GL Corrugations

GL Corrugated Roofing Sheet Factory

Galvalume steel plate & sheet owns the most premium corrosion resistance property among the coating metals with the metal-plating ratio. The aluminum-zinc alloy coating structure of the galvalume steel sheet is composed of 55% aluminum, 43.4% zinc and 1.6% silicon which is solidified at 600 ℃ temperature. Its whole structure is composed of aluminum-iron-silicon-zinc to form a dense quaternary crystal. Thus forming a layer of strong anti-corrosion factor to prevent corrosive penetration through the barrier.

1. More fluent and smoother surface and superior corrosion resistance property than hot dipped zinc galvanized steel coils.

2. Excellent heat resistance durable ability and anti-oxidation performance. It can bear temperature under 315℃ without tarnish and can be applied normally under 500℃ for long period. They could reject erosion from water and mud. They are the ideal steel materials for water heating machines, food dehydrators, exhausted tubes, automobile mufflers. And its heat reflection ratio is more than 75% which is double of zinc coated galvanized steel. Heat resistance of the 55% aluminum-zinc alloy steel plate is better than that of the galvanized steel sheet, similar to the high-temperature oxidation resistance of the aluminum plate.

3. Excellent performance for coating and machinability. It is highly adhesive to organic color pre painted coatings, and it could be welded and processed as the zinc galvanized steel metals. And it could be cold bent and punching while getting beautiful outlooks. It is also cost savings as a smaller amount of base metal consuming for the same thickness, as aluminum is lighter than zinc density.

It also usually gets PVDF resin to get superior chalk resistance and gloss retention as well as stain and chemical resistance. This PVDF (Poly Vinyl Irene Fluoride) is softer than polyester, making it highly formable without risk of cracking. This pretreatments and primers along with superior paint coating have increased product warranties dramatically.

Galvalume Steel Sheet Specification

Standard as of JIS G3312 & ASTM A792M;

Thickness 0.23mm-3.0mm;

Width 700-1250mm;

Coating mass AZ50-AZ300;

Regular and Zero Spangle;

Coil ID 508-610mm;

Treatment as Skin-passed, Chrome, Oiled, AFP;

Coil Weight of 3-15MT.

What Is Galvalume Steel

Main Advantage of Galvalume Steel

Industrial Applications

Since galvalume steel  is manufactured using the best possible raw materials, it is used in numerous types of industries, which include:–Petrochemical，Paper，Construction，Mechanical Engineering
Having a compact design and elevated strength and durability, this  is put through numerous tests to ensure it can meet various industry standards. Specific application for galvalume steel coil are: Automotive Mufflers, Roofing and siding usage, Furniture, Appliances like food dehydrators, tubes, computer cases, exhausted gutters. structural sections, composite panels, microwave, washing machine, refrigerators, etc.

One of the biggest benefits of galvalume steel coil is that much of it comes in color-coated assortments, making it a very versatile industrial material. For example, when used in marine and industrial projects, the corrosion rate of color-coated coil is up to four times better than other types of coil. And when this coil is used in roofing applications, it has an exceptionally long life, often lasting well over 30 years before even the most minor maintenance is needed.

Galvalume Steel Sheet Temperature Resistance

Since galvalume steel sheet is used in numerous applications where the environment may have extremes in temperature, humidity, and other factors, it’s been tested to make sure it can resist extremely high temperatures when used in virtually any type of application. With most types of galvalume steel coil, testing has shown it can resist temperatures as high as 599 degrees Fahrenheit without experiencing surface damage or discoloration, resulting in excellent paint adhesion.

Galvalume Steel Sheet Other Uses

Along with being used for roofing, marine, and other industrial applications, this coil is also able to be used in many other ways as well. Because it adheres so well to paint and resists corrosion, it has in recent years been used in home electrical appliances and buildings, showcasing its versatility. Possessing an iron-zinc alloy layer that makes it highly workable, it can be used in appliances that are smaller and smaller. Because of this, it’s viewed by many within mechanical engineering as an all-purpose material.

Take Advantage of the Versatility

Whether you are a mechanical engineer, construction project engineer, or another industry prof.