Al-Zn-Mg Steel Coil

Product Overview

Zinc - aluminum - magnesium products are usually classified into three categories according to the aluminum content in the coating: low - aluminum products, medium - aluminum products, and high - aluminum products.They are characterized by high corrosion resistance and high cut - edge protection.

Product Specifications

Product Advantages

Mechanism of Corrosion Resistance

A large number of experiments verify that AZM products have excellent corrosion resistance and are the trend in the construction field. The reasons are as follows:

 · Zinc provides sacrificial protection;

 · Aluminum provides passivation protection;

 · Magnesium,together with zinc and aluminum are to reduce the consumption rate of the coating;

 · Mg2Si formed below the coating provides barrier protection inside the coating.

Ten-week cyclic Q-Fog test (Q-fog CCT)

After 10 weeks of cyclic corrosion comparison experiments, there was no obvious change on the surface of the Al-Zn-Mg samples (AM150 gsm and AM100 gsm), a little red rust appeared on the surface of the galvalume sample (AZ150 gsm), and a large area of rust appeared on the surface of the galvalume sample (AZ100 gsm).

Eleven-month marine environment exposure 

After 11 months of marine environment exposure experiments, there was no obvious change on the surface of the PPAM (AM50 gsm) sample, while salt frost appeared locally on the surface of the PPGL (AZ50 gsm)sample.

Fourteen-month outdoor acid rain environment exposure

After 14 months of exposure to outdoor acid rain environment, there was no obvious change on the surface of the Al-Zn-Mg samples (AM150 gsm and AM100 gsm), but the surface of the galvalume sample (AZ150 gsm) began to rust, and the surface of the galvalume sample (AZ100 gsm) had been rusted over a large area.

FAQ

Q: Can I customize the coil specifications ?

Yes. We support full customization of thickness, width, coating weight, paint color, and surface finish based on your specific requirements.

Q: What is the minimum order quantity ?

Our standard MOQ is usually 32 tons per specification.

Q: Do you provide samples before placing bulk orders?

Yes. We can provide free samples.

Q: What industries use your steel coils?

Our coils are used in construction, automotive parts, appliances, solar frames, storage tanks, and more.

Click  to learn more：

company profile

environmental friendly 

honors and qualifications

scientific research and innovation