Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) AMS6415V

DOI: https://doi.org/10.4271/AMS6415V

Issuing Committee: AMS E Carbon and Low Alloy Steels Committee

Publisher: SAE International

Pages: 10

Rationale: AMS6415V is the result of a Five-Year Review and update of the specification. The revision updates the Title to match the scope, prohibits unauthorized exceptions (3.6, 4.4.5, 5.2.1.1, 8.7), updates composition testing and reporting (3.1, 3.1.2), updates heat treatment specification (3.2.2), modifies Jominy requirements (3.3.3), updates macrostructure (Table 2, 3.3.1, 8.8), updates decarburization test methods (3.3.4.5), acknowledges changes to AMS2301 (4.2.1, 4.4.4), adds note on stock removal (8.5), and allows prior revisions (8.6).