This Standard specifies the shot peening applied to springs in order to improve their resistance force to fatigue, stress corrosion cracking, delayed fracture, etc. mainly by introducing compressive residual stresses into their surface.
JIS B 2711:2013 Referenced Document
JIS B 0021 Geometrical product specifications (GPS) -- Geometrical tolerancing -- Tolerancing of form, orientation, location and run-out
JIS B 0103 Springs -- Vocabulary*， 2015-12-21 Update
JIS G 0202 Glossary of terms used in iron and steel (Testing)
JIS G 5121 Corrosion-resistant cast steels for general applications
JIS G 5904 Testing method of cast shot and grit grain size