High Conductivity C51100 Phosphor Copper - Premium Tin-Phosphorus Bronze from Top China Suppliers & Factory
1. Chemical Composition
| 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 |
2. Physical Properties
| Item | Values |
| Density | Approximately 8.86 g/cm³ |
| Electrical Conductivity | Approximately 20% IACS |
| Melting Point | Approximately 970 – 1060°C |
| Elastic Modulus | ≈ 110 GPa |
3. Material Characteristics
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.
4. Application Fields
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, and switch components. In the precision machinery industry, it is used for springs, gears, and bearings. In industrial equipment, it is applied to instrument parts (instrument copper) and wear-resistant sliding components.
A1: C51100 is best known for its excellent elasticity and high wear resistance, making it an ideal choice for durable springs and sliding components.
A2: Yes, it offers outstanding corrosion resistance in both fresh water and seawater, ensuring stable performance in maritime applications.
A3: The tin content in C51100 ranges from 3.5% to 4.9%, which contributes to its strength and corrosion resistance.
A4: Absolutely. Its combination of 20% IACS electrical conductivity and excellent elastic recovery makes it perfect for relay contacts and spring clips.
A5: It demonstrates excellent cold processing and welding properties, allowing for precision manufacturing of complex parts like gears and instruments.