*HIGH-PURITY GRAPHITE - Crafted with 99.9% high-purity graphite and a high density of 1.8-1.82 g/cm³, our crucible resists contamination during melting, perfect for refining high-purity precious metals. *EXCELLENT THERMAL CONDUCTIVITY - This small graphite crucible boasts exceptional thermal conductivity, significantly reducing melting time and saving energy. *RELIABLE QUALITY - Made with high-quality craftsmanship, our graphite furnace can withstand temperatures up to 1300°C. It's crack-resistant during high-temperature casting and offers a long service life. The pouring spout groove makes it easy to use. *STABLE PROPERTIES - Unlike clay graphite crucibles, our high-purity graphite crucibles maintain stability when exposed to strong acids and alkalis, resisting corrosion and oxidation. *WIDE APPLICATION - Ideal for metallurgy, casting, machinery, chemical, and other industries, graphite crucibles are widely used for melting non-ferrous metals like gold, silver, copper, aluminum, and lead. *Specifications Material: Graphite Maximum operating temperature: 1300°C Top diameter: 75 mm (2.95 inches) Bottom diameter: 60 mm (2.36 inches) Inner diameter: 50 mm (1.97 inches) Height: 170 mm (6.69 inches) Gross weight: 1.36 kg (3 lbs) Package size: 9.5 x 9.5 x 19 cm (3.74 x 3.74 x 7.48 inches) Product size: 75 x 170 mm (2.95 x 6.69 inches) * Package Contents 1 x Graphite Crucible