AZ150 Aluzinc Galvalume Steel Zinc Aluminized sheet coil Thickness 0.3 - 3.0mm Small Spangle

AZ150 Galvalume is a hot-dip aluminium-zinc alloy coating steel. The resulting coating has excellent corrosion resistance and can be used in harsh environments. This combination results in a durable and corrosion-resistant material that can be used in any application with high strength or hardness.

AZ150 galvalume is a high-quality, corrosion-resistant alloy commonly used in the construction and transportation industries. It’s highly resistant to rust, oxidation, and corrosion, making it an excellent choice for those who need to ship items or have them exposed to weather conditions.

What does AZ150 mean?

AZ150 means that in the triple spot test in the en 10346 standard, the minimum total coating mass on both surfaces of the aluminum-zinc alloy coating is 150g per square meter. Equivalent to Total Both Sides in ASTM a792 standard is 0.50 oz/square foot.

AZ150 coating thickness

AZ150 coating single surface coating thickness is 18 microns, double surface coating thickness is 36 microns.

This steel’s coating alloy is made up of 55% aluminium, 43.4% zinc, and 1.6% silica. The coating of this steel serves as general corrosion’s passivating barrier. The other coating layer allows the formation of galvanic element once the sheet is exposed to electrolyte or moisture. This exposure results in the flowing over of zinc ions and corrosion protection of exposed steel. It also helps protect the steel’s trimmed edges and scratches.

Here’s a table showing the EN 10142 equivalent of AZ150 galvalume steel coil thickness.

• 0.150 ± 0.11 mm
• 0.120 ± 0.10 mm
• 0.100 ± 0.09 mm
• 0.90 ± 0.08 mm
• 0.80 ± 0.08 mm
• 0.70 ± 0.08 mm
• 0.60 ± 0.06 mm
• 0.50 ± 0.06 mm

AZ150 galvalume is suitable for buildings or other facilities in extreme environments. It is extremely corrosion-resistant and weather-resistant and can reach a service life of more than 10 years.

AZ50 vs AZ150 Galvalume Steel

There are various thicknesses of galvalume sheet metal. The galvalume coating thickness is expressed by AZ+number. According to ASTM A792 Standard, AZ50 galvalume means 0.50 ounces of aluminum zinc coating per square foot (double sides); AZ150 indicates the Al-Zn coating weight of 1.5 ounces per square foot double sides. Wanzhi Steel offers AZ30 to AZ150 galvalume finish.

Generally, the higher the number, the thicker the Al-Zn coating. Coating thickness greatly affects the protective effect to the substrate. That is, the thicker the coating, the better the durability. Therefore, AZ150 will be more durable and more expensive than AZ50.

Due to the different densities of zinc and aluzinc coatings, AZ50 is not the same as G50. The thickness of G50 galvanized steel is 10.6 μm per side. While the Al-Zn layer thickness of AZ50 is about 20 μm per side. That’s why AZ50 will be more long-lasting and expensive than G50. Below is a picture for your reference.

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

Aluzinc steel has good heat resistance to withstand temperatures of more than 300 degrees Celsius, and it is often used in chimney pipes, oven illuminators, and lampshades.

3. High Heat Reflectivity

The thermal reflectivity of GL is twice of galvanized steel so it is often used as a heat-insulating material. Therefore, it is a better choice for roofing in a 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.

Wide Applications of GL Steel

1. Construction Industry, for example, roofing, interior, and exterior wall panels, soundproof wall, pipes, garages, etc.
2. Automobile Industry, such as mufflers, exhaust pipes, wiper attachments, fuel tanks, truck containers, etc.
3. Home Appliances, for instance, refrigerator backboard, air conditioner, microwave oven, LED backlight, electric cabinet, etc.
4. Agricultural Uses, like a greenhouse, granary, piggery, chicken house, etc.
5. Other Industries, such as heat exchangers, dryers, etc.

Is Galvalume Sheet A Good Roofing Material?

Definitely, yes. GL sheet is light in weight but strong enough, which is a new kind of roofing material. Also, due to its high thermal reflectivity, GL roofing sheet is preferred in hot climates. Moreover, it has a gorgeous and smooth appearance so it is widely used in commercial, civil, and public buildings.