{"id":2007,"date":"2021-01-20T15:23:38","date_gmt":"2021-01-20T14:23:38","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=2007"},"modified":"2025-09-29T19:32:06","modified_gmt":"2025-09-29T17:32:06","slug":"billes-en-rockbit-s2","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/fr\/produits\/billes-en-metaux-non-ferreux-et-alliages\/billes-en-rockbit-s2\/","title":{"rendered":"Billes en RockBit S2"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Tool_steel\">Billes en acier \u00e0 outils S2 RockBit \u2013 \u00e9l\u00e9ments de roulement r\u00e9sistants aux chocs pour le forage<\/a><\/h2>\n<p>Les billes en acier \u00e0 outils S2 RockBit sont con\u00e7ues en acier \u00e0 outils r\u00e9sistant aux chocs pour supporter des contraintes de contact extr\u00eames, des impacts et l\u2019abrasion dans les environnements de forage. Revenues \u00e0 haute duret\u00e9 tout en conservant la t\u00e9nacit\u00e9, elles r\u00e9sistent \u00e0 l\u2019\u00e9caillage (spalling) et au matage (brinelling) en service charg\u00e9 de boue\u2014id\u00e9ales pour tr\u00e9pans tric\u00f4nes, outils de fond de puits et m\u00e9canismes percussifs lourds.<\/p>\n<h3>\ud83d\udd27 Sp\u00e9cifications techniques cl\u00e9s<\/h3>\n<ul>\n<li><strong>Composition<\/strong> : acier \u00e0 outils S2 r\u00e9sistant aux chocs (typ.) : C 0,45\u20130,55 %, Si 0,20\u20131,00 %, Mn 0,20\u20131,00 %, Cr 0,15\u20130,80 %, Mo 0,30\u20130,80 % (\u00e9quilibre Fe)<\/li>\n<li><strong>Structure<\/strong> : martensite revenue avec carbures finement dispers\u00e9s<\/li>\n<li><strong>Duret\u00e9<\/strong> : Rockwell C 58\u201364 (traitement thermique)<\/li>\n<li><strong>R\u00e9sistance \u00e0 la traction<\/strong> : jusqu\u2019\u00e0 \u2248 2 100 MPa (selon condition)<\/li>\n<li><strong>Densit\u00e9<\/strong> : ~7,80 g\/cm\u00b3<\/li>\n<li><strong>Corrosion<\/strong> : limit\u00e9e ; utiliser lubrification\/rev\u00eatements<\/li>\n<li><strong>Magn\u00e9tique<\/strong> : enti\u00e8rement magn\u00e9tique<\/li>\n<\/ul>\n<h3>\u2705 Avantages<\/h3>\n<ul>\n<li><strong>Haute t\u00e9nacit\u00e9 aux chocs<\/strong> : r\u00e9siste aux impacts et aux vibrations<\/li>\n<li><strong>Anti-spalling\/anti-brinelling<\/strong> sous charges hertziennes extr\u00eames<\/li>\n<li><strong>R\u00e9sistance \u00e0 l\u2019abrasion<\/strong> dans la boue de forage et les particules<\/li>\n<li><strong>Stabilit\u00e9 dimensionnelle<\/strong> apr\u00e8s traitement thermique<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Applications des billes S2 RockBit<\/h3>\n<ul>\n<li><strong>Roulements de tr\u00e9pans tric\u00f4nes<\/strong><\/li>\n<li><strong>Outils de fond &amp; m\u00e9canismes percussifs<\/strong><\/li>\n<li><strong>Roulements industriels lourds<\/strong> en milieux abrasifs<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Qualit\u00e9s &amp; dimensions disponibles<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Qualit\u00e9s<\/strong> : ISO 3290, DIN 5401, AFBMA (tol\u00e9rances \u00e9quivalentes)<\/a><\/li>\n<li><strong>Plage de diam\u00e8tres<\/strong> : tailles imp\u00e9riales et m\u00e9triques standard ; formats hors standard\/sur mesure sur demande<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Billes en acier \u00e0 outils S2 RockBit \u2013 \u00e9l\u00e9ments de roulement r\u00e9sistants aux chocs pour le forage Les billes en acier \u00e0 outils S2 RockBit sont con\u00e7ues en acier \u00e0 outils r\u00e9sistant aux chocs pour supporter des contraintes de contact extr\u00eames, des impacts et l\u2019abrasion dans les environnements de forage. Revenues \u00e0 haute duret\u00e9 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8760,"parent":1991,"menu_order":8,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2007","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 RockBit S2 \u2013 Acier tremp\u00e9, duret\u00e9 et fiabilit\u00e9<\/title>\n<meta name=\"description\" content=\"Billes en RockBit S2 : acier tremp\u00e9 tr\u00e8s dur, r\u00e9sistantes \u00e0 l\u2019usure et aux chocs, id\u00e9ales pour roulements, forets et usages industriels.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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