{"id":30626,"date":"2022-03-09T13:24:25","date_gmt":"2022-03-09T13:24:25","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=30626"},"modified":"2025-06-12T06:09:00","modified_gmt":"2025-06-12T06:09:00","slug":"tubo-de-aco-inoxidavel-316l-vs-tubo-ss-1-4404","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/tubo-de-aco-inoxidavel-316l-vs-tubo-ss-1-4404\/","title":{"rendered":"Tubo de a\u00e7o inoxid\u00e1vel 316L VS 1.4404 Tubo de a\u00e7o inoxid\u00e1vel"},"content":{"rendered":"
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Tubo de a\u00e7o inoxid\u00e1vel 316L VS 1.4404 Tubo de a\u00e7o inoxid\u00e1vel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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316L tubo de a\u00e7o inoxid\u00e1vel<\/a> tem boa resist\u00eancia \u00e0 corros\u00e3o e propriedades de processamento mec\u00e2nico, al\u00e9m de ser amplamente utilizado no setor qu\u00edmico e ter uma ampla gama de aplica\u00e7\u00f5es em outros setores. A\u00e7o inoxid\u00e1vel 316L<\/a> \u00e9 um dos representantes t\u00edpicos do a\u00e7o inoxid\u00e1vel austen\u00edtico e \u00e9 tamb\u00e9m o material mais usado, especialmente na Uni\u00e3o Europeia, nos Estados Unidos e em alguns outros pa\u00edses desenvolvidos.<\/p>

Ent\u00e3o qual \u00e9 a diferen\u00e7a entre 316L e 1.4404, eles s\u00e3o de grau equivalente? Porque muitas vezes temos clientes que precisam de Tubo de a\u00e7o inoxid\u00e1vel 1.4404<\/a> e acess\u00f3rios, somos incapazes de fornecer 1.4404 na pr\u00e1tica e s\u00f3 podemos substitu\u00ed-lo pelo grau ASME. Portanto, vamos pegar uma amostra de tubo de a\u00e7o inoxid\u00e1vel hoje e analisar se eles s\u00e3o intercambi\u00e1veis.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Por que temos esta pergunta<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Porque temos muitos clientes em projetos onde eles precisam das normas EN\/DIN. E as normas EN n\u00e3o s\u00e3o notas comuns no mercado dom\u00e9stico chin\u00eas. Quando os clientes precisam de pequenas quantidades, normalmente solicitamos que verifiquem se podemos usar a classe ASME equivalente para substituir a classe EN, porque a ASTM est\u00e1 mais prontamente dispon\u00edvel. Portanto, isto nos leva \u00e0 pergunta, faremos hoje uma breve an\u00e1lise a partir de sua composi\u00e7\u00e3o qu\u00edmica e propriedades mec\u00e2nicas.<\/p>

A maior parte do 316L dispon\u00edvel \u00e9 normalmente produzida de acordo com o padr\u00e3o americano na China. Por raz\u00f5es de custo, as usinas sider\u00fargicas geralmente reduzem ao m\u00e1ximo o conte\u00fado de Ni de seus produtos. A norma americana estipula que o conte\u00fado de Ni do 316L \u00e9 10-14%, enquanto a norma europ\u00e9ia estipula que o conte\u00fado de Ni do 316L \u00e9 10-13%. Devido ao alto pre\u00e7o do n\u00edquel e \u00e0 necessidade das sider\u00fargicas de reduzir os custos, o teor real de Ni que detectamos geralmente est\u00e1 entre 10,01 e 10,5, e raramente \u00e9 superior a 10,5.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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316L VS 1.4404<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Composi\u00e7\u00e3o qu\u00edmica<\/strong><\/h3>\n

Consulte a tabela abaixo, composi\u00e7\u00e3o TP316L da ASTM A312, e 1.4404 da norma EN 10216-5, s\u00e3o a norma comum para tubos de a\u00e7o inoxid\u00e1vel nos EUA e na UE, respectivamente. Em compara\u00e7\u00e3o, constatamos que 1.4404 tem uma clara exig\u00eancia de conte\u00fado N e uma exig\u00eancia de conte\u00fado Cr m\u00ednimo de 16,5. Os outros valores listados aqui s\u00e3o requisitos m\u00e1ximos, portanto, pensamos que os outros elementos s\u00e3o os mesmos. Se TP316L for usado ao inv\u00e9s de 1.4404, ent\u00e3o \u00e9 importante considerar se o conte\u00fado de Cr atende ao requisito m\u00ednimo de 16,5. Se o conte\u00fado Cr estiver entre 16,0 e 16,5, seria uma quest\u00e3o que precisamos considerar se isto \u00e9 aceit\u00e1vel para o cliente.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"316L,\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Exig\u00eancias mec\u00e2nicas<\/strong><\/h3>

Como podemos ver na tabela abaixo, os requisitos para tubos de a\u00e7o inoxid\u00e1vel 1.4404 s\u00e3o mais altos, mas a diferen\u00e7a n\u00e3o \u00e9 significativa. De acordo com nossa experi\u00eancia pr\u00e1tica, a ASTM A312 TP316L \u00e9 capaz de atender \u00e0s exig\u00eancias.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Da compara\u00e7\u00e3o acima, pensamos que o TP316L \u00e9 uma alternativa ao 1.4404 se o cliente n\u00e3o tiver requisitos especiais. Portanto, se voc\u00ea precisar de tubos e acess\u00f3rios de a\u00e7o inoxid\u00e1vel<\/a> em 1.4404, por favor, considere permitir o uso do 316L em vez dele, se a quantidade n\u00e3o for consider\u00e1vel.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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