Product Description
Specification
UNS/CDA: UNS. C17500, CDA 175, CuCo2Be
ASTM: B441
RWMA: Class 3
DIN: 2.1285, CW104C
Temper: A(TB00), H(TD04), AT(TF00), HT(TH04)
Be: 0.40-0.70%
Co: 2.40-2.70%
Cu: Balance
Co+Be+Cu: 99.5% Min.
Physical Properties
Density (g/cm3): 8.83
Density before age hardening (g/cm3): 8.75
Elastic Modulus (kg/mm2 (103)): 14.10
Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C): 18 x 10-6
Thermal Conductivity (cal/(cm-s-°C)): 0.48
Melting Range (°C): 1000-1070
Note:
1). the units are based upon Metric.
2). the typical physical properties apply to age hardened products.
Application
UNS.C17500 Beryllium Copper Alloy 3
Beryllium copper alloy C17500 is heat-treatable with moderate electrical and thermal conductivity and high tensile strength.
It is recommended for projection welding dies, flash and butt welding dies, current-carrying members, and heavy-duty offset electrode holders. It is also generally recommended for spot and steam welding steels with high electrical resistance, such as stainless steel.
It provide a good strength with even better thermal conductivity than C17200.This alloy offers conductivity of 45 to 60 percent of pure copper while providing significant strength and hardness properties.
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