Manganin Wire (Cu-Mn-Ni)
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Manganin wire is made from a copper-manganse-nickel resistance alloy. These wires are mainly used for the production of resistance elements for precision instruments and shunt resistors.
Manganin alloy is used for a variety of purposes because of its high resistivity, low temperature coefficient of resistance and durability over time.
Name | Type | Main 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 | - |
Name | Type | Volume resistivity,μΩ·m | |||
Manganin | 6J12 | 0.47±0.03 | |||
F1Manganin | 6J8 | 0.35±0.05 | |||
F2Manganin | 6J13 | 0.44±0.04 | |||
Constantan | 6J40 | 0.48±0.03 |
(mm) | (Lo=200mm),% Elongation rate( Lo=200mm),% |
≤ 0.05 | 6 |
>0.05~0.10 | 8 |
>0.10~0.50 | 12 |
>0.50 | 15 |
Name | Type | ℃ Temperature range | uV/C Average thermal EMF rate for copper |
Manganin | 6J12 | 0~100 | 1 |
F1 Manganin | 6J8 | 0~100 | 2 |
F2 Manganin | 6J13 | 0~100 | 2 |
Constantan | 6J40 | 0~100 | 45 |
Note: Thermal EMF rate for copper is absolute value. |
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