Isostatic graphite is a new type of graphite material developed in the 1960s. With series of excellent properties, isostatic graphite gets more attention in many fields. Under inert atmosphere, isostatic graphite’s mechanical strength will not weaker with the temperature rising, but will become stronger reaching the strongest value at about 2500℃. So its heat resistance is very good. Compared with ordinary graphite, more advantages it owns, such as the fine and compact structure, good uniformity, low thermal expansion coefficient, excellent thermal shock resistance,strong chemical resistance, good thermal and electrical conductivity and excellent mechanical processing performance.