Prime Hot-Dip Galvanized Steel Sheet (GI Sheet), thickness 0.1–3.5 mm, manufactured to ASTM A653, EN 10346, and JIS G3302 standards. Offers excellent corrosion resistance, reliable mechanical performance, and consistent surface quality for precision stamping, structural forming, and general fabrication.
Authentic Steel is a trusted global galvanized sheet metal supplier and exporter of high-performance zinc coated steel sheets, coils, and corrugated roofing panels. Engineered for superior atmospheric corrosion resistance, structural durability, and multi-year outdoor service, our metallic-coated steel sheets strictly conform to international manufacturing standards, including ASTM A653/A653M, EN 10346, JIS G3302, and GB/T 2518.
To meet diverse industrial, architectural, and agricultural engineering needs, we offer an extensive array of metallic alloy coatings, including traditional Continuous Hot-Dip Galvanized (GI), Galvalume / Aluzinc (GL - 55% Al-Zn), and next-generation Zinc-Aluminum-Magnesium (Zn-Al-Mg / ZAM) alloys for extreme coastal, marine, and high-ammonia environments.
Superior Cathodic Corrosion Protection: Dense, continuous zinc coating acts as a sacrificial anode, completely shielding the underlying carbon steel substrate from moisture, salt spray, and atmospheric oxidation.
Flexible Coating Mass Selection: Full coating coverage options ranging from light-commercial Z30 (30 g/m²) up to heavy-duty Z275 galvanized steel (275 g/m²) and Z600 (600 g/m²) for maintenance-free outdoor performance.
Versatile Surface Spangle Aesthetics: Engineered in zero spangle galvanized steel for ultra-smooth painting and powder coating, as well as regular, small, and big spangles for traditional metallic aesthetic roofing.
Exceptional Roll-Forming & Stamping Flexibility: Excellent coating adhesion ensures zero peeling, flaking, or micro-cracking during tight-radius cold bending, deep drawing, or high-speed corrugated roll forming.
Full Compliance & MTC Support: Delivered with official EN 10204 3.1 Mill Test Certificates (MTC) verifying chemical analysis, yield strength, tensile elongation, and coating mass test results.
Driven by superior mechanical formability, paint adhesion, and cut-edge corrosion resistance, our galvanized steel sheets serve critical global industries:
Architectural Roofing & Wall Cladding: Corrugated galvanized and Galvalume sheets provide lightweight, high-strength, weatherproof roofing panels for industrial warehouses, commercial complexes, and residential buildings.
HVAC Ductwork & Ventilation Equipment: Smooth zero-spangle galvanized sheets provide rigid structural backing, clean surface finishes, and corrosion resistance for air handling units, ventilation ducts, and electrical cable trays.
Agricultural & Enclosure Engineering: Heavy-zinc and Zn-Al-Mg coated sheets deliver outstanding chemical resistance against animal waste and soil moisture in grain silos, poultry housing, greenhouses, and outdoor control boxes.
Home Appliances & Automotive Stamping: High-precision flat sheets used in refrigerator back panels, washing machine cabinets, computer chassis, and internal automotive structural stampings.
Quality assurance is implemented throughout our continuous hot-dip coating production lines:
Triple-Spot Coating Weigh Test: Precise verification of double-sided coating mass (Z30 to Z600 / AZ150).
T-Bend & Mechanical Property Testing: 0T to 2T tight-radius bend evaluations ensuring zero coating delamination or surface cracking.
Tensile & Dimensional Inspection: Rigorous monitoring of yield strength, tensile elongation, and digital thickness/width tolerances.
Mill Test Certificate (MTC): Issued in full compliance with EN 10204 3.1 for total heat-number traceability.
For safe ocean delivery, all galvanized sheets are wrapped in heavy-duty seaworthy packaging: moisture-proof VCI anti-rust paper, waterproof plastic film, galvanized metal corner guards, and high-tensile steel straps mounted securely on heavy-duty wooden pallets or skids.
Contact our technical export team today to receive customized cutting options, physical samples, and real-time wholesale pricing for your upcoming orders!
WhatsApp: +86-137 8227 9845
E-mail: alice@authsteel.com
