S355J2WP is a European standard atmospheric corrosion-resistant steel. It is a weather-resistant steel plate. It is a low-alloy steel made by adding a certain amount of alloy elements to ordinary steel. The atmospheric corrosion resistance of weathering steel is 2-8 times that of ordinary carbon steel. It has excellent mechanical properties, welding properties, etc., and the longer the time, the more obvious the corrosion resistance effect.
"+N or +AR" means when the product is specified and delivered under the conditions +N or +AR. The mark "+N or +AR" will be added to the steel name and steel number. Example: Structural steel (S) with improved atmospheric corrosion resistance (W) when the lower limit of yield strength under the environment is 355MPa and the lower limit of 0C impact energy is 27] (2) and standard delivery conditions: Steel EN 10025 -5-S355J2W+N (or +AR); or steel EN10025-5-1.8959+N (or +AR)
3. S355J2WP steel plate implementation standard: S355J2WP implements EN10025-5:2004 standard
4. S355J2WP steel plate delivery status: delivered in hot-rolled, normalized or normalized rolling status
5. S355J2WP improved atmospheric corrosion resistant steel
Adding a certain amount of alloying elements, such as P, Cu, Cr, Ni, M, to steel, in order to increase its resistance to air corrosion, an automatic protective oxide is formed on the base metal under the influence of climate conditions.
Note 1: Improved atmospheric corrosion resistant steel is also usually called weathering steel
S355J2WP is weather-resistant steel, which is atmospheric corrosion-resistant steel. It is a low-alloy steel series between ordinary steel and stainless steel. Weather-resistant steel is made of ordinary carbon steel with a small amount of copper, nickel and other corrosion-resistant elements added. It has the strength and toughness of high-quality steel. , stretching, forming, welding and cutting, abrasion, high temperature, fatigue resistance and other characteristics, the weather resistance is 2 to 8 times that of ordinary carbon steel, and the paintability is 1.5 to 10 times that of ordinary carbon steel. At the same time, it is rust-resistant, can resist corrosion and extend the life of components, can reduce thickness and reduce consumption, save labor and energy, etc. Weathering steel is mainly used in steel structures that are exposed to the atmosphere for a long time, such as railways, vehicles, bridges, towers, photovoltaics, and high-speed projects. It is used to manufacture structural parts such as containers, railway vehicles, oil derricks, harbor buildings, oil production platforms and containers containing hydrogen sulfide corrosive media in chemical and petroleum equipment.
