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Product Description
Galvalume Sheet in coil uses the cold-rolled steel sheet as a substrate and solidified by 55% aluminum,
43.4% zinc and 1.6% silicon at 600 °C. It combines the physical protection and high durability of aluminum and the
electrochemical protection of zinc. It is also called aluzinc steel coilplate.
Advantage:
● Strong corrosion resistance, 3 times that of galvanized steel sheet.
● The density of 55% aluminum is smaller than the density of zinc. When the weight is the same and the thickness of the
plating layer is the same, the area of the galvalume steel sheet is 3% or larger than that of the galvanized steel sheet.
Product Name | Aluminum Zinc Plated Steel Plate |
Standard | AISI, ASTM, BS, DIN, GB, JIS |
Material | Q195 Q235 SGCC SGCH SGC340 SGC400 SGC440 SGC490 SGC570 SGHC SGH340 SGH400 SGH440 SGH490 SGH540 DX51D DX52D DX53D DX54D S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD |
Thickness | 0.12-2.0mm |
Zinc Layer | 20-120g/m2 |
Width | 600-1250mm |
Zinc Spangle | Big, Medium, Small, Zero |
Grade | Full hard/ CS-A, B, C/ FS-A/B/DQ/ SS-33, 37, 40, 50 and 80 Grades as per ASTM/EN/JIS/SASO |
Shape | Coil, Strip, Flat, Sheet, Plate, etc |
Application | Building Materials, Steel Structure, Home Construction, Roofing Sheets, etc |
Surface Treatment | Regular spangle, Minimum Spangle, Zero Spangle, Big Spangle |
Product Features | Good Performance, High Precise, High Straightness, High Evenness And Surface Finishing, Uniform Thickness, Easy For Coating Process, High Tensile Strength, High Pressing Property And Low Yield Point |
Surface Finish
Surface Structure | Mini Spangle | Big Spangle |
Weight of zinc coating | Zinc > 20g/sm | Zinc > 30g/sm |
Surface Finish | | |
When is Galvalume Used?
One of the most popular applications of Galvalume steel is for outdoor metal paneling and roofing. Galvalume is used because it has superior resistance to corrosion in outdoor environments than standard galvanized steel. It is able to resist corrosion when exposed to snow, ice, and rain.
When Should Galvalume Not Be Used?
Galvalume should not be used in alkaline environments. The aluminum in Galvalume does not hold up well to that type of environment, so galvanized steel may be a better choice in that instance. Also, Galvalume does not do well if it is damaged. If the panel will be subject to scratches and indentation, then galvanized steel may be better suited as the material for the application. Even fastener installation may be enough to damage the Galvalume coating.
Galvalume Steel Coil Coating Layer
