Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
ASK:
ANSWER:S420GD is a steel grade in European standard,S420GD is construction quality steel material, The material No. of S420GD is 1.0239.
+Z means hot dip Zinc coating. The zinc content is at least 99% . So S420GD+Z means hot dip zinc coated, structural material steel.
S420GD+Z material steel have coil, strip, sheet condition, thickness is from 0.2mm-3mm.
S420GD+Z steel coating finish is N(Normal spangle) or M(Minimized spangle)
S420GD+Z steel Surface quality A (As coated surface) , B(Improved surface), C(Best quality surface)
S420GD+Z steel Surface treatment C (chemically passivated) , O (oiled), CO (chemically passivated and oiled) , P (phosphate), PO (phosphate and oiled), S (sealed)
S420GD+Z steel Coating mass are: Z60/Z80/Z100/Z410/Z200/Z225/Z275/Z350/Z450/Z600
S420GD+Z steel mechanical property:
Proof strength should be not less than 420MPa
Tensile strength should be not less than 480MPa
Elongation A80 should be not less than 15%
