Haynes™ 25

General Characteristics of Haynes™ 25

Haynes™ Alloy 25 offers outstanding room temperature ductility and excellent mechanical characteristics up to 1800°F (982°C) when fully annealed. This is a wrought, cobalt-base alloy that resists oxidation and carburization to 1900°F (1038°C).

Chemical Composition of Haynes™ 25

  • Carbon 0.05-0.15
  • Manganese 1.00-2.00
  • Silicon 1.00 max
  • Chromium 19.00-21.00
  • Nickel 9.00-11.00
  • Tungsten 14.00-16.00
  • Iron 3.00 max
  • Cobalt 46.00-53.00

Heat Treatment of Haynes™ 25

  • Gas turbine rotors
  • Parts to withstand high heat and stress

Applications of Haynes™ 25

  • Springs up to 1000°F (538°C)
  • High temperature parts

Machinability of Haynes™ 25

  • High-speed tools at low speeds with shallow cuts
  • 4-5° front and side relief, 8° side rake, 0-8° back rake, 15-30° side cutting edge angle, 10-15° end cutting edge angle, 1/32-1/16” nose radius
  • High speed drills with maximum pressure
  • Cutting fluids required

Workability of Haynes™ 25

  • Roll into sheets
  • Forge or roll into bars
  • Ideal for bending, drawing, stamping and spinning

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