Features: Well thermal stability : according to the using conditions of graphite crucible snap heat and cold; Well corrosion resistance, impact resistance performance, to ensure the reliability of product quality; Well resistance to strong acid, strong alkali; Good heat transfer performance of graphite crucible: for greatly shorten the melting for time and save energy; Ash content less than 0.1% , to ensure the precious metals in smelting is not contaminated; In high-temperature using process, it got small thermal expansion coefficient; And certain strain resistance to the thermal shock, quenching; Long service life. Utilization Graphite crucible is generally used in alloy tool steel smelting and smelting of nonferrous metals and their alloys. Graphite crucible can be used in the processing of graphite, graphite crucible, graphite casting crucible for tank,pull rods, mold and other graphite products. Graphite crucible let the products are more durable than ordinary material products, longer service life, able to withstand more than 2000 Degrees high temperature Using Tips Stored in dry place, do not get it wet after drying the crucible , don'for t make it for touch with water. Be careful not to give a mechanical impact force, not from a fall or impact. For gold and silver bullion melted forming a sheet to be used as a graphite crucible melting non-ferrous metals. Test analysis, as the ingot molds and other purposes Application: For gold and silver bullion melted forming a sheet to be used as a graphite crucible melting non-ferrous metals. Test analysis, as the ingot molds and other purposes Specifications Bulk density 1.82 g/cm3 Electric resistivity 9 m Bending strength 45 Mpa resist compression 65 Mpa Ash 0.1 % particle 43 um (0.043 mm) Size: As Picture, Note: Size for manual measurement, there may be a 0 to 2 for cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 PC X Gold Bar Melting Mold