The alloy is used for the manufacture of resistance standards, precision wire wound resistors, potentiometers, shunts and other electrical
and electronic components. This Copper-Manganese-Nickel alloy has a very low thermal electromotive force (emf) vs. Copper, which
makes it ideal for use in electrical circuits, especially DC, where a spurious thermal emf could cause malfunctioning of electronic
equipment. The components in which this alloy is used normally operate at room temperature; therefore its low temperature coefficient
of resistance is controlled over a range of 15 to 35ºC.
86% copper, 12% manganese, and 2% nickel
Name | Type | Chemical composition(%) | |||
Cu | Mn | Ni | Si | ||
Manganin | 6J12 | Rest | 11-13 | 2-3 | - |
F1 Manganin | 6J8 | Rest | 8-10 | - | 1-2 |
F2 Manganin | 6J13 | Rest | 11-13 | 2-5 | - |
Constantan | 6J40 | Rest | 1-2 | 39-41 | - |