SAE

Wire, Steel Welding 2.0Cr - 10Ni - 8.0Co - 1.0Mo - 0.02Al - 0.06V (0.10 - 0.14C) (HY-180) Vacuum Melted, Environment Controlled Packaging (Stabilized: Aug 2017)
standard by SAE International, 08/02/2017

Steel, Welding Wire 1.0Cr - 10Ni - 3.8Co - 0.45Mo - 0.08V (0.14 ¿¿¿ 0.17C) Vacuum Melted, Environment Controlled Packaging
standard by SAE International, 05/23/2013

Steel, Nitriding, Bars, Forgings, and Tubing 1.6Cr - 0.35Mo - 1.13Al (0.38 - 0.43C) (135 Mod)
standard by SAE International, 07/29/2014

Steel, Bars and Forgings, Nitriding 1.6Cr – 0.35Mo – 1.1Al (0.38 – 0.43C) (135 Mod) Hardened and Tempered, 112 ksi (772 MPa) Tensile Strength
standard by SAE International, 05/17/2010