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

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AH32/DH32/EH32 High-Strength Marine Steel Plates

Product Overview

AH32, DH32, and EH32 are advanced high-tensile marine steel plates certified by leading classification societies (e.g., RINA, ABS, DNV).

Designed for shipbuilding and offshore structures, these grades excel in strength, low-temperature toughness, and corrosion resistance, meeting the rigorous demands of modern maritime engineering.

Key Features

1. Mechanical Performance

• Yield Strength: ≥315 MPa (AH32/DH32/EH32)

• Tensile Strength: 440–570 MPa (AH32/DH32) / 440–590 MPa (EH32)

• Impact Toughness:
  • AH32: 34J at 0°C
  • DH32: ≥31J at -20°C
  • EH32: ≥34J at -40°C
• Elongation: ≥22%, ensuring superior ductility

2. Manufacturing Excellence

• Controlled Rolling & Cooling (TMCP): Ensures uniform mechanical properties and eliminates preheating for thickness ≤30mm

• Heat Treatment: Normalizing or quenching for thickness >50mm to enhance weldability

Applications

• Shipbuilding: Hulls, decks, bulkheads (AH32)

• ; LNG carrier components (EH32)

• Offshore Engineering: Oil rigs, subsea pipelines (DH32)

• Specialized Vessels: Cruise ships, naval vessels, and polar-class ships (EH32)

Certification & Quality Assurance

• Certified by RINA, ABS, DNV, and 9+ global societies

• Testing Protocols:
  • Ultrasonic inspection for internal defects
  • Z-direction performance tests to prevent lamellar tearing

Custom Processing Services

1. Shot Blasting: Delivers SA 2.5 surface finish for enhanced paint adhesion and corrosion resistance
2. Custom Sizing:
   • Width: Up to 4,800mm (ideal for large hull sections)
   • Thickness: 4–260mm

Industry Trends & Advantages

• Shift to High-Strength Grades: Demand is rising for 5m-wide plates and 200–300mm thick boards for mega-container ships

• Sustainability: Reduced material usage due to higher strength-to-weight ratios

Why Choose Our AH32/DH32/EH32 Plates?

• Global Compliance: Recognized by 116 flag authorities via RINA

• Tailored Solutions: From normalized DH32 for Arctic vessels to EH32 with -40°C impact resilience

• End-to-End Support: Full documentation, including mill test reports and classification certificates

Contact us for technical datasheets or customized orders.
Certified quality for safer seas.