Incoloy™ 901

General Characteristics of Incoloy™ 901

With a high creep and rupture strength to 1400°F (760°C), Incoloy™ 901is a nickel-iron-chromium alloy ideally suited for gas turbine and aircraft applications. Because of its high nickel content, it can be joined with ferritic alloy steels without thermal expansion provisions.

Chemical Composition of Incoloy™ 901

  • Carbon 0.05
  • Manganese 0.48
  • Silicon 0.22
  • Chromium 12.8
  • Molybdenum 5.7
  • Titanium 2.4
  • Iron 35
  • Nickel 43

Heat Treatment of Incoloy™ 901

  • Anneal by holding at 2050°F (1121°C) for 2 hours before water quenching
  • Age by holding at 1375°F (746°C) for 24 hours before air cooling; expect approximately 0.1% contraction

Applications of Incoloy™ 901

  • Gas turbine parts, including rotor and compressor discs, and structural components
  • Aircraft applications

Machinability of Incoloy™ 901

  • Use high-speed steel tools and cutting fluid
  • Cut at 180 sfpm
  • Use cobalt high-speed cutting tools with heavy feeds and slow speeds
  • Grind high speed steel roughing tools to 8° side and back rake, 4-6° side clearance, 6-8° end clearance, 15-25° side cutting-edge angle, 1/32” nose radius
  • 15-35 sfpm surface cutting speeds with 1/16-1/32” deep cuts and 0.010-0.015 in./rev. feed
  • Finishing cuts to 35 sfpm; clorinated and sulfurized cutting oils
  • Cemented carbide  tools
    • 30 to 60 sfpm
    • 0° to 5° back rake
    • 5° side rake
    • Chemical-active water soluble lubricants or plain soluble oil and water or lubricants

Workability of Incoloy™ 901

  • Hot and cold
  • Forge between 2050°F (1121°C) and 1850°F (1010°C)
  • 1600°F (871°C) minimum temperature for light working without bending or tensile stress
  • Avoid exposure to sources of sulfur and sulfurous atmospheres

To Send a Request for Quote, please Click Here, call 973.276.5000, or fax (973) 276 – 5050