{"id":56704,"date":"2026-01-20T06:12:23","date_gmt":"2026-01-20T06:12:23","guid":{"rendered":"https:\/\/www.kaysuns.com\/?post_type=blog&#038;p=56704"},"modified":"2026-01-20T06:16:19","modified_gmt":"2026-01-20T06:16:19","slug":"liga-20-vs-28","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/pt\/blog\/liga-20-vs-28\/","title":{"rendered":"Liga 20 vs. 28, qual \u00e9 a diferen\u00e7a?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"56704\" class=\"elementor elementor-56704\" data-elementor-post-type=\"blog\">\n\t\t\t\t<div class=\"elementor-element elementor-element-75804a9 e-flex e-con-boxed e-con e-parent\" data-id=\"75804a9\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ce26fba elementor-widget elementor-widget-text-editor\" data-id=\"ce26fba\" 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<strong>Liga 20 vs. 28<\/strong>,Embora ambos os materiais perten\u00e7am \u00e0 fam\u00edlia do a\u00e7o inoxid\u00e1vel de alto desempenho, eles travam \u201cbatalhas\u201d qu\u00edmicas diferentes.\u201d<br \/>\nSe a escolha for incorreta, voc\u00ea corre o risco de sofrer rachaduras prematuras por corros\u00e3o sob tens\u00e3o ou corros\u00e3o localizada. Este guia detalha as diferen\u00e7as qu\u00edmicas, mec\u00e2nicas e pr\u00e1ticas entre essas duas pot\u00eancias.\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\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6e238e6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6e238e6\" 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-dd00842\" data-id=\"dd00842\" 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-d6591ec elementor-widget elementor-widget-heading\" data-id=\"d6591ec\" 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\">Entendendo o Alloy 20<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9925312 elementor-widget elementor-widget-text-editor\" data-id=\"9925312\" 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\tA Liga 20 (UNS N08020) ganhou o apelido de \u201cLiga de \u00c1cido Sulf\u00farico\u201d por um bom motivo: os cientistas desenvolveram especificamente esse material estabilizado com ni\u00f3bio para resistir ao \u00e1cido sulf\u00farico em ebuli\u00e7\u00e3o.\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-170890b elementor-widget elementor-widget-text-editor\" data-id=\"170890b\" 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\tEm uma rede de tubula\u00e7\u00e3o t\u00edpica, o Alloy 20 \u00e9 a escolha ideal para o processamento qu\u00edmico e a produ\u00e7\u00e3o de alimentos. Seu alto teor de n\u00edquel evita rachaduras por corros\u00e3o sob tens\u00e3o induzidas por cloreto. Al\u00e9m disso, a adi\u00e7\u00e3o de cobre proporciona uma defesa exclusiva contra \u00e1cidos agressivos. Para os projetistas de acess\u00f3rios para tubos de a\u00e7o inoxid\u00e1vel, o Alloy 20 oferece uma solu\u00e7\u00e3o confi\u00e1vel para o transporte de \u00e1cidos de concentra\u00e7\u00e3o m\u00e9dia a alta.\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-ffc4495 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ffc4495\" 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-3eee571\" data-id=\"3eee571\" 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-df38943 elementor-widget elementor-widget-heading\" data-id=\"df38943\" 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\">Entendendo a liga 28<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bdbb4d elementor-widget elementor-widget-text-editor\" data-id=\"8bdbb4d\" 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\tA Alloy 28 (UNS N08028) \u00e9 um a\u00e7o inoxid\u00e1vel austen\u00edtico de alta liga trabalhado a frio. Enquanto a Alloy 20 se concentra em \u00e1cidos, a Alloy 28 prospera em po\u00e7os profundos e \u201d\u00e1cidos\u201d de petr\u00f3leo e g\u00e1s.\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-ccc9bf3 elementor-widget elementor-widget-text-editor\" data-id=\"ccc9bf3\" 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\tNo mundo dos tubos de a\u00e7o inoxid\u00e1vel, o Alloy 28 aparece com frequ\u00eancia em tubula\u00e7\u00f5es de fundo de po\u00e7o e trocadores de calor. Ele lida com ambientes de alta press\u00e3o onde o sulfeto de hidrog\u00eanio (H<sub>2<\/sub>Se o seu sistema enfrenta condi\u00e7\u00f5es de mar profundo ou produ\u00e7\u00e3o complexa de \u00e1cido fosf\u00f3rico, o Alloy 28 \u00e9 o candidato mais forte.\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-d2c5c7d elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d2c5c7d\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-dcc4acc\" data-id=\"dcc4acc\" 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-5228c4b elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"5228c4b\" 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\">O que fazemos<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e4c756d elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"e4c756d\" data-element_type=\"widget\" data-settings=\"{&quot;drop_cap&quot;:&quot;yes&quot;}\" 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>Placa<\/li><li>Folha<\/li><li>Forjados<\/li><li>Barra redonda<\/li><\/ul>\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-ba82fa1 elementor-drop-cap-yes elementor-widget__width-initial elementor-drop-cap-view-default elementor-widget elementor-widget-text-editor\" data-id=\"ba82fa1\" data-element_type=\"widget\" data-settings=\"{&quot;drop_cap&quot;:&quot;yes&quot;}\" 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>Mesa<\/li><li>Tubos<\/li><li>Conex\u00f5es<\/li><li>Personalizado<\/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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-798de64\" data-id=\"798de64\" 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-c8e0641 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"c8e0641\" 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>Entre em contato conosco para obter mais informa\u00e7\u00f5es\u00a0<\/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-26361d2 elementor-align-center elementor-mobile-align-center elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"26361d2\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjQ2ODEzIiwidG9nZ2xlIjpmYWxzZX0%3D\" target=\"_blank\" id=\"#241018\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contate-nos<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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<div class=\"elementor-element elementor-element-78078dc e-flex e-con-boxed e-con e-parent\" data-id=\"78078dc\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-fa45f3a e-con-full e-flex e-con e-child\" data-id=\"fa45f3a\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-31950b3 elementor-widget elementor-widget-heading\" data-id=\"31950b3\" 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\">Quando escolher o Alloy 20<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-707d56f elementor-widget elementor-widget-text-editor\" data-id=\"707d56f\" 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>Processamento de \u00e1cido sulf\u00farico<\/li><li>Linhas aliment\u00edcias e farmac\u00eauticas<\/li><li>Fabrica\u00e7\u00e3o complexa<\/li><li>Requisito de estabiliza\u00e7\u00e3o de ni\u00f3bio<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-15d4512 e-con-full e-flex e-con e-child\" data-id=\"15d4512\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f75f74 elementor-widget elementor-widget-heading\" data-id=\"0f75f74\" 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\">Quando escolher a liga 28<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-445ad62 elementor-widget elementor-widget-text-editor\" data-id=\"445ad62\" 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>Ambientes de g\u00e1s \u00e1cido<\/li><li>Produ\u00e7\u00e3o de \u00e1cido fosf\u00f3rico<\/li><li>Trocadores de calor de \u00e1gua do mar<\/li><li>Tubula\u00e7\u00e3o de alta press\u00e3o<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-525335b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"525335b\" 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-658b0ec\" data-id=\"658b0ec\" 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-201b5e2 elementor-widget elementor-widget-heading\" data-id=\"201b5e2\" 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\">Liga 20 VS 28: compara\u00e7\u00e3o de composi\u00e7\u00e3o qu\u00edmica<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-78d4647 elementor-widget elementor-widget-text-editor\" data-id=\"78d4647\" 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<table>\n<tbody>\n<tr bgcolor=\"#00a0e9\">\n<th>Elemento (%)<\/th>\n<th>Liga 20 (UNS N08020)<\/th>\n<th>Liga 28 (UNS N08028)<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Ni<\/td>\n<td>32.5 - 35<\/td>\n<td>30 - 32<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Cr<\/td>\n<td>19 - 21<\/td>\n<td>26 - 28<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Fe<\/td>\n<td>Equil\u00edbrio (~ 33)<\/td>\n<td>Equil\u00edbrio (~ 35)<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Mo<\/td>\n<td>2 - 3<\/td>\n<td>3 - 4<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Cu<\/td>\n<td>3 - 4<\/td>\n<td>0.6 - 1.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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-e37c259 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e37c259\" 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-8cdf026\" data-id=\"8cdf026\" 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-252d2c9 elementor-widget elementor-widget-heading\" data-id=\"252d2c9\" 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\">Liga 20 VS 28: press\u00e3o e mec\u00e2nica<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8a10104 elementor-widget elementor-widget-text-editor\" data-id=\"8a10104\" 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\tA liga 28 \u00e9 frequentemente submetida a trabalho a frio para aumentar suas propriedades mec\u00e2nicas, o que a torna ideal para tubos de alta press\u00e3o, nos quais a espessura da parede deve ser minimizada. Por outro lado, a liga 20 mant\u00e9m um perfil de resist\u00eancia austen\u00edtica mais padr\u00e3o, sendo mais f\u00e1cil de formar acess\u00f3rios complexos para tubos de a\u00e7o inoxid\u00e1vel, como t\u00eas e redutores.\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-ae95e40 elementor-widget elementor-widget-text-editor\" data-id=\"ae95e40\" 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\tAl\u00e9m disso, as taxas de expans\u00e3o t\u00e9rmica diferem ligeiramente. Ao projetar uma junta de flange, voc\u00ea deve garantir que suas gaxetas e parafusos possam suportar o ciclo t\u00e9rmico dessas ligas. Como ambas t\u00eam alto teor de n\u00edquel, elas se expandem mais do que o a\u00e7o carbono. Portanto, o uso dos padr\u00f5es de montagem corretos, como o ASME PCC-1, \u00e9 vital para uma conex\u00e3o sem vazamentos.\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-cf8daa0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cf8daa0\" 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-97f7011\" data-id=\"97f7011\" 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-165c1a9 elementor-widget elementor-widget-heading\" data-id=\"165c1a9\" 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\">Liga 20 VS 28: Compara\u00e7\u00e3o da resist\u00eancia \u00e0 corros\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b5b61f elementor-widget elementor-widget-text-editor\" data-id=\"7b5b61f\" 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<table>\n<tbody>\n<tr bgcolor=\"#00a0e9\">\n<th>M\u00eddia Corrosiva<\/th>\n<th>Liga preferida<\/th>\n<th>Motivo da sele\u00e7\u00e3o<\/th>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">\u00c1cido sulf\u00farico (H<sub>2<\/sub>SO<sub>4<\/sub>)<\/td>\n<td rowspan=\"3\">Liga 20<\/td>\n<td>Maior teor de cobre e n\u00edquel<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">\u00c1cido n\u00edtrico (HNO<sub>3<\/sub>)<\/td>\n<td>Desempenho est\u00e1vel em \u00e1cidos oxidantes<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">Fluidos farmac\u00eauticos<\/td>\n<td>Excelente pureza e facilidade de limpeza<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">\u00c1cido fosf\u00f3rico (H<sub>3<\/sub>PO<sub>4<\/sub>)<\/td>\n<td rowspan=\"2\">Liga 28<\/td>\n<td>Conte\u00fado superior de cromo (27%)<\/td>\n<\/tr>\n<tr>\n<td bgcolor=\"#05B8E4\">G\u00e1s \u00e1cido (H<sub>2<\/sub>S + Cl<sup>\u2013<\/sup>)<\/td>\n<td>Melhor resist\u00eancia ao Pitting\/SSC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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-a7bd5c0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a7bd5c0\" 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-e54527a\" data-id=\"e54527a\" 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-08f1aa9 elementor-widget elementor-widget-heading\" data-id=\"08f1aa9\" 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\">Liga 20 VS 28: Desafios de fabrica\u00e7\u00e3o e soldagem<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-716d333 elementor-widget elementor-widget-text-editor\" data-id=\"716d333\" 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\tA soldagem de a\u00e7o inoxid\u00e1vel dessas classes requer experi\u00eancia profissional.<a href=\"https:\/\/www.kaysuns.com\/pt\/fornecedor-de-tubos-de-liga-20\/\" target=\"_blank\" rel=\"noopener\">Tubo de liga 20<\/a> \u00e9 estabilizado com ni\u00f3bio para evitar a \u201csensibiliza\u00e7\u00e3o\u201d durante a soldagem, o que significa que voc\u00ea pode sold\u00e1-lo sem perder a resist\u00eancia \u00e0 corros\u00e3o na zona afetada pelo calor.\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-5257e45 elementor-widget elementor-widget-text-editor\" data-id=\"5257e45\" 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\tA liga 28 requer um controle cuidadoso do calor para evitar a forma\u00e7\u00e3o de fases intermet\u00e1licas. Se o banho de solda ficar muito quente por muito tempo, o material pode se tornar quebradi\u00e7o.<br \/>Os profissionais da Kaysuns costumam usar a soldagem TIG com g\u00e1s arg\u00f4nio de alta pureza para o passe de raiz de um tubo de liga 28, o que garante que a camada passiva interna permane\u00e7a intacta, evitando futuras corros\u00f5es localizadas na junta.\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<div class=\"elementor-element elementor-element-25c10c3 e-flex e-con-boxed e-con e-parent\" data-id=\"25c10c3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-017f4e2 elementor-cta--layout-image-left elementor-cta--mobile-layout-image-above elementor-cta--skin-classic elementor-animated-content elementor-widget elementor-widget-call-to-action\" data-id=\"017f4e2\" data-element_type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<a class=\"elementor-cta\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjQ2ODEzIiwidG9nZ2xlIjpmYWxzZX0%3D\" target=\"_blank\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/www.kaysuns.com\/wp-content\/uploads\/2025\/12\/alloy-20-pipe.webp);\" role=\"img\" aria-label=\"tubo de liga 20\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tSinta-se \u00e0 vontade para entrar em contato conosco\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tA KAYSUNS oferece solu\u00e7\u00f5es em pacotes para materiais de tubula\u00e7\u00e3o, como tubos, conex\u00f5es, flanges, v\u00e1lvulas, placas, forjados, lingotes de a\u00e7o inoxid\u00e1vel, duplex e a\u00e7os-liga, todos os tipos de fixadores (parafusos, porcas, arruelas planas, arruelas de press\u00e3o) e outros produtos. Aceitamos servi\u00e7os personalizados para nossos produtos e alguns deles podem ser fornecidos em pequenas quantidades. Se tiver alguma d\u00favida sobre nossa empresa e nossos produtos, entre em contato conosco.\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<span class=\"elementor-cta__button elementor-button elementor-size-\">\n\t\t\t\t\t\tObter cota\u00e7\u00e3o\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b1d9f71 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b1d9f71\" 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-625d3ff\" data-id=\"625d3ff\" 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-52f1b50 elementor-widget elementor-widget-heading\" data-id=\"52f1b50\" 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\">Liga 20 vs. 28: Compara\u00e7\u00e3o de PREN<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7811b69 elementor-widget elementor-widget-text-editor\" data-id=\"7811b69\" 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\tQuando os engenheiros avaliam a liga 20 vs. 28 para ambientes com \u00e1gua do mar ou ricos em cloreto, eles observam o n\u00famero equivalente de resist\u00eancia \u00e0 corros\u00e3o (PREN), uma f\u00f3rmula que mede a resist\u00eancia de uma liga a furos localizados.\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-81f14c8 elementor-widget elementor-widget-text-editor\" data-id=\"81f14c8\" 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<div class=\"math-block\" data-math=\"PREN = Cr + 3.3 \\cdot Mo + 16 \\cdot N\"><strong>PREN = Cr + 3,3 - Mo + 16 - N<\/strong><\/div>\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-81e76f5 elementor-widget elementor-widget-text-editor\" data-id=\"81e76f5\" 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\tA liga 28 normalmente apresenta um PREN de aproximadamente <b data-path-to-node=\"17\" data-index-in-node=\"50\">38 a 40<\/b>,enquanto o Alloy 20 fica em torno de <b data-path-to-node=\"17\" data-index-in-node=\"87\">24 a 26<\/b>.<br \/>Consequentemente, a Alloy 28 \u00e9 significativamente melhor equipada para ambientes em que dep\u00f3sitos de sal ou fluidos estagnados podem causar rupturas localizadas na camada passiva. Se o seu sistema de tubula\u00e7\u00e3o lida com trocadores de calor resfriados por \u00e1gua do mar, o PREN mais alto da Alloy 28 \u00e9 essencial para a seguran\u00e7a a longo prazo.\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-fc1e1a1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fc1e1a1\" 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-0173d9e\" data-id=\"0173d9e\" 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-c93f506 elementor-widget elementor-widget-heading\" data-id=\"c93f506\" 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-e8d23c4 elementor-widget-divider--view-line_text elementor-widget-divider--element-align-left elementor-widget elementor-widget-divider\" data-id=\"e8d23c4\" 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-48ba3ed 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=\"48ba3ed\" 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 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