SAE J421-1993
CLEANLINESS RATING OF STEELS BY THE MAGNETIC PARTICLE METHOD

Standard No.

SAE J421-1993

Release Date

1993

Published By

Society of Automotive Engineers (SAE)

Status

Be replaced 2004-07

Replace By

SAE J421-1994

Latest

SAE J421-2018

Scope

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.

SAE J421-1993 history

• 2018 SAE J421-2018 Cleanliness Rating of Steels by the Magnetic Particle Method
• 1994 SAE J421-1994 CLEANLINESS RATING OF STEELS BY THE MAGNETIC PARTICLE METHOD
• 1993 SAE J421-1993 CLEANLINESS RATING OF STEELS BY THE MAGNETIC PARTICLE METHOD
• 1977 SAE J421B-1977 CLEANLINESS RATING OF STEELS BY THE MAGNETIC PARTICLE METHOD