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SAE ARP1820 Rev C

Chord Method of Evaluating Surface Microstructural Characteristics
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SAE ARP1820 Rev C

Chord Method of Evaluating Surface Microstructural Characteristics

PUBLISH DATE 2021
PAGES 7
SAE ARP1820 Rev C
This practice provides a method for evaluating microhardness and microstructure very close (0.002 inch (0.051 mm) or less) to the surface of a disk specimen. Specific accept/reject criteria for partial decarburization ( 3.7.1 ), inadvertent carburization/nitriding (3.7.3), total decarburization/intergranular oxidation ( 3.8 ), and other characteristics evaluated are to be found in the applicable specification where this ARP is referenced.
SDO SAE: SAE International
Document Number ARP1820
Publication Date May 19, 2021
Language en - English
Page Count 7
Revision Level C
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