Galvalume coil’s atmospheric corrosion resistance is 2-6 times higher than that of the hot-dip galvanized sheet with the same coating thickness. At the same time, it has high temperature corrosion resistance similar to that of the hot-dip aluminum sheet. It can be used for a long time at a high temperature as high as 315℃, and a long-term use at a temperature of 500℃～600℃; it has good water resistance and soil corrosion resistance,excellent paintability and good processing performance, and its processability and weldability are similar to hot-dip galvanized sheet, can be processed by cold bending, stamping, etc., and has a good appearance . The popular galvalume coil coating is AZ40 AZ50 AZ70 AZ100 AZ150.
| Thickness | 0.12mm-3mm, according to customer’s requirement |
| Width | 750mm-1250mm, according to customer’s requirement |
| Standard | GBT2518-2008, ASTM A653,JIS G3302,EN 10142, and etc |
| Material Grade | DX51D,SGCC,G300,G550,SGCH570 |
| AZ Coating | AZ30-AZ275g |
| Surface Treatment | Passivation or Chromated, Skin Pass,Oil or Unoiled,or Antifinger print |
| Spangle | Normal(non-skinpassed) / Skinpassed / Regular / Minimized |
| Coil weight | 3-6 tons or as customer’s requirement |
| Coil inner Diameter | 508/610mm or as per your request |
| Hardness | Soft hard (HRB60), Mediun hard (HRB60-85), Full hard (HRB85-95) |
Product Advantages
1.Available for customized specification on customers’ request.
2.Perfect Corrosion Resistance. The service life of galvalume is 3-6times as long as that of galvanized surface.
3.Perfect Processing Performance. Fully meet the requirement of roll processing, stamping, bending, ect.
4.Perfect Light Refelectivity. The ability of reflecting light and heat is twice that of galvanizing.
5.Perfect Heat Resistance. Galvalume products can be used at 315 degree Celsius for a long time without discoloration.
6.Excellent adhesion between the paint. Easy to paint and can be painted without pretreatment and weathering.
Application
The galvalume steel coil is widely used on Construction, Steel Structure, Household Appliances, Transportation, Steel Structure, Roofing Sheet, Curtain Door.
Packing
1.Simple Package：Anti-water paper+steel strips.
2.Standard exporting package: Anti-water paper + plastic+galvanized sheet wrapper + strapped with three steel strips.
3.Excellent package: Anti-water paper + plastic film+galvanized sheet wrapper + strapped with three strapping strips+fixed on wooden pallets.
Loading:
1.By container
2.By bulk shipment.
Production process
Galvalume seel coil is Zn-Al alloy, and the coating composition is 55% Al, 43.3% Zn, and 1.6% Si. It has excellent corrosion resistance, this kind of steel is gradually replacing galvanized steel and is widely used all over the world.
Galvalume coil’s atmospheric corrosion resistance is 2-6 times higher than that of the hot-dip galvanized sheet with the same coating thickness. At the same time, it has high temperature corrosion resistance similar to that of the hot-dip aluminum sheet. It can be used for a long time at a high temperature as high as 315℃, and a long-term use at a temperature of 500℃～600℃; it has good water resistance and soil corrosion resistance,excellent paintability and good processing performance, and its processability and weldability are similar to hot-dip galvanized sheet, can be processed by cold bending, stamping, etc., and has a good appearance .