What are the common defects of S355J2 carbon steel plate sheet welding

Q690E high strength steel chemical composition: C: 0.08-0.15, Si: 0.17-0.37, Mn: 0.40-0.70, S: ≤0.035, P: ≤0.035, Cr: 0.30～0.60, Cu: ≤0.030, Ni: ≤0.030, V: 0.15-0.30, Mo: 0.25-0.35 Q690E mechanical properties: Tensile strength σb (MPa): ≥440 Yield strength σs (MPa): ≥225 Elongation δ5 (%): ≥22 Reduction of area ψ (%): ≥50 Impact energy Akv (J): ≥78

Structural steel is a category of steel construction material that is produced with a particular cross section or shape, and some specified values of strength and chemical composition. S355J2 carbon steel plate sheet, Structural steel plates are normally supplied in the as-rolled condition. Our structural steel plate are supplied with thickness range 3mm to 350mm. The plates may be ordered normalized or stress relieved, or both. steel plates shall be normalized. steel plates and sheets shall be quenched and tempered.

we also provide the S355J2 carbon steel plate sheet welding service for customers, and our welding method, hand arc welding, submerged arc welding and tungsten argon arc welding, melting polar gas shielded welding and so on. And we have lots of successful S355J2 carbon steel plate sheet welding project, such as longitudinal submerged arc welding pipe, welding cross colume, prestressed truss and welding box colume.

This week, the price of S355J2 carbon steel plate sheet futures rose sharply, and the market mentality was positive. On the one hand, the recent arrival of steel mills is still not much, which has a certain support for the price. On the other hand, the business confidence in the future market is gradually restored, and the willingness to support the price is strong. Today, the move up momentum of S355J2 carbon steel plate sheet futures weakened. In the short term, there may be a slight adjustment pattern, but the probability of a sharp decline is small. It is expected that the S355J2 carbon steel plate sheet market will be mainly volatile tomorrow.