{"id":5862,"date":"2020-04-30T07:33:24","date_gmt":"2020-04-30T07:33:24","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=5862"},"modified":"2025-07-01T06:34:20","modified_gmt":"2025-07-01T06:34:20","slug":"desempenho-e-processo-de-soldagem-do-aco-inoxidavel-duplex-2507","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/desempenho-e-processo-de-soldagem-do-aco-inoxidavel-duplex-2507\/","title":{"rendered":"2507 Desempenho de a\u00e7o inoxid\u00e1vel duplex e processo de soldagem"},"content":{"rendered":"

O a\u00e7o inoxid\u00e1vel duplex tornou-se um importante material de engenharia, amplamente utilizado na ind\u00fastria petroqu\u00edmica, offshore, equipamentos de campo de petr\u00f3leo, fabrica\u00e7\u00e3o de papel, constru\u00e7\u00e3o naval, prote\u00e7\u00e3o ambiental, etc.<\/em><\/h2>\n\n\n\n

O a\u00e7o inoxid\u00e1vel duplex 2507 \u00e9 desenvolvido com base no a\u00e7o inoxid\u00e1vel duplex 2205 de segunda gera\u00e7\u00e3o, atualmente possui SAF2507, UR52N +, Zeron100, S32750, 00Cr25Ni7Mo4N e outros graus.<\/em><\/p>\n\n\n\n

O 2507 \u00e9 composto de austenita e ferrita e tem as caracter\u00edsticas duplas do a\u00e7o inoxid\u00e1vel austen\u00edtico e do a\u00e7o inoxid\u00e1vel ferr\u00edtico, de modo que tem um coeficiente de expans\u00e3o t\u00e9rmica mais baixo e maior condutividade t\u00e9rmica do que o a\u00e7o inoxid\u00e1vel austen\u00edtico. O fator de corros\u00e3o por pite (PREN) \u00e9 superior a 40. \u00c9 resistente \u00e0 corros\u00e3o por pite, \u00e0 corros\u00e3o em fendas e ao cloreto rachaduras por corros\u00e3o sob tens\u00e3o<\/a>e tem alta resist\u00eancia, alta resist\u00eancia \u00e0 fadiga, baixa temperatura e alta tenacidade. \u00c9 um material amplamente utilizado.<\/p>\n\n\n\n

Nos \u00faltimos anos, com a cont\u00ednua expans\u00e3o do campo de aplica\u00e7\u00e3o de tubo duplex<\/a>, a demanda por tecnologia de soldagem aumentou, acelerando o desenvolvimento da tecnologia de soldagem.<\/p>\n\n\n\n

\n
\"Tubo
Tubos duplex 2507<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

V\u00e1rios elementos em duplex 2507 a\u00e7o inoxid\u00e1vel<\/h3>\n\n\n\n

O teor de carbono muito baixo da composi\u00e7\u00e3o qu\u00edmica do a\u00e7o inoxid\u00e1vel duplex 2507 pode melhorar a soldabilidade do a\u00e7o e reduzir a tend\u00eancia de precipita\u00e7\u00e3o de carboneto no limite do gr\u00e3o durante o tratamento t\u00e9rmico, aumentar a corros\u00e3o intergranular<\/a> resist\u00eancia, alto teor de cromo, alto teor de molibd\u00eanio<\/a> e o maior teor de nitrog\u00eanio podem melhorar a resist\u00eancia \u00e0 corros\u00e3o, de modo que ele tenha boa resist\u00eancia ao \u00e1cido f\u00f3rmico, \u00e1cido ac\u00e9tico, nitreto e outras corros\u00f5es uniformes, resist\u00eancia \u00e0 corros\u00e3o por pite e resist\u00eancia \u00e0 corros\u00e3o sob tens\u00e3o.<\/p>\n\n\n\n

O nitrog\u00eanio \u00e9 adicionado como um elemento de liga ao a\u00e7o inoxid\u00e1vel, o que pode melhorar a estabilidade da austenita e equilibrar a rela\u00e7\u00e3o de fase do a\u00e7o duplex. Pode aumentar a resist\u00eancia do a\u00e7o sem afetar a plasticidade e a tenacidade do a\u00e7o inoxid\u00e1vel e pode substituir parcialmente o n\u00edquel no a\u00e7o inoxid\u00e1vel para reduzir custos. O nitrog\u00eanio tem o efeito de retardar a dispers\u00e3o e precipita\u00e7\u00e3o de compostos intermet\u00e1licos e estabilizar a austenita em a\u00e7os inoxid\u00e1veis duplex.<\/p>\n\n\n\n

Soldagem<\/h3>\n\n\n
\n
\"Soldagem
Soldagem de escama de peixe<\/figcaption><\/figure>\n<\/div>\n\n\n

O m\u00e9todo de soldagem de a\u00e7o inoxid\u00e1vel 2507 duplex \u00e9 amplamente aplic\u00e1vel e pode ser soldado de v\u00e1rias maneiras. A entrada de calor de soldagem e a taxa de resfriamento afetam o equil\u00edbrio de fase da ferrita e austenita e o desempenho da junta soldada.<\/p>\n\n\n\n

A fim de garantir que a costura de solda tenha propor\u00e7\u00f5es adequadas e boas propriedades mec\u00e2nicas e desempenho de corros\u00e3o, a entrada de calor excessivamente pequena ou excessiva deve ser evitada durante a soldagem, controlada a 5-20kJ \/ cm, e o limite inferior deve ser tomado quando a soldagem fina pe\u00e7as muradas. Aumente a entrada de calor ao soldar pe\u00e7as de paredes espessas e a temperatura entre os canais n\u00e3o deve exceder 100 \u2103.<\/p>","protected":false},"featured_media":5864,"template":"","categories":[186],"tags":[],"class_list":["post-5862","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"\n2507 Duplex Stainless Steel Performance And Welding Process - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\n<meta name=\"description\" content=\"2507 duplex stainless steel has grades with: SAF2507, UR52N +, Zeron100, S32750, 00Cr25Ni7Mo4N and other grades and performance new welding methods...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kaysuns.com\/pt\/blog\/desempenho-e-processo-de-soldagem-do-aco-inoxidavel-duplex-2507\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2507 Duplex Stainless Steel Performance And Welding Process - 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