{"id":7349,"date":"2026-09-21T11:24:27","date_gmt":"2026-09-21T03:24:27","guid":{"rendered":"https:\/\/www.cjmsteelgroup.com\/?p=7349"},"modified":"2026-09-21T11:24:32","modified_gmt":"2026-09-21T03:24:32","slug":"s235-s275-s355-structural-steel-comparison-and-properties","status":"publish","type":"post","link":"https:\/\/www.cjmsteelgroup.com\/es\/s235-s275-s355-structural-steel-comparison-and-properties.html","title":{"rendered":"S235, S275 &amp; S355 Steel Properties and Equivalent Grades"},"content":{"rendered":"<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Introducci\u00f3n<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-de9bc2ff28b2f31e5f4c293da28720f9\">S235, S275 and S355 are structural steel grades defined under EN 10025, with different levels of yield strength, tensile strength and chemical composition.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-1669ed6b21ff4dba0a95f173d7a8b1d9\">This guide provides a clear overview of <strong>S235 S275 S355 steel properties<\/strong>, including yield strength, tensile strength, chemical composition, and <strong>equivalent grades (ASTM, JIS, GB)<\/strong>. The focus is on technical data and standardized performance values.<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"328\" src=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/S235-S275-S355-structural-steel-1-1024x560-1.jpg\" alt=\"S235 S275 S355 steel plate steel coil steel bar steel pipe products overview\" class=\"wp-image-7816\" style=\"width:700px\" srcset=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/S235-S275-S355-structural-steel-1-1024x560-1.jpg 600w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/S235-S275-S355-structural-steel-1-1024x560-1-300x164.jpg 300w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/S235-S275-S355-structural-steel-1-1024x560-1-18x10.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption class=\"wp-element-caption\">S235 S275 S355 steel plate, steel coil, steel bar and steel pipe product forms overview for structural steel applications.<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>S235 S275 S355 Steel Properties Quick Check Table<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-3b36324890e83639bfed8b3186015325\">The table below summarizes the most searched <strong>S235, S275 and S355 steel properties<\/strong>, including yield strength, and tensile strength.<\/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>Alargamiento (%)<\/strong><\/td><\/tr><tr><td><strong>S235<\/strong><\/td><td>235<\/td><td>360-510<\/td><td>\u226526<\/td><\/tr><tr><td><strong>S275<\/strong><\/td><td>275<\/td><td>370-530<\/td><td>\u226523<\/td><\/tr><tr><td><strong>S355<\/strong><\/td><td>355<\/td><td>470-630<\/td><td>\u226522<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-0d6c893dc905a41e1ba9fae92478ecee\">These values represent standard minimum requirements according to EN 10025-2 for thickness up to 16 mm.<\/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-53521c4cc3f6c7f7a69011c668d3950d\"><strong>S235 S275 S355 Steel Equivalent Grades (ASTM, JIS, GB)<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-d0aa79d4d768ed6e6cc25de9efbf9768\">Comprender <strong>S235, S275 and S355 steel equivalents<\/strong> is essential for international procurement and cross-standard material selection.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Norma EN<\/strong><\/td><td><strong>Equivalente ASTM<\/strong><\/td><td><strong>Equivalente JIS<\/strong><\/td><td><strong>Equivalente GB<\/strong><\/td><\/tr><tr><td><strong>S235JR<\/strong><\/td><td>ASTM A36<\/td><td>SS400<\/td><td>Q235B<\/td><\/tr><tr><td><strong>S275JR<\/strong><\/td><td>ASTM A36 \/ ASTM A529<\/td><td>SM400A \/ B<\/td><td>Q275<\/td><\/tr><tr><td><strong>S355JR<\/strong><\/td><td>ASTM A572<\/td><td>SM490A \/ B<\/td><td>Q345B<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-24b28846470377054c6b3aa83b1c1c54\">These equivalents are approximate and should be verified against specific project requirements and standards.<\/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-35f7d84199f480702637f60961ee3e3c\"><strong>S235 S275 S355 Steel Mechanical Properties (EN 10025)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-b17a0b61f25004b123e1a47811a14c89\"><strong>1. S235, S275 and S355 Yield Strength<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-478808536b33b0ababbae8ccba84ef4d\">En <strong>yield strength of S235, S275 and S355 steel<\/strong> is the primary classification basis under EN 10025:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-9e3e67816f342fd4e6b4a80bc8524330\">S235 \u2192 235 MPa<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-54ab5bb4f4406ee955c893cdb1b042de\">S275 \u2192 275 MPa<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-3b4257b4c7a3efac6ae4cc7584351b17\">S355 \u2192 355 MPa<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-f4d40fab8813f7b96b5dad653067830b\">For thicker plates, the minimum yield strength decreases according to standard thickness ranges.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-3bdf81ad389775da932ebb4b5d9acdf0\"><strong>2. S235, S275 and S355 Tensile Strength<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-8ae26bc3f46f6c30165b545deef3e60d\">Typical <strong>tensile strength of structural steel grades<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-87092d95c488f2663b3cfd51b23628d4\">S235: 360\u2013510 MPa<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-95b705286751c0386d1ec1bdf72ba31c\">S275: 370\u2013530 MPa<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-17f42cd84db98112e6c16ae02b106063\">S355: 470\u2013630 MPa<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-878365c922523045463790548ca3fe61\">Higher tensile strength indicates better resistance to deformation under load.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-9ec170b8082b98a288f0beff78f6a17f\"><strong>3. Elongation and Weldability of S235, S275 and S355<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-2677a37e09745c39c790ff6c77bfba67\">S235: Highest ductility and excellent weldability<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-35e1e13b13acccea6897b555bf43b3d3\">S275: Balanced ductility and strength<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-601f0d2ddd6e61e666a12c1bb298d05d\">S355: Higher strength with slightly reduced formability<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-be9d42a3714ee9d5486789a71af08317\">All three grades are considered weldable under standard fabrication conditions.<\/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-cffb7097d4a6acdeec3df8965e455b6e\"><strong>Chemical Composition of S235 S275 S355 Steel (C &amp; Mn)<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-01f17e5e0a96c99b48ab09f5d1df6f9d\">The chemical composition of <strong>S235, S275 and S355 steel<\/strong> contributes to their different mechanical properties and weldability.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>Grado<\/strong><\/td><td><strong>Carbono (C %)<\/strong><\/td><td><strong>Manganeso (Mn %)<\/strong><\/td><td><strong>Explicaci\u00f3n<\/strong><\/td><\/tr><tr><td><strong>S235<\/strong><\/td><td>\u22640.17<\/td><td>\u22641.40<\/td><td>Bajo contenido en carbono, excelente soldabilidad, menor resistencia<\/td><\/tr><tr><td><strong>S275<\/strong><\/td><td>\u22640.21<\/td><td>\u22641.50<\/td><td>Carbono y manganeso ligeramente superiores, propiedades equilibradas<\/td><\/tr><tr><td><strong>S355<\/strong><\/td><td>\u22640.24<\/td><td>\u22641.60<\/td><td>Mayores niveles de C y Mn, lo que se traduce en un mayor l\u00edmite el\u00e1stico<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-5c3d0323c78eddb62735867b91bfffdd\">Engineers should note that while increasing C and Mn enhances <strong>l\u00edmite el\u00e1stico<\/strong>, it can slightly reduce weldability.<\/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-6f42302b118f94c86950117829553b5b\"><strong>S235 S275 S355 Steel Properties Summary<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-aef9e0bf58db1f78a02bf009b1f80355\"><strong>1.S235:<\/strong> Lower strength, with a minimum yield strength of 235 MPa and good ductility and weldability.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-80324616c5e92c08c25e7edb005699e2\"><strong>2. S275:<\/strong> Intermediate strength, with a minimum yield strength of 275 MPa and a balanced combination of strength and ductility.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e0c07422ad28052cd3ec198fd11dd52d\"><strong>3.<\/strong> <strong>S355:<\/strong> Higher strength, with a minimum yield strength of 355 MPa and higher load-bearing capacity than S235 and S275.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-cd5e11213acaa5b1b29042da1ef31615\"><em>For a practical understanding of how these grades differ in real projects, including strength comparison, price differences and selection considerations, see our <strong><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s235-vs-s275-vs-s355-steel-buyer-guide.html\/\" target=\"_blank\" rel=\"noopener\" title=\"S235 vs S275 vs S355 steel comparison and selection guide\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S235 vs S275 vs S355 steel comparison and selection guide<\/mark><\/a><\/strong>.<\/em><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e5973d90e6a4a7949c5b4e9cc078dddf\"><em>For a deeper understanding of impact test requirements and the differences between JR, J2 and NL grades, see our <strong><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s355jr-s355j2-s355nl-steel-difference.html\/\" target=\"_blank\" rel=\"noopener\" title=\"S355JR vs S355J2 vs S355NL differences guide\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S355JR vs S355J2 vs S355NL differences guide<\/mark><\/a><\/strong>.<\/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-383c3a5feaf9628dc0d2fcb2e37c0973\"><strong>Preguntas frecuentes<\/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-0e61a612783d41a2914bd12036dfa3e6\"><strong>What are the properties of S355 steel?<\/strong><br>S355 steel has a minimum yield strength of 355 MPa and a typical tensile strength of 470\u2013630 MPa, depending on thickness and grade.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-3b13e1c8806b5a47785334c24de1485f\"><strong>What are the properties of S275 steel?<\/strong><br>S275 steel has a minimum yield strength of 275 MPa and a typical tensile strength of 370\u2013530 MPa, depending on thickness and grade.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-91f70c4c78b6bbb7cb43b45627d007dc\"><strong>What are the properties of S235 steel?<\/strong><br>S235 steel has a minimum yield strength of 235 MPa and a typical tensile strength of 360\u2013510 MPa, with good ductility and weldability.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-df48e8167d50e4cfee5fcd9d174fc838\"><strong>What is the yield strength of S235, S275 and S355 steel in MPa?<\/strong><br>The yield strength is 235 MPa for S235, 275 MPa for S275 and 355 MPa for S355 under EN 10025 for thickness up to 16 mm.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-c90df0407c1972276f2a920c4e42463c\"><strong>What is the equivalent of S355 steel?<\/strong><br>S355 is commonly compared with ASTM A572, JIS SM490 and GB Q345 grades, but the applicable equivalent should be verified against the specific standard and project requirements.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-388982ec0114786e1d32cb72881efc60\"><strong>What is the equivalent of S235 steel?<\/strong><br>S235 is commonly compared with ASTM A36, JIS SS400 and GB Q235B, but these grades should not be treated as automatic one-to-one substitutions.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-83472dc85ff7a7c538a557601a4d91df\"><strong>What are S275 steel equivalent materials?<\/strong><br>S275 steel equivalents include ASTM A36 or A529, SM400 grades and Q275, with comparable structural performance.<\/li>\n<\/ul>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction S235, S275 and S355 are structural steel grades defined under EN 10025, with different levels of yield strength, tensile strength and chemical composition. This guide provides a clear overview of S235 S275 S355 steel properties, including yield strength, tensile strength, chemical composition, and equivalent grades (ASTM, JIS, GB). The focus is on technical data [&hellip;]<\/p>","protected":false},"author":1,"featured_media":7816,"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-7349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"metadata":{"_edit_lock":["1789961279:1"],"_edit_last":["1"],"_aioseo_title":["S235, S275 &amp; S355 Steel: Properties &amp; Equivalent Grades"],"_aioseo_description":["See S235, S275 and S355 steel properties, including yield strength, tensile strength, chemical composition and equivalent grades in ASTM, JIS and GB standards."],"_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":["S235, S275 & S355 Steel: Properties & Equivalent Grades"],"themepark_seo_description":["See S235, S275 and S355 steel properties, including yield strength, tensile strength, chemical composition and equivalent grades in ASTM, JIS and GB standards."],"themepark_seo_keyword":["s355 steel properties, s275 steel properties, s235 steel properties, s355 equivalent, s235 equivalent"],"catce":["sidebar-widgets4"],"views":["38869"],"_thumbnail_id":["7816"],"_wp_old_date":["2025-12-09","2026-01-23","2026-03-06","2026-04-28","2026-06-23","2026-07-21"]},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.6.0 - aioseo.com -->\n\t\t<meta name=\"description\" content=\"See S235, S275 and S355 steel properties, including yield strength, tensile strength, chemical composition and equivalent grades in ASTM, JIS and GB standards.\" \/>\n\t\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t\t<link rel=\"canonical\" href=\"https:\/\/www.cjmsteelgroup.com\/es\/s235-s275-s355-structural-steel-comparison-and-properties.html\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO Pro (AIOSEO) 4.6.0\" \/>\n\t\t<meta property=\"og:locale\" content=\"es_ES\" \/>\n\t\t<meta property=\"og:site_name\" content=\"CJM Steel Group Ltd. -\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"S235, S275 &amp; 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