Tungsten carbide has a performance between the tools and construction materials between ceramics and high-speed steel, has a overall performance of high hardness, high strength, high density, corrosion resistance, high temperature oxidation resistance and low coefficient of expansion. Its life expectancy is ten times or even several times over steel. Commonly used tungsten carbide die is cold heading die, drawing die, hexagonal die, spiral mold, etc., Tungsten carbide die is very widely used in the mold industry. And the industry generally uses tungsten carbide cobalt.

WC-Co cemented Tungsten carbide is a new high-performance engineering materials. The direct use of the finished product after sintering alloy is widely used in molds, tools, measuring tools and wear-resistant, corrosion-resistant parts and other fields. The study found, WC- Co alloy can be heat strengthened, reinforced composite handle life of f tungsten carbide die is four times without heat treatment, is 50 times of the original the steel mold, technology, has a significant economic benefit.

Advantages of tungsten carbide dies

1.tungsten carbide with high hardness, high wear resistance and high red hardness, at 550 ℃ still maintain more than 56HRC hardness; 
2.Has a high modulus of elasticity, generally is (4 ~ 7) × 104kg / mm2, and excellent rigidity at room temperature; 
3.Have a high compressive strength which is greater than 6000MPa; 
4.Have good resistance to oxidation and corrosion resistance, acid resistance, alkali resistance and high temperature not easily oxidized; 
5.Has a low coefficient of thermal expansion, suitable for manufacturing high ,precision, sharp die.

Tungsten carbide dies can be divided into four categories according to use:

1.Tungsten carbide anvil 
2.Tungsten carbide drawing dies (such molds accounted for the vast majority of tungsten carbide die.) 
3.Cold heading, cold punching, forming and shaping dies 
4.Non-magnetic die 
5.Hot tungsten carbide die