IS 12658 : 1989 Grinding Media Rolled/Forged Carbon and Carbon-Chromium Steels - Specification

1 Scope

1.1 This standard covers the requirements of carbon andcarbon-chromium steels rolled/forged grinding media(balls/cylindrical cylpebs) for use in cold or hot, wet or drygrinding purposes.

2 Reference

IS228Methods of chemical analysis of pig iron carbonand low alloy steels

IS 1387 :1967 General requirements for the supply ofmetallurgical materials

IS 1500 :1983Method for Brinell hardness test for metallicmaterials

IS 1586 :1988Method for Rockwell hardness test for metallicmaterials (Scales A-B-C-D-E-F-G-H-K)

IS 1956 : Part 6 :1976 Specification for forging (including drop forging)

IS 3668 :1981Specification for liver-pool twill (L-twill)cloth

IS 3703 :1980Code of practice for magnetic particle flawdetection

IS 4905 :1968Methods for random sampling