{"id":18592,"date":"2021-12-20T13:41:45","date_gmt":"2021-12-20T13:41:45","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=18592"},"modified":"2025-12-10T06:09:06","modified_gmt":"2025-12-10T06:09:06","slug":"aco-inoxidavel-904l-3","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/aco-inoxidavel-904l-3\/","title":{"rendered":"904L A\u00e7o Inoxid\u00e1vel"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"18592\" class=\"elementor elementor-18592\" data-elementor-post-type=\"blog\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f06c8fc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f06c8fc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bca44cb\" data-id=\"bca44cb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe5d752 elementor-widget elementor-widget-image\" data-id=\"fe5d752\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"840\" height=\"370\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883.jpg\" class=\"attachment-full size-full wp-image-18595\" alt=\"Tubo de a\u00e7o inoxid\u00e1vel 904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883.jpg 840w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883-300x132.jpg 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883-768x338.jpg 768w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/904L-stainless-steel-pipe-e1765346403883-18x8.jpg 18w\" sizes=\"(max-width: 840px) 100vw, 840px\" \/>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3259347 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3259347\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0d5aed7\" data-id=\"0d5aed7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c4446bc elementor-widget elementor-widget-heading\" data-id=\"c4446bc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">O que \u00e9 o A\u00e7o Inoxid\u00e1vel 904L?<\/h1>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4b3d6df elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4b3d6df\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0379479\" data-id=\"0379479\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c4859fb elementor-widget elementor-widget-text-editor\" data-id=\"c4859fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A liga 904L \u00e9 um a\u00e7o inoxid\u00e1vel superausten\u00edtico projetado para uma variedade de meios que exigem alta resist\u00eancia \u00e0 corros\u00e3o. Essa liga cont\u00e9m alto teor de cromo e n\u00edquel, e com <a href=\"https:\/\/www.kaysuns.com\/pt\/papel-do-molibdenio-em-tubos-e-conexoes-de-aco-inoxidavel\/\" target=\"_blank\" rel=\"noopener\">molibd\u00eanio<\/a> e cobre como componentes adicionais, sua excelente resist\u00eancia \u00e0 corros\u00e3o pode ser garantida.<br \/>Com o teor de 25% de n\u00edquel e 4,5% de molibd\u00eanio, a liga 904L \u00e9 superior aos a\u00e7os inoxid\u00e1veis 316L e 317L com molibd\u00eanio na resist\u00eancia ao cloreto <a href=\"https:\/\/www.kaysuns.com\/pt\/rachaduras-por-corrosao-sob-tensao-em-aco-inoxidavel\/\" target=\"_blank\" rel=\"noopener\">rachaduras por corros\u00e3o sob tens\u00e3o<\/a>, corros\u00e3o e corros\u00e3o.<\/p><p>Inicialmente, a liga 904L \u00e9 desenvolvida para a aplica\u00e7\u00e3o de resist\u00eancia \u00e0 corros\u00e3o em \u00e1cido sulf\u00farico dilu\u00eddo. Ele tamb\u00e9m tem um bom desempenho na resist\u00eancia a outros \u00e1cidos inorg\u00e2nicos (como o \u00e1cido fosf\u00f3rico quente) e \u00e0 maioria dos \u00e1cidos org\u00e2nicos.<br \/>Na pr\u00e1tica, a liga 904L \u00e9 f\u00e1cil de ser soldada e usinada na oficina.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f85fb76 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f85fb76\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2432c74\" data-id=\"2432c74\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-17ac74d elementor-widget elementor-widget-heading\" data-id=\"17ac74d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Padr\u00e3o de a\u00e7o inoxid\u00e1vel 904L<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d92094a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d92094a\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d05ec0b\" data-id=\"d05ec0b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5e7fbec elementor-widget elementor-widget-text-editor\" data-id=\"5e7fbec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Grau EN: <\/strong>1.4539<strong>\u00a0<\/strong><\/p><p><strong><a href=\"\/pt\/qual-e-o-significado-de-astm\/\" target=\"_blank\" rel=\"noopener\">ASTM<\/a>\/Grau ASME:<br \/><\/strong>ASTM SA240 para placas SS<br \/>ASTM SB625 para placas e folhas SS<br \/>ASTM SB677 \/ SB674 N08904 para canos e tubos<br \/>ASTM SB366 WP904L para acess\u00f3rios forjados<br \/>ASTM SB459 N08904 para forjados e flanges<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fd65ad5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fd65ad5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-61e3d24\" data-id=\"61e3d24\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-736659f elementor-widget elementor-widget-heading\" data-id=\"736659f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Resist\u00eancia \u00e0 corros\u00e3o do a\u00e7o inoxid\u00e1vel 904L<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7af1378 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7af1378\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3d2da21\" data-id=\"3d2da21\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7d4302e elementor-widget elementor-widget-text-editor\" data-id=\"7d4302e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Com alto teor de liga, a liga 904L tem um desempenho excelente em resist\u00eancia \u00e0 corros\u00e3o uniforme.<\/p><p>Inicialmente, a liga 904L \u00e9 desenvolvida para a aplica\u00e7\u00e3o de resist\u00eancia \u00e0 corros\u00e3o em \u00e1cido sulf\u00farico dilu\u00eddo e \u00e9 um dos poucos a\u00e7os inoxid\u00e1veis que pode manter a resist\u00eancia total \u00e0 corros\u00e3o em temperaturas de at\u00e9 95 \u00b0 F (35 \u00b0 C) em toda a faixa de concentra\u00e7\u00e3o de 0 a 100%. Al\u00e9m disso, o 904L tamb\u00e9m tem excelente resist\u00eancia \u00e0 corros\u00e3o para muitos \u00e1cidos inorg\u00e2nicos (por exemplo, \u00e1cido fosf\u00f3rico) e a maioria dos \u00e1cidos org\u00e2nicos. No entanto, solu\u00e7\u00f5es \u00e1cidas e \u00e1cidas contendo \u00edons de halog\u00eanio s\u00e3o muito corrosivas e a resist\u00eancia \u00e0 corros\u00e3o de 317L, 317LMN e 904L pode n\u00e3o ser capaz de defender.<\/p><p>\u00d3leos destilados de fric\u00e7\u00e3o geralmente requerem um material superior ao 316L, e 317Mn \u00e9 freq\u00fcentemente usado. Nessas solu\u00e7\u00f5es alcalinas concentradas a quente, a resist\u00eancia \u00e0 corros\u00e3o do material \u00e9 determinada principalmente por seu teor de n\u00edquel. Com o teor de n\u00edquel atingindo 25%, o 904L agora provou ser uma excelente alternativa para a maioria dos a\u00e7os inoxid\u00e1veis convencionais.<\/p><p>Para a\u00e7os inoxid\u00e1veis tradicionais, como <a href=\"\/pt\/o-que-e-aco-304l\/\" target=\"_blank\" rel=\"noopener\">304L<\/a> e <a href=\"\/pt\/o-que-e-o-aco-316l\/\" target=\"_blank\" rel=\"noopener\">316L<\/a>No entanto, eles s\u00e3o suscet\u00edveis a rachaduras por corros\u00e3o sob tens\u00e3o de cloreto sob determinadas condi\u00e7\u00f5es. A toler\u00e2ncia \u00e0 rachadura por corros\u00e3o sob tens\u00e3o do cloreto aumentar\u00e1 com o aumento do teor de n\u00edquel e molibd\u00eanio. Portanto, os a\u00e7os inoxid\u00e1veis superausten\u00edticos, como o 904L, t\u00eam maior resist\u00eancia \u00e0 rachadura por corros\u00e3o sob tens\u00e3o por cloreto.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e1eda93 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e1eda93\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-428dc3a\" data-id=\"428dc3a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d8dd1dc elementor-widget elementor-widget-heading\" data-id=\"d8dd1dc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">An\u00e1lise qu\u00edmica (%) de a\u00e7o inoxid\u00e1vel 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-48fe06f elementor-widget elementor-widget-image\" data-id=\"48fe06f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"715\" height=\"117\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel.png\" class=\"attachment-full size-full wp-image-18594\" alt=\"An\u00e1lise qu\u00edmica do a\u00e7o inoxid\u00e1vel 904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel.png 715w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel-600x98.png 600w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel-300x49.png 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Chemical-Analysis-of-904L-Stainless-Steel-18x3.png 18w\" sizes=\"(max-width: 715px) 100vw, 715px\" \/>\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<div class=\"elementor-element elementor-element-17e9a18 elementor-widget elementor-widget-image\" data-id=\"17e9a18\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"719\" height=\"171\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L.png\" class=\"attachment-full size-full wp-image-18598\" alt=\"Propriedade mec\u00e2nica da SS904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L.png 719w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L-600x143.png 600w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L-300x71.png 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/Mechanical-Property-of-SS904L-18x4.png 18w\" sizes=\"(max-width: 719px) 100vw, 719px\" \/>\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<div class=\"elementor-element elementor-element-3717aef elementor-widget elementor-widget-image\" data-id=\"3717aef\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"502\" height=\"189\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material.png\" class=\"attachment-full size-full wp-image-18597\" alt=\"anti-corros\u00e3o de material 904L\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material.png 502w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material-300x113.png 300w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2021\/12\/anti-corrosion-of-904L-material-18x7.png 18w\" sizes=\"(max-width: 502px) 100vw, 502px\" \/>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-61d4fa3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"61d4fa3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-272a3d8\" data-id=\"272a3d8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-76d1bae elementor-widget elementor-widget-heading\" data-id=\"76d1bae\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Processamento de 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f1938a elementor-widget elementor-widget-heading\" data-id=\"7f1938a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Forma\u00e7\u00e3o a frio<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc6e052 elementor-widget elementor-widget-text-editor\" data-id=\"fc6e052\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>O 904L \u00e9 f\u00e1cil de ser alongado e moldado. Em compara\u00e7\u00e3o com o <a href=\"\/pt\/o-que-e-aco-304\/\" target=\"_blank\" rel=\"noopener\">304<\/a> ou 304L, o conte\u00fado adicional de molibd\u00eanio e nitrog\u00eanio significa que ele exige um equipamento de processamento mais potente.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a185c4 elementor-widget elementor-widget-heading\" data-id=\"9a185c4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Conforma\u00e7\u00e3o a quente<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-443d80c elementor-widget elementor-widget-text-editor\" data-id=\"443d80c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A temperatura para a conforma\u00e7\u00e3o a quente \u00e9 recomendada entre 1562 e 2102\u00b0F (850-1150\u00b0C). Normalmente, os pr\u00f3ximos passos da enforma\u00e7\u00e3o a quente s\u00e3o o recozimento e o endurecimento. Entretanto, para 904L, se parar de se formar quando a temperatura for al\u00e9m de 2012\u00b0F (1100\u00b0C), o material deve ser revenido diretamente para que o material possa ser utilizado sem tratamento t\u00e9rmico posterior. Mais importante ainda, toda a pe\u00e7a pode ser extinguida quando a temperatura for superior a 1100\u00b0C (2012\u00b0F). Quando o aquecimento ou resfriamento local estiver abaixo de 2012\u00b0F (1100\u00b0C), e o resfriamento for muito lento, a forma\u00e7\u00e3o a quente deve seguir as opera\u00e7\u00f5es subseq\u00fcentes de recozimento e t\u00eampera. 904L deve ser recozido entre 1940 e 2084\u00b0F (1060-1140\u00b0C).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-068826b elementor-widget elementor-widget-heading\" data-id=\"068826b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Processamento<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e4e337a elementor-widget elementor-widget-text-editor\" data-id=\"e4e337a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A taxa de endurecimento de 904L na conforma\u00e7\u00e3o a frio o torna menos maquin\u00e1vel do que 410 e 304 a\u00e7os inoxid\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-649f2b1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"649f2b1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b143ec6\" data-id=\"b143ec6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5832342 elementor-widget elementor-widget-heading\" data-id=\"5832342\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Soldagem de a\u00e7o 904L<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3eac383 elementor-widget elementor-widget-text-editor\" data-id=\"3eac383\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>O 904L pode ser soldado com a maioria dos equipamentos padr\u00e3o. O material da placa austen\u00edtica tem uma estrutura austen\u00edtica uniforme e uma distribui\u00e7\u00e3o uniforme dos elementos de liga, o que pode causar a redistribui\u00e7\u00e3o de certos elementos, como molibd\u00eanio, cromo e n\u00edquel, ap\u00f3s a soldagem. E a separa\u00e7\u00e3o desses elementos retidos no tecido fundido soldado influenciar\u00e1 a resist\u00eancia \u00e0 corros\u00e3o em alguns ambientes. No entanto, a separa\u00e7\u00e3o dos elementos \u00e9 menos evidente no 904L, e esse material \u00e9 geralmente soldado com metal de adi\u00e7\u00e3o da mesma composi\u00e7\u00e3o que o metal base, ou mesmo sem metal de adi\u00e7\u00e3o.<\/p><p>O material de soldagem para 904L \u00e9 um eletrodo 20 25 CuL e um fio 20 25 CuL.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a1d507c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a1d507c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6aa449e\" data-id=\"6aa449e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c342acb elementor-widget elementor-widget-heading\" data-id=\"c342acb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">O a\u00e7o 904L \u00e9 superduplex?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f4c926 elementor-widget elementor-widget-text-editor\" data-id=\"0f4c926\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Como voc\u00ea pode ver pelos elementos qu\u00edmicos de 904L acima, 904L tem um teor muito alto de n\u00edquel de 23-28% e Cr de 19-23%. Isto difere dos a\u00e7os super duplex, tais como <a href=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2019\/07\/SUPER-DUPLEX-STEEL-2507.pdf\" target=\"_blank\">SAF 2507<\/a>que t\u00eam um baixo teor de N\u00edquel e alto teor de Cromo. Acreditamos que o 904L n\u00e3o \u00e9 um a\u00e7o super duplex, mas um a\u00e7o super inoxid\u00e1vel. Para <a href=\"https:\/\/www.kaysuns.com\/pt\/tubulacoes-de-aco-inoxidavel\/\" target=\"_blank\">Tubo de a\u00e7o inoxid\u00e1vel 904L<\/a>Ele \u00e9 diferente dos a\u00e7os super duplex, como o SAF2507, que t\u00eam um baixo teor de n\u00edquel e alto teor de Cr. Acreditamos que o 904L n\u00e3o \u00e9 um a\u00e7o super duplex, mas um a\u00e7o super inoxid\u00e1vel. Para o tubo de a\u00e7o inoxid\u00e1vel 904L, ele pertence \u00e0 norma ASTM SB677.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-96d6f2c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"96d6f2c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c4591ab\" data-id=\"c4591ab\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-428b5fe elementor-widget elementor-widget-heading\" data-id=\"428b5fe\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">904L Pre\u00e7o do A\u00e7o Inoxid\u00e1vel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-08f0df9 elementor-widget elementor-widget-text-editor\" data-id=\"08f0df9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Vemos que o 904L tem um alto teor de n\u00edquel e \u00e9 um super a\u00e7o inoxid\u00e1vel, que \u00e9 bastante caro. Em compara\u00e7\u00e3o com o comum 304,<a href=\"https:\/\/www.kaysuns.com\/pt\/\" target=\"_blank\">Tubos e acess\u00f3rios de a\u00e7o inoxid\u00e1vel 316L<\/a>O 904L \u00e9 duas vezes ou mais caro que 316L. Entretanto, o 904L tem melhor resist\u00eancia \u00e0 corros\u00e3o, portanto, em alguns casos, os clientes ainda escolher\u00e3o o 904L em vez de desistir dele devido ao seu pre\u00e7o.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6f2cabc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6f2cabc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-42cb284\" data-id=\"42cb284\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88f10a4 elementor-widget elementor-widget-heading\" data-id=\"88f10a4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Aplica\u00e7\u00f5es de tubos e conex\u00f5es 904L<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bc51a91 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bc51a91\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bc48e9e\" data-id=\"bc48e9e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8bd52bc elementor-widget elementor-widget-text-editor\" data-id=\"8bd52bc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Controle da Polui\u00e7\u00e3o do Ar: Usado nos purificadores de usinas termel\u00e9tricas a carv\u00e3o.<\/li><li>Processamento Qu\u00edmico: Utilizado nos equipamentos para produ\u00e7\u00e3o de \u00e1cido sulf\u00farico, \u00e1cido fosf\u00f3rico, \u00e1cidos inorg\u00e2nicos e org\u00e2nicos e fertilizantes fosfatados.<\/li><li>Processamento Metal\u00fargico: Utilizado em equipamentos de decapagem de \u00e1cido sulf\u00farico.<\/li><li>Produ\u00e7\u00e3o de \u00f3leo e g\u00e1s: Usado em equipamentos de processamento offshore.<\/li><li>Ind\u00fastria Farmac\u00eautica: Utilizada em equipamentos de processamento.<\/li><li>Celulose e Papel: Usado em equipamentos de processamento.<\/li><li>\u00c1gua do mar e \u00e1gua salobra: Usadas em condensadores, <a href=\"https:\/\/www.kaysuns.com\/pt\/trocador-de-calor-em-aco-inoxidavel\/\" target=\"_blank\" rel=\"noopener\">trocadores de calor<\/a> e <a href=\"\/pt\/\" target=\"_blank\" rel=\"noopener\">sistemas de tubula\u00e7\u00e3o<\/a>.<\/li><\/ul>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9349502 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9349502\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-29f30f6\" data-id=\"29f30f6\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-81af2e7 elementor-widget elementor-widget-heading\" data-id=\"81af2e7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Contate-nos<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be21aa2 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"be21aa2\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tEntre em contato\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad4fb12 elementor-align-start elementor-widget__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"ad4fb12\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-map-marker-alt\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">RM901 No.22 Tangjiaqiao Road Wenzhou China<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-phone-square-alt\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">+86 577 8551 1171<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"mailto:sales@kaysuns.com\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-envelope-square\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">sales@kaysuns.com<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kaysuns.com\/pt\/\" target=\"_blank\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-book-reader\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span 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