{"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\/es\/blog\/como-tuberia-de-acero-nzs-1163\/","title":{"rendered":"Especificaciones de las secciones huecas de acero estructural conformado en fr\u00edo AS\/NZS 1163"},"content":{"rendered":"<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_2143521818\">\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 tuber\u00edas 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_2143521818 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\n\t<section class=\"section\" id=\"section_1764539433\">\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-1040762091\">\n\n\t<div id=\"col-298296145\" 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>\u00bfQu\u00e9 son los tubos de acero AS 1163?<\/h2>\n<p><a href=\"https:\/\/uniasen.com\/es\/estandares\/como-nzs-1163\/\">AS\/Nueva Zelanda 1163<\/a> es la norma para perfiles huecos de acero soldados por resistencia conformados en fr\u00edo en Australia y Nueva Zelanda. Se aplica a todos los perfiles huecos de acero utilizados en estructuras de edificios.<\/p>\n<p>La norma tiene varios grados, como C250, C350, C450, etc. El valor del grado representa el l\u00edmite el\u00e1stico m\u00ednimo del material (en MPa).<\/p>\n<p>Los requisitos de ensayo de AS\/NZS 1163 incluyen c\u00f3mo cortar las muestras para los ensayos de tracci\u00f3n e impacto, el proceso de envejecimiento, la calidad de la longitud de la secci\u00f3n hueca y las soldaduras externas. Estos pasos ayudan a garantizar que el producto cumple las normas de calidad.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1797387716\">\n\n\t<div id=\"col-1067207821\" 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 y grados de AS 1163<\/h2>\n<p>AS\/NZS 1163 cubre una variedad de tipos y grados, que incluyen:<\/p>\n<ul>\n<li>Secciones Huecas Circulares (CHS) en grados C250, C250L0, C350, C350L0, C450 y C450L0<\/li>\n<li>Secciones Huecas Rectangulares (RHS) en grados C250, C250L0, C350, C350L0, C450 y C450L0<\/li>\n<li>Secciones huecas cuadradas (SHS) en grados C250, C250L0, C350, C350L0, C450 y C450L0<\/li>\n<\/ul>\n<p>La norma AS 1163 ofrece diversas opciones para requisitos estructurales de diferentes resistencias. A continuaci\u00f3n se presentan las caracter\u00edsticas y los escenarios de aplicaci\u00f3n de varios grados clave C250, C350 y C450.<\/p>\n<h3>AS 1163 C250<\/h3>\n<p>AS 1163 C250 tiene un l\u00edmite el\u00e1stico m\u00ednimo de 250 megapascales (MPa). Es de bajo coste, f\u00e1cil de procesar y soldar, adecuado para proyectos con presupuestos limitados y bajos requisitos de resistencia.<\/p>\n<h3>AS 1163 C350<\/h3>\n<p>AS 1163 C350 es el grado m\u00e1s com\u00fanmente utilizado en AS 1163, con un l\u00edmite el\u00e1stico de 350 MPa, y se utiliza ampliamente en estructuras de armaz\u00f3n de edificios comerciales.<\/p>\n<h3>AS 1163 C450<\/h3>\n<p>Su l\u00edmite el\u00e1stico m\u00ednimo es de 450 MPa. Tiene una gran resistencia y tenacidad a bajas temperaturas, y se utiliza a menudo en estructuras 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_1764539433 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n<div class=\"row\"  id=\"row-581573462\">\n\n\t<div id=\"col-1285248366\" 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>Especificaci\u00f3n AS 1163<\/h2>\n<table>\n<thead>\n<tr>\n<th>Tipo<\/th>\n<th><a href=\"https:\/\/uniasen.com\/es\/productos\/tubo-erw\/\">REG<\/a> (CHS), <a href=\"https:\/\/uniasen.com\/es\/productos\/secciones-huecas\/\">SECCI\u00d3N HONDONADA<\/a> (CHS, RHS, SHS)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>espesor de pared<\/td>\n<td>1,6 mm a 16 mm<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">Tama\u00f1o<\/td>\n<td>Perfiles huecos redondos (CHS): 21,3 mm* 165,1 mm, tama\u00f1os mayores de hasta 610 mm disponibles en funci\u00f3n de las capacidades del fabricante.<\/td>\n<\/tr>\n<tr>\n<td>Perfiles huecos cuadrados (SHS): 20 mm*20 mm - 400 mm*400 mm<\/td>\n<\/tr>\n<tr>\n<td>Perfiles huecos rectangulares (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-949743002\">\n\n\t<div id=\"col-305389234\" 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>Composiciones qu\u00edmicas<\/h2>\n<table>\n<thead>\n<tr>\n<th>Est\u00e1ndar<\/th>\n<th>Calificaci\u00f3n<\/th>\n<th colspan=\"11\">Composici\u00f3n qu\u00edmica % m\u00e1x.<\/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>Minnesota<\/td>\n<td>PAG<\/td>\n<td>S<\/td>\n<td>cr<\/td>\n<td>Mes<\/td>\n<td>AI<\/td>\n<td>Ti<\/td>\n<td>Elementos de microaleaci\u00f3n<\/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-1956326471\">\n\n\t<div id=\"col-1910620851\" 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>Propiedades mec\u00e1nicas<\/h2>\n<table>\n<thead>\n<tr>\n<th rowspan=\"2\">Est\u00e1ndar<\/th>\n<th rowspan=\"2\">Calificaci\u00f3n<\/th>\n<th>Resistencia a la tracci\u00f3n<\/th>\n<th>Fuerza de producci\u00f3n<\/th>\n<th>Prueba 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\">Las pruebas de impacto se realizar\u00e1n a 0 \u00b0C de acuerdo con 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>\u2013<\/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_107284912\">\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-64991916\">\n\n\t<div id=\"col-1888310500\" 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>Proceso de fabricaci\u00f3n de perfiles huecos AS 1163<\/h2>\n<p>El proceso de fabricaci\u00f3n de los perfiles huecos AS 1163 implica una serie de pasos cuidadosamente controlados para producir perfiles huecos estructurales de acero conformados en fr\u00edo y soldados por resistencia el\u00e9ctrica (ERW) que cumplan los estrictos requisitos de la norma.<\/p>\n<p>El proceso garantiza que las secciones cumplan las propiedades mec\u00e1nicas, las tolerancias dimensionales y las normas de calidad especificadas en AS\/NZS 1163:2016. A continuaci\u00f3n se detallan los pasos del proceso de fabricaci\u00f3n.<\/p>\n<h3>Selecci\u00f3n de materias primas<\/h3>\n<p>El proceso comienza con la selecci\u00f3n de bobinas de acero de alta calidad, normalmente fabricadas con acero de bajo contenido en carbono para cumplir los requisitos de composici\u00f3n qu\u00edmica de la norma AS 1163. El acero debe cumplir los l\u00edmites de carbono equivalente (CE) de la norma.<\/p>\n<h3>Conformado y soldadura<\/h3>\n<p>AS 1163 utiliza el endurecimiento por deformaci\u00f3n en fr\u00edo para aumentar la resistencia del acero. Una vez que la banda de acero tiene forma tubular, los bordes se unen y se sueldan mediante soldadura por resistencia el\u00e9ctrica (ERW).<\/p>\n<h3>Tratamiento y acabado de superficies<\/h3>\n<p>Los perfiles huecos suelen someterse a un tratamiento superficial de laminado. La norma AS 1163 incluye otros tratamientos superficiales, como el galvanizado y el revestimiento.<\/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_107284912 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_1768989880\">\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-406945063\">\n\n\t<div id=\"col-241418993\" 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 los ensayos mec\u00e1nicos de los tubos AS 1163<\/h2>\n<div class=\"row\"  id=\"row-713414091\">\n\n\t<div id=\"col-1990516221\" 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_170178076\">\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 fabricaci\u00f3n para tuber\u00edas 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_170178076 {\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>La tuber\u00eda AS\/NZS 1163 debe someterse a varias pruebas mec\u00e1nicas, incluida una prueba de tracci\u00f3n de acuerdo con AS 1391, una prueba de impacto a 0 \u00b0C seg\u00fan AS 1544.2 y una prueba de aplanamiento en fr\u00edo.<\/p>\n<div class=\"row\"  id=\"row-926564729\">\n\n\t<div id=\"col-357531191\" 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>Ensayo de tracci\u00f3n<\/h3>\n<p>La prueba de tracci\u00f3n se lleva a cabo de acuerdo con AS 1391. La tasa de deformaci\u00f3n al acercarse al l\u00edmite el\u00e1stico debe estar dentro del rango m\u00e1s alto de tasa de deformaci\u00f3n dado en AS 1391. Esta prueba mide la fuerza requerida para tirar de algo como cuerda, alambre, o una viga estructural hasta el punto de romperse.<\/p>\n<h3>Prueba de impacto<\/h3>\n<p>Las pruebas de impacto se realizan a 0\u00b0C de acuerdo con AS 1544.2. Esta prueba mide la resistencia del material a cargas de alta velocidad y se utiliza para determinar la cantidad de energ\u00eda absorbida por el material durante la fractura. Esto es importante para evaluar la dureza del material.<\/p>\n<h3>Prueba de aplanamiento en fr\u00edo<\/h3>\n<p>La prueba de aplanamiento en fr\u00edo se realiza a temperatura ambiente entre dos superficies planas paralelas. La soldadura se ubica a 45 grados para di\u00e1metros exteriores nominales menores o iguales a 60 mm y a 90 grados para di\u00e1metros mayores a 60 mm. La probeta se aplana hasta que la distancia entre las superficies sea 0,75d, donde d es el di\u00e1metro nominal de la secci\u00f3n hueca 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_1768989880 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n\n\t<section class=\"section\" id=\"section_627459387\">\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-4260399523\" class=\"text\">\n\t\t\n<h2 style=\"text-align: left;\">Diferencia entre AS\/NZS 1163 y ASTM A53 B<\/h2>\n<p>Si bien tanto AS\/NZS 1163 como ASTM A53 B son est\u00e1ndares para productos de acero, difieren en alcance, aplicaci\u00f3n, composici\u00f3n qu\u00edmica y propiedades mec\u00e1nicas.<\/p>\n\t\t\n<style>\n#text-4260399523 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-361203194\">\n\n\t<div id=\"col-1364396428\" 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 Alcance<\/h3>\n<p>ASTM A53 B es una especificaci\u00f3n est\u00e1ndar para tuber\u00edas, acero, negras y sumergidas en caliente, recubiertas de zinc, soldadas y sin costura. Por otro lado, AS\/NZS 1163 especifica los requisitos para secciones huecas de acero conformadas en fr\u00edo con fines estructurales.<\/p>\n<h3>2. Solicitud<\/h3>\n<p>ASTM A53 B es una especificaci\u00f3n general de tuber\u00edas de acero que cubre tuber\u00edas galvanizadas y negras. Est\u00e1 disponible en Tipo S (sin costura), Tipo E (ERW, costura longitudinal soldada por resistencia el\u00e9ctrica) y Tipo F (soldada en horno). AS\/NZS 1163 se utiliza en una variedad de aplicaciones que incluyen pilotaje de tuber\u00edas, fabricaci\u00f3n, petr\u00f3leo y gas, bolardos, postes de se\u00f1alizaci\u00f3n, perforaci\u00f3n de pozos de agua y muchas m\u00e1s.<\/p>\n<h3>3. Composiciones qu\u00edmicas<\/h3>\n<p>AS\/NZS 1163 y ASTM A53 B tienen diferentes composiciones qu\u00edmicas. Por ejemplo, AS\/NZS 1163 C250 tiene un contenido m\u00e1ximo de carbono de 0,12%, mientras que ASTM A53 B tiene un contenido 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-242160506\">\n\n\t<div id=\"col-56259004\" 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. Propiedades mec\u00e1nicas<\/h3>\n<p>Las propiedades mec\u00e1nicas de AS\/NZS 1163 y ASTM A53 B tambi\u00e9n difieren. Por ejemplo, AS\/NZS 1163 C250 tiene una resistencia a la tracci\u00f3n de 320 MPa y un l\u00edmite el\u00e1stico de 250 MPa, mientras que ASTM A53 B tiene una resistencia a la tracci\u00f3n superior a 415 MPa y un l\u00edmite el\u00e1stico de al 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_627459387 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>","protected":false},"excerpt":{"rendered":"<p>La norma AS\/NZS 1163 define los requisitos que deben cumplir los perfiles huecos de acero estructural utilizados en proyectos de construcci\u00f3n e ingenier\u00eda en Australia y Nueva Zelanda. Garantiza que estos perfiles se fabrican y prueban para cumplir las normas de calidad y rendimiento necesarias.<\/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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