Zn-Al-Mg Coated Steel Supplier | Manufacturer - Huaxiao Metal

Zn-Al-Mg Coated Steel (ZAM Steel) is a high-performance metallic material with a composite coating of zinc (Zn), aluminum (Al), and magnesium (Mg). The coating forms a dense alloy protective film on the steel surface, offering 3–10 times greater corrosion resistance than traditional galvanized steel (GI), especially at cut edges, scratches, and bends.

This material is also known as:

ZAM coated steel
ZM coated steel
Zinc-Aluminum-Magnesium coated steel

As a professional supplier and exporter of zinc-aluminum-magnesium coated steel, Huaxiao Metal offers coils, plates, strips, custom processing, and color-coated substrates (specifically for PPGI/PPGL).

If you want to reduce maintenance costs while improving product durability, Zn-Al-Mg coated steel is the most reliable upgrade option.

Specifications:

Product Range

Thickness: 0.25 – 3.0 mm
Width: 600 – 1500 mm
Coating Weight: 40–150 g/m² (customizable up to 250 g/m²), such as: ZAM70 / ZAM100 / ZAM150
Substrate: DC01 / SGCC / S250GD / S350GD / S550GD
Surface Treatment: Light oil, anti-fingerprint, chemical treatment

Standard Comparison

EN 10346: ZM90 / ZM120 / ZM150
JIS / ASTM: Custom production available

What is Zn-Al-Mg Coated Steel?

Zn-Al-Mg Coated Steel, also known as ZAM/ZM steel, is a high-performance material made by coating a high-strength carbon steel substrate with a composite coating of zinc (Zn), aluminum (Al), and magnesium (Mg).

Zinc: Provides sacrificial anodic protection, acting as an anti-corrosion agent for the steel substrate.
Aluminum: Forms a dense oxide film, improving weather resistance and oxidation resistance.
Magnesium: Enhances the self-healing ability of the coating edges, maintaining corrosion resistance even after bending or scratching.

This coating combination makes Zn-Al-Mg steel significantly superior to traditional galvanized steel (GI/GL) in terms of corrosion resistance, weather resistance, and processability, making it particularly suitable for marine, coastal, high-humidity, and acid rain environments.

Features of Zn-Al-Mg Coated Steel

① Superior Corrosion Resistance (3–10 times that of galvanized steel)

Magnesium significantly enhances the self-healing ability of cut edges and welded areas, resulting in extremely high durability in coastal areas, acid rain zones, and outdoor structures.

② Excellent Edge Protection (Industry Best)

A self-healing Zn-Al-Mg film forms at cut edges, significantly slowing down corrosion, far superior to GI/GL.

③ Longer Outdoor Lifespan and Lower Maintenance Costs

Lifespan can be 5–20 years longer than galvanized steel, widely used in long-term corrosion protection applications such as photovoltaic brackets, railings, and building cladding.

④ Excellent Processability (No Powdering When Bending)

Highly suitable for stamping, bending, and roll forming, with strong coating adhesion.

⑤ Can Replace Some Stainless Steel and Aluminum Materials

In moderately corrosive environments, Zn-Al-Mg is a more economical material solution.

Looking for Reliable ZAM Coated Steel Suppliers?

Looking for Zn-Al-Mg coated steel suppliers or want to know the latest ZAM steel prices? Contact Huaxiao Metal now to request a quote or discuss your project requirements. Our team is ready to provide fast, reliable service and high-quality steel solutions.

Application of ZAM Coated Steel

Zinc-aluminum-magnesium coated steel is widely used in:

Photovoltaic mounting systems
Building roof panels and wall panels
Sound insulation panels and road railings
Agricultural buildings and livestock facilities
Electrical and equipment housings
Infrastructure components
Ventilation ducts and air conditioning structural components
Components for coastal and high-humidity environments

Contact us to send an inquiry or email us at [email protected] for the latest Al-Mg coated steel prices!

Why Choose us as your Al-Mg Coated Steel Supplier?

As a professional Zn-Al-Mg coated steel supplier, Huaxiao Metal provides:

Stable inventory and competitive ZAM coated steel prices
Customizable sheet and coil specifications
Reliable worldwide shipping and logistics solutions
Technical support for product selection and application
Extensive Global Export Experience
Provides Material Certificates (MTC), salt spray tests, and coating inspection reports.

FAQ – Zn-Al-Mg Coated Steel

Is zinc-aluminum-magnesium coated steel more expensive than galvanized steel?

The unit price is slightly higher, but the service life is longer, resulting in a lower overall investment.

Can Zn-Al-Mg coated steel be welded?

Yes, and the corrosion resistance of the welded parts is superior to that of galvanized steel.

Can you provide samples?

Free samples are available (shipping costs apply).

How is the price of Zn-Al-Mg coated steel calculated?

It depends on the coating weight, substrate grade, surface treatment, and quantity. Please contact us for an immediate quote.

Contact Us For Zn-Al-Mg Coated Steel Prices

Don’t compromise on quality! Whether you need Zn-Al-Mg coated steel sheets or coils for construction, automotive, or industrial projects, Huaxiao Metal has you covered.

Get a Quick Quote: Request your personalized Zn-Al-Mg coated steel prices now.
Custom Orders Welcome: Tailored thickness, width, and coating weight available.
Fast & Reliable Service: Global shipping and professional support.

Contact Huaxiao Metal today and secure the best ZAM steel solution for your project. Don’t wait – your high-quality steel is just one click away!