C95700 is a copper-based alloy widely used in industrial applications due to its excellent mechanical properties, corrosion resistance, and wear resistance.

1. Chemical Composition of C95700

Copper (Cu): 78-82% (Base material)

Aluminum (Al): 8.5-9.5% (Enhances strength and corrosion resistance)

Iron (Fe): 3.5-4.5% (Increases hardness and wear resistance)

Nickel (Ni): 4.0-5.0% (Improves corrosion resistance and high-temperature performance)

2. Key Properties of C95700

• High Strength

C95700 offers excellent mechanical strength, making it suitable for high-load and impact-resistant applications.

Its tensile strength typically ranges from 620 to 760 MPa.

• Exceptional Wear Resistance

With iron and nickel in its composition, C95700 performs well in friction-intensive and high-wear environments, making it ideal for wear-resistant components.

• Superior Corrosion Resistance

Exhibits strong resistance to seawater, acidic environments, and industrial corrosive media.

Forms a dense aluminum oxide layer on the surface, further enhancing corrosion resistance.

• Excellent Fatigue Resistance

Capable of withstanding long-term cyclic stress, making it ideal for dynamic load-bearing components.

• Outstanding Castability

The alloy has good casting performance, allowing for the production of complex-shaped components.

Heat treatment is often required after casting to optimize its properties.

• High-Temperature Stability

Maintains high strength and corrosion resistance at elevated temperatures, making it suitable for high-temperature applications.

3. Applications of C95700

• Marine Industry

Used in propellers, pumps, valves, bearings, and seals due to its excellent seawater corrosion resistance.

• Heavy Machinery

Applied in gears, bushings, and high-load components that require superior wear resistance and durability.

• Chemical Processing Equipment

Used in corrosion-resistant pumps, valves, and pipelines, ensuring longevity in harsh chemical environments.

• Aerospace Industry

Ideal for high-strength, high-temperature components that must endure extreme conditions.

• Energy Sector

Found in power plants and nuclear facilities, where components require both wear and corrosion resistance.

4. Processing and Heat Treatment of C95700

（1）Processing Techniques

• Casting Methods

1. Sand Casting: Suitable for complex shapes and large-sized components.

2. Centrifugal Casting: Ideal for cylindrical components like bearing bushings.

3. Investment Casting: Used for high-precision, smooth-surface parts.

• Machining
  

1. Tool Selection: Use carbide or coated tools to extend tool life.

2. Cutting Parameters: Employ low cutting speeds and high feed rates to minimize tool wear.

3. Coolant Usage: Apply ample coolant to prevent overheating and part deformation.

• Welding

1. TIG/MIG Welding

2. Brazing

3. Post-Weld Heat Treatment

（2）Heat Treatment

• Solution Treatment

1. Temperature: 850°C – 900°C

2. Holding Time: 1-2 hours (depending on part size and thickness)

3. Cooling: Rapid quenching (water or oil) for uniform solid solution formation.

• Aging Treatment

1. Temperature: 450°C – 550°C

2. Holding Time: 2-4 hours

3. Cooling: Air cooling for optimal mechanical properties.

5. C95700 vs. Other Copper Alloys

C95700 (Aluminum Bronze)：

• Strength：Very High

• Wear Resistance：Excellent  

• Corrosion Resistance：Good (Especially for Seawater)  

• Applications：Marine, Heavy Machinery, Chemical Processing

Tin Bronze (e.g., C90500)：

• Strength：Moderate   

• Wear Resistance：Good  

• Corrosion Resistance：Good  

• Applications：Bearings, Gears, Valves

Copper-Nickel Alloy (e.g., B505)：

• Strength：High  

• Wear Resistance：Moderate  

• Corrosion Resistance：Excellent (Best for Seawater)  

• Applications：Excellent (Best for Seawater)

6. Conclusion

C95700 is a versatile aluminum bronze alloy known for its high strength, wear resistance, and corrosion resistance, making it particularly well-suited for the marine, heavy industry, and chemical sectors. Its superior performance ensures reliability in high-load and harsh environments, making it an ideal material choice for demanding applications.

We offer raw materials and metal processing services for C95700 and other alloys. Feel free to contact us for inquiries!Email: sale@bolaibao1.com