Chemical Composition:
Be: 1.8-2.0%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.
CuBe2 - C17200 (Alloy 25) Beryllium Copper Wire
Typical Physical Properties:
Density (g/cm3): 8.36
Density before age hardening (g/cm3): 8.25
Elastic Modulus (kg/mm2 (103)): 13.40
Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C): 17 x 10-6
Thermal Conductivity (cal/(cm-s-°C)): 0.25
Melting Range (°C): 870-980
Note:
1). the units are based upon Metric.
2). the typical physical properties apply to age hardened products.
CuBe2 - C17200 (Alloy 25) Beryllium Copper Alloys
International Specification
Wires: ASTM B197, AMS4725, SAE J461,463, RWMA Class 4
European Standards: CuBe2, Alloy 25, QBe2, BrB2, DIN 2.1247, CW101C to EN
CuBe2 - C17200 (Alloy 25) Beryllium Copper Alloys Wires
Mechanical Properties:
The Mechanical Properties will be available on request from customers.
Most Commonly Temper Used:
Wires: A(TB00),1/4 H(TD01),1/2 H(TD02),3/4H(TD03),H(TD04)