Alumel

 ( Nickel Alloys ) 

Alumel is an alloy consisting of approximately 95% nickel, 2% aluminium, 2% manganese, and 1% silicon. This magnetic alloy is used to make the negative conductors of ANSI Type K (chromel-alumel) and thermocouple extension wire. Alumel is a registered trademark of Concept Alloys, Inc. Concept Alloys, Inc. Intellectual Property retrieved 12 April 2016

+Properties of Alumel (95% Ni, 2% Al, 2% Mn, 1% Si)
Electrical resistivity	0.294 μΩ m
Temperature coefficient	23.9×10−4 K−1
Curie point	152 °C
Density	8.61 g cm−3
Melting point	1399 °C
Tensile strength (annealed)	586 MPa
Tensile strength (stress relieved)	1030 MPa
Tensile strength (hard)	1170 MPa
Coefficient of thermal expansion	12×10−6K−1 at 20 °C
Specific heat	0.523 J g−1 K−1
Thermal conductivity	29.7 W m−1 K−1

---

External links

• target="_blank" rel="nofollow"> Application guide and material properties of thermocouple wires (via Omega Engineering, Inc).

Post Comment