The difference in composition and performance of S355J2W steel plate and S355J2WP steel plate

Meaning of S355J2W steel plate: S is structural steel, 355 is a yield strength of 355MPa, J2 requires -20°impact, and the letter W indicates that the steel has the ability to resist atmospheric corrosion.

S355J2WP steel plate meaning: S355J2WP steel plate is a high-phosphorus corrosion-resistant structural steel. S is structural steel, 355 has a yield strength of 355MPa, J2 requires -20°impact, the letter W indicates that the steel has the ability to resist atmospheric corrosion, and P is the chemical element phosphorus.

S355J2W steel plate is a fine-grained steel, and S355J2W steel plate is an improved atmospheric corrosion-resistant structural steel.

S355J2W steel plate is widely used in high-speed rail bogies, welding, bolting and riveting parts. S355J2W steel plate enhances the ability to resist atmospheric corrosion at ambient temperature. In order to achieve corrosion resistance, certain alloy elements are added, such as: P , Cu, Cr, Ni, Mo, etc., form a protective oxide layer on the metal surface under various climatic conditions.