{"id":7349,"date":"2026-03-06T14:48:19","date_gmt":"2026-03-06T06:48:19","guid":{"rendered":"https:\/\/www.cjmsteelgroup.com\/?p=7349"},"modified":"2026-03-06T14:48:25","modified_gmt":"2026-03-06T06:48:25","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, and S355 Structural Steel Comparison and Properties"},"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-3950e8a43579e35a9c09d5526f06a481\">Structural steel grades <strong>S235, S275 y S355<\/strong> are defined under the <strong>Norma EN 10025<\/strong> y representan los materiales m\u00e1s utilizados en edificios, puentes, estructuras mar\u00edtimas y maquinaria pesada.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-be19ea405dca0c6d16f339b440213466\">This guide compares the 3 most common EN 10025 structural steel grades \u2014 S235, S275, and S355 \u2014 including yield strength, tensile strength, chemical composition, and international equivalents. It focuses on technical performance rather than procurement or cost.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>S235, S275, and S355 Structural Steels Grades Overview<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>Grado<\/strong><\/td><td><strong>M\u00ednimo l\u00edmite el\u00e1stico (MPa)<\/strong><\/td><td><strong>Typical Suffix<\/strong><\/td><td><strong>Prueba de impacto<\/strong><\/td><\/tr><tr><td><strong>S235<\/strong><\/td><td>235<\/td><td>JR<\/td><td>Room temperature<\/td><\/tr><tr><td><strong>S275<\/strong><\/td><td>275<\/td><td>JR<\/td><td>Room temperature<\/td><\/tr><tr><td><strong>S355<\/strong><\/td><td>355<\/td><td>JR \/ J2 \/ NL<\/td><td>Room \/ Low temperature<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-a290358293fbf29f8c5e17b7b61b6a82\">El sistema de designaci\u00f3n de la norma EN 10025 es sencillo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-8791c5a9eee996dad66ac8bc26d1b77d\">La carta <strong>\"S\"<\/strong> significa <strong>acero estructural<\/strong>.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-b761dbabfd87e0847bceabe7a96efbb8\">El n\u00famero representa el <strong>l\u00edmite el\u00e1stico m\u00ednimo<\/strong> en N\/mm\u00b2.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-2b49b19614b094b2b84bb142a30e403c\">Suffixes like <strong>JR, J2, NL<\/strong> indicate <strong>impact toughness requirements<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-b9285fdad30bc1fe99030fec7a8283f2\"><em><strong>\ud83d\udc49 For more details on suffixes like JR, J2, and NL, see our guide: <a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s355jr-s355j2-s355nl-steel-difference.html\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S355JR \/ S355J2 \/ S355NL - \u00bfCu\u00e1l es la diferencia?<\/mark><\/a><\/strong><\/em><\/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 structural steel in construction and bridges\" 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 vs S275 vs S355 acero estructural<\/figcaption><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Mechanical Properties Comparison of S235, S275 and S355 Steel<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-6556f9c7b8fdc8c62ffc512c299c06f2\">Mechanical performance varies among S235\/S275\/S355 primarily in <strong>yield strength (ReH) and tensile strength (Rm)<\/strong>. Yield strength is the primary classification basis under EN 10025, while tensile strength provides an additional reference for overall mechanical performance.<\/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-444e354f177ee70189cede45e984d501\"><strong>1. Yield Strength of S235, S275 and S355 (EN 10025)<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-113e8c72b31a032b7e9d67a336222798\">According to EN 10025-2, the minimum yield strength (fy) of structural steel grades S235, S275, and S355 is defined as 235 MPa, 275 MPa, and 355 MPa respectively for plate thickness up to 16 mm. These values represent standard-specified minimums rather than guaranteed test results for every heat. As thickness increases, the minimum required yield strength decreases in stepwise ranges as specified in the standard.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-770192e8e0496d21b01a8eb3116636fd\">This stepwise increase in fy explains the fundamental structural difference between S235, S275, and S355, with S355 preferred for heavy load-bearing or dynamically loaded structures, while S235 and S275 are more commonly used for light and medium structural applications.<\/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-8b0c32d868e9d0b794349454293f30e6\"><strong>2. Quick Comparison Table: S235 vs S275 vs S355 Mechanical Properties<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-35947833c017c22d761253ad7a5e47a8\">The table below compares the key mechanical properties of S235, S275, and S355 structural steel, including yield strength (ReH), tensile strength (Rm), elongation, impact resistance, weldability, and formability.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Propiedad<\/strong><\/td><td><strong>S235<\/strong><\/td><td><strong>S275<\/strong><\/td><td><strong>S355<\/strong><\/td><\/tr><tr><td><strong>L\u00edmite el\u00e1stico (MPa)<\/strong><\/td><td>235<\/td><td>275<\/td><td>355<\/td><\/tr><tr><td><strong>Resistencia a la tracci\u00f3n (MPa)<\/strong><\/td><td>360-510<\/td><td>370-530<\/td><td>470-630<\/td><\/tr><tr><td><strong>Alargamiento (%)<\/strong><\/td><td>\u226526<\/td><td>\u226523<\/td><td>\u226522<\/td><\/tr><tr><td><strong>Resistencia a los impactos<\/strong><\/td><td>B\u00e1sico<\/td><td>Mejorado<\/td><td>Excelente, apto para bajas temperaturas<\/td><\/tr><tr><td><strong>Soldabilidad<\/strong><\/td><td>Excelente<\/td><td>Excelente<\/td><td>Bien<\/td><\/tr><tr><td><strong>Formabilidad<\/strong><\/td><td>Alta<\/td><td>Moderado<\/td><td>Baja<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Composici\u00f3n qu\u00edmica de S235, S275 y S355 (comparaci\u00f3n de C y Mn)<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-cac460bbc458531481a4195fffa3bea7\">La diferencia en el l\u00edmite el\u00e1stico procede principalmente del <strong>contenido de carbono y manganeso<\/strong>.<\/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>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-medium-font-size\"><strong><strong>S235, S275 y S355<\/strong><\/strong> <strong>Equivalentes materiales<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-f34c8d9d3dd512f4339149303cff9e15\">Below is a simplified equivalence chart for S235, S275, and S355 steel:<\/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><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Key Technical Differences Between S235, S275 and S355 Steel<\/strong><\/h2>\n\n\n\n<p><strong>1.Strength: <\/strong>S355 &gt; S275 &gt; S235 in both yield and tensile strength<\/p>\n\n\n\n<p><strong>2.Structural Load Capacity:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S235 \u2192 light structures<\/li>\n\n\n\n<li>S275 \u2192 medium-load components<\/li>\n\n\n\n<li>S355 \u2192 heavy-duty structures (bridges, cranes, machinery)<\/li>\n<\/ul>\n\n\n\n<p><strong>3.Weldability: <\/strong>All grades offer good weldability<\/p>\n\n\n\n<p><strong>4.Toughness \/ Sub-Grades: <\/strong>JR \u2192 J0 \u2192 J2, increasing energy absorption (Charpy impact)<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Aplicaciones del acero estructural S235 \/ S275 \/ S355<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-35f8fd2e30e70404326bad7671286356\">Elegir entre <strong>S235, S275 y S355<\/strong> depende tanto de los requisitos estructurales como del entorno del proyecto.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-pale-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-9989ddad195b70fcdde5e4e766193d58\"><strong>S235 - Para estructuras ligeras y fabricaci\u00f3n general<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Frames, fences, containers, small workshops<\/li>\n\n\n\n<li>High weldability and formability<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-35ae2035ceaf6c91ab909ceefb4d815e\"><strong>\ud83d\udc49 Producto relacionado: <\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a36-q235-s235jr-carbon-steel-coil.html\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S235JR Carbon Steel Coil<\/mark><\/a><\/strong><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a36-q235-s235jr-carbon-steel-plate.html\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S235JR Carbon Steel Plate<\/mark><\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/en-10219-s235-welded-steel-pipe.html\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S235 Welded Steel Pipe<\/mark><\/strong><\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-pale-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-99993d8941ff0299a70cd74448a04942\"><strong>S275 - Para estructuras de resistencia media<\/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-4e70b767435542a487d2f8e90363d88d\">Commercial buildings, bridges, industrial machinery bases<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-6ad815074af80d04cb994c80ae40955c\">Balanced strength, ductility, and price<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-pale-cyan-blue-background-color has-text-color has-background has-link-color wp-elements-76cd254a72f7ede6b970c044a13268ac\"><strong>S355 - Para cargas pesadas o din\u00e1micas<\/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-9c919502569f1599a3f30726f4c1fa56\">Bridges, offshore platforms, wind towers, high-rise structures<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-50881cbc5dd1cbf597fbe82d523243dc\">Superior yield strength and impact toughness, especially at low temperatures<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-35ae2035ceaf6c91ab909ceefb4d815e\"><strong>\ud83d\udc49 Producto relacionado: <\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s355jr-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\">S355JR Carbon Steel Plate<\/mark><\/a><\/strong><\/li>\n\n\n\n<li><strong><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a572-carbon-steel-coil.html\/\" target=\"_blank\" rel=\"noopener\" title=\"S355JR Carbon Steel Coil\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S355JR Carbon Steel Coil<\/mark><\/a><\/strong><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s355j2-s355jr-wind-tower-steel-plate.html\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Placa de acero para torre e\u00f3lica S355J2 \/ S355JR<\/mark><\/strong><\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-9ac00cf961d1ea846fe5a532228b76c6\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>C\u00f3mo elegir entre los tipos de acero S235, S275 y S355<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Tipo de proyecto<\/strong><\/td><td><strong>Grado recomendado<\/strong><\/td><td><strong>Raz\u00f3n<\/strong><\/td><\/tr><tr><td>Estructura ligera, estructura de almac\u00e9n<\/td><td><strong>S235<\/strong><\/td><td>F\u00e1cil fabricaci\u00f3n, menor coste<\/td><\/tr><tr><td>Estructura comercial o puente<\/td><td><strong>S275<\/strong><\/td><td>Mayor capacidad de carga, coste moderado<\/td><\/tr><tr><td>Construcci\u00f3n en alta mar o en altura<\/td><td><strong>S355<\/strong><\/td><td>Alta resistencia, excelente tenacidad<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-c87e1664f611e79f8b74b4cc4751f044\">When engineers compare structural grades such as S235, S275, and S355, environmental factors like wind load, vibration, and temperature conditions must be considered.<\/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-19a15c1ac66c97291f6048246c625be4\"><strong>Q: What is the yield strength of S235 steel according to EN 10025?<\/strong><br><strong>A:<\/strong> According to EN 10025-2, the minimum yield strength of S235 structural steel is <strong>235 MPa<\/strong> for plate thickness up to 16 mm. For thicker plates, the specified minimum yield strength decreases stepwise depending on thickness ranges defined in the standard.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-e2e1efb3f514e50d55263bc3f8719342\"><strong>Q: What is the yield strength of S275 steel in MPa?<\/strong><br><strong>A:<\/strong> The minimum yield strength of S275 steel is <strong>275 MPa<\/strong> for thickness up to 16 mm, as specified in EN 10025-2. For greater thicknesses, the minimum yield strength is reduced according to the standard\u2019s thickness-dependent limits.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-07ad9f87fff314aaaf5acac5dd139ba9\"><strong>Q: What is the tensile strength of S275 steel?<\/strong><br><strong>A: <\/strong>S275 typically offers <strong>370\u2013530 MPa<\/strong> tensile strength, depending on thickness.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-874717e2e883dad88c00c0ecda24c11a\"><strong>Q: What are the chemical composition limits for these grades?<\/strong><br><strong>A: <\/strong>The main variations involve carbon and manganese: S235 (lowest), S355 (highest), reflecting their strength differences.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-c4825ac6c76c057f2c832f179a2a0b6e\"><strong>Q: What are the ASTM, JIS, and GB equivalents for S355?<\/strong><br><strong>A: <\/strong>ASTM A572 Grade 50, JIS SM490, and GB Q345B.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-8c0424467071eed28ab79f5d2d52bdab\"><strong>Q: What are the differences between S275 and S355?<\/strong><br><strong>A:<\/strong> S355 has higher yield\/tensile strength, better impact resistance, and is suitable for heavy-duty or cold-environment applications.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-987b5a5b8fa801dc57547f00f30715df\"><strong>Q: Are S235, S275, and S355 weldable?<\/strong><br><strong>A: <\/strong>Yes. All three grades are weldable; S235 is generally easiest to fabricate.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-49afc305daf7f347962b5f67a6f18cc3\"><strong>Q: Is S235 stainless steel?<\/strong><br><strong>A: <\/strong>No. S235 is not stainless steel. It is a carbon structural steel grade defined in EN 10025. Stainless steels contain significant chromium content (usually above 10.5%), while S235 is a low-carbon structural steel mainly used for general construction and fabrication.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading has-medium-font-size\"><strong>Conclusi\u00f3n<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-4f0a995a0993020864b4a3a5637bd346\">A la hora de elegir entre <strong>S235 \/ S275 \/ S355<\/strong>La elecci\u00f3n de la mejor calidad depende de los requisitos de resistencia del proyecto, del presupuesto y del plazo de entrega.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-40d007fdaabab21bd6a86052fa367353\"><strong>S235<\/strong> - Econ\u00f3mico, f\u00e1cil de fabricar.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-778acc5ec77cee2e86c6c51eefe54485\"><strong>S275<\/strong> - Equilibrio entre rendimiento y coste.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-31f5dcfcab903e8a3250fe89dafa73e9\"><strong>S355<\/strong> - Calidad superior para estructuras exigentes.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-cbf7a7473b840239795c3a48196bd365\"><em><strong>\ud83d\udc49 \u00bfBusca un suministro fiable? <a href=\"https:\/\/www.cjmsteelgroup.com\/es\/contact-us.html\/\" target=\"_blank\" rel=\"noopener\" title=\"P\u00f3ngase en contacto con nosotros\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Contacte con nuestro equipo<\/mark><\/a> para m\u00e1s detalles.<\/strong><\/em><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction Structural steel grades S235, S275, and S355 are defined under the EN 10025 standard and represent the most widely used materials in buildings, bridges, offshore structures, and heavy machinery. This guide compares the 3 most common EN 10025 structural steel grades \u2014 S235, S275, and S355 \u2014 including yield strength, tensile strength, chemical composition, [&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":["1772780250:1"],"_edit_last":["1"],"_aioseo_title":["S235 vs S275 vs S355 Steel Comparison Table | Strength, Properties &amp; Equivalents"],"_aioseo_description":["Compare S235, S275, and S355 steel grades. See yield strength, tensile strength, chemical composition, and ASTM\/JIS\/GB equivalents in onecomparison table."],"_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 vs S275 vs S355 Steel Comparison Table | Strength, Properties & Equivalents"],"themepark_seo_description":["Compare S235, S275, and S355 steel grades. See yield strength, tensile strength, chemical composition, and ASTM\/JIS\/GB equivalents in one comparison table."],"themepark_seo_keyword":["s235 steel, s275 steel, s355 steel, s235 yield strength, s275 yield strength, s355 yield strength"],"catce":["sidebar-widgets4"],"views":["13665"],"_thumbnail_id":["7816"],"_wp_old_date":["2025-12-09","2026-01-23"]},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.6.0 - aioseo.com -->\n\t\t<meta name=\"description\" content=\"Compare S235, S275, and S355 steel grades. 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