{"id":4125,"date":"2026-08-18T05:00:06","date_gmt":"2026-08-17T21:00:06","guid":{"rendered":"https:\/\/dzxmetals.com\/product\/expansion-alloy-manufacturer\/"},"modified":"2026-08-18T05:00:06","modified_gmt":"2026-08-17T21:00:06","slug":"expansion-alloy-manufacturer","status":"publish","type":"product","link":"https:\/\/dzxmetals.com\/fr\/product\/expansion-alloy-manufacturer\/","title":{"rendered":"Fabricant d&#039;alliages d&#039;expansion"},"content":{"rendered":"<style>\n.dzx-category-content{max-width:1280px;margin:0 auto;padding:0 0 38px;color:#344256;font-size:16px;line-height:1.75;box-sizing:border-box}\n.dzx-category-content *{box-sizing:border-box}.dzx-category-content p{margin:0 0 1rem}.dzx-category-content a{color:#1266b1}.dzx-category-content .dzx-category-intro{margin:0 0 30px;padding:28px 0 25px;border-bottom:1px solid #dce5ef}.dzx-category-content .dzx-category-intro h2{margin:0 0 12px;color:#173b5b;font-size:32px;line-height:1.2}.dzx-category-content 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.dzx-products,.dzx-category-content .dzx-form-grid,.dzx-category-content ul.discitem4{grid-template-columns:repeat(4,minmax(0,1fr))}}\n@media(max-width:800px){.dzx-category-content{font-size:15px}.dzx-category-content .dzx-products,.dzx-category-content .dzx-form-grid,.dzx-category-content ul.discitem4{grid-template-columns:repeat(3,minmax(0,1fr))}.dzx-category-content ul.discitem1{grid-template-columns:1fr}.dzx-category-content .dzx-category-intro h2{font-size:28px}}\n@media(max-width:560px){.dzx-category-content .dzx-products,.dzx-category-content .dzx-form-grid,.dzx-category-content ul.discitem4{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.dzx-category-content .dzx-product-card{min-height:96px;padding:13px 12px}.dzx-category-content .dzx-form-grid>li,.dzx-category-content ul.discitem4>li{min-height:0;padding:14px 11px}.dzx-category-content table{font-size:13px}.dzx-category-content td,.dzx-category-content th{padding:8px 9px}}\n@media(max-width:380px){.dzx-category-content .dzx-products,.dzx-category-content .dzx-form-grid,.dzx-category-content ul.discitem4{grid-template-columns:1fr}}\n.dzx-category-content .dzx-form-grid>li>img,.dzx-category-content ul.discitem4>li>img{display:block;flex:0 0 64px;width:64px;height:64px;margin:0 auto 11px;object-fit:contain;border-radius:4px;background:#F7FAFC}.dzx-category-content .dzx-form-grid>li>img+strong,.dzx-category-content ul.discitem4>li>img+strong{margin-top:0}@media(max-width:560px){.dzx-category-content .dzx-form-grid>li>img,.dzx-category-content ul.discitem4>li>img{flex-basis:54px;width:54px;height:54px;margin-bottom:9px}}<\/style>\n<div class=\"dzx-category-content\">\n<section class=\"dzx-category-intro\">\n<p class=\"dzx-category-kicker\">CAT\u00c9GORIE DE PRODUITS M\u00c9TALLIQUES DZX<\/p>\n<h2>alliage d&#039;expansion<\/h2>\n<p>Les alliages \u00e0 dilatation thermique contr\u00f4l\u00e9e sont des mat\u00e9riaux sp\u00e9ciaux con\u00e7us pour pr\u00e9senter des propri\u00e9t\u00e9s de dilatation thermique ma\u00eetrisables. Ils sont largement utilis\u00e9s dans les applications o\u00f9 la dilatation thermique doit correspondre ou rester stable par rapport \u00e0 d&#039;autres mat\u00e9riaux, tels que le verre, la c\u00e9ramique ou certains composants industriels, ou encore lorsqu&#039;une dilatation sp\u00e9cifique doit \u00eatre respect\u00e9e dans une plage de temp\u00e9ratures donn\u00e9e.<\/p>\n<\/section>\n<h2 class=\"dzx-section-title\">Qualit\u00e9s et produits disponibles<\/h2>\n<div class=\"dzx-products\"><a class=\"dzx-product-card\" href=\"\/fr\/product\/4j29-kovar-expansion-alloy\/\"><strong>4J29 Kovar<\/strong><span>Voir les d\u00e9tails du produit<\/span><\/a><a class=\"dzx-product-card\" href=\"\/fr\/product\/4j36-invar-expansion-alloy\/\"><strong>4J36 Invar<\/strong><span>Voir les d\u00e9tails du produit<\/span><\/a><\/div>\n<ul class=\"dzx-form-grid\">\n<li><img loading=\"lazy\" decoding=\"async\" class=\"dzx-form-card-icon\" src=\"https:\/\/www.dzx-metal.com\/images\/prohub_icon04.webp\" alt=\"Assiette \/ Feuille\" width=\"64\" height=\"64\">\n<p>                    <strong>Assiette \/ Feuille<\/strong><\/p>\n<dl>\n<dd>\u00c9paisseur : 0,1 mm \u00e0 50 mm <\/dd>\n<dd>Largeur : 50 mm \u00e0 1000 mm <\/dd>\n<dd>Longueur : 1000 mm \u00e0 6000 mm <\/dd>\n<\/dl>\n<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"dzx-form-card-icon\" src=\"https:\/\/www.dzx-metal.com\/images\/prohub_icon03.webp\" alt=\"Bande \/ Bobine\" width=\"64\" height=\"64\">\n<p>                    <strong>Bande<\/strong><\/p>\n<dl>\n<dd>\u00c9paisseur : 0,02 mm \u00e0 1 mm <\/dd>\n<dd> Largeur : 3 mm \u00e0 500 mm <\/dd>\n<dd> Formes de livraison\u00a0: Surface brillante ou anodis\u00e9e, fournie en bobines ou coup\u00e9e \u00e0 la longueur. <\/dd>\n<\/dl>\n<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"dzx-form-card-icon\" src=\"https:\/\/www.dzx-metal.com\/images\/prohub_icon05.webp\" alt=\"Barre \/ Tige\" width=\"64\" height=\"64\">\n<p>                    <strong>Tige<\/strong><\/p>\n<dl>\n<dd>Diam\u00e8tre : \u00d83 mm \u00e0 \u00d8100 mm <\/dd>\n<dd> Longueur : 100 mm \u00e0 2000 mm <\/dd>\n<dd> Formes de livraison\u00a0: Lamin\u00e9es \u00e0 chaud, forg\u00e9es ou tourn\u00e9es<\/dd>\n<\/dl>\n<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"dzx-form-card-icon\" src=\"https:\/\/www.dzx-metal.com\/images\/prohub_icon01.webp\" alt=\"Fil\" width=\"64\" height=\"64\">\n<p>                    <strong>Fil<\/strong><\/p>\n<dl>\n<dd>Diam\u00e8tre : \u00d80,03 mm \u00e0 \u00d86 mm <\/dd>\n<dd> Formes de livraison\u00a0: Brillant ou anodis\u00e9, fourni en bobines <\/dd>\n<\/dl>\n<\/li>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"dzx-form-card-icon\" src=\"https:\/\/www.dzx-metal.com\/images\/prohub_icon02.webp\" alt=\"Tube \/ Tuyau\" width=\"64\" height=\"64\">\n<p>                    <strong>Tube<\/strong><\/p>\n<dl>\n<dd>Diam\u00e8tre ext\u00e9rieur : \u00d83 mm \u00e0 \u00d8200 mm <\/dd>\n<dd> \u00c9paisseur de paroi : 0,5 mm \u00e0 10 mm <\/dd>\n<dd>Longueur : 100 mm \u00e0 6000 mm <\/dd>\n<\/dl>\n<\/li>\n<\/ul>\n<h2 class=\"dzx-section-title\">Composition chimique<\/h2>\n<div class=\"table-responsive\">\n<table class=\"table table-striped ke-zeroborder\">\n<tr class=\"top\">\n<td> \u00c9l\u00e9ments <\/td>\n<td><\/td>\n<td> 4J29 <\/td>\n<td> 4J36 <\/td>\n<\/tr>\n<tr>\n<td> Carbone (C) <\/td>\n<td rowspan=\"3\"> Pas sup\u00e9rieur \u00e0 <\/td>\n<td> 0.03 <\/td>\n<td> 0.05 <\/td>\n<\/tr>\n<tr>\n<td> Soufre (S) <\/td>\n<td> 0.02 <\/td>\n<td> 0.02 <\/td>\n<\/tr>\n<tr>\n<td> Phosphore (P) <\/td>\n<td> 0.02 <\/td>\n<td> 0.02 <\/td>\n<\/tr>\n<tr>\n<td> Mangan\u00e8se (Mn) <\/td>\n<td><\/td>\n<td> \u22640,50 <\/td>\n<td> 0.20-0.60 <\/td>\n<\/tr>\n<tr>\n<td> Silicium (Si) <\/td>\n<td><\/td>\n<td> \u22640,30 <\/td>\n<td> \u22640,30 <\/td>\n<\/tr>\n<tr>\n<td> Nickel (Ni) <\/td>\n<td><\/td>\n<td> 28.5-29.5 <\/td>\n<td> 35.0-37.0 <\/td>\n<\/tr>\n<tr>\n<td> Chrome (Cr) <\/td>\n<td><\/td>\n<td> \u2013 <\/td>\n<td> \u2013 <\/td>\n<\/tr>\n<tr>\n<td> Cobalt (Co) <\/td>\n<td><\/td>\n<td> 16.8-17.8 <\/td>\n<td> \u2013 <\/td>\n<\/tr>\n<tr>\n<td> Fer (Fe) <\/td>\n<td><\/td>\n<td> Repos <\/td>\n<td> Repos <\/td>\n<\/tr>\n<tr>\n<td> Autres \u00e9l\u00e9ments <\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<\/table>\n<\/div>\n<h2 class=\"dzx-section-title\">Propri\u00e9t\u00e9s de dilatation thermique<\/h2>\n<div class=\"table-responsive\">\n<table class=\"table table-striped ke-zeroborder\">\n<tr class=\"top\">\n<td> Grade d&#039;alliage <\/td>\n<td> 20\u00b0C-100\u00b0C <\/td>\n<td> 20\u00b0C-300\u00b0C <\/td>\n<td> 20\u00b0C-500\u00b0C <\/td>\n<\/tr>\n<tr>\n<td> Alliage Invar 4J36 <\/td>\n<td> 1,2 \u00d7 10\u207b\u2076 \/\u00b0C <\/td>\n<td> 2,5 \u00d7 10\u207b\u2076 \/\u00b0C <\/td>\n<td> \u2013 <\/td>\n<\/tr>\n<tr>\n<td> Alliage Kovar 4J29 <\/td>\n<td> 4,6\u00d710\u207b\u2076 \/\u00b0C <\/td>\n<td> 5,5 \u00d7 10\u207b\u2076 \/\u00b0C <\/td>\n<td> 6,2\u00d710\u207b\u2076 \/\u00b0C <\/td>\n<\/tr>\n<\/table>\n<\/div>\n<h2 class=\"dzx-section-title\">Propri\u00e9t\u00e9s m\u00e9caniques<\/h2>\n<div class=\"table-responsive\">\n<table class=\"table table-striped ke-zeroborder\">\n<tr class=\"top\">\n<td> Grade d&#039;alliage <\/td>\n<td> Alliage Invar 4J36 <\/td>\n<td> Alliage Kovar 4J29 <\/td>\n<\/tr>\n<tr>\n<td> Densit\u00e9 (g\/cm\u00b3) <\/td>\n<td> 8.1 <\/td>\n<td> 8.2 <\/td>\n<\/tr>\n<tr>\n<td> R\u00e9sistance \u00e0 la traction (MPa) <\/td>\n<td> 500-600 <\/td>\n<td> 600-700 <\/td>\n<\/tr>\n<tr>\n<td> Limite d&#039;\u00e9lasticit\u00e9 (MPa) <\/td>\n<td> 250-350 <\/td>\n<td> 300-400 <\/td>\n<\/tr>\n<tr>\n<td> Duret\u00e9 (HV) <\/td>\n<td> 150-200 <\/td>\n<td> 200-250 <\/td>\n<\/tr>\n<\/table>\n<\/div>\n<h2 class=\"dzx-section-title\">Propri\u00e9t\u00e9s \u00e9lectriques<\/h2>\n<div class=\"table-responsive\">\n<table class=\"table table-striped ke-zeroborder\">\n<tr class=\"top\">\n<td> Grade d&#039;alliage <\/td>\n<td> Alliage Invar 4J36 <\/td>\n<td> Alliage Kovar 4J29 <\/td>\n<\/tr>\n<tr>\n<td> R\u00e9sistivit\u00e9 \u00e9lectrique (10\u207b\u2076 \u03a9\u00b7cm) <\/td>\n<td> 80 <\/td>\n<td> 50 <\/td>\n<\/tr>\n<tr>\n<td> Conductivit\u00e9 thermique (W\/m\u00b7K) <\/td>\n<td> 10-12 <\/td>\n<td> 16-18 <\/td>\n<\/tr>\n<\/table>\n<\/div>\n<h2 class=\"dzx-section-title\">Caract\u00e9ristiques<\/h2>\n<ul class=\"discitem1\">\n<li>Certains alliages \u00e0 dilatation variable, comme les alliages Invar, ne se dilatent pratiquement pas du tout avec les variations de temp\u00e9rature, tandis que d&#039;autres types peuvent \u00eatre con\u00e7us pour avoir un taux de dilatation sp\u00e9cifique. <\/li>\n<li>Ces alliages conservent leur forme et leur taille, m\u00eame dans des environnements pr\u00e9sentant d&#039;importantes fluctuations de temp\u00e9rature. <\/li>\n<li>Ils offrent g\u00e9n\u00e9ralement une r\u00e9sistance et une robustesse suffisantes, ce qui les rend adapt\u00e9s aux composants structurels complexes. <\/li>\n<li>Ils se pr\u00eatent facilement au travail \u00e0 froid et \u00e0 chaud, au soudage et \u00e0 d&#039;autres techniques de formage. <\/li>\n<li>De nombreux alliages d&#039;expansion pr\u00e9sentent \u00e9galement une excellente r\u00e9sistance \u00e0 la corrosion. <\/li>\n<\/ul>\n<h2 class=\"dzx-section-title\">Applications<\/h2>\n<ul class=\"item1\">\n<li><strong>Instruments de pr\u00e9cision et appareils de mesure<\/strong>: tels que les balances, les microscopes et les interf\u00e9rom\u00e8tres laser <\/li>\n<li><strong>\u00c9lectronique et semi-conducteurs<\/strong>: cartes de circuits int\u00e9gr\u00e9s, connecteurs, r\u00e9sistances, etc. <\/li>\n<li><strong>A\u00e9rospatial<\/strong>: syst\u00e8mes de navigation, syst\u00e8mes de contr\u00f4le sur les a\u00e9ronefs et les satellites <\/li>\n<li><strong>industrie automobile<\/strong>: capteurs de moteur, composants du syst\u00e8me d&#039;\u00e9chappement <\/li>\n<li><strong>Industrie \u00e9nerg\u00e9tique<\/strong>: \u00e9quipements sensibles dans les centrales nucl\u00e9aires et les centrales thermiques, tels que les tableaux de bord et les contr\u00f4leurs <\/li>\n<li><strong>Horlogerie<\/strong>: des composants de pr\u00e9cision tels que les engrenages et les ressorts de barillet dans les montres haut de gamme <\/li>\n<li><strong>industrie de l&#039;\u00e9clairage<\/strong>: supports et connecteurs m\u00e9talliques dans les ampoules et les luminaires LED <\/li>\n<\/ul>\n<div class=\"dzx-category-cta\"><a href=\"#contactpopupform\">Demander un devis<\/a><\/div>\n<\/div>","protected":false},"featured_media":2778,"parent":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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