Hastelloy S™

General Characteristics of Hastelloy S™

Hastelloy S™ is a high-heat, nickel-based alloy that exhibits exceptional thermal stability and high-heat mechanical properties while resisting oxidation up to 2000°F (1093°C). With simple heat treatment, Hastelloy S™ will exhibit high-heat and thermal fatigue strength. It maintains its ductility and strength after aging at 1600°F (871°C) for long periods under stress, and can be hot and cold worked readily.

Chemical Composition of Hastelloy S™

  • Carbon 0.02 max
  • Chromium 15.50
  • Molybdenum 14.50
  • Iron 1.0
  • Manganese 0.50
  • Silicon 0.40
  • Aluminum 0.20
  • Lanthanum 0.02
  • Boron 0.009
  • Nickel remainder

Heat Treatment of Hastelloy S™

  • 1950° F (1066°C)
  • Air cool

Applications of Hastelloy S™

    • High-temperature parts that:
      • Need to withstand severe cyclic heating
      • Demand a low coefficient of thermal expansion
      • Need to maintain annealed mechanical properties and dimensional stability

Machinability of Hastelloy S™

  • Conventional methods
  • Use tungsten carbide-tipped tools and can use high-speed tools
  • Keep tools continuously engaged in cut
  • Finish by grinding when close tolerances are needed

Workability of Hastelloy S™

  • Until final 20% reduction, forge from 2100°F (1149°C) to 1600°F (871°C)
  • Perform final 20% reduction from 1900°F (1038°C) to 1500°F (816°C)
  • With exceptional ductility, can be readily cold worked

To Send a Request for Quote for Hastelloy S™, please Click Here, or call 1.973.276.5000 or fax 1.973.276.5050.