{"id":1945,"date":"2023-08-23T13:47:05","date_gmt":"2023-08-23T05:47:05","guid":{"rendered":"https:\/\/uniasen.com\/?p=1945"},"modified":"2025-03-31T10:36:43","modified_gmt":"2025-03-31T02:36:43","slug":"as-nzs-1163-steel-pipe","status":"publish","type":"post","link":"https:\/\/uniasen.com\/pt\/blog\/tubo-de-aco-conforme-a-norma-nzs-1163\/","title":{"rendered":"Especifica\u00e7\u00f5es das se\u00e7\u00f5es ocas de a\u00e7o estrutural formado a frio AS\/NZS 1163"},"content":{"rendered":"<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_384405076\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/lorain_tubular.webp\" class=\"attachment-original size-original\" alt=\"Fabricante de tubos SMLS\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/lorain_tubular.webp 1000w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/lorain_tubular-300x225.webp 300w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/lorain_tubular-768x576.webp 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_384405076 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<section class=\"section\" id=\"section_271609824\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-576800569\">\n\n\t<div id=\"col-1379935382\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>O que \u00e9 o tubo de a\u00e7o AS 1163?<\/h2>\n<p><a href=\"https:\/\/uniasen.com\/pt\/padroes\/como-nzs-1163\/\">AS\/NZS 1163<\/a> \u00e9 a norma para se\u00e7\u00f5es ocas de a\u00e7o soldadas por resist\u00eancia formadas a frio na Austr\u00e1lia e na Nova Zel\u00e2ndia. Ela se aplica a todas as se\u00e7\u00f5es ocas de a\u00e7o usadas em estruturas de constru\u00e7\u00e3o.<\/p>\n<p>A norma tem v\u00e1rios graus, como C250, C350, C450, etc. O valor da classe representa a resist\u00eancia m\u00ednima de rendimento do material (em MPa).<\/p>\n<p>Os requisitos de teste da AS\/NZS 1163 incluem como cortar amostras para testes de tra\u00e7\u00e3o e impacto, o processo de envelhecimento, a qualidade do comprimento da se\u00e7\u00e3o oca e as soldas externas. Essas etapas ajudam a garantir que o produto atenda aos padr\u00f5es de qualidade.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-621310555\">\n\n\t<div id=\"col-130849912\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Tipos e graus de AS 1163<\/h2>\n<p>A AS\/NZS 1163 abrange uma variedade de tipos e graus, inclusive:<\/p>\n<ul>\n<li>Se\u00e7\u00f5es ocas circulares (CHS) nas classes C250, C250L0, C350, C350L0, C450 e C450L0<\/li>\n<li>Se\u00e7\u00f5es ocas retangulares (RHS) nas classes C250, C250L0, C350, C350L0, C450 e C450L0<\/li>\n<li>Se\u00e7\u00f5es quadradas ocas (SHS) nas classes C250, C250L0, C350, C350L0, C450 e C450L0<\/li>\n<\/ul>\n<p>A norma AS 1163 oferece uma variedade de op\u00e7\u00f5es para requisitos estruturais de diferentes resist\u00eancias. A seguir, apresentamos as caracter\u00edsticas e os cen\u00e1rios de aplica\u00e7\u00e3o de v\u00e1rias das principais classes C250, C350 e C450.<\/p>\n<h3>AS 1163 C250<\/h3>\n<p>O AS 1163 C250 tem uma resist\u00eancia m\u00ednima ao escoamento de 250 megapascals (MPa). \u00c9 de baixo custo, f\u00e1cil de processar e soldar, adequado para projetos com or\u00e7amentos limitados e requisitos de baixa resist\u00eancia.<\/p>\n<h3>AS 1163 C350<\/h3>\n<p>O AS 1163 C350 \u00e9 o grau mais comumente usado no AS 1163, com uma resist\u00eancia ao escoamento de 350 MPa, e \u00e9 amplamente usado em estruturas de arma\u00e7\u00e3o de edif\u00edcios comerciais.<\/p>\n<h3>AS 1163 C450<\/h3>\n<p>Sua resist\u00eancia m\u00ednima de rendimento \u00e9 de 450 MPa. Tem alta resist\u00eancia e tenacidade em baixas temperaturas, e \u00e9 frequentemente usado em estruturas pesadas.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_271609824 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n<div class=\"row\"  id=\"row-1185162115\">\n\n\t<div id=\"col-981788264\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Especifica\u00e7\u00e3o AS 1163<\/h2>\n<table>\n<thead>\n<tr>\n<th>Tipo<\/th>\n<th><a href=\"https:\/\/uniasen.com\/pt\/produtos\/tubo-erw\/\">ERW<\/a> (CHS), <a href=\"https:\/\/uniasen.com\/pt\/produtos\/secoes-ocas\/\">SE\u00c7\u00c3O HOLLOW<\/a> (CHS, RHS, SHS)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Espessura da parede<\/td>\n<td>1,6 mm a 16 mm<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">Tamanho<\/td>\n<td>Se\u00e7\u00f5es ocas redondas (CHS): 21,3 mm* 165,1 mm, tamanhos maiores de at\u00e9 610 mm est\u00e3o dispon\u00edveis, dependendo das capacidades do fabricante.<\/td>\n<\/tr>\n<tr>\n<td>Se\u00e7\u00f5es ocas quadradas (SHS): 20 mm*20 mm - 400 mm*400 mm<\/td>\n<\/tr>\n<tr>\n<td>Se\u00e7\u00f5es ocas retangulares (RHS): 50 * 20 mm - 500 mm * 300 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1756983576\">\n\n\t<div id=\"col-687445845\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Composi\u00e7\u00f5es qu\u00edmicas<\/h2>\n<table>\n<thead>\n<tr>\n<th>Padr\u00e3o<\/th>\n<th>Grau<\/th>\n<th colspan=\"11\">Composi\u00e7\u00e3o qu\u00edmica % max<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><\/td>\n<td><\/td>\n<td>C<\/td>\n<td>Si<\/td>\n<td>Mn<\/td>\n<td>P<\/td>\n<td>S<\/td>\n<td>Cr<\/td>\n<td>Mo<\/td>\n<td>IA<\/td>\n<td>Ti<\/td>\n<td>Elementos de microliga<\/td>\n<td>CE<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"6\">AS\/NZ 1163<\/td>\n<td>C250<\/td>\n<td rowspan=\"2\">0.12<\/td>\n<td rowspan=\"2\">0.05<\/td>\n<td rowspan=\"2\">0.5<\/td>\n<td rowspan=\"2\">0.03<\/td>\n<td rowspan=\"2\">0.03<\/td>\n<td rowspan=\"2\">0.15<\/td>\n<td rowspan=\"2\">0.1<\/td>\n<td rowspan=\"2\">0.1<\/td>\n<td rowspan=\"2\">0.04<\/td>\n<td rowspan=\"2\">0.03<\/td>\n<td rowspan=\"2\">0.25<\/td>\n<\/tr>\n<tr>\n<td>C250L0<\/td>\n<\/tr>\n<tr>\n<td>C350<\/td>\n<td rowspan=\"2\">0.2<\/td>\n<td rowspan=\"2\">0.25<\/td>\n<td rowspan=\"2\">1.6<\/td>\n<td rowspan=\"2\">0.03<\/td>\n<td rowspan=\"2\">0.03<\/td>\n<td rowspan=\"2\">0.3<\/td>\n<td rowspan=\"2\">0.1<\/td>\n<td rowspan=\"2\">0.1<\/td>\n<td rowspan=\"2\">0.04<\/td>\n<td rowspan=\"2\">0.15<\/td>\n<td rowspan=\"2\">0.43<\/td>\n<\/tr>\n<tr>\n<td>C350L0<\/td>\n<\/tr>\n<tr>\n<td>C450<\/td>\n<td rowspan=\"2\">0.2<\/td>\n<td rowspan=\"2\">0.25<\/td>\n<td rowspan=\"2\">1.7<\/td>\n<td rowspan=\"2\">0.03<\/td>\n<td rowspan=\"2\">0.03<\/td>\n<td rowspan=\"2\">0.3<\/td>\n<td rowspan=\"2\">0.35<\/td>\n<td rowspan=\"2\">0.1<\/td>\n<td rowspan=\"2\">0.04<\/td>\n<td rowspan=\"2\">0.15<\/td>\n<td rowspan=\"2\">0.43<\/td>\n<\/tr>\n<tr>\n<td>C450L0<\/td>\n<\/tr>\n<tr>\n<td>ASTM A53<\/td>\n<td>B<\/td>\n<td>0.3<\/td>\n<td>&#8211;<\/td>\n<td>1.2<\/td>\n<td>0.05<\/td>\n<td>0.045<\/td>\n<td>0.4<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1838861147\">\n\n\t<div id=\"col-2146140903\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Propriedades mec\u00e2nicas<\/h2>\n<table>\n<thead>\n<tr>\n<th rowspan=\"2\">Padr\u00e3o<\/th>\n<th rowspan=\"2\">Grau<\/th>\n<th>Resist\u00eancia \u00e0 tra\u00e7\u00e3o<\/th>\n<th>Resist\u00eancia ao rendimento<\/th>\n<th>Teste de impacto<\/th>\n<\/tr>\n<tr>\n<th>(MPa)<\/th>\n<th>(MPa)<\/th>\n<th>(J)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td rowspan=\"3\">AS\/NZ 1163<\/td>\n<td>C250,C250L0<\/td>\n<td>320<\/td>\n<td>250<\/td>\n<td rowspan=\"3\">Os testes de impacto devem ser realizados a 0\u00b0C, de acordo com a norma AS 1544.2<\/td>\n<\/tr>\n<tr>\n<td>C350,C350L0<\/td>\n<td>430<\/td>\n<td>350<\/td>\n<\/tr>\n<tr>\n<td>C450,C450L0<\/td>\n<td>500<\/td>\n<td>450<\/td>\n<\/tr>\n<tr>\n<td>ASTM A53<\/td>\n<td>B<\/td>\n<td>&gt;415<\/td>\n<td>\u2265240<\/td>\n<td>-<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\n\t<section class=\"section\" id=\"section_357597027\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-660705967\">\n\n\t<div id=\"col-209976171\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Processo de fabrica\u00e7\u00e3o de se\u00e7\u00f5es ocas AS 1163<\/h2>\n<p>O processo de fabrica\u00e7\u00e3o das se\u00e7\u00f5es ocas da AS 1163 envolve uma s\u00e9rie de etapas cuidadosamente controladas para produzir se\u00e7\u00f5es ocas de a\u00e7o estrutural formadas a frio e soldadas por resist\u00eancia el\u00e9trica (ERW) que atendam aos rigorosos requisitos da norma.<\/p>\n<p>O processo garante que as se\u00e7\u00f5es atendam \u00e0s propriedades mec\u00e2nicas, \u00e0s toler\u00e2ncias dimensionais e aos padr\u00f5es de qualidade especificados na norma AS\/NZS 1163:2016. Veja abaixo as etapas detalhadas do processo de fabrica\u00e7\u00e3o.<\/p>\n<h3>Sele\u00e7\u00e3o de mat\u00e9ria-prima<\/h3>\n<p>O processo come\u00e7a com a sele\u00e7\u00e3o de bobinas de a\u00e7o de alta qualidade, geralmente feitas de a\u00e7o de baixo carbono para atender aos requisitos de composi\u00e7\u00e3o qu\u00edmica da AS 1163. O a\u00e7o deve atender aos limites de carbono equivalente (CE) da norma.<\/p>\n<h3>Conforma\u00e7\u00e3o e soldagem<\/h3>\n<p>A AS 1163 utiliza o endurecimento por conforma\u00e7\u00e3o a frio para aumentar a resist\u00eancia do a\u00e7o. Depois que a tira de a\u00e7o \u00e9 formada em um formato tubular, as bordas s\u00e3o unidas e soldadas por meio de solda por resist\u00eancia el\u00e9trica (ERW).<\/p>\n<h3>Tratamento de superf\u00edcie e acabamento<\/h3>\n<p>As se\u00e7\u00f5es ocas geralmente s\u00e3o tratadas com um tratamento de superf\u00edcie laminado. A AS 1163 envolve outros tratamentos de superf\u00edcie, como galvaniza\u00e7\u00e3o e revestimento.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_357597027 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_822863653\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n<div class=\"row\"  id=\"row-804494183\">\n\n\t<div id=\"col-298172140\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Requisitos de teste mec\u00e2nico do tubo AS 1163<\/h2>\n<div class=\"row\"  id=\"row-114482396\">\n\n\t<div id=\"col-158110989\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_2132026699\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"765\" src=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/IMG_3178-1030x773.webp\" class=\"attachment-large size-large\" alt=\"Diferentes tipos de fabrica\u00e7\u00e3o de tubos API 5L\" srcset=\"https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/IMG_3178-1030x773.webp 1030w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/IMG_3178-300x225.webp 300w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/IMG_3178-768x576.webp 768w, https:\/\/uniasen.com\/wp-content\/uploads\/2023\/08\/IMG_3178.webp 1440w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_2132026699 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>O tubo AS\/NZS 1163 deve ser submetido a v\u00e1rios testes mec\u00e2nicos, incluindo um teste de tra\u00e7\u00e3o de acordo com a AS 1391, um teste de impacto a 0\u00b0C, conforme a AS 1544.2, e um teste de achatamento a frio.<\/p>\n<div class=\"row\"  id=\"row-773974794\">\n\n\t<div id=\"col-2019875417\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h3>Teste de tra\u00e7\u00e3o<\/h3>\n<p>O teste de tra\u00e7\u00e3o \u00e9 realizado de acordo com a norma AS 1391. A taxa de deforma\u00e7\u00e3o ao se aproximar do ponto de escoamento deve estar dentro da faixa mais alta de taxa de deforma\u00e7\u00e3o indicada na AS 1391. Esse teste mede a for\u00e7a necess\u00e1ria para puxar algo, como uma corda, um fio ou uma viga estrutural, at\u00e9 o ponto de ruptura.<\/p>\n<h3>Teste de impacto<\/h3>\n<p>Os testes de impacto s\u00e3o realizados a 0\u00b0C, de acordo com a norma AS 1544.2. Esse teste mede a resist\u00eancia do material a cargas de alta taxa e \u00e9 usado para determinar a quantidade de energia absorvida pelo material durante a fratura. Isso \u00e9 importante para avaliar a resist\u00eancia do material.<\/p>\n<h3>Teste de achatamento a frio<\/h3>\n<p>O teste de achatamento a frio \u00e9 realizado em temperatura ambiente entre duas superf\u00edcies planas paralelas. A solda est\u00e1 localizada a 45 graus para di\u00e2metros externos nominais menores ou iguais a 60 mm e a 90 graus para di\u00e2metros maiores que 60 mm. A pe\u00e7a de teste \u00e9 achatada at\u00e9 que a dist\u00e2ncia entre as superf\u00edcies seja de 0,75d, em que d \u00e9 o di\u00e2metro nominal da se\u00e7\u00e3o oca circular.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_822863653 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1685976458\">\n\t\t<div class=\"section-bg fill\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n\t<div id=\"text-1358917676\" class=\"text\">\n\t\t\n<h2 style=\"text-align: left;\">Diferen\u00e7a entre AS\/NZS 1163 e ASTM A53 B<\/h2>\n<p>Embora tanto a AS\/NZS 1163 quanto a ASTM A53 B sejam normas para produtos de a\u00e7o, elas diferem em escopo, aplica\u00e7\u00e3o, composi\u00e7\u00e3o qu\u00edmica e propriedades mec\u00e2nicas.<\/p>\n\t\t\n<style>\n#text-1358917676 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-1165637451\">\n\n\t<div id=\"col-1594561954\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h3>1. Escopo<\/h3>\n<p>A ASTM A53 B \u00e9 uma especifica\u00e7\u00e3o padr\u00e3o para tubos de a\u00e7o revestidos com zinco, pretos e banhados a quente, soldados e sem costura. Por outro lado, a AS\/NZS 1163 especifica os requisitos para se\u00e7\u00f5es ocas de a\u00e7o formadas a frio para fins estruturais.<\/p>\n<h3>2. Aplicativo<\/h3>\n<p>A ASTM A53 B \u00e9 uma especifica\u00e7\u00e3o geral de tubos de a\u00e7o que abrange tubos galvanizados e tubos pretos. Ele est\u00e1 dispon\u00edvel nos tipos S (sem costura), E (ERW, costura longitudinal soldada por resist\u00eancia el\u00e9trica) e F (soldado em forno). A AS\/NZS 1163 \u00e9 usada em uma variedade de aplica\u00e7\u00f5es, incluindo empilhamento de tubos, fabrica\u00e7\u00e3o, petr\u00f3leo e g\u00e1s, cabe\u00e7os, postes de sinaliza\u00e7\u00e3o, perfura\u00e7\u00e3o de po\u00e7os de \u00e1gua e muito mais.<\/p>\n<h3>3. Composi\u00e7\u00f5es qu\u00edmicas<\/h3>\n<p>A AS\/NZS 1163 e a ASTM A53 B t\u00eam composi\u00e7\u00f5es qu\u00edmicas diferentes. Por exemplo, a AS\/NZS 1163 C250 tem um teor m\u00e1ximo de carbono de 0,12%, enquanto a ASTM A53 B tem um teor m\u00e1ximo de carbono de 0,3%.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-454900148\">\n\n\t<div id=\"col-1521489046\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h3>4. Propriedades mec\u00e2nicas<\/h3>\n<p>As propriedades mec\u00e2nicas do AS\/NZS 1163 e do ASTM A53 B tamb\u00e9m s\u00e3o diferentes. Por exemplo, o AS\/NZS 1163 C250 tem uma resist\u00eancia \u00e0 tra\u00e7\u00e3o de 320 MPa e uma resist\u00eancia ao escoamento de 250 MPa, enquanto o ASTM A53 B tem uma resist\u00eancia \u00e0 tra\u00e7\u00e3o superior a 415 MPa e uma resist\u00eancia ao escoamento de pelo menos 240 MPa.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\n\t\t\n<style>\n#section_1685976458 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>","protected":false},"excerpt":{"rendered":"<p>A AS\/NZS 1163 define os requisitos para se\u00e7\u00f5es ocas de a\u00e7o estrutural usadas em projetos de constru\u00e7\u00e3o e engenharia na Austr\u00e1lia e na Nova Zel\u00e2ndia. Ela garante que essas se\u00e7\u00f5es sejam fabricadas e testadas para atender aos padr\u00f5es de qualidade e desempenho necess\u00e1rios.<\/p>","protected":false},"author":10,"featured_media":1846,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1945","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>AS\/NZS 1163 Cold-formed Structural Steel Hollow Sections Specifications<\/title>\n<meta name=\"description\" content=\"AS\/NZS 1163 defines cold-formed structural steel hollow sections for construction, offering grades like C250, C350, and C450. 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