Hot Dipped Galvalume Steel Coil DX51D+AZ
Hot Dipped Galvalume Steel Coil
DX51D+AZ
The surface coating of galvalume sheet is composed of 55% aluminum, 43.5% zinc and a small amount of other elements, and the surface of the aluminized zinc coating is a honeycomb structure under the microscope.
D: flat products for cold forming
X: The rolling state of the base plate is not specified
51: Serial number, no specific meaning, represents general use
D: hot dip code, for hot dip coating
AZ: aluminum-zinc alloy coating, aluminum-zinc alloy coating
Zinc is contained within the "honeycomb" of aluminum, in which case the zinc-aluminum coating, while also playing a role in anodic protection, is not easily electrolyzed due to the reduction of the zinc content of the aluminum parcel, so the role of anodic protection is greatly reduced. Once the galvalume steel coil is cut, in the cut edge of the basic loss of protection will soon rust, so the galvalume steel coil should be as little as possible to cut, once cut after the application of antirust paint or zinc-rich paint to protect the edges, in order to be able to make the service life of the plate is extended.
Heat Resistance
Corrosion Resistance
Economy
Easy To Paint
The galvalume steel plate has good heat resistance and can withstand high temperatures of more than 300 degrees Celsius. It is very similar to the high-temperature oxidation resistance of aluminized steel plates. It is often used in chimney pipes, ovens, luminaires and fluorescent lampshades.
The corrosion resistance of galvalume steel coils is primarily due to the protective function of aluminum. When zinc is worn, aluminium forms a dense layer of aluminium oxide, preventing corrosion-resistant substances from further corroding the interior.
Because the density of 55% AL-Zn is smaller than that of Zn, when the weight is the same and the thickness of the gold plating layer is the same, the area of the galvanized steel plate is more than 3% larger than that of the plated steel plate.
Galvalume has excellent adhesion to paint and can be painted without pre-treatment and weathering.The galvalume steel has a gorgeous silver-white surface.Hot dipped galvalume steel coil has similar processing performance and spraying performances.
Major Application
Agricultural use: pigsty, chicken coop, granary, piping for greenhouse, etc.
Others: heat-break insulation cover, heat exchanger, dryer, water warmer, etc.
Construction: roofs, walls, garages, sound walls, ducts, modular homes, etc.
Automobile: muffler, exhaust pipe, wiper attachment, fuel tank, truck box, etc.
Home Appliances: Refrigerator backs, gas stoves, air conditioners, electronic microwave ovens, LCD bezels, electrical cabinets, etc.
Packing
From the inside to the outside, there are inner oily paper, transparent plastic, outer oily paper, iron sheet, and steel strip. There is oil paper on the core. Or according to customer requirements.
We are good galvalume coil suppliers，looking forward to your consultation!
