We have 4 typical production lines A588 grade B high strength steel, which can produce hot rolled Seamless, LSAW, ERW and SSAW pipes. The Seamless pipe production line range is OD 10.3mm-965.2mm, wall thickness 1.0mm-60mm, Annual capacity is 500 thousand tons. LSAW pipe production line range is OD 406mm-1524mm, wall thickness 6mm-50mm, Annual capacity is 150 thousand tons.
Pakistan's iron and steel industry has suspended A588 grade B high strength steel production and operation since the outbreak, the dawn reported on April 8. Last month, Prime Minister Imran announced a rescue package for the steel industry. Recently, Pakistan's steel industry called for the resumption of production as soon as possible.
Oxygen (O) is a harmful element in steel such as A588 grade B high strength steel. Although manganese, silicon, iron and aluminum are added to deoxidize the steel at the end of steelmaking, they can not be removed completely. During the solidification of molten steel, the reaction of oxygen and carbon in the solution will produce carbon monoxide, which can cause bubbles. Oxygen mainly exists in the form of FeO, MnO, SiO2, Al2O3 and other inclusions in the steel, which reduces the strength and plasticity of the steel. Especially, it has serious influence on fatigue strength and impact toughness.
A514gr.F high yield strength structural quality steel chemical composition%C: 0.10-0.20, Si: 0.15-0.35, Mn: 0.60-1.00, P max.: 0.035, S max.: 0.035, Ni: 0.70-1.00, Cr: 0.40-0.65, Mo: 0.15-0.25, V: 0.03-0.08, Cu: 0.15-0.50, B: 0.001-0.005The mechanical properties in the plate thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥, %: 18
