AMS5874D Alloy, Corrosion- and Heat-Resistant, Sheet, Strip, and Plate 29Fe - 22Cr - 21Ni - 18.5Co - 3.2Mo - 2.8W - 0.78Ta - 0.30Al - 0.05Zr - 0.05La - 0.20N (HS-556) Solution Heat Treated

AMS5874D is the result of a Five-Year Review and update of the specification. The revision updates composition testing and reporting (see 3.1 and 3.1.1), invokes a new specification for sheet finish (see 3.2.1), adds pyrometry controls and requirements for continuous heat treatment (see 3.3 and 3.3.1), adds strain rate control during tensile testing (see 3.4.2.1), allows incremental loading during testing (see 3.4.5.2), updates tolerances (see 3.6), prohibits unauthorized exceptions (see 3.7, 4.5.1, 5.1.1, and 8.5), adds country of origin requirements (see 4.5), and allows prior revisions (see 8.4).