Heavy zinc mass hot dipped galvanized steel strip with premium corrosion barrier performance. Specially manufactured for harsh outdoor conditions, ground grounding systems, solar panel mounting structures, and coastal infrastructure projects. Thickness up to 4.5mm with a robust zinc finish.
Heavy Zinc Coating Hot Dipped Galvanized Steel Strip for Outdoor Infrastructure
Welcome to Authentic Steel – Your Premier Supplier of Heavy HDG Steel Strips
As a specialized steel strip manufacturer and exporter located near Tianjin Port, Authentic Steel produces premium hot dipped galvanized steel strips (HDG steel strips / heavy zinc galvanized strip) engineered specifically for heavy-duty outdoor infrastructure, grounding fields, and solar PV racking components. Operating dedicated continuous hot-dip galv lines and precision slitting machinery, our manufacturing plant delivers narrow steel strips featuring extreme zinc layer thickness, smooth surface passivation, and superior cathodic corrosion protection built to endure decades of severe atmospheric weathering and direct soil immersion.
Product Name: Hot Dipped Galvanized Steel Strip (HDG Narrow Coil / Heavy Zinc Strip)
Base Steel Grades: Structural carbon steel grades including DX51D, DX52D, S250GD, S350GD, S550GD, Q195, Q235B, and SS400
Thickness Range: 0.5mm – 4.5mm (Heavy-gauge cold rolled and hot rolled pickled base stock for high structural load-bearing capacity)
Strip Width Range: 30mm – 870mm (Custom longitudinal slitting according to exact client engineering drawings)
Zinc Coating Weight: Z275 to Z600 g/m² (Heavy double-sided hot-dip zinc coating reaching up to 85 microns in layer thickness)
Surface Passivation Options: Oiled, Chromated (Cr3+ eco-friendly passivation), Anti-Fingerprint (AFP) coating, or Dry
Edge Conditioning: Slit Edge, Deburred Edge, or Smooth Rounded Edge for safe manual handling and automated roll forming
Standard Compliance: ASTM A653, EN 10346, JIS G3302, GB/T 2518
Electrical Grounding & Lightning Protection: Heavy zinc mass guarantees low soil resistivity, superior electrical conductivity, and exceptional corrosion resistance when driven directly into rocky soils, moist clay, or embedded in concrete building foundations.
Outdoor Solar PV Mounting & Racking: High yield strength base metals combined with thick zinc alloy protection safeguard solar C/Z channel posts, tracking brackets, and ground screws against red rust in corrosive coastal and humid agricultural environments.
Cable Trays, Guardrails & Outdoor Enclosures: Provides long-term structural durability and self-healing sacrificial anode protection along sheared edges for highway W-beam guardrails, bridge conduits, and utility cable management systems.
Direct Mill Wholesale Advantages: Our direct manufacturing setup eliminates intermediate trading markups, giving global contractors, utility suppliers, and steel stocking distributors maximum budget efficiency and stable profit margins.
Strict Metallurgical Quality Control: Every production lot undergoes rigorous laboratory testing in our certified quality control facility to verify zinc layer mass (triple-spot weigh-strip-weigh test), tensile yield strength, elongation, and zero-flaking 180-degree bend adhesion.
Seaworthy Export Packaging & Port Logistics: Situated right near Tianjin Port, we utilize heavy-duty waterproof VCI paper, anti-corrosion plastic wrapping, high-tensile steel strapping, corner protectors, and eye-to-sky or eye-to-wall wooden pallets to guarantee rust-free ocean delivery.
Contact our international engineering team today to receive a mill-direct quotation, download certified Mill Test Certificates (MTC), or request free sample kits for your upcoming infrastructure bids! Our technical specialists are available 24/7 to assist with custom engineering requirements. We look forward to partnering with your procurement team to deliver cost-effective and durable steel solutions tailored to your regional project standards.
Contact Us for Instant Quotation:
Sales Specialist: Bella
Email: bella@authsteel.com / bella@wanlusteel.com
Mobile / WhatsApp / WeChat: +86 18920410870
