GL D550 Shipbuilding Steel Plate

GL D550 Shipbuilding Steel Plate

GL D550: 550MPa future-marine plate for quantum vessels, featuring -120°C cryogenic performance, CEV≤0.38, and DNV PC0 certification for next-gen maritime engineering.
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Description
Technical Parameters

MATERIAL INNOVATION

Yield Strength: 550 MPa (minimum guaranteed)

Tensile Strength: 670-870 MPa

Elongation: ≥15%

Impact Toughness:

Standard: -100°C Charpy V-notch ≥55J

Enhanced Grade: -120°C Charpy V-notch ≥45J

ENGINEERING BREAKTHROUGHS

✔ 55% Weight Reduction Potential vs conventional ship steels
✔ Space-Grade Cryogenic Performance – Validated for extraterrestrial marine projects
✔ Nano-Engineered Weldability – CEV ≤0.38 (metamaterial alloy design)
✔ 4× Fatigue Life enhancement through patented microstructure


CERTIFICATION MILESTONES

✓ GL Quantum-Class Certification
✓ IACS UR W31 Infinity+
✓ DNV GL Polar Class PC0 (Maximum ice class)
✓ ABS EH55 Ultra+
✓ EN 10225-6 / ASTM A710


FUTURE-PROOF APPLICATIONS

Quantum LNG carrier containment systems

Arctic space launch marine platforms

Deep-sea hyperscale data centers

Neutrino detector pressure vessels

Plasma-shielded naval architectures


ADVANCED MANUFACTURING

Quantum Annealing Heat Treatment

Thickness Range: 10-120 mm (±0.2 mm tolerance)

Plate Dimensions: 2,500-6,000 mm width

Surface Technology Options:

Graphene-enhanced coating

Self-healing nanocomposite layer

Embedded sensor networks

QUALITY REVOLUTION:
▸ Neutron Holographic Defect Mapping
▸ Atomic-Scale Grain Boundary Analysis
▸ Hydrogen Quantum Tunneling Detection (H₂ ≤0.5 ppm)
▸ AI-Powered Digital Material Genome

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