Building B, Shenglong Erqi Center,
Xinghua South Street, Erqi District,
Zhengzhou, Henan Province, China

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inquiry02@wanzhisteels.com

Galvalume Steel

Galvalume steel refers to 55% Al-Zn coated sheet steel product, which is well suited for roofing and siding applications, as well as automotive, home appliances, furniture, etc. Due to its versatility, durability, beautiful appearance, galvalume steel is favored broadly. If you are looking for galvalume steel factory (GL), please contact Wanzhi Steel right now.

Wanzhi Steel has both GL coils and sheets for sale, which are available from AZ35 to 150. The thickness is from 0.12 to 1.2 mm and the width is from 600 to 1,250 mm. More than that, we also offer cutting, slitting, and profiling services. Welcome to contact us for samples or visit our factory on-site.

Galvalume Coil

Galvalume Coil

Galvalume Plain Sheets

Galvalume Plain Sheets

Galvalume Profile Sheets

GL Profile Sheets

SGS Test of Galvalume Steel

In order to meet our client’s requirements, our galvalume steel has been tested by SGS. The quality assurance specialists from SGS came to our factory to get samples and then tested the samples. Below are parts of the SGS test report.

SGS Test Result

SGS Test Result

Result of SGS Test

Result of SGS Test

Right Galvalume Steel for Your Needs

As shown above, the common types of GL steel include galvalume coil, galvalume corrugated sheet, and galvalume plain sheet. Thanks to its shiny spangled appearance, GL steel can be used as exterior panels without a layer of paint. Wanzhi Steel offers GL steel is of 0.2-1.2 mm in thickness and 600-1250 mm in width. Besides, the weight of the GL steel coil and the length of the flat sheet can be customized on the basis of your needs. Please talk to us for more details.

Galvalume Coil

Galvalume Coil

Galvalume Steel Sheets

Packaging of Galvalume Steel Sheets

Great Features of Galvalume Steel

1. Excellent Corrosion Resistance

Similar to galvanized steel, the Al-Zn coating will protect the base metal. Especially, when the zinc layer is worn,  there will be a layer of dense alumina to prevent the base metal from further corrosion. It is proved that GL steel will serve 3 times longer than GI steel does. That’s why GL steel is preferred in severe environments.

2. Great Heat Resistance

Aluminum-zinc coated steel has good heat resistance to withstand temperatures of more than 300 degrees Celsius, which is often used in chimney pipes, oven illuminators, and lampshades.

3. High Heat Reflectivity

The thermal reflectivity of GL is twice of galvanized steel’s so that it is often used as a heat-insulating material. So it is a better choice for roofing in the hot climate.

4. Beautiful Appearance

The surface of GL steel is smooth and with spangles, which makes it good-looking. So it can be used directly without painting.

Galvalume Steel Roof

Galvalume Steel Roof

GL Steel Wall

GL Steel Wall

Wide Applications of GL Steel

1. Construction Industry, for example, roofing, interior, and exterior wall panels, soundproof wall, pipe, garage, etc.
2. Automobile Industry, such as muffler, exhaust pipe, wiper attachment, fuel tank, truck containers, etc.
3. Home Appliances, for instance, refrigerator backboard, air conditioner, microwave oven, LED backlight, electric cabinet, etc.
4. Agricultural Uses, like greenhouse, granary, piggery, chicken house, etc.
5. Other Industries, such as heat exchanger, dryer, etc.

Home Appliances

Home Appliances

Warehouse

Warehouse

What Is Galvalume Steel?

Galvalume steel is similar to galvanized steel. While galvalume coating consists of 55% zinc, aluminum, and silicon to protect steel from oxidation. Due to the protection of aluminum, it is better able to resist rusting and corrosion. If the coating thicknesses of GL steel and GI steel are equal, the GL one will be more long-lasting to use in the same environment. The common manufacturing process is known as the hot-dipping process. Let’s review step by step.

1. Pre-treatment

Through the pre-treatment system, the contaminants on the surface of the base metal will be removed. It often includes degreasing, rinsing, pickling, etc.

Hot-dip Galvalume Process

Galvalume Process

2. Hot-dip Galvalume Process

After going through the annealing furnace, steel sheets are dipped into the Al-Zn pool. Then there is an air knife to remove the extra coating to keep the thickness of the coating.

3. Inspection & Coiling

The coated steel sheet will go through the quality control system and then be rolled up for sale.

So the structure of Galvalume steel includes:

  • Base metal (cold-rolled steel sheets)
  • Al-Zn coating layer (top and back sides).

You can also check the videos of the manufacturing process through videos.

Galvalume Steel Structure

Galvalume Steel Structure

Galvalume Sheet Price

In comparison, the galvalume sheet price will be higher than that of GI sheets. It is because of its great properties. Besides, the number of galvalume sheet manufacturers is less. Commonly, the price starts from $ 600 per ton. And the galvalume coil price keeps rising in recent months. Please contact us for the latest price.

Wanzhi Group is one of the top galvalume sheet manufacturers in China, which has 17 years of experience in this industry. We have our own factory, advanced production line, and professional teams. We welcome your visit sincerely.

Galvalume Steel Coils for Sale

Galvalume Steel Coils for Sale

Customer Visit Our Factory

Customer Visit Our Factory

Conclusion

Galvalume steel is a kind of superior material, especially for roofing and wall system. It is also ideally suitable for furniture, home appliances, automobile industry. Thanks to its wide applications and good workability, galvalume coils are great to invest in. Wanzhi Steel has galvalume coils in stock and also the monthly production can reach up to 10,000 tons to shorten the delivery period. While for end users, you can choose plain or corrugated galvalume sheets with different sizes and designs. Welcome to contact us for details!

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