SAE J442-2026 (R) Tools for Peening Intensity Determination and Verification

SAE Recommended Practice defining equipment and supply requirements for measuring shot peening intensity and related surface enhancement processes.

SAE J442 FEB2026 defines requirements for equipment and supplies used to measure shot peening intensity and other surface enhancement processes. It covers Almen and subsize Almen test strips, strip holders, test strip gages, zero blocks, and electronic devices used for intensity measurement. The document specifies material, heat treatment, hardness, surface carbon, dimensional, flatness, calibration, data communication, and correlation requirements. It also includes figures and tables for test strips, holders, and gage configurations, with related guidance from SAE J443 and SAE J2597. This revision incorporates electronic devices and clarifies technical wording.

Application Scope: Shot peening operations, surface enhancement process control, Almen intensity measurement, equipment design and verification, calibration, and aerospace, automotive, and general manufacturing quality assurance.