[[File:Copper rich region of the termary copper nickel zinc phase diagram.jpg|right|thumb|Figure 10: Copper rich region of the ternary copper-nickel-zinc phase diagram with indication of the more commonly available german silver materials]]

Besides the low-allowed CuAg0.1, other copper materials with higher silver contents (2-6 wt%) are also used as contacts carrier materials. Some of them contain additional 1.5 wt% Cd. The phase diagram <xr id="fig:Phase diagram of copper-silver for the range of 0 – 40 wt% silver"/><!--(Fig. 5.17)--> shows, that in principle the CuAg alloys can be precipitation hardened, but the possible increase in mechanical strength is rather small.

Copper-silver alloys have good spring properties and compared to other spring materials have a high electrical conductivity (<xr id="tab:tab5.13"/> <!--(Tab. 5.13)--> and <xr id="tab:tab5.14"/><!--(Tab. 5.14)-->). The mechanical strength values in the strongly worked condition are comparable to those of the copper-tin alloys. Work hardening and softening behavior are shown for the example of CuAg2 [[#figures5|(Figs. 13 – 15)]]<!--(Figs. 5.18 – 5.20)-->. For the relaxation behavior, the silver bronzes are superior to German silver and tin bronze.