The SiC heating element with equal diameter belongs to substitute products of large-end SiC heating element,it has the merits such as small end resistance,long working life and energy conservation,etc. It is commonly used in the industries such as rare earth phosphors,electronics, magnetic materials,powder metallurgy and precision casting,etc. It can be used as the heating elements of pushed-plate furnace,mesh-belt furnace,car-type furnace and box-type furnace .