AMS2759/6D Gaseous Nitriding of Steel Parts, Controlled by Ammonia Dissociation

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).