Factory Direct Supply High Resistance Alloy Cr20Ni80 Wire for Electrical Heating
Size dimension range:
Wire: 0.01-10mm
Ribbon: 0.05*0.2-2.0*6.0mm
Strip: 0.05*5.0-5.0*250mm
Ni-Cr series: Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30
Standard: GB/T1234-2012
Chemical Composition (%):
C≤0.08%, Mn≤0.6%, P≤0.02%, S≤0.015%, Si: 0.75-1.60%, Cr: 20.0-23.0%, Ni: Bal., Fe≤1.0%, Al≤0.5%
Max. continuous service temp. of element (ºC): 1200
Meltiing point (ºC): 1400
Resistivity at 20ºC (μΩ·m): 1.09±0.05
Density(g/cm3): 8.4
Thermal conductivity (KJ/m·h·ºC): 60.3
Coefficient of lines expansion(α×10-6/ºC): 18
Elongation at rupture (%) >20
Micrographic structure: Austenite
Magnetic properties: Non-magnetic
Electrical Resistance Wire / Nichrome Wire
Grade No. | Chemical composition % | |||||||||
C | P | S | Mn | Si | Cr | Ni | Al | Fe | others | |
Max. (≤) | ||||||||||
Cr20Ni80 | 0.08 | 0.02 | 0.015 | 0.6 | 0.75-1.60 | 20.0-23.0 | Rest | ≤0.50 | ≤1.0 | — |
Cr30Ni70 | 0.08 | 0.02 | 0.015 | 0.6 | 0.75-1.60 | 28.0-31.0 | Rest | ≤0.50 | ≤1.0 | — |
Cr15Ni60 | 0.08 | 0.02 | 0.015 | 0.6 | 0.75-1.60 | 15.0-17.0 | 55.0-61.0 | ≤0.50 | Rest | — |
Cr20Ni35 | 0.08 | 0.02 | 0.015 | 1 | 1.00-3.00 | 18.0-21.0 | 34.5-36.0 | — | Rest | — |
Cr20Ni30 | 0.08 | 0.02 | 0.015 | 1 | 1.00-2.00 | 18.0-21.0 | 30.0-31.5 | — | Rest | — |
Packing and Shipping