How to identify the advantages and disadvantages of cemented carbide and the determinants of performance

Carbide, as a high-strength material, plays a pivotal role in modern industry. Its excellent hardness, strength, and wear resistance make cemented carbide an ideal choice for manufacturing high-performance cutting tools, wear-resistant parts, and special engineering structures. However, there are many types of cemented carbide products on the market with varying quality. How to identify their advantages and disadvantages and understand what factors determine their performance have become the focus of our attention.

To identify the advantages and disadvantages of cemented carbide, we must first start with its appearance. High-quality cemented carbide should have a uniform and dense structure, a smooth surface, and no defects such as cracks and bubbles. These appearance characteristics often reflect the inherent quality of the alloy. At the same time, we can also use some professional tools, such as microscopes, hardness testers, etc., to detect the microstructure and hardness of the alloy to evaluate its quality more accurately.

In addition to appearance inspection, chemical composition analysis is also an important means to judge the quality of cemented carbide. The main components of cemented carbide are tungsten carbide, as well as metal elements such as cobalt and nickel. The purity, particle size and proportion of these elements directly affect the performance of cemented carbide. Therefore, we can detect the element content and distribution in the alloy through chemical analysis and other methods to determine whether its quality is qualified.

So, what factors determine the performance of cemented carbide? This mainly involves three aspects: raw materials, production technology and use environment.

The choice of raw materials has a decisive influence on the properties of cemented carbide. The tungsten-to-cobalt ratio is one of the important parameters in cemented carbide, which directly affects the hardness and toughness of the alloy. When the tungsten-to-cobalt ratio is too low, the hardness and wear resistance of the alloy will decrease, and when the tungsten-to-cobalt ratio is too high, the alloy’s toughness will decrease. In addition, the size of carbides is also a key factor affecting alloy properties. Carbide sizes that are too large can cause the alloy to break, while carbides that are too small can affect its hardness and wear resistance.

The impact of the production process on the properties of cemented carbide cannot be ignored. The sintering process is a key step in the production of cemented carbide. Factors such as sintering temperature, time, atmosphere and pressure will have a significant impact on the properties of the alloy. At the same time, the heat treatment process is also an important factor affecting the properties of the alloy. For cemented carbide that requires quenching and tempering, the heating and cooling rates, temperature stability, etc. during the heat treatment process will have a direct impact on its performance.

The use environment is also an important factor in determining the performance of cemented carbide. Different working environments have different requirements for cemented carbide. For example, cemented carbide working in high temperature, high pressure, or corrosive environments needs to have higher heat resistance, pressure resistance, and corrosion resistance. Therefore, when selecting cemented carbide, we need to fully consider the characteristics of its working environment to ensure that it can meet actual needs.


My Carbides is a large enterprise focusing on the research, development, production and sales of copper products. With multiple production bases and R&D centers, its copper products sell well in domestic and foreign markets and are well received by customers.

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