Alloy 79 – aka MuMetal/HyMu 80/Magnifer 79

Did you Know ?

Alloy 79 is a nominal 80% Nickel Balance Iron Ferromagnetic alloy with very high Permeability.  It is used for shielding sensitive electronic equipment against static and low frequency magnetic fields such as the Earths Magnetic field.  The material was first developed by British scientists Willoughby S. Smith and Henry J. Garnett and patented in 1923 for inductive loading of Submarine telegraph cables by the Telegraph Construction and Maintenance Co.

The Earths Magnetic Core is between 25-65 Microtesla.  This is enough of a field to interfere with everyday sensitive electronic equipment such as medical devices.  In every day life you will find Alloy 79 shielding such equipment as MRI scanners in your local hospital.  The rooms scanners are held in are clad with Alloy 79 on all 6 sides.  Great care needs to be taken when welding the sheets to avoid any air gaps that will allow even the tiniest amount of Magnetic Field into the room.

For more information in Alloy 79 please contact our sales team

Did you know ?

Niobium is named after Niobe, a daughter of Tantalus.  When the Ore was first discovered in 1734 it was called Columbium – the poetic name for America at the time after the ore was discovered in Massachusetts.  It was not until Heinrich Rose studied the Ore in 1844 that he found out he actually had two samples – Columbite and Tantalite, and 20 years later a Swiss Chemist isolated the metallic Niobium and developed Niobium and Tantalum.

Today it is used for its super-conductive properties ideal for very strong magnets, high temperature applications such as a sacrificial outer layer for making commercial diamonds and as a stabilising element in Stainless Steel.

For an element named after a Child who was killed by Diana and Apollo for her arrogance – it plays an increasingly important role in today’s society.


Commercial Diamonds made with sacrificial Niobium outers

Did you know ?

Tantalum has the atomic number 73, snuggling the element between hafnium, niobium, and tungsten in the transition metal section of the periodic table. Discovered in the 19th Century, tantalum is named for Tantalus, a figure from Greek Mythology, who found himself doomed to spend eternity in a Saw-like torture scheme after death. An unknown force required Tantalus to stand in knee deep water, with delicious fruit handing overhead and just out of reach. The name refers to tantalum’s own ability to be submerged in substances without being quenched.


Tantalum is also used to create surface acoustic wave filters, devices used in cell phones and televisions to improve audio quality. The average cell phone has about 40 milligrams of tantalum inside — not a considerable amount, but one that adds up quickly thanks to the millions and millions of cell phones in use.



Did you know ?

Molybdenum TZM has twice the strength of Molybdenum at over 1000°C

It is commonly used for Hot Runner Dies inserts that control the flow of liquid plastics into die cavities.

Image result for molybdenum tzm images hot runner

TZM provides the thermal shock and abrasion resistance required for this application

TZM (Mo (~99%), Ti (~0.5%), Zr (~0.08%) and some C) is a corrosion-resisting molybdenum superalloy that resists molten fluoride salts at temperatures above 1,300 °C (2,370 °F). It has about twice the strength of pure Mo, and is more ductile and more weldable, yet in tests it resisted corrosion of a standard eutectic salt (FLiBe) and salt vapors used in molten salt reactors for 1100 hours with little corrosion.



Did you know ?

Incandescent lighting was the first molybdenum application.  Its use , dating back to around 1910 was in the form of filament supports for incandescent lamps.

large quantities of molybdenum metal are still used for lighting applications today.

Image result for molybdenum filament bulbs


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