Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Normalized and Tempered AMS6484F

DOI: https://doi.org/10.4271/AMS6484F

Issuing Committee: AMS E Carbon and Low Alloy Steels Committee

Publisher: SAE International

Pages: 10

Rationale: AMS6484F 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 (3.1, 3.1.2), updates heat treatment specification (3.2.1, 3.2.2), modifies Jominy requirements (3.3.3), updates macrostructure (3.3.1.1, 3.3.1.2, 8.8), updates decarburization test methods (3.4.4.5), acknowledges changes to AMS2301 (4.2.1, 4.4.4), adds note on stock removal (8.5), and allows prior revisions (8.6).