NicraTHERM alloys are generally easy to weld and form. However, formability may be limited in the temperature range between 500 and 900 °C (260 and 482 °F).
Due to the higher emission coefficient exhibited by NicraTHERM alloys compared to FecroTHERM alloys when the surface is fully oxidised, the element temperature is lower for the same surface load.
The electrical resistivity of NicraTHERM alloys can vary depending on the diameter and degree of pre-stressing, and does not increase continuously with rising temperature in all alloys; this must be taken into account during design when compared to FecroTHERM alloys.
NicraTHERM alloys are non-magnetic. However, NicraTHERM 60-15 is an exception, as it may exhibit a low degree of ferromagnetism.
NicraTHERM alloys are generally unsuitable for use in sulphurous atmospheres; direct contact with substances containing sulphur or chloride, as well as with liquid metal, should also be avoided.
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Heat treatment | annealed (+A) |
Properties
BGH NicraTHERM 80‑20 is an austenitic, high‑temperature resistant Ni‑Cr alloy. It is resistant to oxidation and shows almost constant electrical properties within the entire application temperature range.
Delivery Condition
- annealed (+A)
- bright drawn
Supply Form
- Wire (on spool up to 3 mm, coils, casks)
- Bright bars
Application Area
Heating elements for industrial and domestic applications and furnace components with service temperature up to 2192 °F.
Typical Applications
- High‑power cartridge‑type heaters
- Heating for plastic mould dies
- Soldering irons
- Wire mesh conveyor belts
- Control resistors
- Wire‑wound resistors
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Heat treatment | annealed (+A) |
Material designation
- DIN EN 2.4658
- UNS N06008
Properties
BGH NicraTHERM 70-30 is an austenitic, high-temperature-resistant Ni-Cr alloy.
It exhibits high resistance to oxidising and reducing atmospheres, although this is limited in the presence of sulphurous gases. The material is highly resistant to atmospheric corrosion.
Delivery condition
- anneled (+A)
- final annealed
- bright drawn
Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars
Application area
BGH NicraTHERM 70-30 is used in heating elements for domestic applications and industrial furnaces, as well as for furnace components operating at temperatures of up to 1250 °C.
Typical applications
- Kitchen appliances (grills, toasters, hotplates)
- Industrial furnaces
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Heat treatment | annealed (+A) |
Properties
BGH NicraTHERM 60-15 is an austenitic, high-temperature resistant Ni-Fe-Cr-alloy. The material is characterized by high electrical resistivity in combination with good scaling resistance and dimensional stability. It retains its good ductility even after use. The grade offers excellent weldability.
Delivery Condition
- annealed (+A)
- bright drawn
Supply Form
- Wire (on spool up to 3mm, coils, casks)
- Bright bars
Application Area
Heating elements for household appliances and industrial furnaces as well as furnace parts with application temperatures up to 2012 °F.
Typical Applications
- Kitchen appliances (grills, toasters, hot plates)
- White goods (tumble-dryers)
- Electric tubular-flow heaters
- Heavy-duty resistors
- Industrial furnaces
| Eigenschaft | Wert |
|---|---|
| Grade name | |
| Heat treatment | annealed (+A) |
Properties
BGH NicraTHERM 30-20 is a stainless austenitic iron-chromium-aluminium alloy with high resistivity, good high-temperature strength and oxidation resistance. BGH NicraTHERM 30-20 is non-magnetic.
Delivery condition
- annealed (+A)
Supply Form
- Wire (on spool up to 3mm, coils, casks)
- Bright bars, continuous cast billets
Application Area
Heating elements with service temperatures up to 1000 °C.
Typical Applications
- Heating elements for electric furnaces
- Convection and fan heaters
- Heating cables
- Seat heating
- De-icing elements
- Resistors