Alloy Wire International
Datasheet: Beryllium Copper CB 101
Beryllium Copper CB 101
This age hardenable copper alloy combines a range of properties suited to meet the exacting requirements of many automotive, electronic and aerospace industries.
Available in all profile options
Key Features
Good conductor of electricity.
Age hardenable.
Good mechanical properties.
Typical Applications
Springs
Electrical connectors & switches
Electronic components
Designations
W.Nr 2.1247
UNS C17200
AWS 140
Specifications
ASTM B196
ASTM B197
BS 2873
BS EN 12166
Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Be | 1.70 | 2.10 |
| Fe | – | 0.20 |
| Ni | – | 0.30 |
| Co | – | 0.30 |
| Cu | bal | bal |
Alloy Details
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
|---|---|---|---|---|
| 8.25 g/cm³ | 980 °C | 17.8 μm/m °C (20 – 100 °C) | 47 kN/mm² | 123 kN/mm² |
| 0.298 lb/in³ | 1800 °F | 9.9 x 10-6 in/in °F (70 – 212 °F) | 6817 ksi | 17840 ksi |
Heat treatment of finished parts
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed | Age Harden | 315 – 320 °C (600 – 610 °F) | 3 Hr | Air |
| Spring Temper | Age Harden | 315 – 320 °C (600 – 610 °F) | 2 Hr | Air |
Properties
| Annealed | ||
|---|---|---|
| Approx. tensile strength | <600 N/mm² | <87 ksi |
| Approx. operating temperature | up to +200 °C | up to +390 °F |
| Annealed + Aged | ||
|---|---|---|
| Approx. tensile strength | 800 – 1200 N/mm² | 116 – 174 ksi |
| Approx. operating temperature | up to +200 °C | up to +390 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 800 – 1200 N/mm² | 116 – 174 ksi |
| Approx. operating temperature | up to +200 °C | up to +390 °F |
| Spring Temper + Aged | ||
|---|---|---|
| Approx. tensile strength | 1200 – 1600 N/mm² | 174 – 232 ksi |
| Approx. operating temperature | up to +200 °C | up to +390 °F |
The above tensile strength ranges are typical. If you require different please ask.
