Galvalume steel is also called Aluminum-Zinc Alloy Coated Steel, Zincalume steel, aluminized zinc steel (aluzinc steel), SGLC. The galvalume metal is composed of 55% aluminium, 43.4% zinc and 1.6% silicon solidified at a high temperature of 600 ° C. Its whole structure consists of aluminium-iron-silicon-zinc, forming a dense quaternary crystal of an alloy.From the point of view of the degree of coating, the Galvanized Steel Coil is mainly the zinc plated on the coating, while the coating of the galvalume steel coil not only has zinc, but also has an extra part of aluminum.Galvalume steel sheet (coil) has better atmospheric corrosion resistance.
Galvalume Steel Sheet has excellent characteristics: strong corrosion resistance, 3 times that of pure Galvanized Steel Sheet; the surface has beautiful spangles, which can be used as building exterior panels.
The corrosion resistance of "Galvalume Steel Coil" is mainly because of aluminum, the protective function of aluminum. When the zinc is worn away, the aluminum forms a dense layer of aluminum oxide, preventing corrosion-resistant substances from further corroding the interior.
Aluzinc Steel Coil,Aluminum-Zinc Steel Coil,Zincalume Steel Coil,Aluminized Zinc Steel Coil Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhousteel.com
According to preliminary statistics, China's LED sales output will exceed 150 billion yuan in 2010, twice as much as in 2008, and will continue to grow at a rate of 30% each year. It is understood that only one province in Guangdong is expected to reach 120 billion yuan by 2012. In 2010, the government proposed and implemented a low-carbon economic policy after the Copenhagen conference. After the two conferences, the "Eleventh Five-Year Plan" green lighting development plan unveiled, making the LED semiconductor lighting industry quickly become a leader in the lighting industry. Lighting companies have smelled the power and market for energy subsidies.
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