AMS5884E Iron-Nickel Alloy, Bars, Forgings, and Rings 42Fe - 37.5Ni - 14Co - 4.8Cb (Nb) - 1.6Ti Solution Heat Treated, Precipitation Hardenable Multiple Melted, High Temperature, Low Expansion

AMS5584E is the result of a Five-Year review and update of the document. The revision prohibits unauthorized exceptions (3.8, 4.4.3, 5.2.1, 8.4), updates composition and reporting requirements (3.1, 3.1.1), limits hardness testing procedures (3.5.1.1.1, 3.5.1.2.2), adds strain rate control for tensile tests (3.5.1.2.1.1), revises largest allowable grain size (3.5.1.1.2), updates limiting bar sizes (4.4.1), and allows prior revisions (8.5).