| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
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| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
| Purity: | 30%-90% |
| Alloy: | Alloy |
| Type: | Nichrome Alloy Wire |
| Powder: | Not Powder |
| Samples: |
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| Customization: |
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Nickel-chromium wire is a type of material composed of an alloy of nickel and chromium. It typically exists in the form of wire and is widely used in the manufacturing of resistors and heating elements. Here's a detailed introduction to nickel-chromium wire:
Composition and Properties:
1.Composition: Nickel-chromium wire is primarily composed of nickel and chromium, with the exact proportions varying depending on the specific application. Other elements such as iron, manganese, and silicon may also be added to adjust the alloy's properties.
2.Properties: The alloy exhibits excellent corrosion resistance, high temperature stability, and a relatively high electrical resistance. This allows it to maintain a stable resistance value at high temperatures while being resistant to oxidation and corrosion.
Applications:
3.Resistor Manufacturing: Nickel-chromium wire is a common material used in the manufacturing of resistors. Its stable resistance characteristics and high temperature stability make it suitable for use in electronic and electrical equipment.
4.Heating Elements: Due to its excellent performance at high temperatures, nickel-chromium wire is widely used in the manufacturing of heating elements for electric furnaces, ovens, and other heating devices. These elements can generate stable heat in high-temperature environments.
5.Chemical Industry: Nickel-chromium wire also finds applications in the chemical industry, particularly in environments where corrosion resistance and stability at high temperatures are required, such as in the manufacturing of chemical reactors and pipelines.
Manufacturing Process:
6.Alloy Preparation: The preparation of nickel-chromium wire typically involves mixing nickel and chromium in specific proportions and melting them at high temperatures to form a homogeneous alloy.
7.Drawing: Once the alloy is uniformly mixed, it undergoes a drawing process to produce wires. The diameter of these wires can be adjusted according to specific application requirements.
8.Heat Treatment: The wires may undergo heat treatment after drawing to enhance their mechanical properties and stability.
In summary, nickel-chromium wire is an alloy that performs well in high-temperature and corrosive environments, making it widely used in the electronics, electrical, and chemical industries. Its stable properties make it an indispensable material in many industrial applications.
| Performance | Material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
| Composition | Ni | 90 | Rest | Rest | 55.0-61.0 | 34.0-37.0 | 30.3-34.0 |
| 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 temperatureºC | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Meltiing point ºC | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Density g/cm³ | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| 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 | ||
| Elongation at rupture | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
|
Specific heat
J/g.ºC
|
0.44 | 0.461 | 0.494 | 0.5 | 0.5 | ||
|
Thermal conductivity
KJ/m.hºC
|
60.3 | 45.2 | 45.2 | 43.8 | 43.8 | ||
|
Coefficient of lines expansion
a×10-6/(20~1000ºC)
|
18 | 17 | 17 | 19 | 19 | ||
| Micrographic structure | Austenite | Austenite | Austenite | Austenite | Austenite | ||
| Magnetic properties | Non-magnetic | Non-magnetic | Non-magnetic | Non-magnetic | Non-magnetic | ||
| Shape | Sizes (mm) |
| Wire | 0.05-7.5 |
| Rod | 8-50 |
| Ribbon | (0.05-0.35)*(0.5-6) |
| Strip | (0.5-2.5)*(5-40) |
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