GOST 7524-2015. “Steel grinding balls for ball mills”
Russian national standard (edition 2015) is applicable to the grinding balls manufactured by rolling and forging method and used for grinding the raw materials in ball mills. This document describes the requirements for raw materials and finished products (grinding balls); classification of grinding balls by groups of hardness and requirements; regulates the rules of labelling, packaging, delivery / receiving, transportation and storage. The document also describes rules and method of quality control the finished products. The standard is effective on the territory of the Russian Federation.