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GALVALUME STEEL COIL
Number:
Up time:2022-04-02 14:56
Product description

The alloy coating of galvalume steel sheet is composed of about 55% aluminum, about 43.5% zinc, and about 1.5% silicon. Compared with traditional galvanized products, it has better corrosion resistance, heat resistance, heat reflectivity and other characteristics . The surface of the galvalume sheet has small and uniform spangle, bright color and high hardness. It can be coated with anti-fingerprint semi-permeable membranes of a variety of colors and widely used in home appliances, construction, structure, electrical and other industries.


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The surface of the galvalume steel sheet has a unique smooth, flat and gorgeous spangle, and the base color is silver white. The special coating structure makes it have excellent corrosion resistance. The galvalume sheet, of which the normal service life can reach 25 years has good heat resistance and can be used in a high temperature environment of 315 ° C; the adhesion between the coating and the paint film is good, and it has good processing performance, which can be punched, sheared, welded, etc. , ;The coating also have good surface conductivity.

The production process of galvalume steel sheet is similar to galvanized steel sheet and aluminized sheet, and it is a continuous molten coating process. The galvalume steel sheet with 55% Al-Zn alloy coating has superior corrosion resistance compared with the galvanized steel sheet of the same thickness when both sides are exposed to the same environment. The galvalume steel sheet with 55% aluminum-zinc alloy coating has good corrosion resistance, meanwhile it’s color-coated products have excellent adhesion and flexibility.


Features:

1.Heat Reflective:

The thermal reflectivity of galvalume steel sheet is very high, which can reach twice that of galvanized steel sheet, and people often use it as a thermal insulation material.

2.Heat Resistance:

The galvalume steel sheet has good heat resistance and can withstand a high temperature of more than 300℃, which is very similar to the Pyro-oxidation resistance of Aluminized steel Sheet. The galvalume Steel Sheet is often used in chimney pipes, ovens, luminaires and fluorescent lampshades. 

3.Corrosion Resistance:

The corrosion resistance of galvalume steel sheet is mainly due to the protective function of aluminum in it. When the zinc is worn away, the aluminum forms a dense layer of aluminum oxide, preventing corrosive substances from further corroding the inside of the steel sheet.

4. Economical Efficiency:

Because the density of the 55% Al-Zn is lower than that of Zn, the area of the galvalume steel sheet is more than 3% larger than that of the galvanized steel sheet under the same weight and coating thickness.

5.Easy to paint:

The galvalume steel sheet has excellent adhesion to the paint and can be painted without pretreatment and weathering.

The Aluzinc coating of the galvalume steel sheet has excellent paint adhesion, so it can be directly coated on advertising boards and general-purpose boards without pre-treatment such as weathering.

6. Galvanized steel sheet has a gorgeous surface of silvery white.

7. Galvalume steel and galvanized steel have similar processability and spraying property.


Application

Construction: Roofs, Walls, Garages, Soundproof Walls, Plumbing and Modular Houses, etc.

Automotive: mufflers, exhaust pipes, wiper attachments, fuel tanks, truck compartments, etc.

Home appliances: refrigerator back panel, gas stove, air conditioner, electronic microwave oven, LCD frame, CRT explosion-proof belt, LED backlight, electrical cabinet, etc.

Agriculture: pig houses, chicken houses, granaries, greenhouse pipes, etc.

Others: Thermal insulation cover, heat exchanger, dryer, water heater, etc.


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