Silicon, similarly to phosphorus, acts as a deoxidizing agent, and the bronzes produced under its influence are very ductile and elastic, do not rust, and are very strong. On account of these qualities silicon bronze is much used for telegraph and telephone wires. The process of manufacture is similar to that of phosphor bronze; the silicon is used in the form of copper silicide. Some good silicon bronzes are as follows:

I           II

Copper........ . 97.12 97.37

Tin............ 1.14 l.32

Zinc............ 1.10 1.27

Silicon.......... 0.05 0.07