Resistance alloys

Those are alloys of chemical composition Ni + Cr + Fe with some additional elements so as Silicium (Si) and manganese (Mn) in order to confer them an excellent behaviour when hot and an addition of rare earth in order to increase their life time.

Those are alloys of chemical composition Fe + Cr + Fe with some additional elements and rare earth so as Yttrium, zirconium, Titan, Cerium, and Lanthanum which confer them:

For the manufacturing of low temperatures electric resistances so as heating principally destined cables, shunts, resistances for automobile, they have a maximum operating temperature of 400 °C.

Alloys in question are:

Nickel 200 – Nickel 201- Nickel 212

Those are iron and nickel based alloys which are characterised by their high temperature coefficient which confers them a very important variation of resistance.