C96200 is a typical high-strength aluminum bronze alloy, primarily composed of copper and aluminum, manufactured in accordance with the ASTM B369 standard. This alloy is widely used in high-performance engineering environments, including marine equipment, heavy machinery, and pump components, due to its outstanding strength, corrosion resistance, and wear resistance.

1. Chemical Composition (Typical Range, Weight Percentage)

• Copper (Cu)：78.0–81.0%

• Aluminum (Al)：9.0–11.0%

• Iron (Fe)：3.0–5.0%

• Nickel (Ni)：4.0–6.0%

• Manganese (Mn)：≤ 1.5%

• Silicon (Si)：≤ 0.10%

• Zinc (Zn)：≤ 0.50%

• Lead (Pb)：≤ 0.02%

• Other Impurities：≤ 0.50%

• This alloy is sometimes referred to as Nickel-Aluminum Bronze due to the addition of nickel, which further enhances its corrosion and heat resistance.

2. Physical and Mechanical Properties

• Density：~7.7–7.8 g/cm³

• Tensile Strength：550–700 MPa

• Yield Strength：≥ 250 MPa

• Elongation：≥ 10%

• Brinell Hardness：170–200 HB

• Thermal Conductivity：~40–60 W/m·K

• Electrical Conductivity：~8–12% IACS

• Note: Performance may vary depending on casting process and heat treatment.

3. Standards and Forms

（1）Standard Specifications:

• ASTM B369 (for aluminum bronze castings used in pumps, valves, etc.)

• SAE J461 (general classification for copper alloys)

（2）Available Forms:

Sand castings, centrifugal castings, static castings, etc.

4. Key Properties

• Exceptional Mechanical Strength: Suitable for components subjected to high mechanical loads.

• Outstanding Corrosion Resistance: Particularly effective in seawater, salt mist, and industrial atmospheres.

• Good Wear Resistance and Cavitation Resistance: Ideal for use in pump bodies, propellers, and sliding bearings.

• Stable High-Temperature Performance: Resistant to softening at high temperatures, making it suitable for heat exchangers or high-temperature working environments.

5. Main Applications

• Marine Industry：Propellers, pump bodies, valves, shaft sleeves

• Chemical Equipment：Pump housings, corrosion-resistant parts

• Metallurgical Machinery：Wear-resistant liners, carrier wheels

• Aerospace Manufacturing：High-load connectors, gearbox components

• Hydropower：Turbine components, gate rails

6. Machining and Casting

• Casting Performance: Good, suitable for large and complex-shaped parts.

• Machinability: Moderate, recommended to use carbide tools and sufficient lubrication.

• Weldability: Fair, can be welded using TIG/MIG processes, but care should be taken to control the embrittlement in the heat-affected zone.

7.Comparison with Other Copper Alloys

In comparison with other common copper alloys, C96200 high-strength aluminum bronze stands out in strength, corrosion resistance, and wear resistance. The specific comparison is as follows:

（1）C96200

• Strength: ★★★★★

• Corrosion Resistance: ★★★★★

• Wear Resistance: ★★★★☆

• Weldability: ★★☆☆☆

• C96200 performs exceptionally well in strength and corrosion resistance, making it ideal for high mechanical load and harsh environments. It has good wear resistance but lower weldability, requiring special attention to the heat-affected zone to prevent embrittlement during welding.

（2）C95800 (Nickel-Aluminum Bronze)

• Strength: ★★★★☆

• Corrosion Resistance: ★★★★★

• Wear Resistance: ★★★★☆

• Weldability: ★★★☆☆

• C95800 offers similar corrosion resistance to C96200, but with slightly lower strength and wear resistance. Its weldability is better, making it suitable for applications that require welding.

（3）C95400 (Aluminum Bronze)

• Strength: ★★★★☆

• Corrosion Resistance: ★★★★☆

• Wear Resistance: ★★★☆☆

• Weldability: ★★★☆☆

• C95400 has comparable strength and corrosion resistance to C95800, but its wear resistance is slightly lower. Its weldability is adequate for welding applications.

（4）C83600 (Tin Bronze)

• Strength: ★★☆☆☆

• Corrosion Resistance: ★★☆☆☆

• Wear Resistance: ★★☆☆☆

• Weldability: ★★★★☆

• C83600 has relatively low strength and corrosion resistance, as well as poor wear resistance, but it has excellent weldability, making it suitable for applications that require welding.

（5）In conclusion

C96200 leads in both strength and corrosion resistance, making it the best choice for high-load and harsh environmental applications over extended periods.

8. Conclusion

B369 C96200 alloy, with its outstanding combination of high strength, corrosion resistance, and wear resistance, is one of the ideal copper alloy materials for industrial applications. It is particularly well-suited for long-term use in marine environments, heavy-duty equipment, and harsh conditions. If you're looking for a copper-based casting material that balances both mechanical performance and corrosion resistance, C96200 is a reliable choice.

9. About Suzhou Bolaibao Metal

As a professional supplier of copper alloys, Suzhou Bolaibao Metal Group focuses on the research, processing, and customization of high-performance copper-nickel alloys. We provide C96200 cast copper-nickel products in accordance with international standards such as ASTM, GB, and EN, with wide applications in marine engineering, chemical equipment, and nuclear power cooling systems. With advanced casting processes and a rigorous quality control system, we ensure the long-term stability of our products in corrosive environments and offer one-stop solutions from material selection to technical support. Looking ahead, we will continue to integrate green manufacturing with high-end applications to help customers across industries achieve durable and reliable performance.

For more information about Cast copper nickel or other industrial materials, please feel free to contact Suzhou Bolaibao Metal's expert team.

• Read more: http://blbmetal.com

• Contact: +86 15370330359

• Email: sale@bolaibao1.com