BGH CuniTHERM 44 is a copper-nickel alloy suitable for operating temperatures up to 600 °C. It exhibits electrical resistance that is virtually independent of temperature over a wide temperature range, as well as good resistance to scaling in oxidising, sulphurous and carburising atmospheres.
The high thermoelectric voltage relative to copper (40–50 µV/K) may limit its use in high-precision instruments and stable resistors due to the occurrence of currents in the heating contact terminals.
The high thermoelectric voltage relative to copper (40–50 µV/K) may limit its use in high-precision instruments and stable resistors due to the occurrence of currents in the heating contact terminals.
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| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Heat treatment | annealed (+A) |
Material designation
- DIN EN 2.0842
- UNS N04401 / C72150
Properties
BGH CuniTHERM 44 has a particularly small temperature coefficient of electrical resistance and is also known under the brand name constantan. The thermoelectric emf is high compared to Cu.
The material is scale-resistant and resistant up to 600 °C to oxygen-containing and oxidising sulphurous gases and carburisation, among others.
Delivery dondition
- annealed (+A)
- final annealed
- bright drawn
Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars
Application Areat
BGH CuniTHERM 44 It is used in particular in electrical measuring instruments and low-temperature heating elements with operating temperatures of up to 600 °C.
Typical applications
- Precision and measuring resistors
- Thermocouples
- Heating wires and cables
- Heating mats