Images are for guidance only and might not represent the final product.

Nickel/Iron Alloy Foil (Light Tight) (Ni80/Fe20)

Available Configurations

Properties common to all products in this list

Commodity: Alloys Material: Nickel/Iron Form: Foil (Light Tight) Composition: Ni 80/ Fe20 Temper: As Rolled Coating: Uncoated Light Tight: Light Tight Surface Finish: Standard
Nickel Iron Alloy Foil Light Tight (Ni80/Fe20) combines the soft magnetic properties and high permeability of nickel-iron alloys with a pinhole-free surface that fully blocks light transmission. The 80–20 composition offers excellent corrosion resistance, thermal stability, and consistent magnetic performance, making it ideal for electromagnetic shielding, sensor enclosures, and precision optical systems. Industries such as electronics, aerospace, and microscopy employ it for shielding sensitive equipment, creating light-blocking barriers in optical assemblies, and fabricating magnetic cores. Applications include electromagnetic compatibility housings, precision optical apertures, and magnetic sensor cases. In research, the light-tight quality supports controlled optical experiments, while its magnetic stability enables studies on shielding effectiveness and magnetic domain behavior. This unique combination of optical opacity and magnetic performance ensures value in both scientific experimentation and industrial systems.

Health hazard/Hazardous to the ozone layer

Serious health hazard

Starting at $337.00 each
No Minimum order Approx. 2 weeks leadtime Free technical support *Free delivery worldwide

Material Properties

Magnetic Properties
Element Value
Initial permeability 30000
Maximum permeability 400000
Coercivity (Hc)( A m⁻¹ ) <0.02
Curie temperature( C ) 460
Saturation flux density( T ) 0.77
Mechanical Properties
Element Value
Elongation at break( % ) <38
Tensile strength( MPa ) 930
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 62
Temperature coefficient( K⁻¹ ) -
Thermal Properties
Element Value
Melting point( C ) 1445
Thermal conductivity( W m⁻¹ K⁻¹ ) 34.6@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 12.9@20-100°C
each

Choose Your Options

Close

Available Configurations

Properties common to all products in this list

Commodity: Alloys Material: Nickel/Iron Form: Foil (Light Tight) Composition: Ni 80/ Fe20 Temper: As Rolled Coating: Uncoated Light Tight: Light Tight Surface Finish: Standard

We are collecting your products, please wait!...

Shipping restrictions and charges may apply for some hazardous materials.