Thickness: 4mm to 260mm, Width: 1200mm to 4000mm Length: 3000mm to 18000mm.

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FH32/FH36/FH40 High-Strength Marine Steel Plates

Product Overview

FH32, FH36, and FH40 are premium high-tensile marine steels certified by leading classification societies (e.g., RINA, ABS, DNV, CCS). Designed for extreme marine environments, these grades combine superior strength, exceptional low-temperature toughness, and corrosion resistance, making them ideal for critical offshore structures, polar-class vessels, and advanced maritime engineering.

Advanced Manufacturing

• Thermo-Mechanical Controlled Processing (TMCP): Ensures uniform mechanical properties and eliminates preheating for plates ≤30mm.
• Heat Treatment: Normalizing or quenching for thicknesses >50mm to optimize weldability.
• Surface Finishing: Shot blasting (SA 2.5 standard) and anti-rust coatings for corrosion resistance.

Applications

• Shipbuilding: Hulls, decks, and bulkheads (FH36); LNG carrier components (FH40); icebreaker vessels (FH32).
• Offshore Engineering: Oil rigs, subsea pipelines, and drilling platforms.
• Renewable Energy: Wind turbine foundations and underwater structures for offshore wind farms.
• Infrastructure: Coastal bridges, pressure vessels, and Arctic-class port facilities.

Certifications & Testing

• Compliance: Certified by RINA, ABS, DNV, CCS, LR, and 10+ global classification societies.
• Testing Protocols:
  • Ultrasonic inspection for internal defects.
  • Charpy V-notch impact tests at -60°C.
  • CTOD (Crack Tip Opening Displacement) testing for critical weld zones.

Customization & Dimensions

• Thickness: 2–120mm (up to 300mm for special orders).
• Width: 1,500–4,000mm (ideal for large hull sections).
• Processing: Precision laser/plasma cutting, bending, and welding-ready edges.

Industry Advantages

1. Extreme Low-Temperature Resilience: FH grades maintain toughness down to -60°C, outperforming standard marine steels.
2. High Strength-to-Weight Ratio: Enables thinner, lighter structures without compromising safety.
3. Sustainability: Reduces material consumption and CO2 emissions in large-scale projects.
4. Micro-Alloy Innovation: Nb/V/Ti additions enhance weldability and fatigue resistance in harsh conditions.

Why Choose FH32/FH36/FH40?

• Global Compliance: Recognized by 116 flag authorities via RINA and CCS certifications.
• Tailored Solutions: From normalized FH36 for Arctic platforms to FH40 with -60°C impact resilience.
• End-to-End Support: Mill test reports, Z-certification, and custom packaging.

Contact us for technical datasheets or project-specific requirements.
Engineered for the harshest seas, trusted by global shipyards.