Cemented Carbides: A Powerful Tool in Industrial Manufacturing

Within the vast landscape of industrial manufacturing, cemented carbide shines like a brilliant star, its outstanding performance and wide-ranging applications making it a pivotal force driving progress across numerous industries. From precision machining to demanding geological exploration, from cutting-edge aerospace to everyday electronics and telecommunications, cemented carbide is omnipresent—earning the well-deserved moniker “the teeth of industry” and underscoring its irreplaceable role in the industrial realm.

The birth of cemented carbide marked a major breakthrough in the field of materials science. In 1923, German scientist Schrötter added 10% to 20% cobalt as a binder to tungsten carbide powder, thereby successfully inventing the world’s first cemented carbide—tungsten carbide–cobalt alloy—whose hardness is second only to that of diamond. This innovative achievement opened up new possibilities for industrial manufacturing; however, early cemented carbides suffered from rapid tool wear and a tendency to chip when machining steel, problems that urgently needed to be addressed. In 1929, American scientist Schwarzkopf introduced titanium carbide—a complex carbide—into the original composition, significantly enhancing the cutting performance of tools and laying a solid foundation for the further development of cemented carbide. Subsequently, with continuous technological advances, coated cemented carbides emerged. In 1969, Sweden developed titanium carbide–coated cutting tools that tripled tool life and increased cutting speeds by 25% to 50%, thereby further promoting the widespread application of cemented carbide in industry.

The outstanding performance of cemented carbides is the core factor that makes them an indispensable industrial tool. They exhibit extremely high hardness, reaching 86–93 HRA at room temperature—equivalent to 69–81 HRC—and can still maintain high hardness even at elevated temperatures of 900–1,000°C. This property enables cemented-carbide cutting tools to effortlessly machine a wide range of hard materials, including stainless steel and high-manganese steel—materials that are notoriously difficult to cut—at cutting speeds 4–7 times higher than those achievable with high-speed steel, while offering tool life 5–80 times longer. In addition, cemented carbides possess exceptional wear resistance; under conditions of prolonged use or frequent abrasive wear, they can maintain their geometry and performance over extended periods, significantly extending the service life of tools and components. For instance, in mining and oil drilling, drill bits and cutting picks made from cemented carbides can operate continuously in harsh working environments, thereby reducing equipment downtime and maintenance costs. Furthermore, cemented carbides boast a compressive strength of up to 6,000 MPa and an elastic modulus of (4–7) × 10⁵ MPa, providing robust support for mechanical equipment.

The widespread application of cemented carbides underscores their critical role in industrial manufacturing. In the cutting-tool sector, cemented carbides are the material of choice for producing a wide range of tools, including turning tools, milling cutters, planing tools, and drills. Different compositions and properties of cemented carbides are suited to specific machining applications: tungsten–cobalt grades are ideal for short-chip machining of ferrous and nonferrous metals as well as for machining nonmetallic materials, whereas tungsten–titanium–cobalt grades are better adapted to long-chip machining of ferrous metals such as steel. In geological and mining exploration, cemented carbides’ high hardness, excellent impact toughness, and superior wear resistance make them the key material for exploration drill bits, down-the-hole drills used in oil and gas fields, and roller-cone drills, thereby providing robust support for resource development. In mold manufacturing, cemented-carbide dies—such as wire-drawing dies, cold-forging dies, and cold-stamping dies—are prized for their precision and durability, meeting the demands of high-precision machining. Moreover, cemented carbides are extensively employed in wear-resistant components and structural parts, including cemented-carbide nozzles, sealing rings, and bearings, thus ensuring the reliable operation of various types of machinery and equipment.

With the continuous advancement of technology, the application scope of cemented carbides continues to expand. In the aerospace sector, their high strength, exceptional hardness, and superior high-temperature resistance make them critical materials for manufacturing engine components and airframe structures. In the new-energy field, cemented-carbide cutting tools play a vital role in processes such as photovoltaic silicon-wafer slicing and lithium-battery electrode-sheet processing, thereby enhancing production efficiency and product quality. In the semiconductor industry, the precision machining capabilities of cemented carbides meet the stringent requirements of high-precision operations like chip fabrication.

However, the development of the cemented carbide industry also faces several challenges. Sharp increases in raw-material prices and supply constraints have placed significant cost pressures on cemented-carbide manufacturers. For instance, in February 2026, the CNC-tool maker Huarui Precision was compelled to raise the selling prices of its entire range of CNC tools due to rising raw-material costs. Moreover, the R&D and production technologies for high-end cemented-carbide products remain concentrated in a handful of developed countries, meaning that China still relies to some extent on foreign technology in the field of high-end tool manufacturing.

In the face of challenges, China’s cemented carbide industry is actively seeking breakthroughs. On the one hand, enterprises are increasing R&D investment, strengthening collaboration with universities and research institutions, enhancing their capacity for independent innovation, and striving to overcome technical hurdles in the development and production of high-end products. On the other hand, the government has introduced relevant policies to support the development of the cemented carbide industry and encourage enterprises to undertake technological upgrading and industrial transformation.

As a powerful tool in industrial manufacturing, cemented carbide plays an irreplaceable role in driving industrial development. With continuous technological advancements and the expanding scope of its applications, the cemented carbide industry is poised for even broader prospects for growth. We have every reason to believe that, through the concerted efforts of all stakeholders, China’s cemented carbide industry will steadily enhance its core competitiveness and successfully transition from a manufacturing giant to a manufacturing powerhouse.

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