/td><\/tr><tr><td>316<\/td><td>Non-magnetic<\/td><td>1.02\u20131.05<\/td><td>Marine\/chemical<\/td><\/tr><tr><td>321<\/td><td>Non-magnetic<\/td><td>-1.02<\/td><td>High temp<\/td><\/tr><tr><td>310<\/td><td>Non-magnetic<\/td><td>-1.01<\/td><td>Extreme heat<\/td><\/tr><tr><td>904L<\/td><td>Non-magnetic<\/td><td>-1.001<\/td><td>Premium\/precision<\/td><\/tr><tr><td>430<\/td><td>Magnetic<\/td><td>400\u2013600<\/td><td>Automotive trim<\/td><\/tr><tr><td>410<\/td><td>Magnetic<\/td><td>700\u20131200<\/td><td>Cutlery, shafts<\/td><\/tr><tr><td>409<\/td><td>Magnetic<\/td><td>200\u2013400<\/td><td>Exhaust systems<\/td><\/tr><tr><td>2205 (Duplex)<\/td><td>Weakly magnetic<\/td><td>5\u201310<\/td><td>High-strength piping<\/td><\/tr><\/tbody><\/table><p>\u00a0<\/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-c8edbf4 e-flex e-con-boxed e-con e-parent\" data-id=\"c8edbf4\" 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-9300ebe elementor-widget elementor-widget-heading\" data-id=\"9300ebe\" 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\">Which Non-Magnetic Grade Is Right for Your Application?\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1aa3e5e elementor-widget elementor-widget-text-editor\" data-id=\"1aa3e5e\" 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><strong>If you need non-magnetic stainless steel pipe or tube:<\/strong><\/p><p>Choose 316L seamless tube (annealed) for most industrial uses; 304L for budget-sensitive projects.<\/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-acb4c21 elementor-widget elementor-widget-text-editor\" data-id=\"acb4c21\" 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><strong>For MRI rooms and medical imaging environments:<\/strong><\/p><p>Use 316L or 304L, solution-annealed, with verified \u00b5r &lt; 1.005. Require mill test certificates (MTC) and third-party permeability testing.<\/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-30a6396 elementor-widget elementor-widget-text-editor\" data-id=\"30a6396\" 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><strong>For offshore and subsea piping:<\/strong><\/p><p>316L or 904L \u2014 both non-magnetic and highly resistant to chloride 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-8b178e3 elementor-widget elementor-widget-text-editor\" data-id=\"8b178e3\" 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><strong>For food and beverage processing:<\/strong><\/p><p>304 or 316 \u2014 both meet food contact standards and are reliably non-magnetic.<\/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-3b6d30d elementor-widget elementor-widget-text-editor\" data-id=\"3b6d30d\" 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><strong>For precision instruments or sensors:<\/strong><\/p><p>Choose 316L or 904L, cold-drawn and annealed. Avoid 304 if the part undergoes any cold forming.<\/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-f0eb14f elementor-widget elementor-widget-text-editor\" data-id=\"f0eb14f\" 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><strong>For high-temperature furnace components:<\/strong><\/p><p>310S or 321 \u2014 austenite stable under thermal cycling.<\/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-1fe13e1 e-flex e-con-boxed e-con e-parent\" data-id=\"1fe13e1\" 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-0e1e3ac elementor-widget elementor-widget-text-editor\" data-id=\"0e1e3ac\" 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>We supply austenitic stainless steel pipe and tube in grades 304, 304L, 316, 316L, 321, 310S, and 904L \u2014 all produced in solution-annealed condition with full mill test certificates.<\/p><ul><li>Material traceability from melt to delivery (EN 10204 3.1 \/ 3.2 MTCs)<\/li><li>Magnetic permeability testing available on request<\/li><li>Seamless and welded options, OD range 6mm\u20131200mm<\/li><li>Export experience to 40+ countries<\/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<div class=\"elementor-element elementor-element-fcdbf43 e-flex e-con-boxed e-con e-parent\" data-id=\"fcdbf43\" 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-082b284 elementor-widget elementor-widget-heading\" data-id=\"082b284\" 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<p class=\"elementor-heading-title elementor-size-default\">FAQ<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a759554 elementor-widget elementor-widget-n-accordion\" data-id=\"a759554\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;default_state&quot;:&quot;expanded&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1750\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1750\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Is <a href=\"https:\/\/jblstainless.com\/fr\/can-316-stainless-steel-rust\/\">304 stainless steel<\/a> magnetic? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1750\" class=\"elementor-element elementor-element-0b1ade3 e-con-full e-flex e-con e-child\" data-id=\"0b1ade3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-03321fe elementor-widget elementor-widget-text-editor\" data-id=\"03321fe\" 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>Grade <a href=\"https:\/\/jblstainless.com\/fr\/can-316-stainless-steel-rust\/\">304 stainless steel<\/a> is non-magnetic in its annealed state. However, cold working (bending, drawing, stamping) can induce a slight magnetic response by converting austenite to martensite. For applications requiring guaranteed non-magnetic properties, specify solution-annealed 304 or upgrade to 316L.<\/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\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1751\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1751\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Is <a href=\"https:\/\/jblstainless.com\/fr\/can-316-stainless-steel-rust\/\">316 stainless steel<\/a> magnetic?  <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1751\" class=\"elementor-element elementor-element-c24cbd2 e-con-full e-flex e-con e-child\" data-id=\"c24cbd2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-53ca08c elementor-widget elementor-widget-text-editor\" data-id=\"53ca08c\" 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>No. Grade 316 is an austenitic stainless steel and is non-magnetic in its annealed state. It is more resistant to induced magnetism from cold work than 304 due to its higher nickel and molybdenum content.<\/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\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1752\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1752\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How can I tell if stainless steel is magnetic?  <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1752\" class=\"elementor-element elementor-element-6c63279 e-con-full e-flex e-con e-child\" data-id=\"6c63279\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ff7f815 elementor-widget elementor-widget-text-editor\" data-id=\"ff7f815\" 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>A simple magnet test can detect strong magnetism (ferritic\/martensitic grades). For precise measurement, use a Feritscope or permeability meter. Non-magnetic austenitic grades should have \u00b5r &lt; 1.01.<\/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\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is 304 stainless steel magnetic?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Grade 304 stainless steel is non-magnetic in its annealed state. However, cold working (bending, drawing, stamping) can induce a slight magnetic response by converting austenite to martensite. For applications requiring guaranteed non-magnetic properties, specify solution-annealed 304 or upgrade to 316L.\"}},{\"@type\":\"Question\",\"name\":\"Is 316 stainless steel magnetic?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Grade 316 is an austenitic stainless steel and is non-magnetic in its annealed state. It is more resistant to induced magnetism from cold work than 304 due to its higher nickel and molybdenum content.\"}},{\"@type\":\"Question\",\"name\":\"How can I tell if stainless steel is magnetic?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A simple magnet test can detect strong magnetism (ferritic\\\/martensitic grades). For precise measurement, use a Feritscope or permeability meter. Non-magnetic austenitic grades should have \\u00b5r &lt; 1.01.\"}}]}<\/script>\n\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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Les aciers inoxydables 304, 316, 321, 310 et 904L ne sont pas magn\u00e9tiques \u00e0 l'\u00e9tat recuit. Les nuances ferritiques et martensitiques (409, 430, 410) sont magn\u00e9tiques.<\/p>","protected":false},"author":1,"featured_media":2596,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-2582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/posts\/2582","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/comments?post=2582"}],"version-history":[{"count":11,"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/posts\/2582\/revisions"}],"predecessor-version":[{"id":2598,"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/posts\/2582\/revisions\/2598"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/media\/2596"}],"wp:attachment":[{"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/media?parent=2582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/categories?post=2582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jblstainless.com\/fr\/wp-json\/wp\/v2\/tags?post=2582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}