C53200, also known as Leaded Gunmetal, is a copper alloy known for its excellent machinability, corrosion
resistance, and moderate strength. This alloy is widely used in applications where these properties are
crucial for performance and reliability.
Chemical Composition
C53200 is primarily composed of the following elements:
| Element |
Percentage (%) |
| Copper (Cu) |
84.0 - 86.0 |
| Tin (Sn) |
4.0 - 6.0 |
| Lead (Pb) |
4.0 - 6.0 |
| Zinc (Zn) |
≤ 0.30 |
| Others |
≤ 0.50 |
Mechanical Properties
C53200 exhibits good mechanical properties suitable for various applications:
| Property |
Value |
| Tensile Strength |
310 - 450 MPa |
| Yield Strength |
130 - 310 MPa |
| Elongation |
10 - 20% |
| Hardness (Rockwell B) |
60 - 80 |
| Electrical Conductivity |
15 - 20% IACS (International Annealed Copper Standard) |
| Density |
8.90 g/cm³ |
Corresponding Country's Brand
C53200 is recognized under different brands in various countries. Here are some equivalents:
| Country |
Brand Name |
| USA |
Leaded Gunmetal |
| UK |
- |
| Germany |
CuSn4Pb4Zn |
| Japan |
C5320 |
| China |
QSn4-4 |
Common Questions and Answers
1. What are the primary applications of C53200 in industry?
Answer: C53200 is commonly used in applications requiring good machinability, corrosion
resistance, and moderate strength. It finds applications in marine hardware, pump components, valve bodies,
and fittings.
2. Is C53200 suitable for use in seawater environments?
Answer: Yes, C53200 is suitable for use in seawater environments due to its corrosion
resistance, especially when compared to standard brass alloys. It is often used in marine hardware and
fittings where resistance to saltwater corrosion is essential.
3. How does C53200 perform in terms of machinability?
Answer: C53200 exhibits excellent machinability, making it easy to cut and shape into
precise components. It allows for high-speed machining operations with minimal tool wear, resulting in
cost-effective manufacturing processes.
Summary Table
| Aspect |
Details |
| Chemical Composition |
Cu (84.0-86.0%), Sn (4.0-6.0%), Pb (4.0-6.0%), Zn (≤ 0.30%), Others (≤ 0.50%) |
| Mechanical Properties |
Tensile Strength: 310-450 MPa, Yield Strength: 130-310 MPa, Elongation: 10-20%, Hardness: 60-80
Rockwell B, Electrical Conductivity: 15-20% IACS, Density: 8.90 g/cm³
|
| Country Brands |
USA: Leaded Gunmetal, Germany: CuSn4Pb4Zn, Japan: C5320, China: QSn4-4 |
| Applications |
Marine hardware, pump components, valve bodies, fittings, applications requiring machinability
and corrosion resistance
|
C53200 Leaded Gunmetal is a versatile copper alloy known for its machinability, corrosion resistance, and
moderate strength, making it suitable for various industrial applications where these properties are
essential for reliability and performance.
