Alloying beryllium with copper produces a compound that is more malleable, and much stronger than copper alone. Such alloys also resist corrosion.
Beryllium-copper alloys are also non-sparking, non-magnetic, wear well and remain stable under a wide range of temperatures. The joining qualities of these alloy welds have contributed to their use in applications like electronics.
C17200 and C17000 are high-strength beryllium-copper alloys. C17500, C17510 and C17410 are highly conductive and temperature-resistant. When these alloys are used in welding rods, surface cleanliness is essential or oxidation and weakening may occur.