... .9g/cm3 Granularity: 325mesh Compressive strength: 50-85Mpa High Carbon Expandable Graphite 1.It can be used in hot water, high ... vessels, towers, manholes, hand holes and flange connection at the seal and system level gauge, level gauge, crystallization, etc. 4. Features ... quality product and best service for our customer! High Carbon Expandable Graphite