Graphite clay crucibles are high-temperature containers made primarily from natural graphite (20%~50%), refractory clay (30%~60%), and binders (such as tar, asphalt) through mixing, shaping, and high-temperature sintering. They combine the high thermal conductivity of graphite with the refractory properties of clay, offering a cost-effective alternative to pure graphite crucibles. They are widely used in small and medium-sized metal melting, casting, and chemical industries.