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Products Description
NiCrFe Alloy Heating Resistance Wire Nichrome Cr20Ni35
Cr20Ni35 resistance wire is a nickel chromium alloy with the characteristics of low nickel and high resistance. Its resistivity and maximum operating temperature are relatively low, while its resistance temperature coefficient is high. This alloy has slightly lower oxidation resistance, but good sulfur resistance and good cold working performance. The maximum working temperature of Cr20Ni35 resistance wire is 800 ℃, suitable for producing heating elements used below 800 ℃, and widely used in various electric heating equipment and heating components.
Parameter
Nichrome series: Cr10Ni90, Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni30, Cr20Ni35
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 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 | -- | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic | |
Shape | Size (mm) |
Wire | 0.05-7.5 |
Rod | 8-50 |
Ribbon | (0.05-0.35)*(0.5-6.0) |
Strip | (0.5-2.5)*(5-40) |
For more details, pls directly contact us.
Feature
Low nickel content, providing moderate electrical resistivity and high resistance temperature coefficient.
Good cold working performance makes it easy to manufacture resistance wires in the desired shape.
Superior sulfur resistance, suitable for use in sulfur-containing environments.
Can provide stable resistance performance at lower operating temperatures.
Long service life, able to withstand repeated heating and cooling cycles.
Good corrosion resistance, suitable for use in harsh environments.
Application
Electric heating equipment, such as electric heating tubes and household electric heaters.
Industrial heating elements, especially periodic heat treatment furnaces such as track heating devices and tempering furnaces.
Q&A
Q: What is the maximum working temperature of Cr20Ni35 resistance wire?
A: The maximum working temperature of Cr20Ni35 resistance wire is 800 ℃.
Q: What is the approximate resistivity of Cr20Ni35 alloy at 20 ° C?
A: The resistivity of Cr20Ni35 alloy is approximately 1.0 at 20 ° C μ Ω · m.
Q: What industrial applications are Cr20Ni35 resistance wires commonly used for?
A: Cr20Ni35 resistance wire is commonly used in periodic heat treatment furnaces, such as track heating devices, tempering furnaces, as well as electric heating wires for electric heating tubes and household electric heaters.
E-mail: Info@hulkalloy.com
Mobile: 0086 13852926463
Tel: 0086 13852926463
Whatapps: 0086 13852926463
Add: Renli Village, Fangxian Town, Danyang City, Jiangsu Province, China
