1. It has excellent electrical and thermal conductivity, voltage corrosion resistance, and a small coefficient of expansion. It possesses good lubricity and processing properties. 2. Good resistance to chemical corrosion; Can be applied to all types of chemical reactions in crucibles, pipes, etc. 3. High thermal conductivity and thermal stability; Suitable for melting gold, silver, and other high-temperature resistant products. 4. Sufficient mechanical strength and impact resistance. 5. Easy to process, can be machined into products according to geometric specifications. Graphite Content: 99.9% Melting Point: 3850 + 50 ℃ Boiling Point: 4250 ℃ Size: 50mmX50mmX20mm Usage: Graphite blocks/rods are used in silicon carbide furnaces, graphitization furnaces, and other metallurgical furnaces, Resistance furnace lining and conductive materials, and graphite heat exchanger permeability. Widely used in electronics, metallurgy, chemical industry, steel, and other fields. Products are of high quality and stable performance. Usage Instructions: 1. Be careful not to expose it to mechanical shock; do not drop or bump it. 2. Do not let it get wet; store it in a dry place. 3. After drying the crucible, do not let it come into contact with water. Color: Black Material: Graphite Size: 50 x 50 x 20 mm Package Contents: 1 x Graphite Plate Sheet Block Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real item. The allowed measurement error is +/- 1-3 cm.