C17500 Alloy 3 Beryllium Copper
C17500 (Alloy 3) : Containing approximately 0.5% beryllium and 2.0% cobalt, with high conductivity and moderate strength, commonly used in electrical contacts, relays, and switch parts.
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 |
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.
