{"id":7404,"date":"2026-03-17T15:47:10","date_gmt":"2026-03-17T07:47:10","guid":{"rendered":"https:\/\/www.cjmsteelgroup.com\/?p=7404"},"modified":"2026-03-17T15:48:30","modified_gmt":"2026-03-17T07:48:30","slug":"astm-a572-steel-grades-equivalents-properties-buying-guide","status":"publish","type":"post","link":"https:\/\/www.cjmsteelgroup.com\/es\/astm-a572-steel-grades-equivalents-properties-buying-guide.html","title":{"rendered":"Explicaci\u00f3n de los grados de acero ASTM A572: Propiedades mec\u00e1nicas, equivalentes internacionales y gu\u00eda de compra"},"content":{"rendered":"<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-db344023675a15ab4a6b4a598af408c0\"><strong>1. Introducci\u00f3n: Por qu\u00e9 es importante la norma ASTM A572<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-c0c58f372ff25eb637a4b15ac0edf7bd\">Para compradores de todo el mundo, <strong>Acero ASTM A572<\/strong> representa un material estructural vers\u00e1til y rentable que se utiliza en puentes, edificios, maquinaria e industrias de fabricaci\u00f3n. Combina <strong>alta resistencia, buena soldabilidad y bajo peso<\/strong>por lo que es la opci\u00f3n preferida de los peque\u00f1os y medianos fabricantes y almacenistas que atienden a los mercados de acero estructural.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-2dc12524b03997edece1c4721a428285\">A diferencia de los aceros dulces gen\u00e9ricos, <strong>A572 Grados 42-65<\/strong> ofrecen flexibilidad para diferentes requisitos mec\u00e1nicos, y comprender estas diferencias le ayuda a tomar decisiones de compra m\u00e1s inteligentes.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-a1df4b652e65560bf02d3e92d388ed00\">As a global supplier, CJM Steel works closely with distributors and project buyers to match A572 grades with their regional equivalents and performance needs.<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"937\" height=\"622\" src=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/cjm-warehouse-a572-steel-plate-stock.jpg\" alt=\"Large inventory of ASTM A572 steel plates neatly stacked in a warehouse, ready for immediate shipment.\" class=\"wp-image-7406\" style=\"width:600px\" srcset=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/cjm-warehouse-a572-steel-plate-stock.jpg 937w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/cjm-warehouse-a572-steel-plate-stock-300x199.jpg 300w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/cjm-warehouse-a572-steel-plate-stock-768x510.jpg 768w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/cjm-warehouse-a572-steel-plate-stock-18x12.jpg 18w\" sizes=\"auto, (max-width: 937px) 100vw, 937px\" \/><figcaption class=\"wp-element-caption\">CJM almac\u00e9n a572 stock de chapa de acero<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-ea2c05b271988874316c7101caae2f16\"><strong>2. A572 Steel Properties and Yield Strength<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-055a01d1741ce5b942d5cd448f4e247a\"><strong>ASTM A572 steel properties<\/strong> vary by grade, with yield strength ranging from 290 MPa to 450 MPa. Among them, Grade 50 is the most widely used due to its balance of strength, weldability, and availability.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>Grado<\/strong><\/td><td><strong>L\u00edmite el\u00e1stico (MPa)<\/strong><\/td><td><strong>Resistencia a la tracci\u00f3n (MPa)<\/strong><\/td><td><strong>Aplicaci\u00f3n t\u00edpica<\/strong><\/td><td><strong>Informaci\u00f3n sobre contrataci\u00f3n p\u00fablica<\/strong><\/td><\/tr><tr><td><strong>A572 Gr.42<\/strong><\/td><td>290<\/td><td>415<\/td><td>Estructuras generales, fabricaci\u00f3n de baja tensi\u00f3n<\/td><td>Adecuado para peque\u00f1os fabricantes que sustituyen el A36 con mayor resistencia.<\/td><\/tr><tr><td><strong>A572 Gr.50<\/strong><\/td><td>345<\/td><td>450-620<\/td><td>Vigas, pilares, placas, puentes<\/td><td>El grado m\u00e1s com\u00fan a nivel mundial. S355JR y Q345B son intercambiables en la mayor\u00eda de las aplicaciones.<\/td><\/tr><tr><td><strong>A572 Gr.55<\/strong><\/td><td>380<\/td><td>485-620<\/td><td>Piezas de maquinaria, estructuras offshore<\/td><td>Disponibilidad limitada; aseg\u00farese de que el n\u00famero de calor\u00edas sea constante al mezclar lotes.<\/td><\/tr><tr><td><strong>A572 Gr.60<\/strong><\/td><td>415<\/td><td>485-650<\/td><td>Vigas estructurales pesadas, piezas de torres e\u00f3licas<\/td><td>Ideal cuando Gr.50 puede ser insuficiente pero Gr.65 es excesivo.<\/td><\/tr><tr><td><strong>A572 Gr.65<\/strong><\/td><td>450<\/td><td>485-655<\/td><td>Puentes de alta carga, gr\u00faas<\/td><td>S460N es muy similar, pero puede requerir pruebas adicionales para proyectos cr\u00edticos.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-b8a0c103442b738b82c1b289d6d3e901\"><strong>3. Composici\u00f3n qu\u00edmica del acero A572<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-53b38bd31c4af1368c7a26a5a73bf1b8\">En <strong>propiedades mec\u00e1nicas<\/strong> de los aceros A572 var\u00edan ligeramente de un grado a otro, pero comparten un objetivo de dise\u00f1o com\u00fan: <strong>alta relaci\u00f3n rendimiento-peso<\/strong> y un rendimiento constante en soldadura y conformado.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Grado<\/strong><\/td><td><strong>C (%)<\/strong><\/td><td><strong>Mn (%)<\/strong><\/td><td><strong>Si (%)<\/strong><\/td><td><strong>P m\u00e1x (%)<\/strong><\/td><td><strong>S m\u00e1x (%)<\/strong><\/td><\/tr><tr><td><strong>A572 Gr.50<\/strong><\/td><td>0.23<\/td><td>1.35<\/td><td>0.40<\/td><td>0.040<\/td><td>0.050<\/td><\/tr><tr><td><strong>A572 Gr.60<\/strong><\/td><td>0.26<\/td><td>1.50<\/td><td>0.40<\/td><td>0.040<\/td><td>0.050<\/td><\/tr><tr><td><strong>A572 Gr.65<\/strong><\/td><td>0.26<\/td><td>1.65<\/td><td>0.40<\/td><td>0.040<\/td><td>0.050<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e8e5f2aba77c53d275a528e94391dcb4\"><em>*Composici\u00f3n para Gr.42 y Gr.55 no mostrada; Gr.42 tiene menor C\/Mn, Gr.55 es intermedio. Datos completos disponibles previa solicitud.<\/em><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-82b602ee3435b625d45a6c9b6c681a7a\"><strong>4. Grados equivalentes ASTM A572 y normas internacionales (EN, JIS, IS)<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-db508343c7b1d2eded876f167fe28af3\">Aunque la equivalencia t\u00e9cnica es importante, el aprovisionamiento inteligente requiere algo m\u00e1s que la mera coincidencia de normas. La tabla siguiente a\u00f1ade <strong>Informaci\u00f3n sobre contrataci\u00f3n p\u00fablica<\/strong>-una nota r\u00e1pida de expertos para comerciantes y fabricantes que decidan qu\u00e9 calidades internacionales adquirir.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>ASTM<\/strong><\/td><td><strong>ES<\/strong><\/td><td><strong>JIS<\/strong><\/td><td><strong>IS<\/strong><\/td><td><strong>Informaci\u00f3n sobre contrataci\u00f3n p\u00fablica<\/strong><\/td><\/tr><tr><td><strong>A572 Gr.42<\/strong><\/td><td>S275JR<\/td><td>SM400A<\/td><td>IS 2062 E250<\/td><td>Sustituto ideal de nivel b\u00e1sico para grados estructurales suaves.<\/td><\/tr><tr><td><strong>A572 Gr.50<\/strong><\/td><td>S355JR \/ Q345B<\/td><td>SM490A<\/td><td>IS 2062 E350<\/td><td>El m\u00e1s popular para proyectos de exportaci\u00f3n; disponibilidad de existencias en todo el mundo.<\/td><\/tr><tr><td><strong>A572 Gr.60<\/strong><\/td><td>S420N<\/td><td>SM490YA<\/td><td>IS 2062 E410<\/td><td>Se utiliza cuando se necesita un l\u00edmite el\u00e1stico m\u00e1s alto para vigas estructurales.<\/td><\/tr><tr><td><strong>A572 Gr.65<\/strong><\/td><td>S460N<\/td><td>SM490YB<\/td><td>IS 2062 E450<\/td><td>Compruebe las especificaciones del proyecto antes de proceder a la sustituci\u00f3n: parecidas pero no id\u00e9nticas.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-2aee0818a7d8c9ba671a0194f07ceec7\"><strong>5. Aplicaciones del acero A572 en proyectos estructurales y de fabricaci\u00f3n<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-f3892feb06308797e618c1dad08e7901\"><strong>Aceros A572<\/strong> se utilizan ampliamente en:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-6ef151deb68de99a54a3df66edc721f6\"><strong>Fabricaci\u00f3n estructural:<\/strong> vigas, pilares, armazones<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-bc6a98aefa3c721e1147c3d9c2c8b827\"><strong>Componentes de puentes y carreteras<\/strong><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-1586e277a634ed50ba2093dafec0bd75\"><strong>Estructuras de torres e\u00f3licas y centrales el\u00e9ctricas<\/strong><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-c553d6040edd1c89f24622488c0a8ae8\"><strong>Maquinaria y equipos de construcci\u00f3n<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-75aa9b144b37871651f932c87455e33b\">For bridge and highway structures, ASTM A572 is often compared with A709 steel due to differences in toughness requirements and weathering performance. For a detailed comparison and grade breakdown, see our <a href=\"https:\/\/www.cjmsteelgroup.com\/es\/astm-a709-steel-plate-grades-bridge-weathering-application.html\/\" target=\"_blank\" rel=\"noopener\" title=\"ASTM A709 steel plate grades and applications guide\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">ASTM A709 steel plate grades and applications guide<\/mark><\/a>.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-168ad5491ae2e8b5b3b8cfcc880494a3\">If you are sourcing for structural fabrication or project supply, CJM Steel provides <a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a572-carbon-steel-plate.html\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">A572 steel plate supplier<\/mark><\/a> services with ready stock in Grade 50 and custom cutting options for export projects.<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/07\/carbon-steel-plates-loading-ship-hold-1024x768.jpg\" alt=\"A572 steel for global sea freight export at Tianjin port.\" class=\"wp-image-6991\" style=\"width:600px\" srcset=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/07\/carbon-steel-plates-loading-ship-hold-1024x768.jpg 1024w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/07\/carbon-steel-plates-loading-ship-hold-300x225.jpg 300w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/07\/carbon-steel-plates-loading-ship-hold-768x576.jpg 768w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/07\/carbon-steel-plates-loading-ship-hold-16x12.jpg 16w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/07\/carbon-steel-plates-loading-ship-hold.jpg 1440w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Acero CJM listo para su env\u00edo<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-b8de7443b31f956971fb32a6826ae0ec\"><strong>6. Para comerciantes y fabricantes mundiales<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-68c889a013eb4966c107ce7b7f8ad970\">Tanto si eres un <strong>almacenista, empresa comercial o taller de transformaci\u00f3n<\/strong>Los aceros A572 proporcionan flexibilidad para la distribuci\u00f3n en m\u00faltiples mercados.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-cafa201c6204c03d738dd5394d043b81\">En <strong>Acero CJM<\/strong>mantenemos <strong>stock regular para A572 Gr.50 \/ S355JR<\/strong>con laminado a medida disponible para calidades superiores como Gr.60 y Gr.65. Nuestro equipo ayuda a los clientes a <strong>equivalentes regionales (EN, IS, JIS)<\/strong> y garantiza el cumplimiento sin problemas de las especificaciones del proyecto.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-5061fb3b685f92634249ec83de9ea723\">check our dedicated pages:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a572-carbon-steel-plate.html\/\" target=\"_blank\" rel=\"noopener\" title=\"Placa de acero al carbono A572 \/ S355JR\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">A572 Carbon Steel Plate<\/mark><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a572-carbon-steel-coil.html\/\" target=\"_blank\" rel=\"noopener\" title=\"A572 (S355JR Equivalent) Carbon Steel Coil Supplier\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">A572 Carbon Steel Coil<\/mark><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a572-s355jr-round-steel-bar.html\/\" target=\"_blank\" rel=\"noopener\" title=\"Barra redonda A572 \/ S355JR\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">A572 Round Steel Bar<\/mark><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/astm-a283-a572-diamond-tread-checkered-steel-plate.html\/\" target=\"_blank\" rel=\"noopener\" title=\"Placa de acero ASTM A283 \/ A572 Diamond &amp; Tread Checkered\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">ASTM A572 Diamond &amp; Tread Checkered Steel Plate<\/mark><\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-9f010b7dc81988740d479e837b3f24dc\"><strong>7. Resumen: Tomar la decisi\u00f3n correcta en materia de contrataci\u00f3n p\u00fablica<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-3a900e0c30a8b27e1deea4553ec1c8bb\"><strong>A572 Gr.50<\/strong> = 80% de los proyectos estructurales mundiales.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-2bc01ed15c5c546e8cb4c1f626825274\"><strong>A572 Gr.60 y Gr.65<\/strong> = para aplicaciones de alta carga en las que el l\u00edmite el\u00e1stico es importante.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-d462b07cc7e5ca80f126d038ddf20a3a\"><strong>S355JR \/ Q345B<\/strong> = alternativas m\u00e1s pr\u00e1cticas para la contrataci\u00f3n internacional.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-f8e7daf8287db2f7292f1e126ba7c42e\">Para los compradores, la clave no est\u00e1 s\u00f3lo en las cifras, sino en saber <strong>qu\u00e9 grado se ajusta a sus objetivos de coste, certificaci\u00f3n y rendimiento del proyecto.<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>1. Introduction: Why ASTM A572 Matters For global buyers, ASTM A572 steel represents a versatile, cost-efficient structural material used across bridges, buildings, machinery, and fabrication industries. It combines high strength, good weldability, and low weight, making it a preferred choice for small and mid-sized fabricators and stockists serving structural steel markets. Unlike generic mild steels, [&hellip;]<\/p>","protected":false},"author":1,"featured_media":7406,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-7404","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"metadata":{"_edit_lock":["1773734044:1"],"_thumbnail_id":["7406"],"_edit_last":["1"],"_aioseo_title":["ASTM A572 Steel Grades &amp; Properties | Equivalents (Gr.42\u201365)"],"_aioseo_description":["ASTM A572 steel grades (Gr.42\u201365), properties, yield strength and equivalents. Practical guide for sourcing and global projects."],"_aioseo_keywords":[""],"_aioseo_og_title":[null],"_aioseo_og_description":[null],"_aioseo_og_article_section":[""],"_aioseo_og_article_tags":[""],"_aioseo_twitter_title":[null],"_aioseo_twitter_description":[null],"themepark_seo_title":["ASTM A572 Steel Grades & Properties | Equivalents (Gr.42\u201365)"],"themepark_seo_description":["ASTM A572 steel grades (Gr.42\u201365), properties, yield strength and equivalents. Practical guide for sourcing and global projects."],"themepark_seo_keyword":["A572 steel, A572 grades, A572 mechanical properties, A572 equivalent, A572 Gr 50, A572 Gr 65"],"catce":["sidebar-widgets4"],"views":["5057"],"_wp_old_date":["2025-10-09","2025-12-17"]},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.6.0 - aioseo.com -->\n\t\t<meta name=\"description\" content=\"ASTM A572 steel grades (Gr.42\u201365), properties, yield strength and equivalents. 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