{"id":6184,"date":"2020-06-25T07:13:00","date_gmt":"2020-06-25T07:13:00","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=6184"},"modified":"2026-03-31T06:07:17","modified_gmt":"2026-03-31T06:07:17","slug":"o-que-e-a-liga-hastelloy-b2","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/o-que-e-a-liga-hastelloy-b2\/","title":{"rendered":"O que \u00e9 Hastelloy B2 Alloy?"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Vis\u00e3o geral da liga Hastelloy B2<\/strong><\/h2>\n\n\n\n<p>Hastelloy B2 alloy,which belongs to the Hastelloy alloy family , was developed mainly to prevent intergranular corrosion and knife edge corrosion of Hastelloy B alloy.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"486\" height=\"447\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/06\/hastelly-B2-alloy-round-bar.jpg\" alt=\"barra redonda de liga apressadamente B2\" class=\"wp-image-6185\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/06\/hastelly-B2-alloy-round-bar.jpg 486w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/06\/hastelly-B2-alloy-round-bar-300x276.jpg 300w\" sizes=\"(max-width: 486px) 100vw, 486px\" \/><figcaption class=\"wp-element-caption\">barra redonda de liga apressadamente B2<\/figcaption><\/figure>\n<\/div>\n\n\n<p>A principal diferen\u00e7a entre essa liga e a <a href=\"https:\/\/www.kaysuns.com\/pt\/propriedades-e-aplicacoes-explicadas-do-hastelloy-b\/\" target=\"_blank\">Hastelloy B<\/a> A liga tem baixo teor de carbono e de sil\u00edcio na composi\u00e7\u00e3o qu\u00edmica, e o teor de ferro caiu de menos de 6% para 2%.<\/p>\n\n\n\n<p>Devido \u00e0s mudan\u00e7as no conte\u00fado de carbono, sil\u00edcio e ferro, embora a estrutura da matriz da liga Hastelloy B2 n\u00e3o seja diferente daquela da liga Hastelloy B, a fase de precipita\u00e7\u00e3o na matriz da liga ou ao longo do contorno do gr\u00e3o \u00e9 muito diferente.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Resist\u00eancia \u00e0 corros\u00e3o<\/strong>s<\/h3>\n\n\n\n<p><strong>Corros\u00e3o total<\/strong>, as caracter\u00edsticas de desempenho da liga B2 contra \u00e1cido clor\u00eddrico, \u00e1cido sulf\u00farico, \u00e1cido fosf\u00f3rico e outros \u00e1cidos inorg\u00e2nicos s\u00e3o basicamente as mesmas da liga Hastelloy B. A resist\u00eancia \u00e0 corros\u00e3o \u00e9 geralmente melhor do que a da liga Hastelloy B, especialmente ap\u00f3s a soldagem. No \u00e1cido clor\u00eddrico fervente 20%, mesmo que a liga B2 seja deformada por 50% no trabalho a frio, isso n\u00e3o afeta sua resist\u00eancia \u00e0 corros\u00e3o.<\/p>\n\n\n\n<p><strong>Corros\u00e3o intergranular<\/strong>, devido ao baixo teor de carbono, sil\u00edcio e ferro na liga Hastelloy B2, carbonetos e algumas fases intermet\u00e1licas no a\u00e7o sensibilizado s\u00e3o muito menores do que a liga Hastelloy B, portanto, a resist\u00eancia desta liga \u00e0 corros\u00e3o intergranular \u00e9 melhor.<\/p>\n\n\n\n<p><strong>Corros\u00e3o sob tens\u00e3o<\/strong>, o teste mostra que quando o Fe\u22642% residual e Cr\u22641,0% na liga Hastelloy B2 \u00e9 muito baixo em compara\u00e7\u00e3o com a mesma liga com controle adequado da quantidade de ferro e cromo. Melhor do que o anterior.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Propriedades mec\u00e2nicas da liga Hastelloy B2<\/strong><\/h3>\n\n\n\n<p>A plasticidade da liga Hastelloy B2 no estado de envelhecimento em temperatura m\u00e9dia diminui e se deteriora com o tempo. Isso est\u00e1 relacionado \u00e0 precipita\u00e7\u00e3o da fase \u03b2, que \u00e9 dura e quebradi\u00e7a no estado de envelhecimento em temperatura m\u00e9dia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Desempenho de soldagem<\/strong><\/h3>\n\n\n\n<p>A liga Hastelloy B2 tem bom desempenho de soldagem e, devido ao baixo teor de carbono, sil\u00edcio e ferro nesta liga, a resist\u00eancia \u00e0 corros\u00e3o intergranular e \u00e0 corros\u00e3o do fio da navalha ap\u00f3s a soldagem \u00e9 melhor do que a Hastelloy B.<\/p>\n\n\n\n<p>Quando a quantidade de ferro e cromo na liga \u00e9 adequadamente controlada, a plasticidade, tenacidade, resist\u00eancia \u00e0 corros\u00e3o e soldabilidade da liga Hastelloy B2 ser\u00e3o melhoradas ainda mais.<\/p>\n\n\n\n<p>A liga Hastelloy B2 geralmente n\u00e3o requer tratamento t\u00e9rmico ap\u00f3s a soldagem. Esta liga \u00e9 mais adequada para equipamentos e componentes de soldagem do que a liga Hastelloy B.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Processamento a frio e quente e desempenho de forma\u00e7\u00e3o e processo de tratamento t\u00e9rmico<\/strong><\/h3>\n\n\n\n<p>Suas propriedades de processamento e conforma\u00e7\u00e3o a frio e a quente s\u00e3o basicamente semelhantes \u00e0s da liga B de Hastelloy. No entanto, quando a quantidade de ferro e cromo na liga B2 \u00e9 devidamente controlada, sua trabalhabilidade, especialmente a termoformabilidade, ser\u00e1 significativamente melhorada.<\/p>\n\n\n\n<p>Exceto pelas instru\u00e7\u00f5es especiais, eles precisam ser tratados ap\u00f3s o tratamento com solu\u00e7\u00e3o a 1066 \u2103. Exceto aqueles que controlam a quantidade de Fe + Cr na liga, geralmente n\u00e3o \u00e9 permitido permanecer e usar por um longo per\u00edodo de tempo entre 538 ~ 816 \u2103<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Aplica\u00e7\u00f5es<\/strong><\/h3>\n\n\n\n<p>B2 alloy can produce <a href=\"https:\/\/www.kaysuns.com\/pt\/fabricante-de-tubos-de-hastelloy-b2\/\" target=\"_blank\">hastelloy b2 pipes<\/a>, plates, bars, wires, strips and forgings.<\/p>\n\n\n\n<p>Usado principalmente em <a href=\"https:\/\/www.kaysuns.com\/pt\/\" target=\"_blank\">tubo e acess\u00f3rios<\/a>, recipientes e seus revestimentos, torres de rea\u00e7\u00e3o e revestimentos, bombas e v\u00e1lvulas que s\u00e3o resistentes ao \u00e1cido clor\u00eddrico, \u00e1cido sulf\u00farico, \u00e1cido fosf\u00f3rico e \u00e1cido f\u00f3rmico.<\/p>","protected":false},"featured_media":6185,"template":"","categories":[186],"tags":[],"class_list":["post-6184","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Hastelloy B2 Alloy? 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