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SAE J421 PDF
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Cleanliness Rating of Steels by the Magnetic Particle Method (Stabilized: Jan 2018)
standard by SAE International, 01/09/2018
SAE J421 – Cleanliness Rating of Steels by the Magnetic Particle Method (Stabilized: Jan 2018)
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.
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