{"id":2969,"date":"2021-01-21T09:11:55","date_gmt":"2021-01-21T08:11:55","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=2969"},"modified":"2025-09-29T10:28:24","modified_gmt":"2025-09-29T08:28:24","slug":"esferas-de-bronze","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/pt-pt\/produtos\/esferas-de-latao-e-de-bronze\/esferas-de-bronze\/","title":{"rendered":"Esferas de Bronze"},"content":{"rendered":"<p><!-- PT (usar \"Esferas\") --><\/p>\n<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Bronze\">Esferas de bronze-alum\u00ednio \u2013 resist\u00eancia n\u00edvel marinho, ao desgaste &amp; \u00e0 corros\u00e3o<\/a><\/h2>\n<p>As Esferas de bronze-alum\u00ednio proporcionam resist\u00eancia excepcional, alta resist\u00eancia ao grippagem (galling) e desempenho not\u00e1vel em \u00e1gua do mar\/cavita\u00e7\u00e3o. Com cobre refor\u00e7ado por Al e Fe\/Ni, oferecem opera\u00e7\u00e3o n\u00e3o faiscante, n\u00e3o magn\u00e9tica e rolamento suave de baixo atrito\u2014ideais para v\u00e1lvulas, bombas e instrumenta\u00e7\u00e3o exigentes em servi\u00e7os mar\u00edtimos e qu\u00edmicos.<\/p>\n<h3>\ud83d\udd27 Especifica\u00e7\u00f5es t\u00e9cnicas principais<\/h3>\n<ul>\n<li><strong>Composi\u00e7\u00e3o<\/strong>: Cu balan\u00e7o; Al 8\u201311% (t\u00edp.), Fe 2\u20135%, Ni \u22645% (dependente do grau)<\/li>\n<li><strong>Estrutura<\/strong>: bronze-alum\u00ednio \u03b1\/\u03ba, precipitados finos para resist\u00eancia<\/li>\n<li><strong>Dureza<\/strong>: ~80\u2013100 HRB (dependente da condi\u00e7\u00e3o)<\/li>\n<li><strong>Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/strong>: \u2248 600\u2013850 MPa<\/li>\n<li><strong>Densidade<\/strong>: ~7.6\u20137.8 g\/cm\u00b3<\/li>\n<li><strong>El\u00e9trico<\/strong>: ~7\u201315% IACS; <strong>Magn\u00e9tico<\/strong>: n\u00e3o magn\u00e9ticas<\/li>\n<li><strong>Corros\u00e3o<\/strong>: excelente em \u00e1gua do mar, cloretos e muitos qu\u00edmicos; alta resist\u00eancia \u00e0 cavita\u00e7\u00e3o<\/li>\n<\/ul>\n<h2>\ud83d\udee0\ufe0f Esferas de bronze-f\u00f3sforo \u2013 resistentes \u00e0 fadiga, baixo atrito, \u00e0 prova de corros\u00e3o<\/h2>\n<p>As Esferas de bronze-f\u00f3sforo (bronze-estanho com P) oferecem excelente resist\u00eancia \u00e0 fadiga, baixo atrito e confi\u00e1vel resist\u00eancia \u00e0 corros\u00e3o em \u00e1gua, combust\u00edveis e diversos qu\u00edmicos. N\u00e3o faiscantes e n\u00e3o magn\u00e9ticas, mant\u00eam acabamento liso e est\u00e1vel para rolagem\/veda\u00e7\u00e3o de precis\u00e3o em sistemas industriais e de instrumenta\u00e7\u00e3o exigentes.<\/p>\n<h3>\ud83d\udd27 Especifica\u00e7\u00f5es t\u00e9cnicas principais<\/h3>\n<ul>\n<li><strong>Composi\u00e7\u00e3o<\/strong>: Cu balan\u00e7o; Sn 4\u201310% (t\u00edp. 6\u20138%), P 0.01\u20130.35% (desoxidante\/refor\u00e7o)<\/li>\n<li><strong>Estrutura<\/strong>: matriz de bronze \u03b1 com finas fases de endurecimento<\/li>\n<li><strong>Dureza<\/strong>: ~85\u2013100 HRB<\/li>\n<li><strong>Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/strong>: \u2248 500\u2013750 MPa<\/li>\n<li><strong>Densidade<\/strong>: ~8.8\u20138.9 g\/cm\u00b3<\/li>\n<li><strong>El\u00e9trico<\/strong>: ~12\u201318% IACS; <strong>Magn\u00e9tico<\/strong>: n\u00e3o magn\u00e9ticas<\/li>\n<li><strong>Corros\u00e3o<\/strong>: muito boa em \u00e1gua doce, combust\u00edveis e qu\u00edmicos brandos; boa resist\u00eancia ao desgaste\/grippagem<\/li>\n<\/ul>\n<h3>\u2705 Vantagens<\/h3>\n<ul>\n<li><strong>Alta resist\u00eancia \u00e0 fadiga &amp; ao desgaste<\/strong><\/li>\n<li><strong>Baixo atrito, opera\u00e7\u00e3o silenciosa<\/strong><\/li>\n<li><strong>N\u00e3o faiscantes &amp; n\u00e3o magn\u00e9ticas<\/strong><\/li>\n<li><strong>Estabilidade dimensional<\/strong> para mecanismos de precis\u00e3o<\/li>\n<li><strong>Alta resist\u00eancia &amp; desempenho ao desgaste<\/strong><\/li>\n<li><strong>Desempenho em \u00e1gua do mar\/cavita\u00e7\u00e3o<\/strong><\/li>\n<li><strong>N\u00e3o faiscantes &amp; n\u00e3o magn\u00e9ticas<\/strong><\/li>\n<li><strong>Acabamento superficial liso e est\u00e1vel<\/strong><\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplica\u00e7\u00f5es das Esferas de bronze<\/h3>\n<ul>\n<li><strong>V\u00e1lvulas, medidores &amp; bombas<\/strong>: sedes\/Esferas de reten\u00e7\u00e3o<\/li>\n<li><strong>Instrumenta\u00e7\u00e3o<\/strong>: movimento limpo em fluidos\/gases<\/li>\n<li><strong>Conjuntos mec\u00e2nicos gerais<\/strong> que exigem resist\u00eancia \u00e0 corros\u00e3o<\/li>\n<li><strong>V\u00e1lvulas &amp; bombas mar\u00edtimas<\/strong>: sedes, Esferas de reten\u00e7\u00e3o\/dosagem<\/li>\n<li><strong>Equipamentos offshore &amp; qu\u00edmicos<\/strong><\/li>\n<li><strong>Instrumenta\u00e7\u00e3o<\/strong> em meios com cloretos<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Graus &amp; tamanhos dispon\u00edveis<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Normas<\/strong>: ISO 3290, DIN 5401, AFBMA (toler\u00e2ncias equivalentes)<\/a><\/li>\n<li><strong>Faixa de di\u00e2metros<\/strong>: tamanhos imperiais e m\u00e9tricos padr\u00e3o; n\u00e3o padr\u00e3o\/sob medida sob solicita\u00e7\u00e3o<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Esferas de bronze-alum\u00ednio \u2013 resist\u00eancia n\u00edvel marinho, ao desgaste &amp; \u00e0 corros\u00e3o As Esferas de bronze-alum\u00ednio proporcionam resist\u00eancia excepcional, alta resist\u00eancia ao grippagem (galling) e desempenho not\u00e1vel em \u00e1gua do mar\/cavita\u00e7\u00e3o. Com cobre refor\u00e7ado por Al e Fe\/Ni, oferecem opera\u00e7\u00e3o n\u00e3o faiscante, n\u00e3o magn\u00e9tica e rolamento suave de baixo atrito\u2014ideais para v\u00e1lvulas, bombas e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8848,"parent":2965,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2969","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>Esferas de bronze \u2013 resist\u00eancia e estabilidade<\/title>\n<meta name=\"description\" content=\"Esferas de bronze destacam-se pela resist\u00eancia \u00e0 corros\u00e3o, estabilidade dimensional e fiabilidade em aplica\u00e7\u00f5es industriais exigentes\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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