{"id":4004,"date":"2024-06-29T15:08:45","date_gmt":"2024-06-29T15:08:45","guid":{"rendered":"https:\/\/machining-quote.com\/?p=4004"},"modified":"2024-07-09T09:33:06","modified_gmt":"2024-07-09T09:33:06","slug":"304-vs-420-stainless-steel","status":"publish","type":"post","link":"https:\/\/machining-quote.com\/pt\/bolg\/304-vs-420-stainless-steel\/","title":{"rendered":"Qual \u00e9 a diferen\u00e7a entre o a\u00e7o inoxid\u00e1vel 304 e 420"},"content":{"rendered":"<h4>\u00cdndice<\/h4>\n<ul>\n<li><a href=\"#equivalents\">Quais s\u00e3o os equivalentes do a\u00e7o inoxid\u00e1vel 304 e 420?<\/a><\/li>\n<li><a href=\"#comparison\">SS420 e SS304: Qual \u00e9 melhor?<\/a><\/li>\n<li><a href=\"#pros-cons\">Vantagens e desvantagens do uso de a\u00e7o inoxid\u00e1vel 304 vs 420<\/a><\/li>\n<li><a href=\"#corrosion-resistance\">Resist\u00eancia \u00e0 corros\u00e3o em a\u00e7o inoxid\u00e1vel 420 vs 304<\/a><\/li>\n<li><a href=\"#knife\">Faca de a\u00e7o inoxid\u00e1vel 304 vs 420<\/a><\/li>\n<li><a href=\"#chemical-composition\">Composi\u00e7\u00e3o Qu\u00edmica AISI 420 vs 304<\/a><\/li>\n<li><a href=\"#heat-resistance\">Resist\u00eancia ao calor: analisando a\u00e7o inoxid\u00e1vel 420 vs 304<\/a><\/li>\n<li><a href=\"#machinability\">Usinabilidade do a\u00e7o inoxid\u00e1vel 420 em compara\u00e7\u00e3o com o a\u00e7o inoxid\u00e1vel 304<\/a><\/li>\n<li><a href=\"#heat-treatment\">Processos de tratamento t\u00e9rmico para a\u00e7o inoxid\u00e1vel 420 e 304<\/a><\/li>\n<li><a href=\"#summary\">Gr\u00e1fico resumido de qual \u00e9 a diferen\u00e7a entre o a\u00e7o inoxid\u00e1vel 304 e 420<\/a><\/li>\n<li><a href=\"#conclusion\">Conclus\u00e3o<\/a><\/li>\n<\/ul>\n<p>\u201cDas cozinhas aos talheres: explorando a versatilidade do a\u00e7o inoxid\u00e1vel 304 e a dureza do a\u00e7o inoxid\u00e1vel 420\u201d<\/p>\n<p>Os a\u00e7os inoxid\u00e1veis 304 e 420 s\u00e3o amplamente utilizados devido \u00e0 sua resist\u00eancia e resist\u00eancia \u00e0 corros\u00e3o. A principal diferen\u00e7a entre eles reside na sua composi\u00e7\u00e3o qu\u00edmica e propriedades mec\u00e2nicas, que ditam seus usos espec\u00edficos na ind\u00fastria. O a\u00e7o inoxid\u00e1vel 304, pertencente \u00e0 fam\u00edlia dos austen\u00edticos, \u00e9 altamente resistente \u00e0 corros\u00e3o e vers\u00e1til, principalmente devido ao seu alto teor de cromo e n\u00edquel. O a\u00e7o inoxid\u00e1vel 420, uma liga martens\u00edtica, cont\u00e9m n\u00edveis mais elevados de carbono, oferecendo maior dureza e resist\u00eancia, mas menor resist\u00eancia \u00e0 corros\u00e3o em compara\u00e7\u00e3o com o 304.<\/p>\n<h2 id=\"equivalents\">Quais s\u00e3o os equivalentes do a\u00e7o inoxid\u00e1vel 304 e 420?<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Padr\u00e3o<\/th>\n<th>A\u00e7o inoxid\u00e1vel 304<\/th>\n<th>A\u00e7o Inoxid\u00e1vel 420<\/th>\n<\/tr>\n<tr>\n<td>PT<\/td>\n<td>1.4301<\/td>\n<td>1.4021<\/td>\n<\/tr>\n<tr>\n<td>ISO<\/td>\n<td>4301<\/td>\n<td>4021<\/td>\n<\/tr>\n<tr>\n<td>chin\u00eas<\/td>\n<td>06Cr19Ni10<\/td>\n<td>2Cr13<\/td>\n<\/tr>\n<tr>\n<td>japon\u00eas<\/td>\n<td>SUS304<\/td>\n<td>SUS420J1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"comparison\">SS420 e SS304: Qual \u00e9 melhor?<\/h2>\n<ul>\n<li><strong>A\u00e7o inoxid\u00e1vel 304:<\/strong> Melhor para resist\u00eancia \u00e0 corros\u00e3o e conformabilidade.<\/li>\n<li><strong>A\u00e7o inoxid\u00e1vel 420:<\/strong> Melhor para dureza e reten\u00e7\u00e3o de bordas.<\/li>\n<\/ul>\n<h2 id=\"pros-cons\">Vantagens e desvantagens do uso de a\u00e7o inoxid\u00e1vel 304 vs 420<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Aspeto<\/th>\n<th>A\u00e7o inoxid\u00e1vel 304<\/th>\n<th>A\u00e7o Inoxid\u00e1vel 420<\/th>\n<\/tr>\n<tr>\n<td>Resist\u00eancia \u00e0 corros\u00e3o<\/td>\n<td>Elevado<\/td>\n<td>Moderado<\/td>\n<\/tr>\n<tr>\n<td>Dureza<\/td>\n<td>Moderado<\/td>\n<td>Elevado<\/td>\n<\/tr>\n<tr>\n<td>Formabilidade<\/td>\n<td>Excelente<\/td>\n<td>Pobres<\/td>\n<\/tr>\n<tr>\n<td>Soldabilidade<\/td>\n<td>Excelente<\/td>\n<td>Moderado<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"corrosion-resistance\">Resist\u00eancia \u00e0 corros\u00e3o em a\u00e7o inoxid\u00e1vel 420 vs 304<\/h2>\n<ul>\n<li><strong>A\u00e7o inoxid\u00e1vel 304:<\/strong> Muito resistente \u00e0 ferrugem e oxida\u00e7\u00e3o. Adequado para ambientes \u00famidos e salgados.<\/li>\n<li><strong>A\u00e7o inoxid\u00e1vel 420:<\/strong> Menos resistente \u00e0 ferrugem. Melhor em ambientes secos.<\/li>\n<\/ul>\n<h2 id=\"knife\">Faca de a\u00e7o inoxid\u00e1vel 304 vs 420<\/h2>\n<ul>\n<li><strong>A\u00e7o inoxid\u00e1vel 304:<\/strong> Bom para facas de cozinha que precisam resistir \u00e0 ferrugem.<\/li>\n<li><strong>A\u00e7o inoxid\u00e1vel 420:<\/strong> Melhor para l\u00e2minas que precisam permanecer afiadas, como instrumentos cir\u00fargicos e talheres.<\/li>\n<\/ul>\n<h2 id=\"chemical-composition\">Composi\u00e7\u00e3o Qu\u00edmica AISI 420 vs 304<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Elemento<\/th>\n<th>A\u00e7o inoxid\u00e1vel 304<\/th>\n<th>A\u00e7o Inoxid\u00e1vel 420<\/th>\n<\/tr>\n<tr>\n<td>Cr\u00f3mio<\/td>\n<td>18-20%<\/td>\n<td>12-14%<\/td>\n<\/tr>\n<tr>\n<td>N\u00edquel<\/td>\n<td>8-10.5%<\/td>\n<td>Nenhum<\/td>\n<\/tr>\n<tr>\n<td>Carbono<\/td>\n<td>M\u00e1x. 0,08%<\/td>\n<td>0.15-0.40%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"heat-resistance\">Resist\u00eancia ao calor: analisando a\u00e7o inoxid\u00e1vel 420 vs 304<\/h2>\n<ul>\n<li><strong>A\u00e7o inoxid\u00e1vel 304:<\/strong> Pode suportar at\u00e9 870\u00b0C em uso cont\u00ednuo. Bom para aplica\u00e7\u00f5es de alta temperatura.<\/li>\n<li><strong>A\u00e7o inoxid\u00e1vel 420:<\/strong> Pode suportar at\u00e9 650\u00b0C. Melhor para aplica\u00e7\u00f5es que necessitam de alta dureza.<\/li>\n<\/ul>\n<h2 id=\"machinability\">Usinabilidade do a\u00e7o inoxid\u00e1vel 420 em compara\u00e7\u00e3o com o a\u00e7o inoxid\u00e1vel 304<\/h2>\n<ul>\n<li><strong>A\u00e7o inoxid\u00e1vel 304:<\/strong> Mais f\u00e1cil de usinar. Tende a trabalhar duro.<\/li>\n<li><strong>A\u00e7o inoxid\u00e1vel 420:<\/strong> Mais dif\u00edcil de usinar devido \u00e0 alta dureza. Requer velocidades mais lentas e ferramentas mais robustas.<\/li>\n<\/ul>\n<h2 id=\"heat-treatment\">Processos de tratamento t\u00e9rmico para a\u00e7o inoxid\u00e1vel 420 e 304<\/h2>\n<ul>\n<li><strong>A\u00e7o inoxid\u00e1vel 304:<\/strong> N\u00e3o pode ser endurecido por tratamento t\u00e9rmico. Endurecido por trabalho a frio.<\/li>\n<li><strong>A\u00e7o inoxid\u00e1vel 420:<\/strong> Pode ser endurecido por aquecimento a 950-1050\u00b0C e depois temperado.<\/li>\n<\/ul>\n<h2 id=\"summary\">Gr\u00e1fico resumido de qual \u00e9 a diferen\u00e7a entre o a\u00e7o inoxid\u00e1vel 304 e 420<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Aspeto<\/th>\n<th>A\u00e7o inoxid\u00e1vel 304<\/th>\n<th>A\u00e7o Inoxid\u00e1vel 420<\/th>\n<\/tr>\n<tr>\n<td>Resist\u00eancia \u00e0 corros\u00e3o<\/td>\n<td>Elevado<\/td>\n<td>Moderado<\/td>\n<\/tr>\n<tr>\n<td>Dureza<\/td>\n<td>Moderado<\/td>\n<td>Elevado<\/td>\n<\/tr>\n<tr>\n<td>Formabilidade<\/td>\n<td>Excelente<\/td>\n<td>Pobres<\/td>\n<\/tr>\n<tr>\n<td>Soldabilidade<\/td>\n<td>Excelente<\/td>\n<td>Moderado<\/td>\n<\/tr>\n<tr>\n<td>Resist\u00eancia ao calor<\/td>\n<td>At\u00e9 870\u00b0C<\/td>\n<td>At\u00e9 650\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Aplica\u00e7\u00f5es<\/td>\n<td>Utens\u00edlios de cozinha, dispositivos m\u00e9dicos<\/td>\n<td>Talheres, Instrumentos Cir\u00fargicos<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"conclusion\">Conclus\u00e3o<\/h2>\n<p>A principal diferen\u00e7a entre o a\u00e7o inoxid\u00e1vel 304 e 420 est\u00e1 na sua composi\u00e7\u00e3o qu\u00edmica e propriedades mec\u00e2nicas. O a\u00e7o inoxid\u00e1vel 304 \u00e9 altamente resistente \u00e0 corros\u00e3o e oxida\u00e7\u00e3o, tornando-o adequado para diversas aplica\u00e7\u00f5es e ambientes. Por outro lado, o a\u00e7o inoxid\u00e1vel 420 possui maior teor de carbono, proporcionando maior dureza e resist\u00eancia, mas menor resist\u00eancia \u00e0 corros\u00e3o, tornando-o ideal para talheres e outras aplica\u00e7\u00f5es de l\u00e2minas.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u00cdndice Quais s\u00e3o os equivalentes do a\u00e7o inoxid\u00e1vel 304 e 420? SS420 e SS304: Qual \u00e9 melhor? Vantagens e desvantagens do uso de a\u00e7o inoxid\u00e1vel 304 vs 420 Resist\u00eancia \u00e0 corros\u00e3o em a\u00e7o inoxid\u00e1vel 420 vs 304 Faca de a\u00e7o inoxid\u00e1vel 304 vs 420 AISI 420 vs 304 Composi\u00e7\u00e3o qu\u00edmica Resist\u00eancia ao calor: Analisando a\u00e7o inoxid\u00e1vel 420 vs 304 [\u2026]<\/p>","protected":false},"author":1,"featured_media":4073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","content-type":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-4004","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-material-selection-guide"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/posts\/4004","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/comments?post=4004"}],"version-history":[{"count":2,"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/posts\/4004\/revisions"}],"predecessor-version":[{"id":4007,"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/posts\/4004\/revisions\/4007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/media\/4073"}],"wp:attachment":[{"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/media?parent=4004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/categories?post=4004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/machining-quote.com\/pt\/wp-json\/wp\/v2\/tags?post=4004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}