Inconel 625

UNS N06625 nickel_superalloy
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Solid-solution-strengthened Ni-Cr-Mo alloy with outstanding corrosion resistance in aggressive environments including seawater, acids, and high-temperature oxidising gases.

Applicable Standards

  • AMS 5666
  • ASTM B443
  • UNS N06625

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Ni 58.0 100.0 ~79.0
Cr 20.0 23.0 ~21.5
Mo 8.0 10.0 ~9.0
Nb 3.15 4.15 ~3.65
Fe — 5.0 ~2.5
Ti — 0.4 ~0.2
Al — 0.4 ~0.2
Co — 1.0 ~0.5
Ni 58.0–100.0% Cr 20.0–23.0% Mo 8.0–10.0% Nb 3.15–4.15% Fe 0.0–5.0% Ti 0.0–0.4% Al 0.0–0.4% Co 0.0–1.0%

Typical Applications

  • Marine hardware
  • Chemical plant
  • Aerospace exhaust
  • Subsea pipelines
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