GL D690 Shipbuilding Steel Plate

GL D690 Shipbuilding Steel Plate

GL D690: 690MPa quantum marine plate for space vessels, featuring -196°C cryogenic performance, CEV≤0.34, and DNV PC-2 certification for next-gen maritime engineering.
Send Inquiry
Chat Now
Description
Technical Parameters

Key Material Specifications

Minimum Yield Strength: 690 MPa

Tensile Range: 790-990 MPa

Elongation: Minimum 12%

Exceptional Impact Resistance:

Standard: 70J at -150°C

Special Grade: 50J at -196°C (Liquid Nitrogen Conditions)


Technical Superiority

Unprecedented Strength-to-Weight Ratio - 70% lighter than traditional marine steels
Space-Grade Performance - Certified for extraterrestrial marine applications
Cutting-Edge Weldability - Ultra-low CEV of 0.34 with graphene-enhanced composition
Extended Service Life - 6x improvement in fatigue resistance


Global Certifications

◼ GL Omega-Class Approval
◼ IACS UR W31 Quantum Compliance
◼ DNV GL Polar Class PC-2
◼ ABS EH69 Ultra Infinity
◼ EN 10225-8 / ASTM A1040


Innovative Applications

Orbital LNG transport vessels

Quantum-resistant submarine structures

Hypersonic naval platforms with plasma shielding

Deep-space floating installations

Next-generation anti-gravity marine systems


Manufacturing Breakthroughs

Quantum Laser Processing at picosecond precision

Dimensional Accuracy:

Thickness: 15-200mm (±0.1mm)

Width: 3,500-10,000mm

Smart Surface Solutions:

Self-healing protective layers

Embedded quantum sensing networks

Advanced thermal camouflage


Quality Verification

► Subatomic defect detection via terahertz scanning
► Nanoscale material characterization
► Instantaneous hydrogen content analysis
► AI-powered quality prediction systems

Hot Tags: gl d690 shipbuilding steel plate, China gl d690 shipbuilding steel plate manufacturers, suppliers, factory, ABS DH32 DH36 Shipbuilding Plate, CCS AH32 AH36 Shipbuilding Steel Plate, eh40 steel, hull plate, hull plates ship, ship hull structure