Features: Function: For gold 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. Well thermal stability: according to the using conditions of graphite crucible snap heat and cold; Features: 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 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. Specifications: Material: graphite Color: black Bulk density ≥1.82 g/cm3 Electric resistivity ≥9 μ Ω m Bending strength ≥45 Mpa resist compression ≥65 Mpa Ash ≤0.1 % particle ≤43 um(0.043mm) Outside size: (Approx)55*37*20 mm(2.2'*1.46'*0.79') Cavity inner: (Approx)45*24*10mm(7.8'*0.95'*0.39') Capacity(gold):150g/5.29oz Package Included: 1 PC x Mold 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 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 ℃ high temperature Using Tips Stored in dry place do not get it wet after drying the crucible don't make it touch with water. Be careful not to give a mechanical impact force not from a fall or impact. Note: 1. Due to the light and screen difference the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.