- BERYLLIUM COPPER
- CuBe 2 – UNS.C17200 Beryllium Copper Alloys
CuBe 2 – UNS.C17200 Beryllium Copper Alloys
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Detail CuBe 2 – UNS.C17200 Beryllium Copper Alloys
A).CuBe2 – UNS.
C17200 (Alloy 25)
Details C17200 Beryllium Copper Alloys Rods CuBe2--C17200 (CDA 172)
Beryllium Copper is the most commonly utilized Copper
Beryllium alloy and is notable for its highest strength and hardness compared to commercial copper alloys.
C17200 alloy contains appr. 2% of beryllium and achieves its ultimate tensile strength can exceed 200 ksi, while the hardness approaches Rockwell C45.
Meanwhile, the electrical conductivity is a minimum of 22% IACS in the fully aged condition.
C17200 also exhibits exceptional resistance to stress relaxation at elevated temperatures.
CuBe2 - C17200 (Alloy 25) Beryllium Copper Rod Chemical Composition:
Be:
1.85-2.10% Co+Ni: 0.20%
Min. Co+Ni+Fe: 0.60% Max.
Cu: Balance Note: Copper plus additions equal 99.5% minimum.
C). CuBe2 - C17200 (Alloy 25)
Beryllium Copper Rod 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
