Thermal Reflection:
People use it as material for heat-insulation for its thermal reflectivity as high as twice the galvanized steel sheet.
Heat-resistance:
The aluzinc steel coil could bear above 300ºC high temperature with its good performance in heat-resistance, quite similar to the aluminized steel sheet's performance in oxidation-resistance under high temperature. It is often used for chimney pipe, oven, illominator, and fluorescent lamp cover.
Corrosive-resistance performance:
The essential of galvalume steel coil's corrosive-resistance lies at aluminium's protective property. Once the zinc come under abrasion, the aluminium would form a layer of densified oxidized aluminium, preventing the interior from further corrosion.
Economical:
The density of 55%AL-Zn is smaller than Zn, therefore, with the same weight and thickness of coating, the galvalume steel sheet is 3% larger in area than that of galvanized steel sheet.
Easily painted:
There is perfect adhesiveness between galvalume sheet and paint, saving the process of pre-treatment and weathering for painting work.
The coating material on the galvalume steel sheet is outstanding in its adhesiveness, which could be directly tarring on the advertising board and commonly used board with no pre-treatment such as weathering process.
The galvalume steel sheet's surface is luxury in silver colored appearance.
Galvalume steel sheet and galvanized steel sheet are similar in performance of processability and painting.
| Product name | galvalume steel coil/PPGL coil/GL coil |
| Technique | Hot rolled/Cold rolled/Galvanized |
| Material | ASTM/AISI/SGCC/CGCC/TDC51DZM/TDC52DTS350GD/TS550GD/DX51D+Z Q195-Q345 |
| Grade | Q195 Q235 Q345SGCC SGCH SGC340 SGC400 SGC440 SGC490 SGC570SGHC SGH340 SGH400 SGH440 SGH490 SGH540DX51D DX52D DX53D DX54D DX55D DX56D DX57DS220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GDSS230 SS250 SS275 |
| Surface treatment | Galvanized, Color coated or as required |
| Surface | Big spangle/Medium spangle/Small spangle/Zero spangle |
| Thickness | 0.12-4mm |
| Width | 600-1250mm |
| Zinc coating | 40-275g/m2 |
| Coil ID | 508/610mm |
| Coil weight | 3-8 tons |
| Hardness | Soft hard(HRB60), Medium hard(HRB60-85), Full hard(HRB85-95) |
| Application | Construction industry, Shipbuilding industry, Vehicle manufacturing industry, Furniture industry, Electrical industry |