Heating Elements
Includes high power electric heating tube, air heating tube, hydronic heating pipe, titanium metal tube, heater band etc...
Cr20Ni80 bright soft resistance wires
- Features:
- Cr20Ni80 Resistance Wire is an alloy used at operating temperatures up to 1200°C (2200°F). Its chemical composition gives good oxidation resistance, especially under conditions of frequent switching or wide temperature fluctuations. This makes it ideal for a wide variety of applications including heating elements in domestic and industrial appliances, wire-wound resistors, through to the aerospace industry.
- Cr20Ni80 Resistance Wire is also known as Nichrome V, Tophet A, Alloy A, Brightray C, Cronix 80, Nikrothal 8, Chromalloy, Chromel A, and Gilphy 80, N8, HAI-NiCr 80, Resistohm 80, Protoloy, MWS-650, Stablohm 650
- Advantages:
- It has stable structure, stable electrical and physical properties, good mechanical properties at high temperature, good cold deformation plasticity, good weldability, long-term use without brittle fracture and strong oxidation resistance.
- Specifications:
- Bright and soft annealed finish: 0.025 - 1.6mm; Acid-pickled finish or primary color (dark green): 1.0 -12.0mm; Rods: 6.0-150.0mm
Flat wire: width from 0.2 - 6.0mm and thickness from 0.08 - 1.0mm; Wide strip: width from 5.0 - 300mm and thickness from 0.05 - 4.0mm
Product Description
Chemical Composition:
| C | P | S | Mn | Si | Cr | Ni | Al | Fe |
|---|---|---|---|---|---|---|---|---|
| ≤ | ||||||||
| 0.08 | 0.02 | 0.015 | 0.6 | 0.75~1.6 | 20.0~23.0 | Remainder | ≤0.5 | ≤1.0 |
| Max. continuous service Temp. | 1200ºC | Resistivity at 20ºC (μΩ·m) | <0.50mm 1.09±0.05 0.5-3.0mm 1.13±0.05 >3.0mm 1.14±0.05 |
| Density | 8.40 g/cm3 | Thermal conductivity(20ºC) | 15 W/(m·K) |
| Average linear expansion coefficient(20-1000ºC) | 18.0 α×10-6/K | Specific heat capacity | 0.46 J/(g·K) |
| Approx. melting point | 1400ºC | Elongation | Diameter≤3.0mm: ≥20% Diameter>3.0mm: ≥25% |
| Tensile strength(Rm/MPa) | ≥650 | Accelerated life test | ≥80h/1200ºC |
| Micrographic structure | Austenite | Magnetic properties | Nonmagnetic |
|
Diameter
(mm) |
Ohm per meter (20ºC Ω/m) |
Length per kg
(m/kg) |
Weight per meter
(g/m) |
Diameter
(mm) |
Ohm per meter (20ºC Ω/m) |
Length per kg
(m/kg) |
Weight per meter
(g/m) |
|---|---|---|---|---|---|---|---|
| 0.05 | 555.133 | 60630.51 | 0.01649 | 1.1 | 1.1891 | 125.27 | 7.98278 |
| 0.06 | 385.509 | 42104.52 | 0.02375 | 1.2 | 0.9991 | 105.26 | 9.50017 |
| 0.07 | 283.231 | 30933.93 | 0.03233 | 1.3 | 0.8513 | 89.69 | 11.14950 |
| 0.08 | 216.849 | 23683.79 | 0.04222 | 1.4 | 0.7341 | 77.33 | 12.93078 |
| 0.09 | 171.337 | 18713.12 | 0.05344 | 1.5 | 0.6394 | 67.37 | 14.84401 |
| 0.1 | 138.783 | 15157.63 | 0.06597 | 1.6 | 0.5620 | 59.21 | 16.88919 |
| 0.11 | 114.697 | 12526.96 | 0.07983 | 1.7 | 0.4978 | 52.45 | 19.06631 |
| 0.12 | 96.377 | 10526.13 | 0.09500 | 1.8 | 0.4441 | 46.78 | 21.37538 |
| 0.13 | 82.120 | 8969.01 | 0.11150 | 1.9 | 0.3985 | 41.99 | 23.81639 |
| 0.15 | 61.681 | 6736.72 | 0.14844 | 2.0 | 0.3597 | 37.89 | 26.38936 |
| 0.17 | 48.022 | 5244.85 | 0.19066 | 2.2 | 0.2973 | 31.32 | 31.93112 |
| 0.19 | 38.444 | 4198.79 | 0.23816 | 2.4 | 0.2498 | 26.32 | 38.00067 |
| 0.21 | 31.470 | 3437.10 | 0.29094 | 2.6 | 0.2128 | 22.42 | 44.59801 |
| 0.25 | 22.205 | 2425.22 | 0.41233 | 2.8 | 0.1835 | 19.33 | 51.72314 |
| 0.27 | 19.037 | 2079.24 | 0.48095 | 3.0 | 0.1599 | 16.84 | 59.37605 |
| 0.29 | 16.502 | 1802.33 | 0.55484 | 3.2 | 0.1417 | 14.80 | 67.55675 |
| 0.31 | 14.442 | 1577.28 | 0.63400 | 3.4 | 0.1256 | 13.11 | 76.26524 |
| 0.35 | 11.329 | 1237.36 | 0.80817 | 3.6 | 0.1120 | 11.70 | 85.50151 |
| 0.40 | 8.674 | 947.35 | 1.05557 | 3.8 | 0.1005 | 10.50 | 95.26558 |
| 0.45 | 6.853 | 748.52 | 1.33596 | 4.0 | 0.0907 | 9.47 | 105.55742 |
| 0.50 | 5.551 | 606.31 | 1.64933 | 4.5 | 0.0717 | 7.49 | 133.59611 |
| 0.55 | 4.756 | 501.08 | 1.99570 | 5.0 | 0.0581 | 6.06 | 164.93348 |
| 0.60 | 3.997 | 421.05 | 2.37504 | 5.5 | 0.0480 | 5.01 | 199.56950 |
| 0.65 | 3.405 | 358.76 | 2.78738 | 6.0 | 0.0403 | 4.21 | 237.50420 |
| 0.70 | 2.936 | 309.34 | 3.23270 | 6.5 | 0.0344 | 3.59 | 278.73757 |
| 0.80 | 2.248 | 236.84 | 4.22230 | 7.0 | 0.0296 | 3.09 | 323.26961 |
| 0.85 | 1.991 | 209.79 | 4.76658 | 7.5 | 0.0258 | 2.69 | 371.10032 |
| 0.90 | 1.776 | 187.13 | 5.34384 | 8.0 | 0.0227 | 2.37 | 422.22970 |
| 0.95 | 1.594 | 167.95 | 5.95410 | 8.5 | 0.0201 | 2.10 | 476.65774 |
| 1.00 | 1.439 | 151.58 | 6.59734 | 9.0 | 0.0179 | 1.87 | 534.38446 |
The above parameters are based on Chinese National Standard GB/T1234-2012. The tolerance of resistance per meter: 0.03-0.06mm is ±10%; 0.07-0.12mm is ±8%; 0.13-0.17mm is ±7%; 0.18-0.32mm is ±6%; A wire diameter above 0.32mm is ±5%. We provide nickel-chromium alloy products in various shapes, such as wires, ribbons, and rods. Other alloys like Cr30Ni70, Cr15Ni60 and Cr20Ni35/Cr20Ni30 are also available upon request.