High Carbon Expandable Graphite Density: 1.75-1.9g/cm3 Granularity: 325mesh Compressive strength: 50-85Mpa High Carbon Expandable Graphite 1.It can ... be used in hot water, high temperature, high pressure steam, heat ... meters, etc. Making by rolling high-carbon flake graphite which is chemically treated in high temperature. It is the basis ...