AZ30-AZ150 Aluzinc Steel

Our aluzinc steel products are available with a coating weight ranging from AZ30 to AZ150 g/m².

Equipped with shearing, slitting, and roll forming equipment, we can supply products in coil, sheet, and strip forms.

  • Thickness: 0.13 – 4 mm
  • Width: up to 1500 mm
  • Materials: DC01+AZ, DC03+AZ, DC04+AZ, DX51D+AZ, DX52D+AZ, DX53D+AZ, S220GD+AZ, S350GD+AZ, S550GD+AZ, etc.

Description

AZ30–AZ150 Aluzinc Steel, widely known in the industry as Galvalume, features a premium aluminum-zinc alloy coating (“AZ”). The numerical suffix (such as 30, 50, 75, 100, 120, or 150) represents the total coating weight across both sides, measured in g/m². Simply put: the higher the number, the thicker the coating, resulting in superior corrosion resistance and lasting protection. 1mm Aluminium Sheet S350GD+Z

Browse our inventory of galvalume coils for the complete range of AZ coating weights from AZ30 through AZ150, available in multiple widths and steel grades for your specific application.

At Bomis Steel, integrity is the cornerstone of our business. We are dedicated to providing you with high-quality Aluzinc steel products tailored to your needs. If you have any questions or require a quote, please don’t hesitate to contact us!

Product Specifications

Feature / Specification Details
Product Name Premium Aluzinc Steel (Galvalume)
Available Formats Coil, Sheet, Strip
Thickness 0.13mm – 4.0mm
Width Up to 1500mm 
Length Fully customizable to project requirements
Coating Mass AZ30 – AZ150 (g/m²)
Steel Grades DX51D-DX53D, S220GD-S550GD, DC01-DC04 (with +AZ), etc.
Compliance Standards ASTM, EN, GB, JIS, DIN
Surface Treatments Passivated (C), Anti-Fingerprint Anti Fingerprint Stainless Steel (AFP/O), Oiled (OIL), Passivated + Oiled
Coil Inner Diameter (ID) 508mm (20″) or 610mm (24″)
Coil Weight 3 – 15 Metric Tons (Standard customary: 5 – 10 MT)
Minimum Order (MOQ) 18 Metric Tons
Packaging Premium seaworthy export packing (plastic film, moisture-proof paper, and steel casing)

Advantages and Applications

Key Advantages of AZ30–AZ150 Aluzinc Steel

  • Excellent Corrosion Resistance
    Aluzinc steel delivers outstanding corrosion protection through a dual safeguard mechanism: aluminum forms a dense physical barrier, while zinc provides effective cathodic protection. Its corrosion resistance is significantly higher than conventional galvanized steel coils.
  • Superior Heat Resistance & Solar Reflectivity
    It maintains stable performance at continuous temperatures up to 315°C. Featuring a bright silver metallic finish, it also offers higher solar reflectivity than standard galvanized steel sheets.
  • Outstanding Formability
    With a highly ductile coating and premium steel substrate, our aluzinc steel withstands intensive bending, stamping, and roll forming without coating cracking or peeling.
  • Aesthetic & Versatile Surface
    Boasting a smooth, uniform finish with natural spangled appearance, it can be used directly for exterior applications or easily processed further — including lamination, pre-painting, and other value-added treatments.

Applications of AZ30-AZ150 Aluminum-Zinc Steel

Building & Construction

The Advantage: Superior weather resistance and high reflectivity.

Applications: Corrugated roofing sheets, insulation sandwich panel facings, and ventilation ducts for industrial plants, warehouses, and stadiums.

The application of aluminized zinc steel coils
Aluminum-coated zinc roof sheets

Home Appliances & Equipment

The Advantage: Excellent heat resistance and a sleek, premium finish.

Applications: Refrigerator back panels, washing machine housings, outdoor air conditioner casings, heat-resistant oven/water heater components, and electronic cabinet enclosures.

Agriculture & Outdoor Infrastructure

The Advantage: Long-lasting protection against harsh, exposed environments.

Applications: Grain storage silos, greenhouse frames, livestock shed roofs, outdoor billboards, traffic guardrails, and photovoltaic (PV) mounting system back panels.

The application of aluminized zinc steel coils
Aluminum-coated zinc photovoltaic support structure

Automotive & Transportation

The Advantage: High-temperature tolerance and robust structural integrity.

Applications: Mufflers, exhaust pipes, fuel tanks, shipping container side panels, and truck cargo compartment partitions.

Frequently Asked Questions (FAQs)

Q1: What is the difference between Aluzinc (Galvalume) and regular Galvanized Steel?

A: The main difference lies in the coating. Regular galvanized steel has a 100% zinc coating, while Aluzinc (Galvalume) features an alloy coating of 55% aluminum, 43.4% zinc, and 1.6% silicon. This unique composition gives Aluzinc superior corrosion resistance (up to 2-6 times longer than galvanized steel) and excellent heat reflectivity, making it ideal for roofing and outdoor applications.

Q2: What does “AZ30 to AZ150” mean, and how should I choose?

A: “AZ” stands for the Aluminum-Zinc coating, and the number indicates the total coating weight in grams per square meter (g/m²) across both sides of the steel.

AZ30 – AZ50: Suitable for general indoor use or mild environments.

AZ75 – AZ100: Great for standard outdoor construction and appliances.

AZ150: Highly recommended for harsh environments, coastal areas, or industrial zones requiring maximum corrosion protection.

Q3: Can I customize the dimensions, thickness, and surface treatment?

A: Yes! At Bomis Steel, we offer fully customizable solutions. We can manufacture Aluzinc steel coils and sheets with thicknesses ranging from 0.13mm to 4.0mm and widths up to 1500mm. We also provide various surface treatments, including Anti-Fingerprint (AFP), chromated, and oiled finishes to meet your specific manufacturing requirements.

Q4: What is your Minimum Order Quantity (MOQ) and typical delivery time?

A: Our standard MOQ is 18 metric tons (equivalent to one standard 20ft shipping container). For regular specifications, our lead time is typically 15 to 30 days after receiving the deposit, ensuring you get your materials on schedule.

Our Certificates

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