Iron-Chromium-Aluminum Alloy

0Cr21Al6Nb (Kanthal A1)

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Specifications
  • Wire Wire 0.05-7.5
  • Rod Rod 8-50
  • Flat Wire Flat Wire (0.05-0.35)*(0.5-6.0)
  • Strip/Foil Strip/Foil (0.5-2.5)*(5-180)
Chemical Composition
  • Chromium (Cr): 21.0-23.0
  • Aluminum (Al): 5.0-7.0
  • Other Additions: Opportune
  • Iron (Fe): Rest
  • Niobium (Nb): 0.5
Physical & Mechanical Properties
  • Grade: 0Cr21Al6Nb
  • Max. Service Temperature (°C): 1350
  • Resistivity at 20℃ (μΩ·m): 1.45
  • Density (g/cm³): 7.1
  • Thermal Conductivity (KJ/m.h.ºC): 46.1
  • Coefficient of Lines Expansion (α×10⁻⁶/20~1000ºC): 16
  • Melting Point (°C): 1510
  • Tensile Strength (N/mm²): 650-800
  • Elongation at Rupture (%): >12
  • Variation of Area (%): 65-75
  • Bending Frequency (F/R): >5
  • Hardness (H.B.): 200-260
  • Continuous Service Time (Hours/ºC): ≥50/1350
  • Micrographic Structure: Ferrite
  • Magnetic Properties: Magnetic