Crafted from high-purity graphite, these crucibles offer excellent thermal conductivity. They are suitable for use in furnaces and can withstand the rigors of repeated heating and cooling cycles. The smooth surface allows easy release of metal, making the casting process seamless and efficient. Features -Color:Black -Material:Graphite -Size:5.00X3.00X2.00cm/1.97X1.18X0.79in -Size:4.00X2.00X1.50cm/1.57X0.79X0.59in -Heat transfer: the excellent thermal conductivity of our graphite crucibles accelerates the melting process, leading to shorter production cycles and increased efficiency -Practical: our crucibles are built to resist corrosion, making them more and suitable for refining applications compared to other materials -High temperature durability: capable of withstanding high temperatures, these graphite molds are suitable for melting and casting a wide range of metals and alloys, improving overall productivity -lasting performance: the stable graphite structure allows extended usage, reducing the frequency of crucible replacements and enhancing operational continuity -Precision and accuracy: perfect for precision casting and metalworking, our ingot molds cater to the needs of high precision and demanding production environments Package list: 4 x graphite crucible