This standard specifies terminologies and definitions, types and dimensions, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage of high-tensile steel chains (round link) for mining (hereinafter referred to as round link chain).
This standard is applicable to pull chains of scraper conveyor, scraper reversed loader, boom-type roadheader, coal plough, drum shearer and other machinery for coal mine, and it is not applicable to lifting chains or suspension chain.
GB/T 12718-2009 The following standards are cited: