Chemical composition and mechanical properties of Q390B HSLA steel plate

Q390B is a low-alloy high-strength plate. The carbon content of Q390B HSLA steel plate is low, and it cannot be quenched and tempered. However, it has excellent corrosion resistance and wear resistance. Q390B steel can be used in mechanical equipment such as loaders, bulldozers, coal mine hydraulic supports, and other structural parts. It can be used for all kinds of construction machinery, plant construction and general construction.

Chemical composition of Q390B low alloy high strength steel:
C≤0.20, Mn: 1.00-1.60, Si≤0.55, P≤0.030, S≤0.030, V: 0.02-0.20
Nb: 0.015~0.060, Ti: 0.02~0.20, Al≥0.015, Cr≤0.30, Ni ≤0.70

Brief introduction of tensile yield strength of Q390B HSLA steel plate:
Q390B tensile strength: 490-650
Q390B Elongation: 19
Q390B Yield Point: 390
Q390B shock +20℃: 34

Q390B HSLA steel plate is widely used in boiler containers, oil storage tanks, bridges, etc.