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SAE AMS2759/6

Revision C, June 2018

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(R) Gas Nitriding of Low-Alloy Steel Parts

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Product Details:

  • Revision: Revision C, June 2018
  • Published Date: June 2018
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 10
  • ANSI Approved: No
  • DoD Adopted: Yes

Description / Abstract:


This document specifies the procedure and requirements for gas nitriding low-alloy and tool steels by the use of raw or dissociated ammonia. Additional alloys and steel families (e.g., stainless steels) can also be nitrided using parameters acceptable to the cognizant engineering organization.


The nitriding process described herein has been used typically for producing a wear resistant and fatigue resistant surface on steel parts, but usage is not limited to such applications. This process only applies to gas nitriding. Other processes, such as salt bath nitriding perAMS2753, ion nitriding per AMS2759/8, automated gas nitriding controlled by nitriding potential per AMS2759/10, automated gas nitrocarburizing by potential per AMS2759/12 and gas nitrocarburizing per AMS2757, are not included.

The provisions of this specification revision shall become effective 90 days after publication.


Processes covered by this specification are classified as follows:

Class 1: Two-stage nitriding with maximum applied white layer of 0.0005 inch (13 pm).

Class 2: One-stage nitriding with a maximum applied white layer of 0.001 inch (25 pm).

If no class is specified, either Class 1 or Class 2 may be provided.
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