AMS6472H Steel, Bars and Forgings and Forging Stock, Nitriding, 1.6Cr - 0.35Mo - 1.1Al (0.38 - 0.43C) (135 Mod), Aircraft Quality, Hardened and Tempered, 112 ksi (772 MPa) Tensile Strength

AMS6472H is the result of a Five-Year Review and update of the specification. The revision updates the title to include product form and quality consistent with the Scope and Quality, adds composition reporting information (see 3.1.1), clarifies the macrostructure requirements (see 3.4.1 and 8.7), revises decarburization testing methods (see 3.4.4.4), incorporates the requirements of AMS2301 (see 4.2.1, 4.4.1, 4.4.3, and 4.4.5), adds ordering operations for forging stock (see 4.4.3), adds information on ordering bar (see 8.5), and updates the prohibition on product exceptions (note removed from Table 2; see 8.6).