Carbon Galvanized Steel
For galvanized coils, the sheet steel is immersed in a molten zinc bath to make a sheet of zinc coated on its surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in a plating tank with zinc melted to make galvanized steel plate; alloyed galvanized steel plate. This kind of steel plate is also manufactured by hot dip method, but immediately after being out of the tank, it is heated to about 500 ℃ to form an alloy coating of zinc and iron. This galvanized coil has good paint adhesion and weldability.
Hot dip galvanizing: the molten metal reacts with the iron matrix to produce an alloy layer, so as to combine the matrix and the coating.
Cold galvanizing: the amount of galvanizing is very small, only 10-50g / m2, and its corrosion resistance is much different from that of hot-dip galvanized pipe.
Technical Standard | EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653 | |||
Steel Grade | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, | |||
Type | Galvanized Coil | |||
Thickness | 0.12-6.00mm, or customer's requirement | |||
Width | 600mm-1500mm, according to customer's requirement | |||
Type of Coating | Zinc | |||
Zinc Coating | 30-275g/m2 | |||
Surface Treatment | Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) | |||
Surface Structure | Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS) | |||

