Resistance to corrosion

Al-Zn coated steel sheet has better performance in corrosion resistance than GI sheet of the same thickness and its service life is 1-5times longer than general GI sheet.

2.

Thermal resistance

Common HDG steel plate normally works under 230℃, and has its color changed at 250℃, however, Galvalume steel sheet can sustain the environment at 315℃ for long time.

3.

High reflectivity

Reflection ability of heat and light is twice as much as those of hot dip galvanized steel sheet, and its reflectivity is more than 0.75, exceeding 0.65(required by the EPA Energy Star Standard), which is an ideal construction materials of saving energy.