EN 10025-6 S890QL1 high strength steel product ladle analysis

The sulfur element (S element) comes from the ore and fuel coke of steelmaking. It is a harmful element in EN 10025-6 S890QL1 high strength steel etc. steel. Sulfur exists in steel in the form of iron sulfide (FeS). FeS and Fe form a low melting point (985℃) compound. The hot working temperature of steel is generally above 1150 - 1200℃, so when the steel is hot working, the premature melting of FeS compound causes the workpiece to crack, which is called "hot brittleness". It reduces ductility and toughness of steel and causes cracks during forging and rolling. Sulfur is also detrimental to welding performance and reduces corrosion resistance.

A514 grade P alloy structural steel chemical composition (melting analysis)%C: 0.12-0.21, Si: 0.20-0.35, Mn: 0.45-0.70, P max.: 0.035, S max.: 0.035, Ni: 1.20-1.50, Cr: 0.85-1.20, Mo: 0.45-0.6.0, B: 0.001-0.005
The mechanical properties in thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥, %: 18

The market mentality tended to be cautious, and the market prices in most regions were adjusted in a narrow range. In terms of resources, the current market inventory continues to digest, but due to the high output of EN 10025-6 S890QL1 high strength steel, and the off-season effect of downstream demand is still continuing, resulting in a slow de stocking speed. In the short term, in the case of poor shipment of high price resources and cautious market mentality, it is expected that the price of EN 10025-6 S890QL1 high strength steel in the short term may be in weak consolidation operation.

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