Premium high strength zinc coated steel coil with modified alloy formulation. Delivers excellent tensile properties, severe bendability, and superior atmospheric corrosion resistance.
High Strength Alloyed Zinc Coated Steel Coil & Structural Metal Solutions
Welcome to Authentic Steel – Your Trusted Global Steel Manufacturer
As a leading steel manufacturer and global export enterprise headquartered near the major international shipping hub of Tianjin Port, Authentic Steel specializes in delivering advanced metal solutions, including high strength alloyed zinc coated steel coils, hot-dipped galvanized products, and engineered metal sheets. Backed by strategic supply chain partnerships with top-tier Chinese steel mills such as Baosteel, HBIS, Yanshan Steel, Rizhao, Anfeng, and Zongheng, our international sales network serves overseas industrial clients across more than 78 countries. We combine rigorous in-house quality control with state-of-the-art coating technologies to meet the stringent structural demands of modern construction, automotive manufacturing, and heavy engineering.
| Specification Parameter | Technical Detail |
| Product Name | High Strength Zinc Coated Steel Coil |
| Thickness Capability | 0.3 mm - 3.5 mm |
| Width Capability | 870 mm - 1250 mm |
| Coating Mass | 30 g/m² - 450 g/m² |
| Coil Weight Range | 3 - 24 MT |
| Coil ID | 508 mm / 610 mm |
| Steel Grade Options | Commercial Quality, Structural Quality (S280GD, S350GD, S550GD) |
| Bending & Formability | Excellent Zero Spangle / High Ductility |
| Export Packaging | Heavy-duty steel inner/outer ring protection |
Structural Construction & Framing: Our high strength zinc coated coils offer exceptional yield strength and load-bearing performance, making them ideal for C/Z purlins, steel framing structures, and earthquake-resistant building components.
Solar Racking & Renewable Energy Infrastructure: Engineered to withstand harsh outdoor environments, the dense zinc protective layer prevents premature red rust, securing decades of long-term durability for solar panel mounting systems.
Automotive Sub-Frames & Reinforcements: High-tensile ductility allows seamless cold forming and stamping for automotive structural reinforcements, chassis brackets, and safety enclosure components.
Mill-Direct Wholesale Pricing: By eliminating unnecessary trading intermediaries, our factory-direct pricing ensures global distributors and OEM fabricators maximize their cost efficiency and profit margins.
Custom Processing & Slitting: We provide custom length cutting, longitudinal slitting, protective oil coating, and anti-fingerprint (AFP) treatments tailored to your automated production lines.
Certified Quality Assurance: Every production batch undergoes comprehensive laboratory testing, verifying coating thickness, tensile strength, yield point, and bending adhesion before dispatch.
Seaworthy Export Packaging & Logistics: Located right near Tianjin Port, we guarantee fast container turnaround and heavy-duty export packaging (waterproof VCI anti-rust paper, steel edge protectors, and robust wooden pallets).
We manufacture high strength zinc coated steel coils in thickness gauges ranging from 0.3mm to 3.5mm, with customizable widths from 870mm to 1250mm. Coating weights are available from 30g/m² to 450g/m² based on targeted exposure levels. Every coil manufactured by Authentic Steel is subjected to continuous online gauge monitoring, surface defect detection, and rigorous laboratory tensile and bend testing.
Applications include automotive structural members, heavy-duty commercial racking systems, agricultural grain silos, structural purlins, and industrial building framing. Authentic Steel supports international customers with specialized packaging options, flexible order quantities, and reliable ocean freight logistics to major ports worldwide.
Contact our professional international sales and engineering team today to request a mill-direct quotation, download technical data sheets, or discuss custom specifications for your next industrial project! Our expert engineers are available 24/7 to assist with your custom inquiries, providing fast responses and reliable logistics support worldwide.
Email: bella@authsteel.com / bella@wanlusteel.com
Mobile/Tel/WhatsApp: +86 189 2041 0870
