Supermalloy is an alloy composed of nickel (79%), molybdenum (5%), and iron.
It is a magnetically soft material. The resistivity of the alloy is 0.6 Ω·mm2/m.[1] It has an extremely high magnetic permeability ( approximately 800000 N/A2) and a low coercivity. Supermalloy is used in manufacturing of components of radio engineering, telephony, and telemechanics instruments.