S355J2W weathering steel properties

S355J2W is a European standard high-strength low-alloy structural steel plate, belonging to the weather-resistant steel plate series. In its grade representation, "S" represents structural steel, "355" indicates that the yield strength is 355MPa, "J2" represents the impact work grade, that is, the impact work value at -20°C is not less than 27J, "W" means that the steel plate has weather resistance. S355J2W steel plate implements EN 10025 standard, and is widely used in buildings, Bridges and other fields with high weather resistance requirements.

S355J2W features

High strength: The yield strength and tensile strength of S355J2W steel plate are high, can withstand large loads, and has high safety performance.

Good plasticity: at high temperature, S355J2W steel plate still maintains good plasticity, easy to bend, roll and other deformation processing.

Excellent welding performance: The steel plate contains an appropriate amount of alloying elements, making the welded joint high strength and good compactness.

Excellent weather resistance: After special treatment, S355J2W steel plate has excellent corrosion resistance, can be used for a long time under harsh environmental conditions and is not easy to rust, and its atmospheric corrosion resistance can be 2-8 times that of ordinary carbon steel.

Z performance: S355J2W is a Z performance steel, that is, the steel plate has the ability to resist laminar tear in the thickness direction, and the grade arrangement is Z35, Z25, Z15 from high to low.

Chemical composition of S355J2W

The chemical composition of S355J2W steel plate includes carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and other elements, as well as chromium (Cr), nickel (Ni), copper (Cu) and molybdenum (Mo) and other alloying elements.

Application scope of S355J2W

Because of its excellent performance characteristics, S355J2W steel plate has been widely used in many fields such as construction, bridge, vehicle and ship. Specifically, it can be used to make:

Construction field: bridge, highway guardrail, building exterior wall panels, roof and other structural parts to improve the service life and safety of buildings.

Bridge engineering: As key components such as bridge panels and main beams, it can withstand heavy loads and harsh environments.

Vehicle manufacturing: body frame, chassis and other components to improve corrosion resistance and safety of vehicles.

Shipbuilding: hull structure, deck, cabin and other components, enhance the ship's seawater corrosion resistance.

Petrochemical: Storage tanks, reactors, pipelines and other equipment, withstand the harsh chemical corrosion environment.

Energy field: wind power tower barrel, solar panel bracket and other structural parts to ensure the normal operation of energy equipment.

Environmental protection: Waste treatment equipment, sewage treatment equipment and other environmental protection facilities, withstand harsh environmental conditions.