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Products Description

Cr10Ni90 Nichrome Wire Alloy Resistance Heating Wire Nickel Product Category
Cr10Ni90 resistance wire is a nickel chromium alloy material commonly used to manufacture electric heating elements with high corrosion resistance and good mechanical properties. This alloy is composed of approximately 10% chromium and 90% nickel, and exhibits excellent heat and corrosion resistance due to its high nickel content, making it particularly suitable for use in high temperature and corrosive environments.

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

The high nickel content endows Cr10Ni90 with excellent corrosion resistance.
Good machining performance, easy to make resistance wires of different shapes.
High electrical resistivity, suitable as an electric thermal conversion material.
Compared to other resistance wire materials, Cr10Ni90 has better stability at high temperatures.
Due to its non-magnetic and good antioxidant properties, Cr10Ni90 can be used in various complex environments.
This alloy also has good flexibility and weldability, making it easy to install and maintain.


Application

Electric heating elements in household appliances, such as heaters for electric kettles and ovens.
Industrial heating equipment, including high-temperature heaters used in the chemical and petroleum industries.
Resistance components in corrosion-resistant environments, such as heating equipment in seawater or acidic environments.
Process

Melting: Firstly, metal raw materials such as nickel and chromium are melted in a protective atmosphere to ensure the purity of the alloy.
Rolling: Hot rolling is performed on the alloy ingots obtained from melting to form plates or bars of different thicknesses.
Wire drawing: The rolled alloy material is gradually refined through a wire drawing machine to form a resistance wire of the required diameter.
Heat treatment: The resistance wire after drawing needs to undergo appropriate heat treatment, such as annealing, to optimize its microstructure and physical properties.
Surface treatment: Clean and treat the surface of the resistance wire to remove oxides and impurities, ensuring a bright surface of the resistance wire.
Testing: Test the physical properties such as electrical resistivity, tensile strength, and elongation of the resistance wire to ensure that the product meets the standards.
Packaging: Finally, package the qualified resistance wire to protect it from damage during transportation and storage.

Q&A

Q: What is the corrosion resistance of Cr10Ni90 resistance wire?
A: Cr10Ni90 resistance wire exhibits excellent corrosion resistance due to its high nickel content, making it particularly suitable for use in corrosive environments.
Q: What is the processing performance of Cr10Ni90 resistance wire?
A: Cr10Ni90 alloy has good mechanical processing properties and is easy to perform wire drawing, forming, and other mechanical processing, which allows it to produce resistance wires of different shapes according to application requirements.
Q: How does the Cr10Ni90 resistance wire perform in high temperature environments?
A: Cr10Ni90 resistance wire can maintain stability at high temperatures and has good heat resistance, making it suitable for electric heating elements that work in high-temperature environments for a long time.
Q: What is the approximate resistivity of Cr10Ni90 resistance wire?
A: The resistivity of Cr10Ni90 alloy is relatively low, but the specific values may vary depending on the size and state of the wire, usually lower than that of Cr20Ni80 alloy.

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Tel: 0086 13852926463
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Add: Renli Village, Fangxian Town, Danyang City, Jiangsu Province, China