AMS5654H Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Mechanical Tubing, Rings and Forging Stock 18Cr - 11Ni - 0.60Cb (Nb) (347) Premium Aircraft Quality, Consumable Electrode Melted Solution Heat Treated

AMS5654H is the result of a Five-Year Review and update of the specification. The revision updates the Title to match the Scope, adds properties for small diameter bars, removing the associated original size limitations (see 3.4.1.1, Table 2, and 1.1), updates composition reporting (see 3.1.1), adds hot finish and cold finished properties (see Table 3), adds strain rate control during tensile testing (see 3.4.1.3), revises micro-inclusion rating method (see 3.4.4), adds quality requirements and associated guidance (see 3.5.2 and 8.5), and prohibits exceptions based on the new product sizes covered (see 4.4.2, 5.2.1.1, and 8.6).