Brand:Xinhua Alloy
MOQ:50
Quantity:50
Nickel Chrome Wire
Nichrome, a non-magnetic alloy of nickel and chromium, iscommonly used to make resistance wire because it has a highresistivity and resistance to oxidation at high temperatures. Whenused as a heating element, resistance wire is usually wound intocoils.
Grade | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
Major chemical components% | 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 | |
Maximum operation (service) temperature | 1200 | 1100 | 1000 | 1000 | 1000 | |
Melting point C | 1400 | 1380 | 1390 | 1390 | 1390 | |
Density g/cm3 | 8.40 | 8.10 | 8.20 | 7.90 | 7.90 | |
Resistivity μΩ·m,20 C | 1.09±0.05 | 1.18±0.05 | 1.11±0.05 | 1.04±0.05 | 1.04±0.05 | |
Extension rate% | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
Specific heat J/g. C | 0.440 | 0.461 | 0.494 | 0.500 | 0.500 | |
Coefficient of heat conductivity KJ/m.h C | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Coefficient of linear expansiona×10-6/C(20~1000C) | 18.0 | 17.0 | 17.0 | 19.0 | 19.0 | |
Microscopic constitution | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | |
Magnetic | Non-magnetic | Non-magnetic | Non-magnetic | Non-magnetic | Non-magnetic | |
