MIL-STD-867D, DEPARTMENT OF DEFENSE STANDARD PRACTICE: TEMPER ETCH INSPECTION (24-OCT-2019)

MIL-STD-867D, DEPARTMENT OF DEFENSE STANDARD PRACTICE: TEMPER ETCH INSPECTION (24-OCT-2019)., This standard describes the requirements for the etch inspection of steel components to detect evidence of overheating or flaws in carburization. Etch inspection is typically used for bare low alloy steels heat treated to 180,000 pound per square inch (180 ksi/1241 Megapascal [MPa])) and higher or carburized parts, however usage is not limited to these applications. This standard may be used where applicable for repair, acquisition, and manufacture of parts and/or spare parts on military components.