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Formula: Ni 75/Cr20/Al 2.5/Cu 2.5
Form: Coil
Material: Evanohm®
Commodity: Alloys
Hazard Pictogram: GHS07, GHS08
With a choice of 12 variations offering size and thickness options, our Evanohm® Coils meet a range of specialized needs. These coils offer a combination of high electrical resistivity and good corrosion resistance. They’re used in applications such as electrical heating elements, thermal cut-outs and surge protection devices. The choice of coil dimensions and alloy thicknesses available allow customization for resistance and power handling requirements.

Health hazard/Hazardous to the ozone layer

Serious health hazard

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Tolerances

Coil
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%

Material Properties for Alloys

Mechanical Properties
Element Value
Elongation at break( % ) 33
Modulus of elasticity( GPa ) 221
Izod impact strength( J m⁻¹ ) 42-100
Tensile strength( MPa ) 1210
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 134
Temperature coefficient( K⁻¹ ) 0.00001
Thermal Properties
Element Value
Maximum use temperature in air( C ) 300
Melting point( C ) 1340-1390
Specific heat( J K⁻¹ kg⁻¹ ) 435@23°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 14.6@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 11.7@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.1

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