What is HGI value of coke sample?

The HGI (Hardgrove Grindability Index) value of a coke sample measures its grindability, which indicates how easily the coke can be pulverized. The higher the HGI value, the easier it is to grind the material, typically on a scale from 0 to 100, where higher values correspond to better grindability. This index is useful in the coal and coke industries for optimizing processes such as combustion and gasification. Specific HGI values can vary based on the composition and quality of the coke sample.