High Conductivity C51100 Phosphor Copper - China Suppliers & Factory for High-Performance Elastic Copper Alloys
| Element | Content (%) |
|---|---|
| Cu | ≥ 99.5 (Rem) |
| Sn | 3.5 – 4.9 |
| P | 0.03 – 0.35 |
| Zn | ≤ 0.30 |
| Fe | ≤ 0.10 |
| Pb | ≤ 0.05 |
| Item | Values |
|---|---|
| Density | Approximately 8.86 g/cm³ |
| Electrical Conductivity | Approximately 20% IACS |
| Melting Point | Approximately 970 – 1060°C |
| Elastic Modulus | ≈ 110 GPa |
C51100 exhibits excellent elasticity recovery capability, making it suitable for manufacturing elastic components such as springs.
Low friction coefficient and outstanding wear resistance, suitable for sliding parts.
Stable performance in air, fresh water, and seawater environments, with strong corrosion resistance.
Excellent cold processing performance, good welding performance, and decent cutting performance.
The C51100 is widely used in industries that have high requirements for elasticity, wear resistance, and reliability. For example, in the electronics and electrical industry, it is widely applied to connector spring clips, relay contacts, switch components, etc.; in the precision machinery industry, it is widely used in springs, gears, bearings, etc.; in the industrial equipment industry, it is applied to instrument parts (also known as "instrument copper"), wear-resistant sliding components, etc.
Q: What is the chemical composition of C51100?
C51100 is primarily composed of Copper (Cu ≥ 99.5% remainder) alloyed with 3.5% to 4.9% Tin (Sn) and 0.03% to 0.35% Phosphorus (P), with trace amounts of Zinc, Iron, and Lead.
Q: What makes C51100 suitable for manufacturing springs?
C51100 exhibits excellent elasticity recovery capability and a high elastic modulus (~110 GPa), making it highly reliable for spring components and elastic clips.
Q: Can C51100 be used in marine environments?
Yes. C51100 offers good corrosion resistance and remains stable in air, fresh water, and seawater environments.
Q: What is the electrical conductivity of C51100?
The electrical conductivity of C51100 is approximately 20% IACS, which provides a good balance of electrical performance and mechanical strength for connectors and switches.
Q: How easy is it to process and weld C51100?
C51100 features excellent cold processing performance, good welding performance, and decent cutting performance, allowing it to be easily shaped into precision parts.




