{"id":7353,"date":"2026-03-06T14:11:10","date_gmt":"2026-03-06T06:11:10","guid":{"rendered":"https:\/\/www.cjmsteelgroup.com\/?p=7353"},"modified":"2026-03-06T14:11:13","modified_gmt":"2026-03-06T06:11:13","slug":"s355jr-s355j2-s355nl-steel-difference","status":"publish","type":"post","link":"https:\/\/www.cjmsteelgroup.com\/es\/s355jr-s355j2-s355nl-steel-difference.html","title":{"rendered":"S355JR \/ S355J2 \/ S355NL - \u00bfCu\u00e1l es la diferencia?"},"content":{"rendered":"<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-b512cd69e49124373cd958e047a33841\"><strong>Descripci\u00f3n de las calidades S355JR, S355J2 y S355NL<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-cb5587cf5f35129f96e7edf7ab0ce520\"><strong>S355JR<\/strong>, <strong>S355J2<\/strong>y <strong>Acero S355NL<\/strong> are among the most commonly used structural steels under EN 10025, especially in construction, machinery, and offshore engineering. They share a minimum <strong>l\u00edmite el\u00e1stico de 355 MPa<\/strong>, while their key differences relate to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-7dfacabc447d3710a33630b50e252c53\"><strong>Ensayo de impacto Charpy con muesca en V<\/strong> requisitos<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-fbd7dd309054a5be2a5d3b7e1d0c5d90\"><strong>Adecuaci\u00f3n a bajas temperaturas<\/strong><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-f55bb9232e938c5b87ff2c5e14299b9f\"><strong>Tratamiento t\u00e9rmico \/ condiciones de normalizaci\u00f3n<\/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-5f594aff37332209c2c42939849b4cd5\">Esta gu\u00eda compara <strong>S355JR vs S355J2<\/strong>, <strong>S355J2 vs S355NL<\/strong>, and their <strong>materiales equivalentes<\/strong>, helping engineers and buyers select the correct grade for global procurement.<\/p>\n\n\n\n<p><\/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-2185c525185ec2b580e5e2c76e22251b\"><strong>S355JR vs S355J2 vs S355NL \u2013 Equivalent Material Comparison<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e14709fe616b7ee5566977986f5514fd\">When sourcing materials across regions, buyers often need to understand how European grades relate to other standards. To support cross-standard procurement, the following table summarizes the closest equivalents of these grades in other major steel standards.<\/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-ca053885bf9fd981589ed60a88a89205\"><strong>Are They Direct Equivalents?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-288c7e9fd39f1c5bd0ba3a722e99c5f2\">No. These equivalents are based on comparable mechanical properties rather than being strict 1:1 substitutions.<\/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-3c0343333b0fec7eb07ec31c83d38cd8\"><strong>S355JR \/ S355J2 \/ S355NL Equivalent Materials (ASTM \/ JIS \/ GB)<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><strong>Grado EN<\/strong><\/td><td><strong>Equivalente ASTM<\/strong><\/td><td><strong>JIS<\/strong><\/td><td><strong>GB<\/strong><\/td><\/tr><tr><td><strong>S355JR<\/strong><\/td><td>ASTM A572 Gr 50<\/td><td>SM490A<\/td><td>Q345B<\/td><\/tr><tr><td><strong>S355J2<\/strong><\/td><td>ASTM A572 Gr 50 \/ A992<\/td><td>SM490B<\/td><td>Q345D<\/td><\/tr><tr><td><strong>S355NL<\/strong><\/td><td>ASTM A516 Gr 70 (approx., toughness differs)<\/td><td>SM490C<\/td><td>Q345E<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e0e080fe0248a54e9d1414549da1eafd\"><em>\u26a0\ufe0f Nota: Los equivalentes son valores de referencia - los ingenieros deben confirmar la compatibilidad mec\u00e1nica y qu\u00edmica antes de la sustituci\u00f3n.<\/em><\/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-92868a493cd254bac1d8953bdbf30fb7\"><strong>Quick S355JR vs S355J2 vs S355NL<\/strong> <strong>Comparison Table<\/strong><\/h3>\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>Prueba de impacto<\/strong><\/td><td><strong>Temperatura<\/strong><\/td><td><strong>Condici\u00f3n<\/strong><\/td><td><strong>Uso t\u00edpico<\/strong><\/td><\/tr><tr><td><strong>S355JR<\/strong><\/td><td>\u2265355<\/td><td>27J<\/td><td>+20\u00b0C<\/td><td>Como rodado<\/td><td>Estructuras est\u00e1ndar<\/td><\/tr><tr><td><strong>S355J2<\/strong><\/td><td>\u2265355<\/td><td>27J<\/td><td>-20\u00b0C<\/td><td>Como rodado<\/td><td>Puentes, regiones fr\u00edas<\/td><\/tr><tr><td><strong>S355NL<\/strong><\/td><td>\u2265355<\/td><td>27J<\/td><td>-50\u00b0C<\/td><td>Normalizado \/ Normalizado Laminado<\/td><td>Offshore, equipos de baja temperatura<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-feb83cca98cf6dd1d39902f4e4684b20\"><em><strong>For a broader comparison of EN structural steels, see our guide: <a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s235-s275-s355-structural-steel-comparison-and-properties.html\/\" target=\"_blank\" rel=\"noopener\" title=\"Comparaci\u00f3n y propiedades del acero estructural S235 \/ S275 \/ S355\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Comparaci\u00f3n y propiedades del acero estructural S235 \/ S275 \/ S355<\/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-1066c9ca0b5498f7d02e10648f0253f3\"><strong>Comparaci\u00f3n de las propiedades mec\u00e1nicas de los aceros S355JR, S355J2 y S355NL<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-d49d292856705dcf7d55e54cbe50e11f\">Although S355JR, S355J2, and S355NL all have a yield strength of \u2265355 MPa, their toughness differences define their engineering safety and cost level.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-e7b4b24fb66c21bef2bd0c54418b6099\"><strong>S355JR<\/strong> se somete a pruebas de impacto s\u00f3lo en <strong>+20\u00b0C<\/strong> y es adecuado para estructuras est\u00e1ndar a <strong>temperatura ambiente<\/strong>.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-81cf74044ff47fc252991e4c249abe26\"><strong>S355J2<\/strong> mantiene la dureza a <strong>-20\u00b0C<\/strong> y es adecuado para <strong>puentes y proyectos de la regi\u00f3n fr\u00eda<\/strong>.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-f7bd46454ee327a4490042dd7b5562d9\"><strong>S355NL<\/strong> mantiene una tenacidad al impacto de 27J a <strong>-50\u00b0C<\/strong> despu\u00e9s de <strong>normalizar o normalizar rodando<\/strong>por lo que es especialmente adecuado para <strong>plataformas marinas y equipos criog\u00e9nicos<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-758888aaa5fd69cd193d00a4d9f3cc17\">As projects operate under different temperature conditions, impact toughness usually becomes the first property engineers examine when comparing options such as S355JR vs S355J2 or S355J2 vs S355NL.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-1daaaaf88eac2532458e3a5f51379ae6\">Compared with mild steel grades, S355 structural steel provides higher yield strength and improved load-bearing capacity, which is why it is widely used in heavy structural engineering.<\/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-77cf10dbc883ba85e4ba21f1e265f239\"><strong>S355JR vs S355J2 vs S355NL Diferencias de composici\u00f3n qu\u00edmica<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-2b7151cf6de425b87f18b6cf78d9019d\">En <strong>contenido en carbono<\/strong> de S355JR, S355J2 y S355NL es similar, <strong>generalmente \u22640,20-0,24%<\/strong>, but:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-a38801a2e3cd48775e07e3f5e8a2ad89\"><strong>S355J2<\/strong> y <strong>S355NL<\/strong> maintain stricter phosphorus (P) and sulfur (S) limits.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-bb3f0e08690679f4e2172aac050dbb26\"><strong>S355NL<\/strong> uses fine-grain practice and normalization to achieve high toughness at \u201350\u00b0C.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-6af4e4b98259d5b64642c3ba61546605\">Impurity control directly enhances resistance to cleavage fracture.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-b44acd9918deece09bac74839668b679\">For this reason, procurement teams generally review chemical composition together with mechanical properties to confirm that the selected grade meets the project\u2019s performance and safety requirements.<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"257\" src=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/offshore-wind-towers-and-low-temperature-structures.jpg\" alt=\"Application of S355NL steel in offshore wind towers and low-temperature structures\" class=\"wp-image-7844\" srcset=\"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/offshore-wind-towers-and-low-temperature-structures.jpg 500w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/offshore-wind-towers-and-low-temperature-structures-300x154.jpg 300w, https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/offshore-wind-towers-and-low-temperature-structures-18x9.jpg 18w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><figcaption class=\"wp-element-caption\">Placa de acero S355NL utilizada en torres e\u00f3licas marinas<\/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-8a39486f4dd1c0f585ff737fd7f7c30b\"><strong>Aplicaciones del acero S355JR \/ S355J2 \/ S355NL en proyectos de construcci\u00f3n y offshore<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-7d0e1c02a26e2fedd9edcd2c0097ad0d\">Estas calidades se suministran en <strong>chapa, bobina, barra redonda y tubo<\/strong> utilizados en m\u00faltiples sectores:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color wp-elements-b6aae5ff4b92f863327a7c37ba46464f\"><strong>S355JR \u2013 general construction, machinery<\/strong><br>For buyers looking for materials in this grade, explore <strong><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s355jr-carbon-steel-plate.html\/\"><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>, <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> y <a href=\"https:\/\/www.cjmsteelgroup.com\/es\/a572-s355jr-round-steel-bar.html\/\" target=\"_blank\" rel=\"noopener\" title=\"Barra redonda A572\/S355JR\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">S355JR Round Steel Bar<\/mark><\/strong><\/a>.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color wp-elements-72f584e0615f62fb1c8e435b5580b5b5\"><strong><strong>S355J2 \/ S355NL<\/strong> \u2013 Bridges &amp; Cold-Region Projects<\/strong><br>If your project requires plates for bridge, wind tower, or heavy-duty structural fabrication, you can review the <strong><a href=\"https:\/\/www.cjmsteelgroup.com\/es\/s355j2-s355jr-wind-tower-steel-plate.html\/\" target=\"_blank\" rel=\"noopener\" title=\"Placa de torre e\u00f3lica\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Placa de torre e\u00f3lica<\/mark><\/strong><\/a><\/strong> section for available S355J2\/S355NL options.<\/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-0f865d5598b28253a11631c835341ef6\"><strong>C\u00f3mo elegir entre S355JR, S355J2 y S355NL para su proyecto<\/strong><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-8f9bb10c79b12f6813cced8afea0de46\">La selecci\u00f3n entre <strong>S355JR, S355J2 y S355NL<\/strong> depende de <strong>clima, temperatura de servicio y requisitos del proyecto<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S355JR \u2192 Standard climate, cost-effective<\/strong><br>For warm\/Mediterranean regions or indoor structures.<\/li>\n\n\n\n<li><strong>S355J2 \u2192 Cold regions, bridges, better toughness<\/strong><br>Safe at \u201320\u00b0C; widely used in EU bridge fabrication.<\/li>\n\n\n\n<li><strong>S355NL \u2192 Offshore, wind power, cryogenic conditions<\/strong><br>Normalized delivery ensures reliable toughness at \u201350\u00b0C.<\/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-2a39e265707c276679481e5b8d988811\"><strong>FAQs: S355JR \/ S355J2 \/ S355NL (For Buyers &amp; Engineers)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-a04bbf30ad70dd1a76585e0325d4b758\"><strong>1. S355JR vs S355J2: What\u2019s the difference?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-02b445c08de3b1fd487e27e8ad6297bb\">S355J2 provides guaranteed impact toughness at \u201320\u00b0C, while S355JR is tested at +20\u00b0C. This makes S355J2 more suitable for colder environments or structures exposed to winter conditions. In mechanical strength and chemical composition, the two grades are largely similar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. What is the S355JR equivalent to ASTM?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-2d8a5eae09588ce48ce446ab9451e298\">The most common ASTM equivalent for S355JR is <strong>ASTM A572 Grado 50<\/strong>, widely used for general structural applications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-e364e924ea0128403bd60fb4b955a7de\"><strong>3. What is the S355J2 equivalent to ASTM?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-dab23dfc0c2a140c42f5924d5330d87c\">S355J2 is commonly compared with <strong>ASTM A572 Grado 50<\/strong> o <strong>ASTM A992<\/strong> in structural applications. However, exact substitution should be verified based on impact toughness and chemical composition.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-0df0e486d18f7b0ac930f5f8e51b1a56\"><strong>4. What is the S355NL equivalent material?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-1ff1a46bcb642689aed1546f02385832\">S355NL is often referenced against <strong>ASTM A516 Grado 70<\/strong> o <strong>A572 Grado 50<\/strong> for low-temperature plate applications, though its fine-grain and normalized condition set it apart.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-4e67f8382a856a25ec936d98880040f1\"><strong>5. Can S355JR replace S355J2?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-1607484d62e12a8309a5bbeb23ff9d24\">S355JR can replace S355J2 only in projects that do not require low-temperature impact toughness. For outdoor structures in cold climates or components exposed to winter temperatures, S355J2 remains the safer choice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-4e62e135020bd8c156708fd8d1442c3e\"><strong>6. S355JR vs S355NL: What\u2019s the difference?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-e2f1b9eaf03ff582fbd9e2e627b6732a\">S355NL offers superior low-temperature toughness (-50\u00b0C) and is delivered in a normalized condition, making it suitable for offshore, pressure equipment, and heavily welded structures. S355JR is intended for standard structural applications without low-temperature requirements.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-0dcb307365e1f86904656c42d20a45ba\"><strong>7. Is S355J2 better than S355JR?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-2b004fe18a94db3c06de91274c03e744\">Neither grade is universally \u201cbetter.\u201d S355J2 is preferable for colder climates due to its \u201320\u00b0C impact toughness, while S355JR is a cost-efficient choice for general construction in moderate environments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-c6b04b9fb6473dd50def044455bacad0\"><strong>8. S355J2 vs S355NL: Which one should I choose?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-260288f85b88f5b8af894efbabcb8f9e\">S355J2 is suitable for general heavy structures requiring \u201320\u00b0C impact toughness, while S355NL is preferred for offshore, wind energy, or low-temperature pressure equipment due to its \u201350\u00b0C toughness and normalized delivery.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-394a6bd19cb804c42d16f18e83fc91e5\">9. <strong>Is S355JR equivalent to A572 Grade 50?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-c495860868dda1811453a099b0e3c064\">Yes. For many structural applications, S355JR is considered comparable to ASTM A572 Grade 50 due to similar strength and composition.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-8d63f1dc9749d22069232e75509d2d48\"><strong>10. What does S355J2+N mean?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-bf370841babfe2204d46bb1744f875da\"><strong>S355J2+N indicates S355J2 steel delivered in a normalized condition (+N).<\/strong><br>Normalizing improves grain structure, toughness, and weldability compared with standard as-rolled S355J2.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-b25d3df7fe602a03c76070683e14e4bd\">In international procurement, <strong>S355J2+N equivalent material<\/strong> is often compared with ASTM A572 Grade 50 or ASTM A516 Grade 70 depending on toughness requirements.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-black-color has-text-color has-link-color wp-elements-85954659a918f20718b99519c4eee7ee\"><strong>11. What are the chemical composition limits of S355JR?<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-c398c24bcab58bac16682336c31ec431\">S355JR typically includes \u22640.24% C, \u22641.60% Mn, \u22640.55% Si, with low levels of P and S. Exact limits depend on product form and thickness.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-b2fd5629e292c0c03128fcf738697f21\"><em><strong>Still unsure which S355 grade best suits your project?<\/strong><\/em><\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color wp-elements-9909541bc12486013e0d8358a3362997\"><em><strong>Acero CJM<\/strong> suministra placas y bobinas S355JR, S355J2 y S355NL a compradores de todo el mundo.<br><strong><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 de ingenieros<\/mark><\/a><\/strong> para la selecci\u00f3n personalizada de materiales y el apoyo al suministro.<\/em><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Overview of S355JR, S355J2, and S355NL Steel Grades S355JR, S355J2, and S355NL steel are among the most commonly used structural steels under EN 10025, especially in construction, machinery, and offshore engineering. They share a minimum yield strength of 355 MPa, while their key differences relate to: This guide compares S355JR vs S355J2, S355J2 vs S355NL, [&hellip;]<\/p>","protected":false},"author":1,"featured_media":7844,"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-7353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"metadata":{"_edit_lock":["1772778021:1"],"_edit_last":["1"],"_aioseo_title":["S355JR vs S355J2 vs S355NL Steel: Equivalent &amp; Properties"],"_aioseo_description":["Compare S355JR vs S355J2 vs S355NL steel grades. 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However, exact substitution should be verified based on impact toughness and chemical composition."},{"question":"What is the S355NL equivalent material?","answer":"S355NL is often referenced against ASTM A516 Grade 70 or A572 Grade 50 for low-temperature plate applications, though its fine-grain and normalized condition set it apart."},{"question":"Can S355JR replace S355J2?","answer":"S355JR can replace S355J2 only in projects that do not require low-temperature impact toughness. For outdoor structures in cold climates or components exposed to winter temperatures, S355J2 remains the safer choice."},{"question":"S355JR vs S355NL: What\u2019s the difference?","answer":"S355NL offers superior low-temperature toughness (-50\u00b0C) and is delivered in a normalized condition, making it suitable for offshore, pressure equipment, and heavily welded structures. S355JR is intended for standard structural applications without low-temperature requirements."},{"question":"What does the \u201cN\u201d mean in S355NL?","answer":"The \u201cN\u201d stands for normalized rolling, meaning the steel has been heat-treated to refine grain structure, improving toughness and weldability. This makes S355NL suitable for offshore platforms, pressure vessels, and low-temperature storage tanks."},{"question":"What does S355J2+N mean?","answer":"S355J2+N indicates S355J2 steel delivered in a normalized condition (+N).\nNormalizing improves grain structure, toughness, and weldability compared with standard as-rolled S355J2."}]}}]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":"-1","robots_max_videopreview":"-1","robots_max_imagepreview":"large","priority":null,"frequency":"default","local_seo":null,"limit_modified_date":false,"created":"2025-09-25 02:28:24","updated":"2026-03-06 06:22:03"},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t<a href=\"https:\/\/www.cjmsteelgroup.com\/es\" title=\"Home\">Home<\/a>\n<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t<a href=\"https:\/\/www.cjmsteelgroup.com\/es\/news\/\" title=\"News\">News<\/a>\n<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\tS355JR \/ S355J2 \/ S355NL \u2013 What\u2019s the Difference?\n<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.cjmsteelgroup.com\/es"},{"label":"News","link":"https:\/\/www.cjmsteelgroup.com\/es\/news\/"},{"label":"S355JR \/ S355J2 \/ S355NL \u2013 What\u2019s the Difference?","link":"https:\/\/www.cjmsteelgroup.com\/es\/s355jr-s355j2-s355nl-steel-difference.html"}],"medium_url":"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/offshore-wind-towers-and-low-temperature-structures-300x154.jpg","thumbnail_url":"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/offshore-wind-towers-and-low-temperature-structures-150x150.jpg","full_url":"https:\/\/www.cjmsteelgroup.com\/wp-content\/uploads\/2025\/10\/offshore-wind-towers-and-low-temperature-structures.jpg","_links":{"self":[{"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/posts\/7353","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/comments?post=7353"}],"version-history":[{"count":9,"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/posts\/7353\/revisions"}],"predecessor-version":[{"id":8135,"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/posts\/7353\/revisions\/8135"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/media\/7844"}],"wp:attachment":[{"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/media?parent=7353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/categories?post=7353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cjmsteelgroup.com\/es\/wp-json\/wp\/v2\/tags?post=7353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}