Q235B/Q355B Galvanized steel coil
Q235B is a common carbon structural steel. "Q" stands for yield strength and "235" means that the yield strength of this steel is 235MPa. Q235B galvanized steel coil is a layer of zinc coated on the surface of Q235B steel through hot-dip plating and other processes to enhance its corrosion resistance. The thickness of the zinc layer generally has a variety of specifications, such as Z30 - 275g/m² mentioned on Alibaba's English site.
