Hot Rolled ASTM A588 GrB Galvanized Steel Coils  

Product Description Hot dip galvanized coil: immerse the steel sheet into the molten zinc bath to make a layer of zinc adhere to the surface of the steel sheet. ASTM A588 GrB hot-dip galvanized coil is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in the zinc melting bath to make galvanized steel plate; Alloyed galvanized steel sheet. This kind of steel plate is also made by hot dip method, but after it is out of the groove, it is immediately heated to about 500 ℃ to form an alloy coating of zinc and iron. The galvanized coil has good coating adhesion and weldability.ASTM A588 GrB Hot Rolled Hot Dipped Galvanized Steel Coil through passivation treatment, the zinc coating can reduce the folding corrosion (white rust) under the condition of damp temperature storage and transportation. However, the anti-corrosion performance of this chemical treatment is limited, and it hinders the adhesion of most coatings. Thi…