Pure Graphite Crucible Metal Melting Gold Silver Scrap Casting Ingot Mould (5KG - Fit a Coke Can)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>【Size】Capacity: 5KG gold; Inner diameter: 69mm (larger than coke can); Height: 130mm (taller than coke can)</li><li>【Composition:】99.9% Graphite. Ash content less than 0.1%. Excellent thermal conductivity and corrosion resistance. Better for Refining than Silicon Carbide Graphite Crucibles.</li><li>【Application】Melting and casting metals such as Gold， Silver， Brass， Aluminum， Copper， Zinc， Plumbum， etc.</li><li>【Performance】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.</li><li>【Attention】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.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Ebz%2BV1BqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41n7lxxm76L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41VtnBbggFL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41pofj7h1HL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/319LF9fwUQL.jpg" noproxy>