| Customization: | Available |
|---|---|
| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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Nickel-Chromium Wire: A High-Performance Alloy for Demanding Applications
Nickel-chromium wire, an alloy composed primarily of nickel and chromium, is a versatile material widely used in the manufacturing of resistors and heating elements. Known for its excellent corrosion resistance, high-temperature stability, and consistent electrical resistance, it is a critical component in industries ranging from electronics to chemical processing.
Nickel-chromium wire is primarily made of nickel (Ni) and chromium (Cr), with the exact proportions tailored to specific applications. Additional elements like iron (Fe), manganese (Mn), and silicon (Si) may be added to enhance its properties.
Corrosion Resistance:
Resists oxidation and corrosion, ensuring durability in harsh environments.
High-Temperature Stability:
Maintains structural integrity and stable resistance values at elevated temperatures.
Electrical Resistance:
Offers consistent electrical resistance, making it ideal for precision applications.
Mechanical Strength:
Combines strength with flexibility, allowing it to be easily fabricated into various forms.
Resistor Manufacturing:
Used in electronic and electrical equipment for its stable resistance characteristics and high-temperature performance.
Heating Elements:
Widely employed in electric furnaces, ovens, and heating devices due to its ability to generate stable heat in high-temperature environments.
Chemical Industry:
Ideal for chemical reactors, pipelines, and other equipment requiring corrosion resistance and high-temperature stability.
Alloy Preparation:
Nickel and chromium are mixed in precise proportions and melted at high temperatures to form a homogeneous alloy.
Drawing:
The alloy is drawn into wires of varying diameters to meet specific application requirements.
Heat Treatment:
Wires may undergo heat treatment to enhance mechanical properties and ensure long-term stability.
Nickel-chromium wire is a reliable and versatile material, offering unmatched performance in high-temperature and corrosive environments. Its unique combination of properties makes it indispensable in industries such as electronics, electrical engineering, and chemical processing.
| 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 | |
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Specific heat
J/g.ºC
|
0.44 | 0.461 | 0.494 | 0.5 | 0.5 | ||
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Thermal conductivity
KJ/m.hºC
|
60.3 | 45.2 | 45.2 | 43.8 | 43.8 | ||
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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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