Graphite crucible has good thermal conductivity  high temperature resistance. In the process of high temperature use, the thermal expansion coefficient is small,  it has certain strain resistance to rapid heating  rapid cooling. It has strong corrosion resistance to acids  alkaline solutions,  has excellent chemical stability. It is widely used in the smelting of alloy tool steel  the smelting of non-ferrous metals  their alloys in metallurgy, foundry, machinery, chemical  other industrial sectors.  has a good technical  economic effect.