Steel Bars, Forgings, and Tubing, Nitriding, 1.4Cr - 1.2Mo - 0.3V (0.29 - 0.36C), Aircraft-Quality for Bearing Applications
This specification covers a nitriding grade of aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. AMS6497 and AMS6498 cover UNS K23280 having other quality levels.
Rationale:AMS6496B results from a Five-Year Review and update of this specification that revises composition testing analytical methods (3.1) and macrostructure (184.108.40.206), adds tensile testing strain rates (220.127.116.11.1), revises decarburization testing (18.104.22.168) and surface quality (3.4.2), prohibits unauthorized exceptions (3.6), and revises reporting (4.4) and identification (5.2.1).
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