About Tungsten Carbide

Tungsten carbide has a series of excellent properties such as high hardness, high strength, good wear resistance, low thermal expansion coefficient and stable chemical properties,  which builds its important  status in modern tool materials, wear materials, high-temperature and corrosion-resistant materials etc..

Introduction and Production Process

Tungsten carbide is a powder metallurgical product which is sintered in a vacuum furnace or a hydrogen reduction furnace with cobalt, nickel or molybdenum as the binder, arranging various commonly used materials according to the hardness and toughness. As shown in the figure, composite crystal diamond (PCD) has the highest hardness, followed by cubic boron nitride (CBN) and cermets (Al203, SiC, Si3N4, etc.). The fracture toughness of superhard materials is low. The tungsten carbide has a good hardness and toughness in a wide range. Therefore, it has become the most widely applicable hard material and is widely used in engineering and tool products.