Description40*40mm Graphite Crucible with Lid Lab Supply Articles The graphite crucible has good thermal stability， suitable for emergency heat or cold usage condition. Excellent corrosion resistance， impact resistance， acid resistance and alkali resistance. The graphite crucible has good thermal conductivity properties， it can greatly shorten the melting time and saved energy. The ash of graphite crucible is less than 0.1%， to ensure that the precious metal in the smelting is not contaminated. It can melt gold， silver， platinum and other precious metals and other alloys with long service life.SpecificationsMaterial: GraphiteInner Diameter: 30mmOuter Diameter: 40mmInner Height: 35mmOuter Height: 40mmNotePlase allow a bit hand measuring error.Package included1 x Graphite Crucible