Cr20Ni35 cr20ni80 nichrome 80/20 wire electric heat resistant wire resistance heating wire
Nichrome Alloy Grade | Nichrome wire |
Form | Round wire,Flat wire,Strip,Bar,Spring shaped wire, Wave shaped strip,Radiant tube heater |
Delivery condition | Bright annealed,Oxidized,Pickled,Enameled |
Size | Wire: 0.030mm-10mm |
Ribbon: 0.05*0.2mm-2.0*6.0mm |
Strip: 0.5*5.0mm-5.0*250mm |
furnance spring wire according to customers requirement |




NiCr Series
- Nickel-chromium, nickel, ferrochrome alloy wire with electric high temperature oxidation resistance, high strength,
- not soften and a series of advantages. When used in a long time, the same type and the permanent elongation is
- very small, which is more Cr20Ni80 alloy with excellent comprehensive properties, is to produce high-quality
- varieties of choice for electric components.
Features of NiCr :
(1) High resistance
(2) Low temperature coefficient of resistance
(3) High working temperature
(4) Good corrosion resistance especailly under high temperature
(5) Good performance of anti-carburizing, the atmosphere and surface of sulfur pollution
(6) Long lifespan
Specifications | STANDARD: GB1234-2012 |
Main chemical composition | Cr:20.0-23.0% ,Ni: Rest |
Max. continues service temp. | 1200°C |
Resistivity at 20 °C | 1.09±0.05 |
Density (g/cm3) | 8.4 |
Thermal conductivity(KJ/m.h.°C) | 60.3 |
Coefficient of lines expansion (aX10-6/°C) | 18 |
Melting point appox °C | 1400 |
Elongation at rupture % | >20 |
Micrographic structure | austenite |
Magnetic properties | non magnetic |
Performance material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
Composition | Ni | 90 | Rest | Rest | 55.0~61.0 | 34.0~37.0 | 30.0~34.0 |
Cr | 10 | 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 |
Maximum temperature℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
Meltiing point ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
Density g/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
Resistivity at 20℃((μΩ·m) |
| 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
Elongation at rupture | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
Specific heatJ/g.℃ |
| 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
Thermal conductivityKJ/m.h℃ |
| 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
Coefficient of lines expansiona×10-6/(20~1000℃) |
| 18 | 17 | 17 | 19 | 19 |
Micrographic structure |
| Austenite | Austenite | Austenite | Austenite | Austenite |
Magnetic properties |
| Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic |

Company Inform:
Shanghai Yila Stainless steel Co., Ltd specialized in produce of high resistance wire,nickel chromium heating wire,iron chromium aluminum heating wire,flat wire,stainless steel wire and so on.The products are widely used in industrial electric furnace heating equipment and civil heating appliance,automobile exhaust purification metal honeycomb carrier,high-speed locomotive brake, lifting motor brake electric voltage regulator,diamond heating element and so on.
If your company uses the above products, please give us the opportunity to quote. We can be very competitive.Smaller quantities are welcome. Please give us a call and see if we can become one of your valued suppliers.


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