Precipitation hardened high copper alloy Precipitation alloys for connector pins made of wire

摘要

A new generation of high performance copper alloy wire is attracting the attention of the electronic industry. The excellent material properties are due to the effect of precipitation hardening. The alloys are known in the electronic industry as precipitation hardened copper alloy strip for connectors and electrical contacts. Now these alloys are available as wire which is often further processed to square shaped connector pins. The properties of wire for connector pins made of the precipitation hardened alloy Wieland-K55 (UNS C 70250) are presented in comparison to other common connector pin materials. The combination of electric conductivity and mechanical strength as well as stress relaxation resistance data and further processing properties are discussed.