Graphite crucibles are commonly used in metal melting due to their high-density, good thermal conductivity, and resistance to chemical corrosion. They are an excellent choice for melting and refining a wide range of metals, including gold and other precious metals, and are mainly used in foundries and casting facilities. The pressure forming and machining methods can be used to make graphite crucibles to specific shapes and sizes, making them suitable for a wide range of applications. Graphite crucibles are also resistant to chemical corrosion, making them a good choice for melting and refining metals that are mixed with other elements or compounds, such as petroleum coke. The good thermal conductivity of graphite helps to ensure high-quality melting by evenly distributing heat throughout the crucible.