High Purity Refining Graphite Crucible Ingot Mold
[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.
[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.
Excellent thermal stability, corrosion resistance, and thermal conductivity properties
Material: Pure Graphite
Ash content less than 0.1%
Package:
1x Graphite Casting Melting Ingot