N09901 - Nickel Iron Chromium Superalloy

The following data is provided for informational purposes only. It was provided with permission by Special Metals at www.specialmetals.com 

Incoloy  901, also known as UNS N09901 and Nimconic® 901, is used known for having high strength and resistance to most corrosive elements. Because of these characteristics, there is a always a need for parts forged in Incoloy  901 in many industrial sectors.

Chemical Composition
(%max., unless shown as range or min.)

Ni Cr Mo Fe Ti Co Cu Mg Si Al C S
Min./Max. 42.5 12.5 5.75 *Balance 2.9 1.0 0.5 0.5 0.4 0.35 0.1 0.03

*Reference to the ‘balance’ of a composition does not guarantee this is exclusively of the element mentioned but that it predominates and others are present only in minimal quantities.

Applicable Specifications

Product Specification

Forging Stock

BR HR 55, SAE AMS 5600, SAE AMS 5661, AECMA PrEN2176,

AECMA PrEN2177, ISO 9723, ISO 9725

Others AECMA PrEN2178

Common Fabrication Processes
Incoloy 901 is a highly durable be forged into nearly any shape. This includes:

  • Aircraft blades and sheets
  • Pumps and Tubes and Shafts
  • Engine Systems – jet systems
  • Turbines – Rotors
  • Rings and Discs

Industries that Commonly use Incoloy 901 Forgings:

  • Aerospace and Aviation Engineering
  • Power Generation
  • Oil & Gasoline