ASTM A792 Hot Dipped Galvalume Steel Coil Zinc Aluminizado Steel Material

Aluminum-zinc coated steel coil, also known as Aluzinc or Galvalume steel coil, is a high-performance

steel product with a metallic coating composed of aluminum, zinc, and silicon. It combines the superior

corrosion resistance of aluminum with the sacrificial protection of zinc, making it widely used in constru

-ction, appliances, automotive, and industrial applications.

Coating Composition

Typical Ratio: 55% aluminum, 43.4% zinc, and 1.6% silicon (e.g., Galvalume®).

Silicon improves coating adhesion and prevents excessive alloying with the steel substrate.

Coating Weight: Common grades include AZ60 (60g/m²), AZ100 (100g/m²), and AZ150 (150g/m²).

Key Features

♦ Superior Corrosion Resistance

Aluminum forms a protective oxide layer (Al₂O₃), while zinc provides cathodic protection.

2–6 times more corrosion-resistant than traditional galvanized steel (GI), especially in salty or humid environments.

♦ High-Temperature Resistance

Withstands up to 315°C (600°F) continuously, making it ideal for chimneys, ovens, and exhaust systems.

♦ Excellent Reflectivity & Aesthetics

Reflects ~75% of solar radiation, improving energy efficiency in roofing applications.

Can be painted (pre-coated) or embossed for decorative purposes.

♦ Formability & Strength

Suitable for deep drawing, bending, and roll forming, though harder than GI—may require adjusted

tooling.

Comparison: Aluzinc vs. Galvanized Steel

Our company’s mainly advantages

♦ We have rich export operation experience for this product, and we know about the common-used

spec in your country.

♦ We have long-term cooperation with our Forwarder Agent, and harbor reinforcement team,

they dedicated to the operation of these raw material product for over 10 years.

♦ For every order, we have strictly packing and loading demand, we also take samples from

the batch product, check the mechanical properties and the capacity of corrosion resistant.

Qingdao Jero steel company is a professional raw material integrated supplier, located in the beautiful costal city, Qingdao,

mainly product is steel material and Aluminum alloy sheet/coil.

We own a very comfortable work environment, and humanized management system, we hope that a job can not only bring

salary, ability, friendship, experience, but also bring happiness, passion, and the sense of achievement.

• We guarantee the product quality by our inspection team, professional equipment, that is the key point for getting a stable

 and sustainable development.

• We have strictly constraint for every step, such as production, package, inspection, delivery etc.

• Besides, we have excellent sales team, each member have over 4 years raw material export experience, they can judge the

 market changes to a certain extent and provide some reasonable advice for customers.

A stable customer can bring us good reputation and constantly economic benefit. For the past years, relying on a perfect quality

management system and a rigorous service attitude, we get a trusted brand image in the minds of customers.