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HANNSTAR
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Product Description
The alu-zinc alloy structure of the galvalum steel plated is composed of 55% aluminum, 43.4% zinc and 1.6% silicon solidified at 600 ℃ high temperature, and its entire structure is made of aluminum-iron-silicon-zinc to form a dense quaternary crystal, Thereby forming a strong and effective barrier to prevent the penetration of corrosion factors.
Specifications:
| Item | Galvalume Steel Roofing Sheet |
| Material | GL steel (DC51D+AZ) |
| Thickness | 0.15mm-0.8 mm |
| Overall Width | 700mm-1,250 mm |
| Overall Width | 600mm-1,050 mm |
| Al-Zn Coating Content | Aluminum (Al) 55%, zinc (Zn) 43.5%, silicon (Si) 1.5% |
| Al-Zn Coating Thickness | 60 g/㎡-185 g/㎡ |
| Length | As per your requirements |
| Surface Treatment | Passivation and fingerprint resistant treatment |
| Packaging | Standard export packaging |
Benefits of Galvalume Roofing Sheet:
1. Superior Corrosion Resistance
The aluminum layer offers galvalume steel excellent corrosion resistance. When the zinc is worn away, the aluminum forms a dense layer of aluminum oxide, preventing corrosion-resistant substances from further corroding the interior. So the corrosion resistance of GL sheet is 3 times that of galvanized sheet. The service life of GL roofing sheet is 2-6 times that of GI roofing sheet under the same circumstances.
2. High Heat Reflectivity
Its reflection coefficient is twice that of galvanized metal roofing sheet, which can reduce the indoor temperature in summer and reduce the power consumption of air conditioner. This feature makes it perfect for hot climates.
3. High-temperature Resistance
GL roofing sheet has good heat resistance and can withstand high temperatures of more than 300 degrees. Therefore, it can be used for a long time at high temperatures.
4. Smooth Surface & Uniform Appearance
Galvalume roofing sheet is smooth, silvery-white in color with uniform spangles. It looks beautiful and can be used directly. Hence, it is widely used in commercial and residential uses.
5. Great Formability & Adhesion
The adhesion between GL coating and paint is good, which makes it easy to paint. Also, it has great formability. That is, it is easy to stamp, cut, etc.
These features of galvalume roofing make it popular in many projects. At Wanzhi Steel, we promise to offer you quality roofing sheets. Besides, third party quality inspection is acceptable. So no matter where you will use the roofing sheets, you can try GL roofing panels.
