{"id":7936,"date":"2025-09-16T15:24:11","date_gmt":"2025-09-16T13:24:11","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=7936"},"modified":"2025-09-29T19:42:55","modified_gmt":"2025-09-29T17:42:55","slug":"billes-en-or","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/fr\/produits\/billes-en-metaux-precieux\/billes-en-or\/","title":{"rendered":"Billes en or"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Gold\">Billes en or \u2013 inertes, inalt\u00e9rables, hautement conductrices<\/a><\/h2>\n<p>Les billes en or offrent une r\u00e9sistance \u00e0 la corrosion in\u00e9gal\u00e9e et une fiabilit\u00e9 de contact dans des environnements exigeants. Gr\u00e2ce \u00e0 leur excellente conductivit\u00e9 \u00e9lectrique, \u00e0 leur comportement non magn\u00e9tique et sans \u00e9tincelles, et \u00e0 une surface naturellement inerte qui ne ternit pas, elles sont id\u00e9ales pour les contacts de pr\u00e9cision, le dosage et les syst\u00e8mes de fluides de haute puret\u00e9 o\u00f9 il faut \u00e9viter toute contamination et oxydation.<\/p>\n<h3>\ud83d\udd27 Sp\u00e9cifications techniques cl\u00e9s<\/h3>\n<ul>\n<li><strong>Composition<\/strong> : Au \u226599,9 % (24K) ou alliages d\u2019or durci (p. ex. Au\u2013Ni \/ Au\u2013Co) pour une meilleure r\u00e9sistance \u00e0 l\u2019usure<\/li>\n<li><strong>Structure<\/strong> : m\u00e9tal noble CFC (FCC) ; grain fin pour une haute qualit\u00e9 de surface<\/li>\n<li><strong>Duret\u00e9<\/strong> : ~25\u201335 HV pour l\u2019or pur ; ~60\u2013150 HV pour les alliages d\u2019or durci (selon l\u2019\u00e9tat)<\/li>\n<li><strong>Densit\u00e9<\/strong> : ~19,3 g\/cm\u00b3<\/li>\n<li><strong>\u00c9lectrique<\/strong> : ~70\u201375 % IACS ; r\u00e9sistivit\u00e9 ~2,4\u20132,5 \u00b5\u03a9\u00b7cm<\/li>\n<li><strong>Corrosion<\/strong> : excellente ; r\u00e9sistantes \u00e0 l\u2019oxydation\/sulfuration \u2014 \u00e9viter l\u2019eau r\u00e9gale et certains milieux halog\u00e9nants<\/li>\n<li><strong>Magn\u00e9tique<\/strong> : non magn\u00e9tique ; <strong>sans \u00e9tincelles<\/strong><\/li>\n<li><strong>Point de fusion<\/strong> : ~1064 \u00b0C<\/li>\n<\/ul>\n<h3>\u2705 Avantages<\/h3>\n<ul>\n<li><strong>Inertes &amp; inalt\u00e9rables<\/strong> : r\u00e9sistance de contact stable dans le temps<\/li>\n<li><strong>Fonctionnement propre<\/strong> : surface lisse, faible friction<\/li>\n<li><strong>Biocompatibles<\/strong> : adapt\u00e9es aux instruments sensibles<\/li>\n<li><strong>Non magn\u00e9tiques &amp; sans \u00e9tincelles<\/strong><\/li>\n<\/ul>\n<h3>\ud83d\udd04 Applications des billes en or<\/h3>\n<ul>\n<li><strong>Contacts \u00e9lectriques &amp; appareillage<\/strong> : r\u00e9sistance de contact faible et stable<\/li>\n<li><strong>Soupapes de pr\u00e9cision &amp; dosage<\/strong> : milieux hautement purs et non r\u00e9actifs<\/li>\n<li><strong>Instrumentation &amp; capteurs<\/strong> : \u00e9l\u00e9ments roulants\/d\u2019\u00e9tanch\u00e9it\u00e9 anticorrosion<\/li>\n<li><strong>M\u00e9canismes de luxe\/d\u00e9coratifs<\/strong> : esth\u00e9tique et performance fonctionnelle<\/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 ; dimensions sp\u00e9ciales\/sur mesure sur demande<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Billes en or \u2013 inertes, inalt\u00e9rables, hautement conductrices Les billes en or offrent une r\u00e9sistance \u00e0 la corrosion in\u00e9gal\u00e9e et une fiabilit\u00e9 de contact dans des environnements exigeants. Gr\u00e2ce \u00e0 leur excellente conductivit\u00e9 \u00e9lectrique, \u00e0 leur comportement non magn\u00e9tique et sans \u00e9tincelles, et \u00e0 une surface naturellement inerte qui ne ternit pas, elles sont [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":9192,"parent":7916,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-7936","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 or \u2013 Pr\u00e9cision, conductivit\u00e9 et r\u00e9sistance \u00e0 la corrosion<\/title>\n<meta name=\"description\" content=\"Billes en or : conductrices, r\u00e9sistantes \u00e0 la corrosion et durables, id\u00e9ales pour contacts \u00e9lectriques, capteurs et usages techniques\" \/>\n<meta name=\"robots\" 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