China Supplier Nickel Chrome Nicr80 20 Resistance Heat Conducting Alloy Wire, Find details about China Resistance Wire, Heating Wire from China Supplier Nickel Chrome Nicr80 20 Resistance Heat Conducting Alloy Wire
Alloy Nomenclature Performance | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
main chemical composition | Ni | Rest | Rest | 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 | Rest | Rest | Rest | |
Max. continuous service temp. of element(ºC) | 1200 | 1250 | 1150 | 1150 | 1150 | |
Meltiing point ºC | 1400 | 1380 | 1390 | 1390 | 1390 | |
Resistivity at 20ºC (μΩ·m) | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 | |
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 lines expansion(α×10-6/ºC) | 18 | 17 | 17 | 19 | 19 | |
Melting point approx.( ºC) | 1400 | 1380 | 1390 | 1390 | 1390 | |
Elongation at rupture(%) | >20 | >20 | >20 | >20 | >20 | |
Micrographic structure | Austenite | Austenite | Austenite | Austenite | Austenite | |
Magnetic properties | Nonmagnetic | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic |