Alumel is an alloy of five non-ferrous metals: nickel, aluminum, magnesium, silicon and cobalt. The name of the alloy comes, as you might guess, from the first two components: "ALUMINUM" and "NICKEL". The predominant element in the alloy is nickel, with a mass fraction of 93 - 96%, the proportion of other metals in the composition of the Alumel alloy does not exceed 2% for each.
If you want to buy alumel, you first need to familiarize yourself with its main features.
Aluminum wire has become an indispensable component in the manufacture of so-called compensation wires for pyrometry, acting as a negative electrode paired with chromel wire. Alumel is also widely used in the production of specialized thermocouples for measuring temperatures in the range from 0 to 1000 degrees Celsius.
The advantages of Alumel over other conductors are heat resistance and unsurpassed resistance to corrosion in an aggressive environment.