Comparison of Properties of Cemented Carbide and High Speed Steel

Hard alloy and high speed steel performance comparison

In recent years, with the development of modern science and technology, the application performance requirements of various materials are also increasing. Hard alloy and high-speed steel are two super-hard materials that have been widely used in recent years. Their performance comparison is mainly from the following aspects.

First of all, from the production cost, the production cost of hard alloy is higher than that of high-speed steel, because high-speed steel is mainly used for carbon steel and alloy steel,while hard alloy can improve the performance of high-speed steel, so its production cost will be relatively higher.

Secondly, the heat resistance of hard alloy is higher than that of high-speed steel. The hardness of hard alloy increases with the rise of temperature, while the hardness of high-speed steel decreases with the rise of temperature, so the heat resistance of hard alloy is higher.

Thirdly, the cutting performance of hard alloy is higher than that of high-speed steel. The reason is that the chip breaking performance of hard alloy is better than that of high-speed steel, so the cutting performance of hard alloy is also better.

Finally, the impact resistance of hard alloy is higher than that of high-speed steel. The main reason is that the manufacture process of hard alloy is strict, the material is more complex, so its impact resistance is naturally higher than that of high-speed steel.

Above, is a brief introduction to the performance comparison of hard alloy and high-speed steel. It can be seen that the application performance of hard alloy is better than that of high-speed steel in terms of heat resistance, cutting performance, and impact resistance. However, the production cost of hard alloy is relatively high. Therefore, when purchasing materials, users should comprehensively consider the actual needs, performance requirements and economic conditions when selecting materials.

Hard-alloy and high-speed steel are both kind of materials that are mainly used for the production of tools. Historically, high-speed steel was developed way before the production of hard-alloy. It is an alloy of base metals with alloy elements added, such as tungsten, chromium, vanadium and molybdenum. It is tough, wear-resistant and can withstand large loads at a relatively low cost. It is mainly used in cutting tools and drilling bits.

On the other hand, hard-alloy is a new type of tool material formed by powder metallurgy. It consists mainly of cobalt, chromium and tungsten carbide and has many alloy elements added. It has good high temperature hardness, hot hardness, wear resistance and oxidation resistance. It is suitable for severe cutting conditions with high temperature and high speed.

In terms of performance comparison, the high-speed steel has high toughness, impact resistance and good wear resistance. It is an affordable material, can withstand larger loads, and is applied in heavy cutting, so it is suitable for cutting workpieces with high alloy content. Hard-alloy has higher hardness and wear resistance and is suitable for cutting difficult-to-cut materials, such as cast iron and stainless steel. It is also more suitable for fine machining of the inner hole and surface.

Considering the above performance comparison, hard alloy and high speed steel have different properties. In terms of precision machining, hard-alloy is a better choice, while in terms of machining hard-to-cut materials, high-speed steel is a better choice. In terms of cost, high-speed steel is usually more affordable than hard-alloy. Finally, it needs to be pointed out that different cutting tools may require different tool materials according to the actual application to enhance the efficiency and reduce the cost.