natural flake graphite powder is a form of graphite that is formed from carbon deposits that are exposed to high pressure and high temperature. It is typically found in metamorphic rock.
The primary uses of flake graphite include: refractory materials, fuel cells, coatings, thermal materials, friction moderators, electrically conductive materials, lubricants, pencils, gaskets and advanced polymer systems. The crystalline structure of the flakes prevents the formation of impurities that can cause the graphite to oxidize.
Compared to synthetic graphite, it has the advantage of good high-temperature resistance and a high electric conductivity. It also has a low thermal expansion coefficient, which makes it more suitable for refractory application.
It can be used to make crucibles, seals and friction linings in many industries, including metallurgy, chemical, textile, defense industry and light industry. It is widely used as the protective agent in refractory material, the steel ingot and metallurgical furnace lining, bricks, magnesia carbon bricks, and graphite crucibles.
Flake Graphite can be manufactured with a variety of different granulations. Some of the standard granulations are 5 mesh USS and 0.7 micron.
Crystalline Vein Graphite, also known as Sri Lankan graphite and Ceylon graphite, is a natural type of graphite that occurs only in the island nation of Sri Lanka. This graphite is similar to other natural forms of graphite but has a much higher purity and better refractory properties than other crystalline types.
Crystalline vein graphite is a very good choice for energy, refractory, pencil, gasket, powder metallurgy, electrical component and carbon brush applications. It is available in lump, granular and powder forms and can be packaged as pails, paper bags, fiber drums and FIBC bulk bags.