NiCr 40/20
Resistance alloys and resistance heating alloys
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NiChrome 40 is an austenitic nickel-chromium alloy has a nominal composition of 37% of nickel, 18% of chromium, balance Iron. This alloy has a high temperature coefficient, is used for domestic appliances and other heating elements operating at temperatures up to 1100°C.
| C % | Si % | Mn % | Cr % | Fe % | Ni% | |
|---|---|---|---|---|---|---|
| Min | – | 1.50 | – | 18.0 | Bal. | 34.0 |
| Max | 0.08 | 2.50 | 1.00 | 21.0 | 37.0 |
|
Density g/cm3
|
7.90 |
|
Electrical resistivity at 20°C Ω mm2/m
|
1.04 |
|
Melting point °C
|
1390 |
|
Max continuous operating temperature in air °C
|
1100 |
|
Specific heat capacity kJ kg-1 K-1
|
0.500 |
|
Thermal conductivity
|
12.2 |
|
Coefficient of thermal expansion 20-1000 °C 10-6/K |
19.0 |
|
Magnetic property
|
non-magnetic |
| °C | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 |
| Ct | 1.029 | 1.061 | 1.090 | 1.115 | 1.139 | 1.157 | 1.173 | 1.188 | 1.208 | 1.219 | 1.228 |
| Wire | Tensile strength | Elongation |
| Ø | Rm | A |
| mm | MPa | % |
| 3 | 550 | 20 |
We are able to offer insulated nickel chromium alloy wires and ribbons through following ways:
- Enamels: Polyester, polyurethane, polyester imine, etc.
- Teflon: FEP, PFA, ETFE, etc.
- Plastic: PP, PE, PVC, TPEE, TPX, etc.