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Fecralloy® Disk

Available Configurations

Properties common to all products in this list

Composition: Fe 72.8/Cr 22/Al 5/Y 0.1/Zr 0.1 Form: Disk Material: Iron/Chromium/Aluminum (Fecralloy®) UNS Number: K92500 Commodity: Alloys Temper: Annealed Coating: Uncoated Surface Finish: Standard
Fecralloy® Disk is a precision-machined form of the iron-chromium-aluminum (FeCrAl) alloy, designed for applications requiring exceptional oxidation resistance, high-temperature stability, and structural integrity under cyclic thermal loading. Its ability to form a slow-growing, adherent alumina (Al₂O₃) layer at elevated temperatures provides outstanding protection in aggressive thermal and oxidative environments. The disk format offers mechanical stability and uniform thermal behavior, making it suitable for aerospace, renewable energy, and advanced thermal process industries. Specific uses include heat-resistant components in solar receiver systems, structural parts in high-temperature reactors, and protective elements in industrial gas turbines. In research, Fecralloy® Disks are used to study oxidation kinetics, high-temperature corrosion mechanisms, and heat flux management in thermal energy systems. Their combination of thermal resilience, oxidation protection, and design versatility positions them as key materials for high-performance, long-life components in demanding industrial and scientific applications.
Starting at $197.00 each
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Material Properties

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
each

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Available Configurations

Properties common to all products in this list

Composition: Fe 72.8/Cr 22/Al 5/Y 0.1/Zr 0.1 Form: Disc Material: Iron/Chromium/Aluminum (Fecralloy®) UNS Number: K92500 Commodity: Alloys Temper: Annealed Coating: Uncoated Surface Finish: Standard

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Tolerances

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