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GC Steel Series

Steel for Ultra-High-Pressure Vessels
Yield strength 1400-1600 MPa, elastic recovery rate > 99.8%, always operating in the elastic region.
Technical Specifications
Yield Strength1400-1600 MPa
Tensile Strength1700-2000 MPa
Elongation12-15%
Elastic Recovery Rate>99.8%
Modulus of ElasticityE ≥ 280 GPa
High-cycle fatigue life≥10⁶
Poisson's ratio0.26-0.27
Key Features
- Ultra-high strength with excellent toughness
- Ultra-elastic: Always operates within the elastic range, undergoes full elastic deformation, and leaves no plastic residual after unloading.
- Shape Memory Property: Fully recovers after unloading; container dimensions remain unchanged after tens of thousands of high-pressure cycles.
Application Areas
Ultra-high-pressure vessel (for high-energy-density solid-state batteries or chemical ultra-high-pressure reactors)Food ultra-high pressure sterilization, ambient temperature plant extractionComponents in heavy machinery and ship transmission systems that must withstand ultra-high pressure

High-Strength Non-Magnetic Fully Austenitic Hot-Rolled Stainless Steel
Yield strength ≥ 900MPa, fully non-magnetic, fine-grained austenitic microstructure achieved directly in the hot-rolled condition
Technical Specifications
Yield Strength≥900 MPa
Tensile Strength≥1100 MPa
Elongation≥15%
-84℃ impact energy≥58 J
MagneticNon-magnetic
Poor table performance≤8% (thickness ≤ 200mm)
Heat treatment
Key Features
- Fully non-magnetic
- Achieve a fine-grained fully austenitic microstructure with an average grain size of ≥9 directly in the hot-rolled condition, eliminating the need for subsequent heat treatment.
- Excellent low-temperature toughness and corrosion resistance
Application Areas
Non-magnetic ship deck, non-magnetic underwater vehicleSurgical steel or structural components

Low-alloy ultra-high-strength spring steel
Yield strength 1500-1560 MPa, fatigue life ≥50 thousand cycles, excellent low-temperature impact performance
Technical Specifications
Yield Strength1500-1560 MPa
Tensile Strength1800-1900 MPa
Elongation8-12%
-40℃ impact energy≥31J
Fatigue life≥50k
Key Features
- Full compatibility with leaf springs and coil springs
- Low-temperature impact resistance is suitable for extremely cold regions such as Northeast China and the polar areas.
- Weight Reduction: Leaf springs for heavy-duty trucks reduced by 50-80 kg; coil springs reduced by 30-40%
- Fuel Savings: 500-1000 liters/year, CO₂ Reduction: 1.2-2.5 tons/year
- Total cost of ownership reduced by 30-40%
Application Areas
Automotive leaf springs and suspension coil springsRailway vehicle springs, valve springsMine machinery springs and various elastic structural components
