55% Galvalume Steel Sheet Non AFP AZ30-AZ150
Galvalume steel sheet introduction:
Galvalume Steel Coil is the idea alloy of aluminum and zinc . The surface is bright and
clean ,the size is accurate ,the plate surface is straight , the
zinc flower is even and beautiful . After its surface is finished ,
it is a good substrate for making anticorrosive coating plates .
55% aluminum, 43.4% zinc and 1.6% silicon at 600 C. The whole
structure is composed of aluminum, one iron, one silicon and one
zinc, forming a compact four element crystal. Heat resistance of
the product is much better than ordinary galvaume steel coil , and
almost equal to the Aluminum coil.
Galvalume Steel Coil Features:
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 sheet could bear above 300℃ 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.
End products of Slitting Galvalume Steel sheet :
1. GL Corrugated sheet
2. GL Ceiling
3. GL Floor sheet...
Roofing sheets specification for Galvalume steel sheet :
Application range of galvaluem steel sheet :
Construction : the roof of the building, the exterior wall, the
garage door, the fence, the shutter.
Home appliance industry : oven, air conditioning and ventilation
system outside the cover, solar water heater, electrical
components.
Automobile industry : automobile muffler, exhaust pipes and a
catalytic converter heat shield, the bottom part of the car body,
road signs.
Industrial instrumentation : electric control cabinet, industrial
refrigeration cabinet, vending machine.
Galvalume steel sheet specifications :
| Products | 55% Clear Galvalume steel sheet |
| Standard | ASTM A653 , JIS G3321 , GB/T3830-2006 |
| Grade | G550 , G450 , G300,DX51D+AZ,DX52D+AZ, SGLCC,SGLCH |
| Thickness | 0.12mm-2.0mm |
| Width | 30mm-1500mm |
| Base Metal | Cold Rolled Steel |
| AL-Zinc Coating | AZ30-150g/sqm |
| Coil Internal Diameter | 508mm/610mm |
| Surface Treatment | Chromating , Oiled |
| Tolerance | Thickness:+/-0.05mm , Width:+5/-2mm , Total Quantity:+/-10% , Zinc
Coating:+/-10% |
| Surface Finish | Regular spangle ,Minimise spangle |
