Galvalume Steel | Aluzinc Steel | AZ30-AZ150
According to ASTM A792 Standard, AZ50 galvalume means 0.50 ounces of aluminum zinc coating per square foot (double sides); AZ150 indicates the Al-Zn coating weight of 1.5 ounces per square foot double sides. Wanzhi Steel offers AZ30 to AZ150 galvalume finish. Generally, the higher the number, the thicker the Al-Zn coating.