Chromel
Trademark for a family of chromium-nickel alloys / From Wikipedia, the free encyclopedia
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Chromel is an alloy made of approximately 90% nickel and 10% chromium by weight that is used to make the positive conductors of ANSI Type E (chromel-constantan) and K (chromel-alumel) thermocouples. It can be used at temperatures up to 1,100 °C (2,010 °F) in oxidizing atmospheres. Chromel is a registered trademark of Concept Alloys, Inc.[1]
More information Characteristic, Value ...
Characteristic | Value |
---|---|
Temperature coefficient | 0.00032 K−1 |
Electrical resistivity | 0.706 µΩ m |
Mechanical | |
Elongation at break | <44% |
Izod impact strength | 108 J m−1 |
Modulus of elasticity | 186 GPa |
Tensile strength | 620–780 MPa |
Physical | |
Density | 8.5 g cm−3 |
Melting point | 1420 °C |
Thermal | |
Coefficient of thermal expansion | 12.8×10−6 K−1 at 20–1000 °C |
Maximum use temperature in air | 1100 °C |
Thermal conductivity | 19 W m−1 K−1 at 23 °C |
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