Ideal for both professional and personal use, these graphite crucibles are perfect for melting and casting metals such as gold, silver, and copper. Their high-purity composition allows excellent performance and durability. Whether used in a furnace or for direct heating, these crucibles provide reliable and efficient results for all your metalworking needs. Features -Color:Black -Material:Graphite -Size:5.00X3.00X2.00cm/1.97X1.18X0.79in -Size:4.00X2.00X1.50cm/1.57X0.79X0.59in -Thermal conductivity: our graphite crucibles offer excellent thermal conductivity, allowing efficient heat transfer and faster melting processes, which significantly reduces production time -Solid design: these crucibles are ideal for refining processes and extending their lifespan compared to silicon carbide graphite crucibles -Hightemperature capability: designed to withstand extreme temperatures, our graphite crucibles are perfect for melting and casting various metals and alloys, enhancing production efficiency -Stable and lasting: the stable graphite structure of our ingot molds allows a longer service life, minimizing the need for frequent replacements and reducing operational disruptions -Precision casting excellence: ideal for precision casting and metal processing industries, our graphite crucibles meet the demands for high accuracy and stringent production requirements Package list: 4 x graphite crucible