Graphite Foundry Crucibles are made from a combination of graphite and clay, these crucibles 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 propane melting furnaces as well as a standard torch method. Rated to withstand temperatures up to 850°C to 1600°C. They are used to provide consistent performance in fuel-fired furnaces and medium/high frequency induction furnaces. The smaller sizes are typically used to melt precious metals, while larger sizes can be used for some ferrous alloys such as grey iron as well as to melt non-ferrous alloys. Note: Colour of Crucible might differ. Display on which image is viewed and shooting angles may cause the image to look a little different from the real thing. The size may vary by +/- 1-5mm.