As we all know, the traditional graphite crucible has the characteristics of heat resistance, corrosion resistance, easy to be oxygenized, water absorption, fragility, Crack/break under large temperature difference,etc. It has been used for some industries such as metallurgy for a long time and can not be easily replaced in a short time. But in recent years, there is a new type crucible made of silicon carbide and graphite has coming out and started to lead a trend with unique characteristics. This silicon carbide graphite crucible can be used for a very long time under the temperature of 1200 degree Celsius without Oxygen because of the specificity of its material. Comparing with the traditional graphite crucibles, it can keep a complete shape if sudden changing from 1200 degree Celsius to the normal temperature, without any cracks or breaks which simply means no pollution or damages to the melts. Besides these, It is also with water absorption and good thermal conductivity.
You can use this kind of silicon carbide SIC graphite crucible to smelt non ferrous metals like Cu, Ag, Au.