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AISI 347 Stainless Steel Foil

Available Configurations

Properties common to all products in this list

Commodity: Alloys Material: Stainless Steel Form: Foil/Film/Sheet Composition: Fe/Cr 18/Ni10/Nb Grade: AISI 347 UNS Number: S34700 Temper: Annealed Coating: Uncoated Surface Finish: Standard
AISI 347 Stainless Steel Foil is a niobium-stabilized austenitic alloy developed for high resistance to intergranular corrosion, oxidation, and creep at elevated temperatures, making it ideal for precision-engineered thin-section applications. The foil form ensures uniform thickness, surface quality, and flexibility, enabling it to be shaped or layered into complex assemblies. It is widely employed in aerospace recuperators, chemical processing liners, and heat shields in high-performance engines. Specific uses include compact heat exchanger plates, catalyst carrier substrates in emission control systems, and flexible substrates for advanced electronic displays. In research, AISI 347 foil is utilized in studies of creep rupture behavior, oxidation resistance, and surface engineering to extend operational lifespans in aggressive environments. Its combination of thermal stability, corrosion resistance, and precision manufacturability ensures enduring value for both industrial production and cutting-edge scientific applications.
Starting at $221.00 each
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Material Properties

Mechanical Properties
Element Value
Hardness - Brinell 160-190
Elongation at break( % ) <60
Modulus of elasticity( GPa ) 190-210
Izod impact strength( J m⁻¹ ) 20-136
Tensile strength( MPa ) 520-1100
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 70-73
Thermal Properties
Element Value
Maximum use temperature in air( C ) 800
Melting point( C ) 1400-1425
Thermal conductivity( W m⁻¹ K⁻¹ ) 16.3@100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 16-18@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 7.93
each

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Available Configurations

Properties common to all products in this list

Commodity: Alloys Material: Stainless Steel Form: Foil Composition: Fe/Cr 18/Ni10/Nb Grade: AISI 347 UNS Number: S34700 Temper: Annealed Coating: Uncoated Surface Finish: Standard

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Tolerances

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