Graphite crucible has good thermal conductivity and high temperature resistance, the use of high temperature, the thermal expansion coefficient is small, the rapid heat, quenching has a certain anti-strain properties. Right acid, alkaline solution, strong corrosion resistance, with excellent chemical stability. Due to its excellent performance, graphite crucible is widely used in metallurgy, casting, machinery, chemical and other industrial sectors for the smelting of alloy tool steel and the smelting of non-ferrous metals and their alloys, and has good technical and economic effects. Graphite Crucible’s main raw material is crystalline natural graphite, maintaining the original variety of natural graphite physical and chemical properties. Graphite acid, alkaline solution of strong corrosion resistance, with excellent chemical stability.