This age hardenable copper alloy combines a range of properties suited to meet the exacting requirements of many automotive, electronic and aerospace industries.
Beryllium Copper CB 101 is also known as Cupro Beryllium, Beryllium Copper Alloy 25, Berylco 25, NGK 25, and Ampcoloy 83.
| Chemical Composition | Specifications | Designations | Key Features | Typical Applications | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
ASTM B196 ASTM B197 BS 2873 BS EN 12166 |
W.Nr 2.1247 UNS C17200 AWS 140 |
Good conductor of electricity Age hardenable Good mechanical properties |
Springs Electrical connectors & switches Electronic components |
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| Density | 8.25 g/cm³ | 0.298 lb/in³ |
| Melting Point | 980°C | 1800°F |
| Coefficient of Expansion | 17.8 μm/m °C (20 – 100°C) | 9.9 x 10-6 in/in °F (70 – 212°F) |
| Modulus of Rigidity | 47 kN/mm² | 6817 ksi |
| Modulus of Elasticity | 123 kN/mm² | 17840 ksi |
| Heat Treatment of Finished Parts | |||||
|---|---|---|---|---|---|
| Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | |
| °C | °F | ||||
| Annealed | Age Harden | 315 – 320 | 600 – 610 | 3 | Air |
| Spring Temper | Age Harden | 315 – 320 | 600 – 610 | 2 | Air |
| Properties | ||||
|---|---|---|---|---|
| Condition | Approx. tensile strength | Approx. operating temperature | ||
| N/mm² | ksi | °C | °F | |
| Annealed | 400 – 600 | 58 – 87 | up to +200 | up to +390 |
| Annealed + Aged | 800 – 1200 | 116 – 174 | up to +200 | up to +390 |
| Spring Temper | 800 – 1200 | 116 – 174 | up to +200 | up to +390 |
| Spring Temper + Aged | 1200 – 1600 | 174 – 232 | up to +200 | up to +390 |
The above tensile strength ranges are typical. If you require different please ask.
