Two-Piece Ball Valve, Standard Port, 600 PSIG WOG/150 PSIG SWP, Solder Ends, Conforms to. MSS SP-110, Available Sizes (3/8" - 3"). Materials: Body: Cast Bronze ASTM B584, Ball: Brass w/Hard Chrome Plating ASTM B16 or 316 Stainless Steel ASTM A276, Stem: Brass ASTM B16 or 316 Stainless Steel.