Product Code:SAE AMS6270 Title:Steel, Bars, Forgings, and Tubing 0.50Cr - 0.55Ni - 0.20Mo (0.13 - 0.18C) (SAE 8615) Issuing Committee:Ams E Carbon And Low Alloy Steels Committee Scope:This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.