Supermalloy

Supermalloy is an alloy composed of nickel (75%), iron (20%), and molybdenum (5%). It is a high permeability ferromagnetic alloy used in magnetic cores and magnetic shielding in electrical components, such as pulse transformers and ultra-sensitive magnetic amplifiers. It has a resistivity of 0.6 Ω·mm²/m (or 6.0 x 10⁻⁷Ω·m)[1], an extremely high magnetic permeability (approximately 800000 N/A²), and a low coercivity. Supermalloy is used in manufacturing components for radio engineering, telephony, and telemechanics instruments.

References

"Supermalloy | Nickel & Nickel Alloys | Non-ferrous Metals | Metals | Material Categories | Chemical, mechanical, physical and environmental properties of materials | Matbase: the independent online material selection resource". www.matbase.com. Archived from the original on 2012-10-16. Retrieved 2017-12-09.

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[1] "Supermalloy | Nickel & Nickel Alloys | Non-ferrous Metals | Metals | Material Categories | Chemical, mechanical, physical and environmental properties of materials | Matbase: the independent online material selection resource". www.matbase.com. Archived from the original on 2012-10-16. Retrieved 2017-12-09.