Steel Bars, Forgings, and Tubing, Nitriding, 1.4Cr - 1.2Mo - 0.3V (0.29 - 0.36C), Electroslag Remelted or Consumable Electrode Vacuum Remelted, Premium Aircraft-Quality for Bearing Applications
This specification covers a nitriding grade of premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. AMS6496 and AMS6498 cover UNS K23280 with other quality levels.
Rationale:AMS6497B results from a Five-Year Review and update of this specification that revises composition testing analytical methods (3.1) and macrostructure (3.4.1), adds tensile testing strain rates (220.127.116.11.1), revises decarburization testing (18.104.22.168) and surface quality (3.5.2), and prohibits unauthorized exceptions (3.7), and revises reporting (4.4) and marking (5.2.1).
Included in: AMS Metals: Carbon and Low Alloy Steels Subscription Learn More