A crucible is a container used to hold metal for melting in a furnace and must be able to withstand the extreme temperatures encountered in melting metals. It must also be able to offer resistance to chemical erosion. Large flake graphite with its well pronounced crystal structure and strong covalent bonding can offer a higher melting point than virtually all metals being melted and good strength even when white hot. This strength also ensures a long service life and reduced formation of deposits and slag in crucible applications. Graphite also is used as covering material for high-quality molten metal - for example, high-purity flake graphite is used in copper and aluminum smelting.
|Refractory and Crucible Product Specs||Finished Grade||Mesh Size||Ash Content||Bulk Density||Moisture Content|
|Refractories||85-90%C||-50 +100||2-10%||1.12 gm/cm3|