Characteristics Of Galvalumed Steel Coils

By Author: juniper
Total Articles: 17
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Thermal reflectivity of galvalumed steel coils
The GL Galvalumed Steel Coil made in China have a high heat reflectivity, which is twice that of galvanized steel coils, which are often used as insulation materials.

Heat resistance of galvalumed steel coil
The galvalumed steel coil has good heat resistance and can withstand a high temperature of more than 300 degrees Celsius. It is similar to the high temperature oxidation resistance of aluminum-plated steel sheets, and is often used in chimney tubes, ovens, illuminators and fluorescent lamps.

In the development of non-chromium passivators, stacking tests, humidity tests and neutral salt spray tests were carried out on trivalent chromium and chromium-free products. Two passivation products were selected for industrial testing and then industrial. The material after the test is provided to the customer for operational testing. According to industrial tests, customer operation tests and corrosion resistance of the product, a chromium-free passivating agent, a pure inorganic passivating agent based on diluted phosphoric acid and zinc phosphate, is selected. The passivation reaction is similar to the chromic acid treatment process.
https://www.chinahengzesteel.com/gl-galvalume-steel-coil/