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ASTM A792 Hot Dipped Galvalume Steel Coil Zinc Aluminizado Steel Material

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ASTM A792 Hot Dipped Galvalume Steel Coil Zinc Aluminizado Steel Material

Brand Name : JERO STEEL

Model Number : JS101

Certification : ISO9001 SABER

Place of Origin : China

MOQ : 20 tons

Price : US$620-680 Per Ton

Payment Terms : Western Union,MoneyGram,T/T,L/C

Supply Ability : 800 tons per day

Delivery Time : 15-30 work days

Packaging Details : 3 layers water proof standard export package

Standard : S550GD, ASTM A792/JIS G3321

Thickness : 0.12-1.0mm

Width : 600-1500mm

Aluminium : 55% content

Surface : Chromated/AFP

Coil Weight : 2-8 tons as the request

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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


Property Aluminum-Zinc Coated (AZ) Galvanized Steel (GI)
Corrosion Resistance Excellent (Al + Zn synergy) Good (depends on Zn thickness)
Cost 10–20% higher than GI Lower cost
Heat Resistance Up to 315°C Up to 200°C (Zn melts at 420°C)
Appearance Bright silver, more reflective Dull gray, prone to white rust



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.



ASTM A792 Hot Dipped Galvalume Steel Coil Zinc Aluminizado Steel Material





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