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- Overview
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Manganese copper 6J8 6J12 6J13 has a small resistance, temperature coefficient and low electrothermal potential to copper and high resistance stability, has a high resistivity, is a relatively superior precision resistance alloy material. Mainly used in the production of standard resistors, separators, precision or ordinary resistance components.
Technical parameter table:
| Name | Alloy grade | Chemical composition | Temperature coefficient of resistance | Average resistance temperature coefficient α*10-6C-1 | Electrical resistivity （20 ℃Ω m㎡/m） | Eelongation (mm) L。=200 | P-copper thermoelectric motive force ratio | |||||
| Cu | Mn | Ni | Si | α*10-6C-1 | β*10-6C-1 | |||||||
| manganin | 1level | 6J12 | margin | 11-13 | 2-3 | - | -3～+5 | -0.7～0 | - | 0.47±0.03 | 6～15 | 1 |
| 2level | -5～+10 | |||||||||||
| 3level | -10～+20 | |||||||||||
| manganin | 6J8 | margin | 8-10 | - | 1-2 | -5～+10 | -0.25～0 | - | 0.35±0.05 | 6～15 | 2 | |
| manganin | 6J13 | margin | 11-13 | 2-5 | - | 0～+40 | -0.7～0 | 0.44±0.03 | ||||
