Our steel shot meet SAE J444 Standard, ISO Standard. Moderate hardness, strong toughness and shock resistance, chrome content is 0.26%. Specification: S780, S660, S550, S460, S390, S330, S280, S230, S170, S110, S70 steel shot is used for industrial foundry, forging plant, heat treatment shop, steel construction plant, container manufacturer, ship builder, auto and locomotive manufacture. 1.Surface cleaning : Castings,forgings,die-castings,steel plates,H-shaped steel ,structural steel  2.Derusting and descaling : Castings,forgings,steel plates,H-shaped steel ,structural steel  3.Surface strengthening : Gears,heat-treated parts 4.Shot blasting & Shot peening : Steel plates,steel profiles