{"id":6196,"date":"2020-06-30T07:12:39","date_gmt":"2020-06-30T07:12:39","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=6196"},"modified":"2025-06-19T06:49:43","modified_gmt":"2025-06-19T06:49:43","slug":"o-que-e-tp347h","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/o-que-e-tp347h\/","title":{"rendered":"O que \u00e9 TP347H?"},"content":{"rendered":"

Introdu\u00e7\u00e3o de tubo de a\u00e7o inoxid\u00e1vel TP347H (1Cr19Ni11Nb)<\/h2>\n\n\n\n

Como um fornecedor de acess\u00f3rios para tubos de a\u00e7o inoxid\u00e1vel<\/a>, hoje os kaysuns compartilhar\u00e3o a introdu\u00e7\u00e3o do que \u00e9 TP347H (1Cr19Ni11Nb) tubos de a\u00e7o inoxid\u00e1vel<\/a>.<\/p>\n\n\n

\n
\"Tubo<\/figure>\n<\/div>\n\n\n

O TP347H (1Cr19Ni11Nb) \u00e9 um a\u00e7o inoxid\u00e1vel austen\u00edtico Cr-Ni com alto teor de carbono e ni\u00f3bio. Devido ao elemento estabilizador Nb, ele tem boa resist\u00eancia a corros\u00e3o intergranular<\/a> e corros\u00e3o sob tens\u00e3o intergranular por \u00e1cido polissulf\u00farico.<\/p>\n\n\n\n

O a\u00e7o inoxid\u00e1vel 347H \u00e9 um tipo de a\u00e7o inoxid\u00e1vel com excelente estabilidade. Sob a condi\u00e7\u00e3o de que a temperatura alcance 800-1500 \u00b0 F (427-816 \u00b0 C) e o carboneto de cromo seja precipitado, ele ainda pode manter uma boa resist\u00eancia \u00e0 corros\u00e3o intergranular. <\/p>\n\n\n\n

Devido \u00e0 adi\u00e7\u00e3o de tit\u00e2nio na composi\u00e7\u00e3o, 347H ainda pode manter a estabilidade no caso de forma\u00e7\u00e3o de carboneto de cromo.<\/p>\n\n\n\n

S\u00e9rie TP347H & TP316, quem \u00e9 melhor?<\/strong><\/h3>\n\n\n\n

O Nb tem menos probabilidade de queimar do que o Ti, este tipo de a\u00e7o pode ser usado como n\u00facleo de soldagem para soldar a\u00e7o inoxid\u00e1vel austen\u00edtico de cromo-n\u00edquel. Este a\u00e7o tem maior resist\u00eancia a altas temperaturas e melhor resist\u00eancia \u00e0 oxida\u00e7\u00e3o em alta temperatura do que a s\u00e9rie 316, por isso \u00e9 frequentemente usado como a\u00e7o de alta resist\u00eancia.<\/p>\n\n\n\n

Por causa de suas excelentes propriedades mec\u00e2nicas, o a\u00e7o inoxid\u00e1vel 347H tem vantagens em trabalhar em ambientes de alta temperatura. Comparado com a s\u00e9rie 316, o a\u00e7o inoxid\u00e1vel 347H tem melhor ductilidade e resist\u00eancia \u00e0 fratura por estresse.<\/p>\n\n\n\n

Aplica\u00e7\u00f5es<\/strong><\/h3>\n\n\n\n

Como sua resist\u00eancia \u00e0 corros\u00e3o em \u00e1cidos, \u00e1lcalis, sal e outros meios corrosivos \u00e9 semelhante \u00e0 do a\u00e7o inoxid\u00e1vel austen\u00edtico 18-8 contendo Ti, \u00e9 amplamente utilizado em caldeiras, gera\u00e7\u00e3o de energia, petr\u00f3leo, produtos qu\u00edmicos, fibra sint\u00e9tica, alimentos, papel e outras ind\u00fastrias. <\/p>\n\n\n\n

* A temperatura de antioxida\u00e7\u00e3o permitida para Tubos de a\u00e7o inoxid\u00e1vel TP347H<\/a> em tubos de caldeira \u00e9 750 \u2103.<\/p>\n\n\n\n

Utilizado principalmente em tubos de superaquecedor de grandes caldeiras, tubos de reaquecimento, tubos de vapor e trocadores de calor na ind\u00fastria petroqu\u00edmica.<\/p>\n\n\n\n

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