C54400 Copper Alloy - Tin-Phosphorus Bronze from Leading China Suppliers and Factory for Electronics and Engineering
Chemical composition
| Element | Content |
|---|---|
| Copper (Cu) | Rem |
| Tin (Sn) | 3.5-4.5 |
| Phosphorus (P) | 0.03-0.35 |
| Iron (Fe) | ≤0.10 |
| Lead (Pb) | ≤0.05 |
| Zinc (Zn) | ≤0.30 |
physical properties
| Project | Values |
|---|---|
| Density | 8.8 g/cm³ |
| Elastic modulus | 110–120 GPa |
| Thermal conductivity | 60–70 W/(m·K) |
| Melting point range | 900–1020℃ |
Main Performance Characteristics
Excellent elasticity and fatigue resistance
C54400 exhibits excellent elasticity recovery capability, maintaining stable performance even under repeated stress conditions, making it highly suitable for the manufacturing of elastic components.
Excellent wear resistance
The material surface has high hardness and excellent friction performance, suitable for applications such as bearings and sliding parts.
Outstanding corrosion resistance
It has good corrosion resistance in various environments including air, seawater, and various industrial settings, with a long service life.
Moderate electrical conductivity
Suitable for applications where electrical conductivity is not extremely demanding but mechanical performance also needs to be considered.
Application Fields
Frequently Asked Questions
Q: What is the primary composition of this copper alloy?
This alloy is a phosphor bronze primarily composed of Copper (Cu) as the base, with 3.5-4.5% Tin (Sn) and 0.03-0.35% Phosphorus (P) to enhance strength and wear resistance.
Q: Why is this material suitable for electrical connectors and springs?
It features excellent elasticity, high fatigue resistance, and moderate electrical conductivity, allowing components to maintain stable contact pressure and performance over repeated cycles.
Q: How does this alloy perform in corrosive environments?
It offers outstanding corrosion resistance in atmosphere, fresh water, and seawater, making it highly reliable for marine, industrial, and automotive applications.
Q: Can this material be used for heavy-duty friction parts?
Yes, due to its excellent wear resistance and high mechanical strength, it is widely used in manufacturing bearings, bushings, and other sliding mechanical parts.
Q: What are the physical properties like density and melting point?
The alloy has a density of 8.8 g/cm³, an elastic modulus of 110–120 GPa, and a melting point range of 900–1020℃.




