1. What is S355J0W?
S355J0W is a weathering steel plate, which belongs to the European standard grade and the implementation standard is EN10025-5:2004. It adds a small amount of corrosion-resistant elements such as copper and nickel to ordinary steel and has excellent performance in many aspects.
2. What are the performances of S355J0W?
Atmospheric corrosion resistance: It can form a dense protective film on the surface of the steel plate to resist corrosion factors such as moisture, oxygen and pollutants in the atmosphere. The atmospheric corrosion resistance is 2-8 times that of ordinary carbon steel, and has a longer service life.
Mechanical properties: It has the characteristics of high-quality steel such as toughness, plasticity, forming, welding, abrasion, high temperature, and fatigue resistance. The yield strength is above 355MPa, the tensile strength is above 580MPa, and the elongation after fracture is ≥20%.
Welding performance: It can be connected by various welding methods such as arc welding, gas welding, and resistance welding.
Impact toughness: When the impact temperature is 0℃, the impact energy is ≥31J, which can withstand large impact loads to ensure structural stability and safety
3.Which material can replace it?
Q355NH, also a weathering steel, has chemical composition and mechanical properties that are almost equivalent to S355J0W.
4.As a weather-resistant pipe, are there seamless pipes?
Normally, both weathering steels are in the form of steel plates, so they are usually welded pipes.
5.Application scenarios of weathering steel pipes
Weathering steel has excellent atmospheric corrosion resistance, good mechanical properties, excellent welding performance and good impact toughness. It is widely 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.
