Graphite Ingot Mold, Melting Casting Mould, Silver Ingot, for Gold Silver Aluminum Copper Brass Zinc Plumbum

Graphite Ingot Mold, Melting Casting Mould, Silver Ingot, for Gold Silver Aluminum Copper Brass Zinc Plumbum and Alloy Metals,(25x24x12mm-40g Gold; 21g Silver) [Ingot Mold Size] For Outer size:25x24x12mm/9.8x9.4x4.7in; Inner:20x18x7mm/7.9x7.1x2.8in; Capacity: 40g Gold; 21g Silver; Melting and casting metals such as Gold, Silver, Brass, Aluminum, Copper, Zinc, Plumbum, etc. Graphite oil bath, ingot gold, silver, copper, aluminum, glass, etc., non-sticking and not bursting, high-purity, high-density, high-strength graphite, fine processing, fine and smooth surface without visible pores. [Graphite Mold Composition:]99.95% Graphite. Ash content less than 0.1%. Excellent thermal conductivity and corrosion resistance. Better for Refining than Silicon Carbide Graphite Crucibles. [Casting Mold, Warm-Tips]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. They withstand temperatures can be 3200°F if you use Air Electric Furnace. They withstand temperatures can be 5000 °F if you use Vacuum or Gas Protection Furnace. [Metal Casting Molds Performance] Excellent thermal stability for fast heating and cooling / Well corrosion resistance to strong acid and alkali / Good thermal conductivity properties which highly shortens the melting time and saves energy / Great impact resistance performance to ensure the reliability of product quality. [Package]1x Graphite Casting Melting Ingot. If you have questions, pls feel free to contact us, we will deal with it asap. For any reason you're not completely satisfied, you can ask for a replacement or a full refund.