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S250GD,S250GD+Z,S250GD+ZF,Galvanized steel plate and coil
Source:Xin Steel Industry   Date:2012/08/15

S250GD+Z,S250GD,S250GD+ZF hot-dip galvanized steel plate are used for structural steel.After rolling galvanized steel sheet S250GD,S250GD+Z,S250GD+ZF,Xinsteel suggest customers accept the surface quality treatment,normally choose Class B,improved surface,with this surface quality,small imperfections such as stretch leveling breaks,skin pass marks,scratches,indentations,spangle structure and zinc run-off marks and light passivation marks are permissible.


Chemical passivation and oiling treatment for galvanized steel plate S250GD+Z,S250GD+ZF,this agreement may be reached on this combination of surface treatment if increased protection against the formation of white rust is required.Besides,sealed and phosphated treatment also can be chosed by customers.

 

Mechanical properties for Hot dip galvanized steel S250GD:

Steel grade

Symbol for the type 

of hot dip coating

Yield strength

(Mpa) Min

Tensile strength (Mpa) Min

S250GD

S250GD+Z

250

330

   S250GD

S250GD+ZF

250

330