C66300, also known as High Silicon Brass, is a copper alloy recognized for its high strength, excellent
corrosion resistance, and good machinability. This alloy is widely used in various industries where these
properties are essential for durability and performance.
Chemical Composition
C66300 is primarily composed of the following elements:
| Element |
Percentage (%) |
| Copper (Cu) |
78.0 - 80.0 |
| Silicon (Si) |
3.0 - 4.0 |
| Iron (Fe) |
≤ 0.15 |
| Lead (Pb) |
≤ 0.05 |
| Zinc (Zn) |
≤ 0.02 |
| Others |
≤ 0.50 |
Mechanical Properties
C66300 exhibits excellent mechanical properties suitable for various applications:
| Property |
Value |
| Tensile Strength |
450 - 620 MPa |
| Yield Strength |
275 - 490 MPa |
| Elongation |
10 - 25% |
| Hardness (Rockwell B) |
80 - 95 |
| Electrical Conductivity |
20 - 30% IACS (International Annealed Copper Standard) |
| Density |
8.47 g/cm³ |
Corresponding Country's Brand
C66300 is recognized under different brands in various countries. Here are some equivalents:
| Country |
Brand Name |
| USA |
High Silicon Brass |
| UK |
- |
| Germany |
CuSi3Mn1 |
| Japan |
C6630 |
| China |
QSi3-1 |
Common Questions and Answers
1. What are the primary applications of C66300 in industry?
Answer: C66300 High Silicon Brass is commonly used in applications requiring high strength,
corrosion resistance, and good machinability. It finds applications in valve components, pump parts,
fittings, and electrical connectors.
2. Is C66300 suitable for use in marine environments?
Answer: Yes, C66300 exhibits good corrosion resistance, making it suitable for marine
environments. It is often used in marine hardware, seawater valves, and fittings where resistance to
saltwater corrosion is important.
3. How does C66300 compare to other brass alloys in terms of machinability?
Answer: C66300 has good machinability, allowing for ease of cutting, shaping, and
finishing. It can be machined using standard techniques and tools, making it suitable for precision
components and fittings.
Summary Table
| Aspect |
Details |
| Chemical Composition |
Cu (78.0-80.0%), Si (3.0-4.0%), Fe (≤ 0.15%), Pb (≤ 0.05%), Zn (≤ 0.02%), Others (≤
0.50%)
|
| Mechanical Properties |
Tensile Strength: 450-620 MPa, Yield Strength: 275-490 MPa, Elongation: 10-25%, Hardness: 80-95
Rockwell B, Electrical Conductivity: 20-30% IACS, Density: 8.47 g/cm³
|
| Country Brands |
USA: High Silicon Brass, Germany: CuSi3Mn1, Japan: C6630, China: QSi3-1 |
| Applications |
Valve components, pump parts, fittings, electrical connectors, applications requiring high
strength and corrosion resistance
|
C66300 High Silicon Brass is a robust copper alloy known for its high strength, corrosion resistance, and
machinability, making it suitable for a wide range of industrial and marine applications where reliability
and performance are crucial.
