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Brand Name : | Victory |
Model Number : | NiCr 80/20 |
Certification : | ISO |
Price : | 50 - 500 kgs $35-$43 |
Payment Terms : | L/C, T/T, D/A |
Supply Ability : | 10 Tons Per Month |
Delivery Time : | 21-45 working days |
MOQ : | 10-50KGS |
Cr20Ni80 Wire: Nickel Alloy 1400℃ Melting Point Used In Industrial Furnaces
Cr20Ni80 nickel-chromium alloy wire is a high-performance resistive
electric heating material, mainly composed of 80% nickel and 20%
chromium, with a high melting point (about 1400°C-1450°C), and can
operate stably at working temperatures up to 1200°C. The
resistivity of this alloy wire is about 1.09μΩ·m at 20°C, and it
can maintain a stable resistance value in a high-temperature
environment. Its excellent oxidation resistance and corrosion
resistance make it perform well in high-temperature oxidizing
atmospheres, and it also has good processing properties and can be
processed into wires of different diameters.
Cr20Ni80 alloy wire is widely used in industrial furnaces, electric
heating elements, resistors, and high-temperature heating
equipment, and is especially suitable for scenes that require
long-term high-temperature stable operation. Its high melting point
and good high-temperature stability make it an ideal material for
industrial heating and household appliances.
Performance material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
Composición | 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 | |
Max. temperature( °C ) | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 | |
Melting Point ℃ | 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) | 0.76±0.05 | 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.℃ | - | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | |
Thermal conductivity KJ/m.h℃ | - | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Coefficient of lines expansion a×10-6/(20~1000℃) | - | 18 | 17 | 17 | 19 | 19 | |
Micrographic structure | - | Austenite | Austenite | Austenite | Austenite | Austenite | |
Magnetic properties | - | Nonmagnetic | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic |
1. Is Cr20Ni80 suitable for electric heating elements?
Yes, it is resistant to high temperatures, oxidation, and has
stable resistance. It is a common heating wire material.
2. Is Cr20Ni80 difficult to process?
It has good processability, but hardens quickly and requires
regular annealing.
3. How is the oxidation resistance of Cr20Ni80?
It has strong oxidation resistance, and a chromium oxide protective
film will form on the surface, which is suitable for high
temperature environments.
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