Nickel-chromium-based resistance heating alloys suitable for element temperatures up to 1250C (2282F).
Type | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
property | |||||
℃(Max.continuous service temp.of element) | 1200 | 1250 | 1150 | 1100 | 1100 |
℃(melting point) | 1400 | 1380 | 1390 | 1390 | 1390 |
g/cm3(density) | 8.40 | 8.10 | 8.20 | 7.90 | 7.90 |
μΩ·m (resistivity) | 1.09±0.05 | 1.18±0.05 | 1.11±0.05 | 1.04±0.05 | 1.04±0.05 |
20℃ J/g.℃ | 0.440 | 0.461 | 0.494 | 0.500 | 0.500 |
KJ/m·h·℃ | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
a×10-6/℃ | 18.0 | 17.0 | 17.0 | 19.0 | 19.0 |
microscopic structure | Austenite | Austenite | Austenite | Austenite | Austenite |
magnetic property | non magnetic | non magnetic | non magnetic | non magnetic | non magnetic |
1. FeCrAl heating wire: OCr27AL7Mo2, OCr21AL6Nb, OCr21AL6, OCr25AL5, OCr23AL5, OCr21AL4, 1Cr13AL4
2. Nichrome heating wire: Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30.
3. Product forms and size range
Round wire
0.010-12 mm (0.00039-0.472 inch) Other sizes are available on request.
Ribbon (flat wire)
Thickness: 0.023-0.8 mm (0.0009-0.031 inch)
Width: 0.038-4 mm (0.0015-0.157 inch)
Width/thickess ratio max 60, depending on alloy and tolerance
Other sizes are available on request.
Plz feel free to contact me if any question.
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Thanks a lot for your understanding in advance!
