Precision alloy refers to alloys with special physical properties. It is an indispensable material in the electrical industry, electronic industry, precision instrument industry and automatic control system.
Precision alloys are divided into 7 categories according to their different physical properties, namely: soft magnetic alloys, deformable permanent magnetic alloys, elastic alloys, expansion alloys, thermal bimetals, resistance alloys, and thermoelectric alloys.
The vast majority of precision alloys are based on ferrous metals, and only a few are based on non-ferrous metals.