Graphite powder is a mineral powder, mainly composed of carbon element, soft in texture, and black gray in color; It has a greasy feeling and can contaminate the paper. The hardness is 1-2, and it can increase to 3-5 with the increase of impurities in the vertical direction. The specific gravity is 1.9~2.3. Under isolated oxygen conditions, its melting point is above 3000 ℃, making it one of the most temperature resistant minerals. At room temperature, the chemical properties of graphite powder are relatively stable and insoluble in water, dilute acids, dilute alkalis, and organic solvents; The material has high temperature resistance and conductivity, and can be used as refractory, conductive, and wear-resistant lubricating materials.

1. Used as refractory material: Graphite and its products have properties of high temperature resistance and strength, and are mainly used in the metallurgical industry to manufacture graphite crucibles. In steelmaking, graphite is commonly used as a protective agent for steel ingots and as a lining for metallurgical furnaces.

2. As a conductive material: used in the electrical industry to manufacture electrodes, brushes, carbon rods, carbon tubes, positive electrodes for mercury positive current transformers, graphite gaskets, telephone parts, coatings for television tubes, etc.

3. As a wear-resistant lubricating material: Graphite is often used as a lubricant in the mechanical industry. Lubricating oil often cannot be used under high-speed, high-temperature, and high-pressure conditions, while graphite wear-resistant materials can work without lubricating oil at high sliding speeds at temperatures ranging from 200 to 2000 ℃. Many devices that transport corrosive media are widely made of graphite material to make piston cups, sealing rings, and bearings, which do not require the addition of lubricating oil during operation. Graphite emulsion is also a good lubricant for many metal processing (wire drawing, tube drawing).

Graphite has good chemical stability. Specially processed graphite has the characteristics of corrosion resistance, good thermal conductivity, and low permeability, and is widely used in the production of heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, filters, and pump equipment. Widely used in industrial sectors such as petrochemical, hydrometallurgy, acid-base production, synthetic fibers, papermaking, etc., it can save a large amount of metal materials.