SAE AMS2759/6D

This document specifies the procedure and requirements for gas nitriding steel parts by the use of raw or dissociated ammonia. AMS2759/6D results from a Five-Year Review and update of this specification with changes to Ordering Information, Purpose (see 1.1), Application (see 1.2.2), Definitions (see 2.4), Measurement (see 3.2.2.1), Prior Heat Treatment (see 3.4.1), Stress Relieving (see 3.4.2), Cleaning (see 3.4.3), Masking (see 3.4.4), Visual Inspection (see 3.4.5), Nitriding Temperature Range (see 3.4.7.2), Cooling (see 3.4.8), Hardness at effective case depth (see Table 1), Case Hardness (see 3.6.2), Minimum case hardness requirements (see Table 2), Core Hardness (see 3.6.4), Case Microstructure (see 3.6.5), Acceptance Tests (see 4.2.1), Preproduction Tests (see 4.2.3), Process Control Specimens (see 4.3.1), Specimen Description (see 4.3.2), Inspection of Masking (see 4.3.5), Core Hardness (see 4.3.6), and Resampling and Retesting (see 4.5.1).

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