Nickel-Chromium-Molybdenum-Niobium Alloy

Inconel 625

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Inconel 625 is a solid solution strengthened nickel-based superalloy, reinforced with molybdenum and niobium for enhanced high-temperature strength and corrosion resistance. It exhibits exceptional oxidation resistance, maintaining excellent tensile and fatigue strength from cryogenic temperatures up to 980°C. The alloy also demonstrates superior resistance to stress corrosion in salt-laden environments, making it ideal for harsh industrial applications. Inconel 625 offers good workability, weldability, and formability, ensuring ease of fabrication.

Specifications
  • Plate / Sheet Plate / Sheet
    Thickness: 0.5mm-100mm
    Width: 500mm-2000mm
    Length: 1000mm-6000mm
  • Rod Rod
    Diameter: 5mm-500mm
    Length: 500mm-6000mm
  • Tube Tube
    Outer Diameter: 6mm-273mm
    Wall Thickness: 0.5mm-50mm
    Length: ≤ 12000mm
  • Wire Wire
    Diameter: 0.1mm-10mm
    Delivery Forms: Coiled wire or straight wire
Chemical Composition
  • Nickel (Ni): Rest
  • Chromium (Cr): 20-23
  • Iron (Fe): ≤5.0
  • Carbon (C): ≤0.10
  • Manganese (Mn): ≤0.50
  • Silicon (Si): ≤0.50
  • Molybdenum (Mo): 8.0-10.0
  • Niobium (Nb)+ Tantalum (Ta): 3.15-4.15
  • Sulfur (S): ≤0.015
  • Cobalt (Co): ≤1.0
  • Aluminum (Al): ≤0.4
  • Titanium (Ti): ≤0.4
Physical & Mechanical Properties
Inconel 625 Solid Solution Strengthened
Tensile Strength (Rm N/mm²) 830
Yield Strength (Rp 0.2N/mm²) 410
Elongation at Break A5 (%) 30
Brinell Hardness (HB) ≤290
Thermal Conductivity λ (W/m·℃) 12.1
Specific Heat (J/kg·°C) 430
Electrical Resistivity (μΩ·m) 1.28
Coefficient of Lines Expansion (α×10⁻⁶/20~600ºC) 12.3
Density (g/cm³) 8.44
Melting Point (°C) 1290-1350°C