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Beryllium Copper CB 101

Beryllium Copper CB 101

Available in any of the 'profile options'

This age hardenable copper alloy combines a range of properties suited to meet the exacting requirements of many automotive, electronic and aerospace industries.

Chemical Composition Specifications Designations Key Features Typical Applications
Element Min % Max %
Be 1.70 2.10
Fe - 0.20
Ni - 0.30
Co - 0.30
Cu bal
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
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.

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