High Conductivity C51100 Phosphor Copper from China Suppliers & Factory - High-Performance Elastic Copper Alloy
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 |
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 |
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.
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, 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.
Frequently Asked Questions
Q: What is the primary composition of C51100 phosphor bronze?
C51100 primarily consists of copper (≥ 99.5% remainder), tin (3.5 – 4.9%), and phosphorus (0.03 – 0.35%), with trace amounts of zinc, iron, and lead.
Q: What makes C51100 suitable for manufacturing springs?
C51100 features excellent elasticity recovery capability and an elastic modulus of approximately 110 GPa, making it highly reliable for elastic components like springs and connector clips.
Q: How well does C51100 conduct electricity?
C51100 has an electrical conductivity of approximately 20% IACS, balancing mechanical strength and electrical performance for switch and relay contacts.
Q: Can C51100 withstand corrosive environments?
Yes, C51100 provides stable performance and strong corrosion resistance in air, fresh water, and seawater environments.
Q: What are the processing characteristics of C51100?
It features excellent cold processing performance, good welding performance, and decent cutting properties, making it highly versatile for manufacturing complex precision parts.