Galvalume steel plate is composed of aluminum-zinc alloy structure, which is composed of 55% aluminum, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600°C. Its entire structure is composed of aluminum-iron-silicon-zinc, forming a dense quaternary crystal. of an alloy.
Definition:
Galvalume-coated steel plate is an important alloy material often used in daily life.
Characteristic:
Galvalume steel sheets have many excellent properties: strong corrosion resistance, 3 times that of pure galvanized sheets; beautiful zinc flowers on the surface, and can be used as building exterior panels.
Corrosion resistance:
The corrosion resistance of "galvalume steel coil" is mainly due to the protective function of aluminum. When zinc is worn, aluminum forms a dense layer of aluminum oxide, preventing corrosion-resistant substances from further corroding the interior.
Heat resistance:
Aluminum-zinc alloy 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.
Heat Reflectivity:
The heat reflectivity of galvanized steel sheet is very high, twice that of galvanized steel sheet. People often use it as heat insulation material.
Economical:
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 sheet is more than 3% larger than that of the galvanized steel sheet.
Use:
Construction: roofs, walls, garages, soundproof walls, pipes, modular homes, etc.
Automobiles: mufflers, exhaust pipes, wiper accessories, fuel tanks, truck boxes, etc.
Home appliances: refrigerator back panels, gas stoves, air conditioners, electronic microwave ovens, LCD frames, CRT explosion-proof belts, LED backlights, electrical cabinets, etc.
Agricultural use: pipes for pig houses, chicken houses, granaries, greenhouses, etc.
Others: heat insulation cover, heat exchanger, dryer, water heater, etc.
Precautions for use
Storage: It should be stored indoors such as a warehouse, kept dry and ventilated, and should not be left in an acidic climate for a long time. When storing it outdoors, it must be protected from rain to avoid oxidation stains caused by condensation.
Transportation: To avoid external impact, SKID should be used to support steel coils on transportation vehicles to reduce stacking and take rainproof measures.
Processing: When shearing, the same lubricating oil as the aluminum plate must be used. When drilling or cutting galvanized steel sheets, scattered iron filings must be removed promptly.
