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List of Alloys & profiles

List of Alloys & profiles

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 .A good conductor of electricity, Beryllium Copper CB 101 is used in the manufacture of different types of springs.

Beryllium Copper CB 101 is also known as Cupro Beryllium, Beryllium Copper Alloy 25, Berylco 25, NGK 25, and Ampcoloy 83.

Available in all profile options

Beryllium Copper CB 101 - Alloy Wire International 1

Key Features

Beryllium Copper CB 101 offers the following key features:

Good conductor of electricity.
Age hardenable.
Good mechanical properties.

Typical Applications

Beryllium Copper CB 101 is known to be suitable for the following 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

The chemical composition of Beryllium Copper CB 101 is indicated in the table below:

ElementMin %Max %
Be1.702.10
Fe0.20
Ni0.30
Co0.30
Cubal bal

Alloy Details

Beryllium Copper CB 101 density, melting point, coefficient of expansion, modulus of rigidity, and elasticity is indicated in the table below:

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.25 g/cm³980 °C17.8 μm/m °C (20 – 100 °C)47 kN/mm²123 kN/mm²
0.298 lb/in³1800 °F9.9 x 10-6 in/in °F (70 – 212 °F)6817 ksi17840 ksi

Heat treatment of finished parts

The typical heat treatment of Beryllium Copper CB 101:

Condition as supplied by AWITypeTemperatureTimeCooling
AnnealedAge Harden315 – 320 °C (600 – 610 °F)3 HrAir
Spring TemperAge Harden315 – 320 °C (600 – 610 °F)2 HrAir

Properties

The typical mechanical properties of Beryllium Copper CB 101:

Annealed
Approx. tensile strength<600 N/mm²<87 ksi
Approx. operating temperatureup to +200 °Cup to +390 °F
Annealed + Aged
Approx. tensile strength800 – 1200 N/mm²116 – 174 ksi
Approx. operating temperatureup to +200 °Cup to +390 °F
Spring Temper
Approx. tensile strength800 – 1200 N/mm²116 – 174 ksi
Approx. operating temperatureup to +200 °Cup to +390 °F
Spring Temper + Aged
Approx. tensile strength1200 – 1600 N/mm²174 – 232 ksi
Approx. operating temperatureup to +200 °Cup to +390 °F

The above tensile strength ranges are typical. If you require different please ask.