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Manufacturers and Suppliers of Beryllium Copper & Copper Nickel Tin Products Consider the outstanding qualities of BERYLCO alloys. These alloys combine the very high physical characteristics of some sophisticated stainless steels with the qualities of copper alloys. Beryllium copper's main characteristics as a current carrying spring are as follows:- High strength Beryllium copper can attain a high tensile strength, to a maximum of 1480 MPa and therefore can endure very high bending stresses as a spring material. High electrical conductivity The electrical conductivity of Beryllium copper is 20% to 50% lACS, depending on chemical composition and heat treatment applied, Beryllium copper is the best material for high current density springs because of the low heat generation resulting from this high electrical conductivity. High fatigue strength Beryllium copper is known to have high fatigue strength because it shows an excellent resistance to fatigue under reverse bending and it continues to have a long life and high reliability. High elasticity Beryllium copper has an extremely high tensile strength to Young's modulus ratio. This contributes to the fabrication of a compact spring with good response to the load applied. Elevated temperature properties Beryllium copper is a precipitation hardening alloy with excellent properties at elevated temperatures and can be used in a wide range of temperatures Good formability Beryllium copper can be formed into complicated shapes in a solution annealed state. High spring properties such as the highest mechanical properties, good electrical conductivity and heat resistance will be obtained by proper heat treatment after forming. Corrosion resistance Beryllium copper has good corrosion resistance nearly equal to nickel silver and is not susceptible to hydrogen embrittlement.

NGK Berylco (UK) Ltd
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