steel plate S690QL stock VS A283 steel

ASME SA514 grade B quenched and tempered alloy steel element composition%C: 0.12-0.21, Si: 0.20-0.35, Mn: 0.70-1.00, P max.: 0.035, S max.: 0.035, B max.: 0.005, Cr: 0.40-0.65, Mo: 0.15-0.25, V: 0.03-0.08, Ti: 0.01-0.03
The mechanical properties in thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥, %: 18

The tensile strength of seamless steel pipe is more than 8-10 times of that of ordinary steel, and its elastic modulus is better than that of steel, with excellent creep resistance, corrosion resistance and seismic resistance; the mechanical performance of seamless steel pipe is excellent, easy to machine, etc.; the seamless steel pipe steel plate S690QL is highly elastic, reused in mechanical equipment, memoryless, deformation free, and antistatic.

Corporate mission: to provide high quality steel products steel plate S690QL and services to global customers.Strategic goal: to be the leading steel materials supplier in the world.Enterprise core values: people-oriented, customer first, quality oriented, comprehensive and open, continuous innovation.Customer first is to always put the satisfaction of customer needs first. The key point is "customer centered". We should consider what customers need us to do, what we have done for them, what else we can do for them.

The characteristic of niobium in steel plate S690QL etc. steel material is to increase the recrystallization temperature of austenite, so as to achieve the purpose of refining austenite grains. In general, the amount of niobium added in steel material is less than 0.05%, and the contribution of niobium above 0.05% to strengthening and toughening will no longer be obvious.

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