Manganin 47
Chemical Content, %
| Ni | Mn | Fe | Si | Cu | Other | ROHS Directive Cd | ROHS Directive Pb | ROHS Directive Hg | ROHS Directive Cr |
|---|---|---|---|---|---|---|---|---|---|
| 2~3 | 11~13 | <0.5 | micro | Bal | - | ND | ND | ND | ND |
Mechanical Properties
| Property Name | Value |
|---|---|
| Max Continuous Service Temp | 5-45℃ |
| Resisivity at 20℃ | 0.47ohm mm2/m |
| Density | 8.4 g/cm3 |
| Thermal Conductivity | 40 KJ/m·h·℃ |
| TCR at 20 ºC | -3~+20×10-6/ºC |
| Melting Point | 1450℃ |
| Elongation | 6~15% |
| EMF vs Cu, μV/ºC (0~100ºC) | 1(max) |
| Tensile Strength of soft condition | 343-539 N/mm2 |
| Tensile Strength of hard condition | >637 N/mm2 |
| Hardness of soft condition | 100-172 Hv |
| Hardness of hard condition | 140-300 Hv |
Application of Manganin
Manganin foil and wire is used in the manufacture of resistor, Particularly ammeter shunt, because of its virtually zero temperature coefficient of resistance value and long term stability.
