Inconel® 901 Nickel Bar - AMS 5660, 5661

Inconel® 901 bar is a chromium-nickel-iron base, age hardenable superalloy designed for high strength and corrosion resistance at elevated temperatures.  It is hardened by precipitation of nickel, titanium and aluminum compounds.  Typical applications for 901 bar include gas turbine engines, and high temperature bolting.

901 Inventory Size Ranges


0.875" - 2.500"

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Standard Inventory Specifications

  • B50A305B S12 (GE Energy)
  • AMS 5660
  • AMS 5661

Common Trade Names

  • Inconel® 901
  • NIMONIC® 901
  • Alloy 901

Common Applications of 901

  • Power generation
  • Discs
  • Rings
  • Shafts
  • Casings
  • Seals

Chemical Composition

Chemical Composition of Inconel® 901
Element Percent by Weight
C Carbon 0.10% max
Mo Molybdenum< 6.00%
Si Silicon 0.60% max
Mn Manganese 1.00% max
Ni Nickel 43.00%
Ti Titanium 2.90%
Cr Chromium 12.50%
Co Cobalt 1.0% max
Al Aluminum 0.35% max
B Boron 0.010/0.020%
Fe Iron Balance
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Physical Properties of Inconel® 901

901 Bar Non-magnetic, and generally offers high strength up to 1400 F, and oxidation resistance up to 1600 F.
Density 0.297 lb/cubic inch


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Mechanical Properties of Inconel® 901

901 bar is to ordered to AMS 5660 is supplied either solution annealed or solution annealed and aged, and may be machined in either condition.  Good results are often obtained by rough machining in the solution annealed condition and finishing after heat treatment.  Carbide tooling generally produces the highest cutting rates and is recommended for most turning operations involving uninterrupted cuts.  High speed steel tools may be used for interrupted cuts, finishing to close tolerances and cutting with the least amount of cold work hardening.  Care must be taken to ensure that a positive cutting action is achieved at all times, otherwise glazing (work hardening) will occur which will inhibit further machining.
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*INCONEL and INCOLOY are trademarks of the Special Metals Corporation group of companies

*NIMONIC is a trademark of the Special Metals Corporation group of companies.

*The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.