SAE AMS5412 Steel Castings, Vacuum Melted, Vacuum Cast, Investment, Corrosion Resistant 13Cr 8.0Ni 2.2Mo 1.1Al (195,000 psi (1344 MPa) Tensile Strength (Condition H1000) Homogenized, Solution, Precipitation Heat Treated ( Reaffirmed: Apr 1994 Nov 2000 Sep 2007 )

standard by SAE International, 07/01/1990