Product Overview
50/50 Tellurium Copper is a copper-tellurium master alloy with a nominal composition of 50% Cu and 50% Te, used to add tellurium to copper melts. Its main use is producing free-machining tellurium copper such as C14500, where a small tellurium addition forms fine copper telluride particles that break up chips during machining while keeping electrical conductivity close to that of pure copper. Adding tellurium as a master alloy rather than as pure metal gives better recovery, because pure tellurium is volatile at copper melting temperatures and is easily lost to fume. At this composition the alloy is close to the compound copper telluride (Cu2Te); it melts over a range of roughly 1,950–2,060°F (1,066–1,127°C) and has a density of about 0.263 lbs/in³ (7.27 g/cm³). Forms: 1″ x 6″ x 12″ slabs.
