Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
ASK:
ANSWER:HX220YD+ZF is a hot dip Zinc-iron coated steel grade in European standard EN10346 ,HX220YD+ZF is cold forming quality material with high proof strength . The material No. of HX220YD+ZF is 1.0923+ZF. HX220YD+ZF is the steel whose composition is controlled to achieve improve plastic strain ratio r and strain hardening exponent n values.
+ZF means hot dip Zinc-iron coating. The zinc content of the bath is at least 99%, or the annealing produces and iron-zinc coating with an iron content of normally 8%-12%. So HX220YD+ZF means hot dip zinc-iron coated, cold forming material steel with high proof strength .
HX220YD+ZF material steel have coil, strip, sheet condition, thickness is from 0.2mm-3mm.
HX220YD+ZF steel coating finish is N(Normal spangle) or M(Minimized spangle)
HX220YD+ZF steel Surface quality A (As coated surface) , B(Improved surface), C(Best quality surface)
HX220YD+ZF steel Surface treatment C (chemically passivated) , O (oiled), CO (chemically passivated and oiled) , P (phosphate) , PO (phosphate and oiled), S (sealed)
HX220YD+ZF steel Coating mass are: ZF100, ZF120
HX220YD+ZF steel mechanical property:
Proof strength should be 220-280MPa
Tensile strength should be 340-420MPa
Elongation A80 should be not less than 32%
Plastic strain ratio r90 should be not less than 1.5
Strain hardening exponent n90 should be not less than 0.17
