Nature there are no pure graphite, which often contain SiO2, Al2O3, FeO, CaO, P2O5, CuO and other impurities. These impurities often appear to quartz, pyrite, carbonate and other minerals form. In addition, water, bitumen, CO2, H2, CH4, N2 and other gases portions. Therefore, the analysis of the graphite graphite pictures, in addition to the fixed carbon content was measured, it must also determine the content of volatile matter and ash at the same time. The main products are: a variety of high-purity, electrode graphite mold, metal continuous casting graphite mold, chemicals machinery seals, geological drill sintering mold, graphite heating elements, aluminum with a stopper, the base bottom bowl, pouring tube, chute jacket, graphite rings, cylinder, strip, graphite crucible, brush, graphite thermal field, graphite rotors, graphite seal ring, graphite mold, carbon graphite, metal casting graphite mold, carbon graphite mechanical seal ring, special high pure graphite, carbon graphite blade, sintered graphite mold, such as graphite graphite block rotary soft, black and gray; greasy feeling, can contaminate the paper. Hardness of 1 to 2 graphite effect, in the vertical direction with an impurity may be increased to increase its hardness 3-5. Specific gravity of 1.9 to 2.3. The specific surface area in the range of concentrated 1-20m2 / g graphite quality, in conditions of absence of oxygen, having a melting point above 3000 ℃, temperature is one of the most minerals. It conductivity, thermal conductivity. Graphite prices | Sea Dragon Carbon (certified) | graphite provided by Carbon Co., Ltd. Weifang Sea Dragon. Carbon Co., Ltd. Weifang Sea Dragon (www.longmentanye.com) Shandong Weifang, graphite and carbon products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the North Sea Dragon carbon industry leadership with the staff warmly welcome all inquiries negotiations to create the North Sea Dragon carbon industry a better future.