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SAE J421

93rd Edition, December 1994

Complete Document

Cleanliness Rating of Steels by the Magnetic Particle Method

Includes all amendments and changes through Stabilization Notice (No longer revised / updated) , January 2018


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Product Details:

  • Revision: 93rd Edition, December 1994
  • Published Date: January 2018
  • Status: Historical
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 7
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This SAE Recommended Practice provides a rating procedure for the cleanliness rating of steels by the magnetic particle method. The procedure is based on counting the number of indications (frequency) and employs a weighted value to obtain a severity factor. The method outlined is similar to that described in SAE Aerospace Material Specification AMS 2301.
AIA/NAS Aerospace Standards