AMS6424H Steel Bars, Forgings, Mechanical Tubing and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.49 - 0.55C)

AMS6424H 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, 4.4.4, 5.2.1.1, 8.6), updates composition and testing requirements (3.1), eliminates approval requirements (Table 2), updates macrostructure requirements (3.3.1.1, 3.3.1.2, 8.9), updates decarburization test methods (3.3.4.5), modifies impact testing requirements (3.3.3), incorporates requirements of AMS2301 (4.2.1, 4.4.5), adds guidance per AS1182 (8.5), and allows prior revisions (8.7).