C17500, also known as Beryllium Copper Alloy 3, is a high-strength copper alloy renowned for its excellent
hardness, electrical conductivity, and thermal conductivity. This alloy is widely utilized in applications
requiring precise mechanical properties and high performance under challenging conditions.
Chemical Composition
C17500 is primarily composed of the following elements:
| Element |
Percentage (%) |
| Copper (Cu) |
97.6 - 99.0 |
| Beryllium (Be) |
0.4 - 0.6 |
| Cobalt (Co) |
0.20 - 0.60 |
| Others |
Balance |
Mechanical Properties
C17500 exhibits excellent mechanical properties suitable for various demanding applications:
| Property |
Value |
| Tensile Strength |
750 - 1250 MPa |
| Yield Strength |
590 - 1075 MPa |
| Elongation |
5 - 15% |
| Hardness (Rockwell B) |
85 - 98 |
| Electrical Conductivity |
22 - 45% IACS (International Annealed Copper Standard) |
| Thermal Conductivity |
140 - 200 W/m·K |
| Density |
8.80 g/cm³ |
Corresponding Country's Brand
C17500 is recognized under different brands in various countries. Here are some equivalents:
| Country |
Brand Name |
| USA |
Beryllium Copper Alloy 3 |
| UK |
- |
| Germany |
CuBe2NiCo |
| Japan |
C1750 |
| China |
QBe2NiCo |
Common Questions and Answers
1. What are the primary advantages of using C17500 in industrial applications?
Answer: C17500 offers exceptional hardness, high tensile strength, and good electrical and
thermal conductivity. It is particularly valued in applications where precise mechanical properties,
electrical contact performance, and thermal dissipation are critical, such as in aerospace, automotive, and
electronic components.
2. Is C17500 safe to handle considering its beryllium content?
Answer: While C17500 contains beryllium, which can pose health risks if handled improperly
(such as during machining or welding), the alloy is safe to use when proper handling procedures are
followed. This includes using appropriate ventilation systems, avoiding dust inhalation, and adhering to
workplace safety regulations.
3. What surface treatments are suitable for C17500 to enhance its performance?
Answer: C17500 can benefit from various surface treatments to enhance its corrosion
resistance and wear properties. Common treatments include nickel plating, chrome plating, and anodizing,
which improve the alloy's durability and longevity in aggressive environments.
Summary Table
| Aspect |
Details |
| Chemical Composition |
Cu (97.6-99.0%), Be (0.4-0.6%), Co (0.20-0.60%), Others (Balance) |
| Mechanical Properties |
Tensile Strength: 750-1250 MPa, Yield Strength: 590-1075 MPa, Elongation: 5-15%, Hardness: 85-98
Rockwell B, Electrical Conductivity: 22-45% IACS, Thermal Conductivity: 140-200 W/m·K,
Density: 8.80 g/cm³
|
| Country Brands |
USA: Beryllium Copper Alloy 3, Germany: CuBe2NiCo, Japan: C1750, China: QBe2NiCo |
| Applications |
Aerospace components, automotive connectors, electronic and electrical components, industrial
tooling requiring high strength and conductivity
|
C17500 Beryllium Copper Alloy 3 is a versatile and high-performance alloy used across various industries for
its exceptional combination of strength, hardness, electrical conductivity, and thermal conductivity.
