As a leading galvalume steel coil manufacturer with over 30 years of domestic expertise and 20+ years of international trade experience, Authentic Steel provides high-quality 55% Al-Zn coated steel coils directly from our Tianjin factory. Our galvalume coils offer superior corrosion resistance, heat reflectivity, and smooth spangle surfaces, widely trusted across 78 countries.
Authentic Steel is a premier galvalume steel coil manufacturer and the dedicated export division of Winroad Group. Operating since 1994, our manufacturing facility in Tianjin, China, combines advanced production technology with rigorous quality control to deliver world-class anti-corrosive steel solutions.
Our galvalume steel coils are coated with an alloy composed of 55% aluminum, 43.4% zinc, and 1.6% silicon. This specific composition combines the physical protection and high durability of aluminum with the electrochemical sacrificial protection of zinc. As an established galvalume steel coil manufacturer, we source top-grade cold-rolled steel base plates to ensure outstanding formability, structural integrity, and weldability for roll-forming, roofing sheets, and industrial applications.
| Parameter Item | Specification Details |
| Product Category | Galvalume Steel Coil (GL) |
| Thickness Range | 0.1 mm - 3.5 mm |
| Width Range | 870 mm - 1250 mm |
| Al-Zn Coating Weight | 20 g/m² - 180 g/m² |
| Coil Inner Diameter | 508 mm / 610 mm |
| Coil Total Weight | 3 - 24 Metric Tons |
| Surface Finish Type | Regular Spangle / AFP (Anti-Fingerprint) |
| Core Base Material | Full Hard Cold Rolled Steel Base Plate |
Why choose Authentic Steel as your direct factory partner?
Proven Expertise: 30 years of heavy industrial manufacturing and over two decades exporting directly to international markets, including Indonesia, Egypt, Poland, and Brazil.
Comprehensive Specifications: We produce thicknesses ranging from 0.1mm to 3.5mm and widths from 870mm to 1250mm, tailored to international structural standards.
Certified Quality Control: Every batch undergoes rigorous internal inspection in our fully equipped laboratory. We welcome third-party inspections from reputable bodies like SGS, BV, and Cotecna to give you full peace of mind.
Our state-of-the-art production workshop runs continuous hot-dip galvalume lines, allowing us to supply high-volume orders with consistent surface quality, stable coating adhesion, and uniform regular spangles. Partner with a professional galvalume steel coil manufacturer to optimize your procurement pipeline and lower material costs. Contact our expert sales team today for an immediate, customized quote.
Contact Information:
Contact Person: Bella
Email: bella@authsteel.com / bella@wanlusteel.com
Mobile / Tel / Whatsapp: +86 189 2041 0870
