C18000, also known as Copper Chromium Nickel Silicon Alloy, is a high-performance copper alloy recognized
for its excellent mechanical properties, corrosion resistance, and thermal conductivity. This alloy is
widely used in applications requiring high strength and durability under diverse environmental conditions.
Chemical Composition
C18000 is primarily composed of the following elements:
| Element |
Percentage (%) |
| Copper (Cu) |
97.0 - 99.0 |
| Chromium (Cr) |
0.05 - 1.0 |
| Nickel (Ni) |
0.5 - 1.5 |
| Silicon (Si) |
0.3 - 1.2 |
| Others |
≤ 0.5 |
Mechanical Properties
C18000 exhibits excellent mechanical properties suitable for various demanding applications:
| Property |
Value |
| Tensile Strength |
450 - 690 MPa |
| Yield Strength |
170 - 480 MPa |
| Elongation |
10 - 20% |
| Hardness (Rockwell B) |
80 - 98 |
| Electrical Conductivity |
20 - 45% IACS (International Annealed Copper Standard) |
| Thermal Conductivity |
60 - 110 W/m·K |
| Density |
8.75 g/cm³ |
Corresponding Country's Brand
C18000 is recognized under different brands in various countries. Here are some equivalents:
| Country |
Brand Name |
| USA |
Copper Chromium Nickel Silicon Alloy |
| UK |
- |
| Germany |
CuCrNiSi |
| Japan |
C1800 |
| China |
QCuCrNiSi |
Common Questions and Answers
1. What are the primary advantages of using C18000 in industrial applications?
Answer: C18000 offers a combination of high strength, good corrosion resistance, and
thermal conductivity. It is particularly suitable for applications requiring robust mechanical properties
and durability, such as in marine environments, electrical connectors, and industrial machinery.
2. Is C18000 suitable for welding and soldering?
Answer: C18000 can be welded and soldered using appropriate techniques. However, due to its
alloy composition, precautions should be taken to ensure that the welding or soldering process does not
adversely affect its mechanical or corrosion-resistant properties. Consultation with material experts is
recommended for specific applications.
3. What are the typical applications of C18000 in industry?
Answer: C18000 is commonly used in the manufacturing of electrical connectors,
corrosion-resistant components for marine environments, industrial machinery parts, and heat exchangers. Its
properties make it ideal for applications where strength, corrosion resistance, and thermal conductivity are
critical.
Summary Table
| Aspect |
Details |
| Chemical Composition |
Cu (97.0-99.0%), Cr (0.05-1.0%), Ni (0.5-1.5%), Si (0.3-1.2%), Others (≤ 0.5%) |
| Mechanical Properties |
Tensile Strength: 450-690 MPa, Yield Strength: 170-480 MPa, Elongation: 10-20%, Hardness: 80-98
Rockwell B, Electrical Conductivity: 20-45% IACS, Thermal Conductivity: 60-110 W/m·K,
Density: 8.75 g/cm³
|
| Country Brands |
USA: Copper Chromium Nickel Silicon Alloy, Germany: CuCrNiSi, Japan: C1800, China: QCuCrNiSi
|
| Applications |
Electrical connectors, marine environments, industrial machinery components, heat exchangers
requiring high strength, corrosion resistance, and thermal conductivity
|
C18000 Copper Chromium Nickel Silicon Alloy is a versatile and durable material suitable for a wide range of
industrial applications, offering superior mechanical properties, corrosion resistance, and thermal
conductivity.
