Beryllium copper alloy C17510 is heat-treatable with moderate electrical and thermal conductivity and high tensile strength.
It is recommended for projection welding dies, flash and butt welding dies, current-carrying members, and heavy-duty offset electrode holders. It is also generally recommended for spot and steam welding steels with high electrical resistance, such as stainless steel.
It provide a good strength with even better thermal conductivity than C17200.This alloy offers conductivity of 45 to 60 percent of pure copper while providing significant strength and hardness properties. So C17510 is often used in the resistance welding industry