have a smooth and silver-color spangle surface. the special aluminum and zinc coating structure makes it have excellent corrosion resistance, good heat resistance, good adhesion between the coating and the paint film, good processing performance of punching, cutting, welding, etc.

Hot dipped galvalume steel coil have the following advantaged features:

1.Heat reflectivity
Hot dipped galvalume steel plate have a high heat reflectivity, twice than the galvanized steel sheet, used as a material for heat insulation.

2.Heat resistance
Aluminum-zinc steel plate can withstand high temperatures of more than 300 degrees Celsius, which are widely applied in chimney pipes, ovens, illuminators and fluorescent lampshades.

3.Corrosion resistance
the corrosion resistance are effected by the protective function of aluminum. When zinc break, aluminum will create a dense layer of aluminum oxide, which prevents corrosion-resistant substances from further corroding the interior.

4.Economic practicality
the area of the galvalume steel plate is more than 3% larger than that of the galvanized steel sheet with the same weight and the same coating thickness because the density of 55% AL-Zn is lower than that of zinc.

5.Easy to paint
the aluminum-zinc plate have excellent adhesion, which can be painted without pre-treatment.

FAQ of Hot Dipped Galvalume Steel Coil

1.What is galvalume steel coil?
Hot dipped galvalume steel is carbon steel coated on both sides with an alloy that combines 55% aluminum, 43.5% zinc and 1.5% silicon. Galvalume steel owns the impervious properties of aluminum and the malleability of zinc. the aluminum-zinc alloy coating genrates galvalume steel a smooth and plain finish.

2.Is aluzinc steel the same to galvalume steel?
Aluzinc is a  whose both sides are coated by Aluminium (55%), Zinc (43.5%) and Silicon (1.5%), widely known as galvalume or zincalume.

3.
 is coated on both sides by zinc, while galvalume steel is coated by aluminum,zinc, and a small amount of silicon. Galvalume steel have superior durability and resistance to corrosion in comparison to galvanized steel.

4.Is hot dipped galvalume steel coil a good product to produce roofing sheet?
Hot dipped galvalume steel coil are proved and recognized metal roofing sheet because galvalume have excellent corrosion resistance, good heat resistance and good processing performance of punching.