1. Safety factor
Safety factors calculated from pressure, load factors are not sufficient in any case. Engineering applications and computer simulations determine the choice of safety factors. The safety factor should be both practical and sufficient to get the job done.
2. pressure
The flexural strength test is used to test the resistance of a particular carbide grade to general stress. In cemented carbide design, it is recommended to consider the stress on the component parts.
3. Impact resistance
Tungsten carbide is more impact resistant than steel. The greatest impact energy is absorbed by the elastic structure organized in the material. Some energy is converted through heat and friction. For stamping applications, it is important to consider impact resistance as a function of product composition when selecting a carbide grade. The grade with a large binder component has good impact resistance. At the same time, it is critical to reduce or eliminate all components that may cause stress when designing a stress-resistant product.
4. Abrasion resistance
Compared with steel, cemented carbide has better wear resistance. The wear resistance of cemented carbide products depends on the particle size of the selected powder. The lower the binder content, the finer the particle size, the better the wear resistance. If the product requires corrosion resistance and ensures sharp edges in size, grades with submicron particles can be selected.
5. Corrosion resistance
Material selection needs to take into account the operating environment. Although in a corrosive environment. Carbide performs better than other metals, but that doesn't mean it's completely inert. Cobalt in cemented carbide is susceptible to binder leaching in chloride liquids, and nickel will have better corrosion resistance than cobalt in this environment.
