Description
- For gold / Silver; Inner Melting and casting metals such as Gold, Silver, Brass, Aluminum, Copper, Zinc, Plumbum, etc. Excellent thermal stability for fast heating and cooling / Well corrosion resistance to strong acid and alkali / Good thermal conductivity properties which highly shorten the melting time and save energy / Great impact resistance performance to ensure the reliability of product quality. 99.95% Graphite. Ash content less than 0.1%. Better for Refining than Silicon Carbide Graphite Crucibles. Pure graphite crucible can NOT be heating by carbon furnace or charcoal kiln. It will be oxidized and cracked; Pure graphite will start to oxidize at 752 °F （400℃). The withstand temperatures can be 3200 °F if you use Air Electric Furnace. The withstand temperatures can be 5000 °F if you use Vacuum or Gas Protection Furnace. 1x Graphite Casting Melting Ingot. Well Packaged to ensure the item will be safely delivered.
Features1.100% Brand new and high quality.2.It is a graphite ingot mold for melting furnace.3.Fits for the casting of most metal, such as gold ,silver and copper.High Purity Refining Graphite Crucible Ingot MoldExcellent thermal stability, corrosion resistance and thermal conductivity propertiesMaterial: Pure GraphiteAsh ≤0.1%;Bulk density ≥1.82 g/cm3;Specifications:(1 troy ounce =31.1035g)►55x37x20 mmOuter size: 2.16 x 1.46 x 0.79 inchInner size: 1.77 x 0.95 x 0.39 inch (0.3 fl oz)Capacity: 150g gold / 80g silverPackage Included1x Graphite Casting Melting Ingot.
