625

UNS #N06625

625 is a nonmagnetic, corrosion- and oxidation-resistant, nickel-base alloy. Its outstanding strength and toughness in the temperature range cryogenic to 2000°F (1093°C) are derived primarily from the solid solution effects of the refractory metals, columbium and molybdenum, in a nickel-chromium matrix. The alloy has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions.

Type Analysis

  • Carbon (Maximum) 0.1
  • Phosphorus (Maximum) 0.015
  • Silicon (Maximum) 0.5
  • Nickel (Nominal) Balance
  • Titanium (Nominal) 0.4
  • Manganese (Maximum) 0.5
  • Sulfur (Maximum) 0.015
  • Chromium (Nominal) 20.00 - 23.00
  • Cobalt (Nominal) 1
  • Molybdenum (Nominal) 8.00 - 10.00
  • Iron (Nominal) 5
  • Aluminum (Nominal) 0.4
  • Columbium + Tantalum3.15 - 4.15

Applications

Heat shields, gas turbine engine ducting, furnace hardware, combustion liners and spray bars

Applicable Specifications

  • AMS 5599
  • AMS 5666
  • AMS 5837
  • ASTM B446
  • ASTM B475

Billet

Rounds

Strip

Wire

Technical Information

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