It is an age-hardening alloy, higher alloyed in comparison with CuNi1.5Si, for current-carrying formed parts. CuNi2Si---UNS.C64700/ ... , which is an age-hardening alloy, higher alloyed in comparison with CuNi1.5Si, for current-carrying formed parts. It has an ... which require a high rigidity of the pins and for connector with high demands on the electrical conductivity, strength and relaxation behavior ...