Beryllium copper finger stock

Due to their outstanding material and electrical characteristics, beryllium copper fingers of different shapes and dimensions are used in the following industries: broadcasting, telecommunications, industrial control, measuring and instrumentation, aerospace technology, nuclear physics and data processing. Contact fingers and rings made of beryllium copper are used at all radio and microwave frequencies, for instance as contacts to valves and tuning components as well as for shielding. The beryllium copper (CuBe2) used for our products is a quality tested quench hardening spring material. It is noteworthy for its yield point, tensile strength and elasticity, good electrical conductivity, high fatigue strength as well as its resistance to abrasion and corrosion. The good thermal conductivity coupled with hardness eliminates sparking. The raw material is non-magnetic and has an excellent temperature performance. Specific weight: 8,4 g/cm3 Melting point: 900 °C Coefficient to expansion: (20-200 °C) 17x10-6/°C Thermal Conductivity: 0,27 cal/cm s °C – 1,13 W/cm °C Vickers hardness: 350-430 (HV) Bending resistance: 250-290 N/mm2(108cycles strength) Modulus of elasticity: 135.000 N/mm2 Modulus of torsion: 47.000 N/mm2 Spring bending limit: 820-950 N/mm2 Electrical conductivity: 12,5-13 m/Ω mm2 Material Options Material: hardened or unhardened Finish: bright finish, silver, gold, zinc, bright tin, tin lead, bright nickel or according to customer specifications. Material in stock: hardened and bright finish Components As a single finger, contact strip or contact ring Contact strips are carried as stock items