Tungsten carbide are tungsten steels composed of tungsten carbide and metal cobalt. Based on the cobalt content, they can be classified into three categories: high cobalt (20% to 30%), medium cobalt (10% to 15%), and low cobalt (3% to 8%).

In general, the flexural strength and fracture toughness of these metal ceramics increase with the increase in cobalt content, while the hardness decreases. Tungsten-cobalt exhibit high compressive strength, impact toughness, flexural strength, and a smaller coefficient of thermal expansion, making them the most widely used type of carbides. They are used in various applications such as cutting tools, drawing dies, wear-resistant parts, stamping dies, nozzles, bushings, and drill bits.

Different applications of tungsten carbide require different grain sizes of WC. For precision machining of carbide cutting tools, trimmer blades, V-CUT blades, etc., ultra-fine, submicron, and fine-grained WC are used. Medium-grain WC is used for rough machining, while medium and coarse-grain WC are used as raw materials for gravity cutting and heavy-duty cutting. In mining tools, where rocks have high hardness and high impact loads, coarse-grain WC is used, while medium-grain WC is used for rocks with lower impact loads. For wear-resistant parts, when emphasis is placed on wear resistance, compressive strength, and surface finish, raw materials of ultra-fine, submicron, fine, and medium-grain WC are used, while medium and coarse-grain WC are primarily used for impact-resistant tools. The specific requirements for tungsten carbide grain size vary depending on the specific application of the carbide.

Yize Mold Co., Ltd. was established in 2007. It is a professional manufacturer of tungsten carbide wear-resistant parts. It is good at processing various tungsten carbide parts with tolerance requirements of 0.01mm – 0.001mm.