Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
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ANSWER:HCT780C is a steel grade in European standard EN10346 ,HCT780C is complex-phase quality steel material for cold forming (the steel with a multiphase microstructure containning mainly bainite, ferrite, whereas martensite, tempered martensite, retained austenite and pearlite may be present as additonal phases ), The material No. of HCT780C is 1.0954.
+Z means hot dip Zinc coating. The zinc content is at least 99% . So HCT780C+Z means hot dip zinc coated, structural material steel.
HCT780C+Z material steel have coil, strip, sheet condition, thickness is from 0.2mm-3mm.
HCT780C+Z steel coating finish is N(Normal spangle) or M(Minimized spangle)
HCT780C+Z steel Surface quality A (As coated surface) , B(Improved surface), C(Best quality surface)
HCT780C+Z steel Surface treatment C (chemically passivated) , O (oiled), CO (chemically passivated and oiled) , P (phosphate) , PO (phosphate and oiled), S (sealed)
HCT780C+Z steel Coating mass are: Z60/Z80/Z100/Z410/Z200/Z225/Z275/Z350/Z450/Z600
HCT780C+Z steel mechanical property:
Yield strength should be 570-720MPa
Tensile strength should be not less than 780MPa
Elongation A80 should be not less than 10%
Bake hardening index BH2 should be mot than than 30MPa
