#3-6 Kg ProCast Foundry Clay Graphite Crucible Cup with Pour Spout for Melting Metal, 6kg Big Graphite Crucible, Propane Torch, Melting Furnace Casting Refining Gold,Silver,Copper, Iron,Brass,Aluminum Description Graphite Foundry Crucibles are made from a combination of graphite and clay, and are recommended for melting your precious, or non-precious metals and can handle large batches of material. Their thick inner walls can handle direct heat and open flame foundries. They can be used with our propane melting furnaces as well as a standard torch method. Rated to withstand temperatures up to 1560°F to 2912°F (850°C to 1600°C). Measurements: 5-1/2" high x 5" in diameter (exterior dimensions); 5" deep x 4" in diameter (interior dimensions). The "" in title represents the amount of aluminum that the crucible can accommodate (in pounds); the "Kg" is for the amount of kilograms of brass and copper capacities.Please contact us with any questions. Thanks for looking! Features: Premium Graphite Clay Crucible Rated to withstand temperatures up to 1560F - 2912 F (850C - 1600C) Designed for melting gold, silver, copper, brass, aluminum, iron and more! Dimensions: 5-1/4" high x 4-3/4" in diameter (exterior); 4-3/4" deep x 4" in diameter (interior). Designed to be use with Propane Fuel/Gas Torch Applications and Medium/ High Heat Induction Furnaces and Kilns. NOT Recomended for Use In Coal Foundry Furnaces. Product Details: Product Dimensions: 5.25 x 4.75 x 5.25 inches Item model number: PMC Supplies Is Discontinued By Manufacturer: No Item Weight: 2.55 pounds Manufacturer: PMC Supplies Country of Origin: India Date First Available: November 5, 2011