C54400 Copper Alloy - High Strength Tin-Phosphorus Bronze from China Suppliers and Factory
🧪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
- 📌 Electronic connectors, spring clips, terminals
- 📌 Switch and relay components
- 📌 Precision elastic elements
- 📌 Automobile and electrical equipment parts
- 📌 Bearings, bushings, sliding parts
❓Frequently Asked Questions
Q: What is the primary chemical composition of this material?
The material is primarily composed of Copper (Cu) as the remainder, with Tin (Sn) content between 3.5-4.5% and Phosphorus (P) between 0.03-0.35%, along with trace elements of Iron, Lead, and Zinc.
Q: What are the key physical properties of C54400 Phosphor Bronze?
It has a density of 8.8 g/cm³, an elastic modulus of 110–120 GPa, a thermal conductivity of 60–70 W/(m·K), and a melting point range of 900–1020℃.
Q: Why is this alloy suitable for spring and connector applications?
Due to its excellent elasticity recovery capability and outstanding fatigue resistance, it maintains stable mechanical performance under repeated stress conditions, making it ideal for precision elastic elements and connectors.
Q: Can this material be used in marine or industrial environments?
Yes, it features outstanding corrosion resistance in various environments including air, seawater, and diverse industrial settings, ensuring a long service life for components.
Q: What are the typical mechanical applications for this alloy?
It is commonly used for heavy-duty and friction-prone parts such as bearings, bushings, sliding parts, automobile components, and electrical equipment parts due to its excellent wear resistance and surface hardness.




