What’s HX260YD+ZM steel ?

ASK:

What's HX260YD+ZM steel ?

ANSWER:HX260YD+ZM is a hot dip Zinc-magnesium alloy coated steel grade in European standard EN10346 ,HX260YD+ZM is cold forming quality material with high proof strength . The material No. of HX260YD+ZM is 1.0926+ZM. HX260YD+ZM is the steel whose composition is controlled to achieve improve plastic strain ratio r and strain hardening exponent n values.

+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 HX260YD+ZM means hot dip Zinc-magnesium coated,cold forming quality material with high proof strength.

HX260YD+ZM material steel have coil, strip, sheet condition, thickness is from 0.2mm-3mm.

HX260YD+ZM steel coating finish is N(Normal spangle) or M(Minimized spangle)

HX260YD+ZM steel Surface quality A (As coated surface) , B(Improved surface), C(Best quality surface)

HX260YD+ZM steel Surface treatment C (chemically passivated) , O (oiled), CO (chemically passivated and oiled) , P (phosphate) , PO (phosphate and oiled), S (sealed)

HX260YD+ZM steel Coating mass are: ZM060, ZM070, ZM080,ZM090,ZM100,ZM120, ZM130,
ZM140, ZM150, ZM160, ZM175, ZM190, ZM200, ZM250, ZM300, ZM310, ZM350, ZM430,

HX260YD+ZM steel mechanical property:
Proof strength should be 260-320MPa
Tensile strength should be 380-440MPa
Elongation A80 should be not less than 30%
Plastic strain ratio r90 should be not less than 1.4
Strain hardening exponent n90 should be not less than 0.16