SAE AMS 6423H:2016-04-18

Steel Bars, Forgings, and Tubing 0.92Cr – 0.75Ni – 0.52Mo – 0.003B – 0.04V (Modified 98BV40)

This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.