This standard specifies the requirements for grade 8 ordinary precision chains for cranes and hoisting chains and for general super-heavy use. The chain is a round steel electric welded short link chain that has undergone sufficient heat treatment and testing, and complies with the general acceptance rules stipulated in GB/T 20946. This standard applies to chains with a nominal size of 5mm to 45mm, and the temporary additional nominal dimensions of 6mm-35mm chains are also given in the appendix.
GB/T 24816-2009 Referenced Document
GB/T 20946-2007 Short link chain for lifting purposes-General conditions of acceptance
GB/T 6394-2002 Metal-methids for estimating the average grain size
GB/T 702-2008 Dimensions, shapes, weights and allowable deviations of hot-rolled steel bars
GB/T 24816-2009 history
2017GB/T 24816-2017 Round steel short link chains for general lifting purposes—Grade 8,medium to lerance sling chains for chain slings
2009GB/T 24816-2009 Short link chain for lifting purposes.Grade 8,non-calibrated,for chain slings etc.