Hot-dip galvanized steel sheet and coil HX180BD,HX180BD+Z,HX180BD+ZF,H180BD,H180BD+ZF,H180BD+Z,for the name of HX180BD+Z zinc coated steel coil,B is short for bake-hardening steels that demonstrate an increase in proof strength following heating in the region of 170 centigree for twenty minutes.As for hot dip galvanized steel plate HX180BD+Z,H180BD+Z,Z is short for Zinc and indicate the coating is Zinc,as for hot dip galvanized steel plate HX180BD+ZF,H180BD+ZF,ZF is short foe Zinc and Ferrum(Iron) and indicate the coating is Zinc with alloy iron.

When orders for Hot-dip galvanized steel sheet and coil HX180BD,HX180BD+Z,HX180BD+ZF,H180BD,H180BD+ZF,H180BD+Z,customers need inform us their request for steel plate surface quality.Such as As coated surface (A) which imperfections like small pits,variations in spangle size,dark spots,stripe marks and light passivation stains are permissible.Improved surface(B) which is obtained by skin passing.Best quality surface (C) which is also done skin passing,and the steel surface shall not impair the uniform appearance of a high-class paint finish.The other side shall have at least the characteristics of surface quality B.

Chemical composition for Hot dip galvanized steel HX180BD (Max):