Alumel
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)thermocouplesand thermocouple extension wire.[1]Alumel is a registered trademark of Concept Alloys, Inc.[2]
| Electrical resistivity | 0.294 μΩ m |
| Temperature coefficient | 23.9×10−4K−1 |
| Curie point | 152 °C[3] |
| 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−1at 20 °C |
| Specific heat | 0.523 J g−1K−1[4] |
| Thermal conductivity | 29.7 W m−1K−1[5] |
References
[edit]- ^"Working with Chromel, Alumel & Constantan".Keats Manufacturing Co.2015-03-12.Retrieved2017-01-10.
- ^Concept Alloys, Inc. Intellectual Propertyretrieved 12 April 2016
- ^Horton, J. L.; Kollie, T. G.; Rubin, L. G. (1977)."Measurement of B versus H of Alumel from 25 to 180 °C".Journal of Applied Physics.48(11): 4666.Bibcode:1977JAP....48.4666H.doi:10.1063/1.323530.
- ^"Physical Properties of Thermoelement Materials"(PDF).Omega.com.Archived fromthe original(PDF)on 2017-07-24.Retrieved2018-04-24.
- ^"Super Alloy Alumel".AZoM.com.2012-11-09.Retrieved2017-01-10.
External links
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