What’s HDT750C+ZM steel ?

ASK:

What’s HDT750C+ZM steel ?

ANSWER:HDT750C+ZM is a hot dip Zinc-magnesium coated steel grade in European standard EN10346 ,HDT750C+ZM is multi phase hot rolled steel for cold forming,complex-phase quality steels material (the steel with multi phase microstructure containing mainly bainite, ferrite, whereas martensite, tempered martensite, retained austenite and pearlite may be present as additonal phases), The material No. of HDT750C+ZM is 1.0956+ZM.

+ZM means Hot-dip Zinc-magnesium alloy coated, application of a Zinc-magnesium coating by immersing the prepared strip in a molten bath of zinc-aluminum-magnesium. The composition of the bath is sum of aluminium and magnesium from 1.5%-8%, containing minimum of 0.2% magnesium and the balance zinc. So HDT750C+ZM means hot dip zinc-magnesium coated, multi phase hot rolled steel for cold forming,complex-phase quality steels material.

HDT750C+ZM material steel have coil, strip, sheet condition, thickness is from 0.2mm-3mm.

HDT750C+ZM steel coating finish is N(Normal spangle) or M(Minimized spangle)

HDT750C+ZM steel Surface quality A (As coated surface) , B(Improved surface), C(Best quality surface)

HDT750C+ZM steel Surface treatment C (chemically passivated) , O (oiled), CO (chemically passivated and oiled) , P (phosphate) , PO (phosphate and oiled), S (sealed)

HDT750C+ZM steel Coating mass are:
ZM060,ZM070,ZM080,ZM090,ZM100,ZM120,ZM130,ZM140,ZM150,ZM160,ZM175,ZM190,ZM200,ZM250,ZM300,ZM310,ZM350,ZM430,

HDT750C+ZM steel mechanical property:
Yield strength should be 620-760MPa
Tensile strength should be not less than 750MPa
Elongation A80 should be not less than 10%