Heating Element Wire (N40) for Resistor
Product: Heating Element Wire/Nichrome Wire/NiCrFe Alloy Wire
Grade: N40(35-20 Ni-Cr), Ni35Cr20Fe
Chemical Composition: Nickel 35%, Chrome 20%, Fe Bal.
Resistivity: 1.04 ohm mm2/m
Condition: Bright, Annealed, Soft
Diameter: 0.018~30mm
Producer: Shanghai Tankii Alloy Material Co., Ltd.
The nichrome wire is usually used in tube heater, hair dryer, electric iron, soldering iron, rice cooker, oven, furnace, heating element, resistance element, etc.
If you have any requirement, pls be free to tell us.
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| Chemical Composition and Main Properties of Nichrome |
| Properties \ Grade |
NiCr 80/20 |
NiCr 70/30 |
NiCr 60/15 |
NiCr 35/20 |
NiCr 30/20 |
| Main Chemical Composition |
Ni |
Balance |
Balance |
55.0-61.0 |
34.0-37.0 |
30.0-34.0 |
| Cr |
20.0-23.0 |
28.0-31.0 |
15.0-18.0 |
18.0-21.0 |
18.0-21.0 |
| Fe |
≤1.0 |
≤1.0 |
Balance |
Balance |
Balance |
| Max Continuous Service Temperature(oC) |
1200 |
1250 |
1150 |
1100 |
1100 |
| Resisivity 20oC (Ωmm2/m) |
1.09 |
1.18 |
1.12 |
1.04 |
1.04 |
| Density (g/cm3) |
8.4 |
8.1 |
8.2 |
7.9 |
7.9 |
| Thermal Conductivity(KJ/m@h@oC) |
60.3 |
45.2 |
45.2 |
43.8 |
43.8 |
| Coefficient of Thermal Expansion(α×10-6/oC) |
18 |
17 |
17 |
19 |
19 |
| Melting Point( oC) |
1400 |
1380 |
1390 |
1390 |
1390 |
| Elongation(%) |
>20 |
>20 |
>20 |
>20 |
>20 |
| Micrographic Structure |
austenite |
austenite |
austenite |
austenite |
austenite |
| Magnetic Property |
nonmagnetic |
nonmagnetic |
nonmagnetic |
Weak magnetic |
Weak magnetic |
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