How to distinguish chromel from alumel by color

Percentage composition of alumelite

Ni Fe Co Mn C Mn Al Si
Impurities
93 - 95 ≤0.3 0.6 - 1.2 1.8 - 2.7 ≤0.1 1.8 - 2.7 1.6 - 2.4 0.85 - 1.5
≤ 0.7

Physical Properties

It is a lighter alloy and slightly lighter because of impurities.

Property Values
Alloy density 8.67 g/cm-3
melting point: approximately 1440°C
Modulus of elasticity 130 GPa
Impact strength 110-150 J-m-1
Annealing t°: 950°C
T° of hot work: 1050 - 1280°C

Percentage chromel composition

Ni+Co Al Fe C Co Si Mn Si Impurities
87.4 - 90.4 0.6 - 1.2 ≤ 0.3 ≤ 0.2 9 - 10 ≤ 0.4 ≤ 0.3 ≤ 0.4 ≤ 1.4

Physical properties

Property Value
Alloy density 8.7 g/cm-3
Modulus of elasticity 186 GPa
Melting point: 1420°C
Hot work temperature: 1200 - 1000°C
t° annealing temperature: 800 - 900°C

The supplier

The supplier Evek GmbH offers to buy thermocouple (alumel-chromel) wire, the price is the most optimal in this segment of rolled products. We offer thermocouple wire (alumel-chromel) from specialized stocks of Evek GmbH with delivery in any city.

Buy, bargain price

On our web-site you can find information about the latest arrivals. We offer the best price-quality ratio. Timely delivery is ensured by our representative offices in Eastern European cities.