Purpose This specification@ in conjunction with the general requirements for peening media covered in AMS2431@ establishes the requirements for the procurement of conditioned carbon steel cut wire shot with a hardness of 55 to 62 HRC. Application Conditioned carbon steel cut wire shot@ high hardness@ conforming to this specification is intended for use in peening metal surfaces to impart compressive stresses to these surfaces thereby increasing resistance to fatigue and stress-corrosion cracking. Generally@ high hardness conditioned carbon steel cut wire shot is used on parts of hardness 50 HRC or over