Fecralloy® Foil

Formula: Fe 72.8/Cr 22/Al 5/Y 0.1/Zr 0.1

Form: Foil/Film/Sheet

Material: Fecralloy®

Commodity: Alloys

Fecralloy® Foil are a new offering in our extensive range of foil metal products. With 82 variations now available, these iron-based alloy foils deliver exceptional magnetic and electrical properties ideal for applications in electric motors and transformers. Their optimized material composition enables higher efficiency and improved performance in wound components and magnetic assemblies across industrial, scientific and R&D settings. Engineers can leverage Fecralloy's versatile magnetic properties and corrosion resistance to enhance the design of electric devices and equipment.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Foil/Film/Sheet

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

Material Properties for Alloys

Mechanical Properties

Element	Value
Elongation at break( % )	<25
Hardness - Vickers( kgf mm⁻² )	230
Tensile strength( MPa )	560

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	134
Temperature coefficient( K⁻¹ )	0.0001

Magnetic Properties

Element	Value
Curie temperature( C )	600

Thermal Properties

Element	Value
Maximum use temperature in air( C )	1100-1300
Melting point( C )	1380-1490
Thermal conductivity( W m⁻¹ K⁻¹ )	16@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	11.1@20-100°C

Physical Properties

Element	Value
Density( gcm⁻³ )	7.22

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Fecralloy® Foil

Tolerances

Material Properties for Alloys