Features: 1. It has electrical and thermal conductivity, stress corrosion, the expansion coefficient is small. Because it has good lubricity and processing properties. 2. Good resistance to corrosion; Can be applied to all types of reaction crucible, tube, etc. 3. The high thermal conductivity and thermal stability; Gold, molten silver, etc. all kinds of high-temperature resistant products. 4. Sufficient mechanical strength and impact resistance; 5. Easy to process, can be machined into a product according to the geometry. Specifications: Material: graphite. Graphite content: 99.9%. Melting point: 3850 + 50 ℃. Boiling point: 4250 ℃. Size: 50mm x 50mm x 20mm. Application: Graphite blocks/rods used in silicon carbide furnace, graphitization furnace and other metallurgical furnaces, resistance furnace lining and materials, and the permeability of graphic heat exchangers. Widely used in electronics, metallurgy, industry, steel and other fields. The products are of good quality, stable performance. Instructions for use: 1. Be careful not to give a mechanical impact, not from a fall or impact. 2. Must not be wetted by water, should be stored in a dry place. 3. The crucible after drying, must not come into contact with water. Color: black. Package contents: 1 x High graphite. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.