S355 steel is a European standard structural steel which is commonly used in Europe, the material is better than S235 and S275 structural steel in yield strength, tensile strength and other properties. According to EN 10025, S355 material is divided into …

一、 S355JR 就是 BS EN 10025；S355JR相当于我国相当于我国——低合金高强度结构钢的钢号（欧标EN10025）。 其中355是指：屈服强度355MPa。 屈服强度355MPa相当于GB的Q345常说的低合金板。 JR表示该号没有冷成型等特殊要求，我国最接近的材料是： Q345B。 三、 S355J2 执行标准：EN10025，是s355j2欧标低合金钢板。 S355J2就是普通的欧洲低合金钢板，一般的中厚板钢厂都可以生产，生产标准参照EN10025即可。 仅供参考,对应需要 根据您客户的具体的 …

The steel classes are defined in the corresponding standards: EN 10025-2 Hot rolled products of structural steels. Technical delivery conditions for non-alloy structural steels

S355NL 是EN10025-3:2004標準中的 正火鋼 （細晶粒鋼）.其 屈服強度 和 抗拉強度 和我國的 Q345 低合金鋼 對應·NL是要求在零下50度的低溫環境中做 衝擊吸收功 試驗·且 衝擊值 不小於27J. 特點：衝擊值不小於27J. —如產品按“+N或+AR”狀態交貨時，則須標記“+N或+AR”。 EN10025-23 質量等級分為S355N S355NL。 另有大量規格未列出。 Z25指鋼板做厚度方向抗 層狀撕裂 性能試驗,主要考慮的是抗震要求. S355比Q345B稍強一些，焊接上完全一樣就行。

S355NL是EN10025-3:2004标准中的正火钢（细晶粒钢）.其屈服强度和抗拉强度和我国的Q345低合金钢对应·NL是要求在零下50度的低温环境中做冲击吸收功试验·且冲击值不小于27J.

2019年1月7日 · Structural steels are ferrous metals that belong to the group of mild steels. In this post, we’ll cover the uses, mechanical properties and chemical composition of the most used grades – S235, S275, S355 and S420. Structural steels are the most widely used steels because of their sufficient qualities and comparatively low price.

S355JR在中国钢材是低合金高强度结构钢，硬度为70-80B，屈服强度在300-400MPa之间。

S355JR steel (1.0045 material) is one of the quality grades in S355 steel group, the steel has a minimum yield strength of 355 MPa (51 ksi) when the thickness is ≤16mm, and the minimum impact energy 27J at room temperature 20 °C (68 °F).

2015年8月23日 · S355 is a non-alloy European standard (EN 10025-2) structural steel, most commonly used after S235 where more strength is needed. It got great weldability and machinability, let us see more mechanical details of this steel.

S355 is a non-alloy structural steel under EN 10025 with a minimum yield strength of 355 MPa. The name “S” stands for structural steel, and “355” indicates the yield strength in MPa. It is also known by equivalent grades such as Q355B (GB) and A572 Grade 50 (USA).