Kanthal® AF FeCrAl high-temperature wire operates safely in air up to 1300 °C. It is the go-to choice for shaping hooks, stilts and firing supports for ceramic or glass pieces, retaining mechanical strength during long soaks. The alloy also winds into durable custom heating elements for kilns, furnaces and other industrial thermal equipment.
Key features
Service temperature up to 1300 °C in air
High mechanical and thermal stability
Outstanding oxidation and creep resistance
Easily formed into hooks, supports, coils
Genuine Kanthal® FeCrAl alloy
Technical specifications
Material: FeCrAl alloy Kanthal® AF
Max operating temp: 1300 °C (air)
Resistivity ρ20: 1.39 Ω mm²/m; Ct ≈ 1.06 (900–1200 °C)
Density: 7.15 g/cm³
Tensile strength ~700 MPa; elongation 23 % (Ø 1 mm)
Composition: Cr 20.5–23.5 %, Al ~5.3 %, Fe balance