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SAE ARP1820C

Chord Method of Evaluating Surface Microstructural Characteristics

NORMA vydána dne 1.6.2026

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Informace o normě:

Označení normy: SAE ARP1820C
Datum vydání normy: 1.6.2026
Země: Americká technická norma
Kategorie: Technické normy SAE

Anotace textu normy SAE ARP1820C :


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.

SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Standard