Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
ASK:
ANSWER:S250GD+ZF is a hot dip Zinc-iron coated steel grade in European standard EN10346 ,S250GD+ZF is for construction quality material because S250GD+ZF is classified in accordance with it’s minimum proof strength, The material No. of S250GD+ZF is 1.0242+ZF.
+ZF means hot dip Zinc-iron coating. The zinc content of the bath is at least 99% . So S250GD+ZF means hot dip zinc-iron coated,construction material steel.
S250GD+ZF material steel have coil, strip, sheet condition, thickness is from 0.2mm-3mm.
S250GD+ZF steel coating finish is N(Normal spangle) or M(Minimized spangle)
S250GD+ZF steel Surface quality A (As coated surface) , B(Improved surface), C(Best quality surface)
S250GD+ZF steel Surface treatment C (chemically passivated) , O (oiled), CO (chemically passivated and oiled) , P (phosphate) , PO (phosphate and oiled), S (sealed)
S250GD+ZF steel Coating mass are: ZF100, ZF120
S250GD+ZF steel mechanical property:
Proof strength should be not less than 250MPa
Tensile strength should be not less than 330MPa
Elongation A80 should be not less than 19%
