{"id":7956,"date":"2025-09-16T15:26:48","date_gmt":"2025-09-16T13:26:48","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=7956"},"modified":"2025-09-29T19:55:20","modified_gmt":"2025-09-29T17:55:20","slug":"billes-en-alliage-platine-iridium","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/fr\/produits\/billes-en-metaux-precieux\/billes-en-alliage-platine-iridium\/","title":{"rendered":"Billes en alliage platine\u2013iridium"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Platinum%E2%80%93iridium_alloy\">Billes en alliage platine\u2013iridium \u2013 ultra-stables, inertes, de pr\u00e9cision<\/a><\/h2>\n<p>Les Billes en alliage platine\u2013iridium (Pt\u2013Ir) allient une inertie chimique exceptionnelle \u00e0 une densit\u00e9 tr\u00e8s \u00e9lev\u00e9e et \u00e0 une remarquable stabilit\u00e9 dimensionnelle. L\u2019ajout d\u2019iridium durcit le platine pour une r\u00e9sistance \u00e0 l\u2019usure sup\u00e9rieure tout en conservant un comportement non magn\u00e9tique et inalt\u00e9rable\u2014id\u00e9al pour les contacts de pr\u00e9cision, le dosage et les syst\u00e8mes de fluides de haute puret\u00e9 dans des environnements exigeants.<\/p>\n<h3>\ud83d\udd27 Sp\u00e9cifications techniques cl\u00e9s<\/h3>\n<ul>\n<li><strong>Composition<\/strong> : Pt avec Ir (typ. 90\/10 \u00e0 80\/20)<\/li>\n<li><strong>Structure<\/strong> : solution solide d\u2019un m\u00e9tal noble CFC (FCC)<\/li>\n<li><strong>Duret\u00e9<\/strong> : ~180\u2013250 HV (selon grade\/\u00e9tat)<\/li>\n<li><strong>Densit\u00e9<\/strong> : ~21,3\u201321,7 g\/cm\u00b3<\/li>\n<li><strong>Domaine de fusion<\/strong> : ~1800\u20131900 \u00b0C (selon l\u2019alliage)<\/li>\n<li><strong>\u00c9lectrique<\/strong> : bonne conductivit\u00e9 ; <strong>Magn\u00e9tique<\/strong> : non magn\u00e9tique<\/li>\n<li><strong>Corrosion<\/strong> : excellente dans la plupart des acides, chlorures et atmosph\u00e8res \u00e0 haute temp\u00e9rature<\/li>\n<\/ul>\n<h3>\u2705 Avantages<\/h3>\n<ul>\n<li><strong>Inertie chimique extr\u00eame<\/strong> &amp; surface inalt\u00e9rable<\/li>\n<li><strong>Haute densit\u00e9<\/strong> pour une \u00e9tanch\u00e9it\u00e9 positive et un mouvement stable<\/li>\n<li><strong>R\u00e9sistance \u00e0 l\u2019usure accrue<\/strong> vs. platine pur<\/li>\n<li><strong>Stabilit\u00e9 thermique<\/strong> sur une large plage de temp\u00e9ratures<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Applications des billes en alliage platine\u2013iridium<\/h3>\n<ul>\n<li><strong>Vannes de pr\u00e9cision &amp; dosage<\/strong> pour milieux de haute puret\u00e9\/agressifs<\/li>\n<li><strong>Contacts \u00e9lectriques &amp; capteurs<\/strong> avec bruit faible et stable<\/li>\n<li><strong>Dispositifs m\u00e9dicaux &amp; de laboratoire<\/strong><\/li>\n<li><strong>M\u00e9trologie &amp; instrumentation<\/strong> n\u00e9cessitant une stabilit\u00e9 \u00e0 long terme<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Grades &amp; dimensions disponibles<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Grades<\/strong> : ISO 3290, DIN 5401, AFBMA (tol\u00e9rances \u00e9quivalentes)<\/a><\/li>\n<li><strong>Plage de diam\u00e8tres<\/strong> : dimensions imp\u00e9riales et m\u00e9triques standard ; tailles sp\u00e9ciales\/sur mesure sur demande<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Billes en alliage platine\u2013iridium \u2013 ultra-stables, inertes, de pr\u00e9cision Les Billes en alliage platine\u2013iridium (Pt\u2013Ir) allient une inertie chimique exceptionnelle \u00e0 une densit\u00e9 tr\u00e8s \u00e9lev\u00e9e et \u00e0 une remarquable stabilit\u00e9 dimensionnelle. L\u2019ajout d\u2019iridium durcit le platine pour une r\u00e9sistance \u00e0 l\u2019usure sup\u00e9rieure tout en conservant un comportement non magn\u00e9tique et inalt\u00e9rable\u2014id\u00e9al pour les contacts [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":9204,"parent":7916,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7956","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Billes en alliage platine\u2013iridium \u2013 Pr\u00e9cision et durabilit\u00e9<\/title>\n<meta name=\"description\" content=\"Billes en alliage platine\u2013iridium, stables, anticorrosion et ultra-pr\u00e9cises, id\u00e9ales pour instruments, balances et usages scientifiques.\" \/>\n<meta name=\"robots\" content=\"index, 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