This SAE Standard covers the engineering requirements for peening surfaces of parts by impingement of metallic shot, glass beads, or ceramic shot.
To induce residual compressive stress in surface layers of parts, thereby increasing fatigue strength and resistance to stress-corrosion cracking.
Changes to Table 1 are necessary due to the new cast steel shot sizes S-110 and S-170 as specified in SAE J444 not meeting table 1 for machine size uniformity. This table was developed using the table from MIL-S-13165C which has two additional sizes S190 and S130. SAE J444 is the reference document for high carbon cast steel shot and has never contained those sizes and the 0% max test sieve is not the same as specified in MIL-S-13165C.