The hot-dip galvalume/ aluzinc steel coil is a kind of coated steel with the cold rolled steel as substrate, produced through applying Al-Zn coat on both faces by hot dip process.
In its coating, Al accounts for about 55%, Si 1.6%, Zn 43.4%. It enjoys both the physical protective feature and durability of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like figure, which are highly decorative.
EN 10346:2009, AS 1397-2011, ASTM A792M-10, JIS G 3321:2012
Normal (non-skinpassed) spangle, Regular spangle, Skin passed spangle, Minimized spangle
3~20 MT per coil
Standard Seaworthy Export Packing: inner packing with water proof paper, outer packing with galvanized steel or coated steel sheet, side guard plate, then wrapped by seven steel belt or as per customer's request
Steel Structure Architecture, Industrial Instrument, Home Appliances, Automobiles, ect.
Machinability: It can satisfy the processing requirements of rolling, coiling and others processes alike.
●?Thermal resistance: Common GI steel plate normally works under 230°C, and has its color changed at 250°C, however, Galvalume steel plate can sustain the enviornment at 315°C for long time.
●?High reflectivity: Reflection ability of heat and light is twice as much as those of hot-dip galvanized steel sheet, and its reflectivity is more than 0.70, exceeding 0.65 (required by the EPA Energy Star Standard), which is an ideal construction materials of saving energy.
●?High Corrosion Resistance: Galvalume steel sheet has better performance in corrosion resistance than GI sheet of the same thickness and its service life is 2-6 times longer than general GI sheet
Salt spray test comparison between GL and GI:
Examples of Applications:
Roofs and outside walls of civilian and industrial buildings, garage doors, fencings and window blinds.
Electric control cabinet, industrial refrigeration equipment, automatic vending machine
● Home Appliances
Outer clad sheets for washing machine, refrigerator, television, air conditioner and ventilation system, explosion-proof strip, solar water heater and appliance parts
Muffler, heat shields of exhaust pipe and catalytic converter, auto parts & accessories under the frame, signboard in highway