Marine Grade Hot Dipped Steel Coil 1.0mm-4.0mm Thickness BS EN 10326
Hot-Dipped Aluminum Steel Coil 1.0-4.0mm Thickness Marine Grade BS EN 10326
Hot-Dipped Aluminum Steel Coil is a premium marine-grade material engineered to withstand corrosive saltwater environments while delivering unmatched structural integrity. Certified to BS EN 10326 and ISO 1461 standards, this coil features a 55% aluminum-zinc alloy coating applied via hot-dip galvanization, ensuring long-term protection against rust, UV exposure, and extreme weather. Available in 1.0–4.0mm thicknesses and widths up to 2,000mm, it is the go-to choice for shipbuilders, offshore platforms, and coastal infrastructure projects.
Key Selling Points:
- Marine-Grade Corrosion Resistance: Outperforms traditional galvanized steel by 4x in salt spray tests (ISO 9227).
- High-Temperature Durability: Withstands up to 315°C without coating degradation (EN 10326 compliant).
- Lightweight & Strong: Tensile strength up to 550 MPa (Grade S355GD), reducing vessel weight and fuel costs.
- Eco-Friendly: 100% recyclable and compliant with REACH, RoHS, and green shipbuilding standards.
- Custom Sizing: Precision slitting and cutting for seamless integration into marine designs.
2. Detailed Specifications
| Parameter | Details |
|---|---|
| Material | Aluminum-Zinc Alloy Coated Steel (55% Al, 43.4% Zn, 1.6% Si) |
| Base Steel Grade | S355GD, S275GD (BS EN 10326) / ASTM A792 SS Grade 50 |
| Coating Weight | 150–275 g/m² (AZ150, AZ200, AZ275) |
| Thickness | 1.0mm – 4.0mm (±0.05mm tolerance) |
| Coil Width | 600mm – 2,000mm (Custom slitting available) |
| Surface Finish | Smooth, spangled, or chromate-free passivation (CrVI-free) |
| Certifications | BS EN 10326, ISO 1461, NORSOK M-501, DNV-GL, IMO FTP Code |
| Primary Applications | Ship hulls, offshore oil rigs, desalination plants, coastal guardrails |
3. Advantages of Importing Our Marine-Grade Coils
Why Partner With Us?
- Cost Efficiency: 20-25% lower pricing than EU/UK suppliers with full BS EN 10326 compliance.
- Fast Delivery: 12–18 days lead time for bulk orders (MOQ: 20 tons), including slitting and certification.
- Quality Assurance: Third-party tested for coating adhesion (ISO 4624) and thickness uniformity.
- Custom Solutions: Pre-drilled, perforated, or embossed finishes for specialized marine components.
- Global Logistics: Seaworthy packaging with VCI anti-corrosion film and HS code compliance.
- Technical Support: Free CAD design optimization and corrosion resistance reports.
4. Marine & Offshore Applications
| Industry | Use Cases |
|---|---|
| Shipbuilding | Hull plating, bulkheads, deck panels, ballast tanks. |
| Offshore Energy | Oil rig walkways, wind turbine foundations, subsea pipeline covers. |
| Coastal Engineering | Port infrastructure, seawall reinforcements, tidal barrier systems. |
| Fishing & Aquaculture | Fishing vessel hulls, fish farm cages, trawler equipment. |
| Marine Transport | Ferry ramps, cargo ship containers, LNG carrier linings. |
| Renewable Energy | Wave energy converter frames, offshore solar platform supports. |
FAQ
1. Who are we?
We are based in Jiangsu, China, start from 2008,sell to Mid East(25.00%),South America(15.00%),Southeast Asia(15.00%),North America(10.00%),Africa(10.00%),Domestic Market(10.00%),Eastern Europe(5.00%),Oceania(5.00%),South Asia(5.00%). There is a total of about 31-50 people in our office.
2. How can we guarantee the quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
3. What can you buy from us?
Stainless Steel Plate/Stainless Steel Pipe/Stainless Steel Profile, Steel Plate/Steel Pipe,Aluminum Steel Coil
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

