# Cemented Carbides: A Comprehensive Analysis of Properties and Applications

As the “teeth” of modern industry, cemented carbides, owing to their outstanding physicochemical properties, have become a cornerstone material in fields such as machining, aerospace, and new energy. From cutting-tool manufacturing to precision mold making, and from oil drilling to electronic-component processing, this material—produced via powder metallurgy from refractory metal carbides and binder metals—is reshaping the global manufacturing landscape at a compound annual growth rate of 9.5%.

I. Material Properties: A Perfect Balance of Hardness and Toughness

The core advantage of cemented carbides lies in their unique microstructure. Using a typical formulation—tungsten carbide (WC) as the hard phase and cobalt (Co) as the binder—this material is produced through processes such as nano‑scale powder blending and vacuum sintering, resulting in a dense structure with a hardness of 86–93 HRA (equivalent to 69–81 HRC). It exhibits stable performance at elevated temperatures up to 500°C and retains high hardness even at 1,000°C. Its wear resistance is 5 to 80 times that of high-speed steel, while its tool life is 20 to 150 times longer than that of alloy tool steels.

Breakthroughs in material performance stem from technological innovation. A team at Beijing University of Technology has developed an ultra‑low‑cobalt cemented carbide with a fracture toughness of 9.7 MPa·m¹/² and a flexural strength exceeding 3,000 MPa, using a “glass‑to‑crystalline transformation plus reactive conversion” process. Meanwhile, Zhuzhou Cemented Carbide Group has engineered extruded vanadium carbide rods for PCB micro‑drills, achieving a vanadium carbide particle‑size distribution precision of 0.6–0.7 μm and enabling the machining of automotive PCBs to an accuracy of ±0.005 mm. These advances enable cemented carbides to withstand the impact loads encountered during the machining of aerospace engine blades while also meeting the nanoscale precision requirements of semiconductor wafer dicing.

II. Application Areas: Comprehensive Coverage from Traditional Manufacturing to High-End Equipment

In the field of machining, cemented carbide tools hold a dominant position. Tungsten–cobalt–titanium (YT) alloys are well suited for the finish machining of stainless steel and cast iron, offering cutting speeds 4 to 7 times higher than those of high-speed steel. Meanwhile, tungsten–cobalt (YG) alloys, prized for their excellent impact resistance, are the preferred choice for heavy‑duty cutting operations. In Fujian’s Liancheng industrial cluster, by optimizing the sintering process, the diameter of cemented carbide rods has been increased beyond 1 mm, enabling their successful application in the production of microdrills for 5G communication PCBs, with a monthly output exceeding 2 million units.

The aerospace industry imposes nearly stringent requirements on material performance. Gyroscopes used in missile guidance systems, made from cemented carbide, must maintain dimensional stability across an extreme temperature range of –50°C to 200°C; meanwhile, solid carbide end mills for machining aeroengine blades are required to exhibit red hardness such that their hardness remains no lower than 80 HRA at 600°C. Sandvik Coromant’s Ti(C,N)-based cermets with coated inserts have boosted the machining efficiency of titanium alloys by 30% and extended tool life by a factor of five.

The rise of the new‑energy industry has opened up a new growth trajectory for cemented carbide. In power‑battery manufacturing, cemented‑carbide dies are used for electrode‑sheet slitting and cell‑shell deep drawing, with each set boasting a service life exceeding 500,000 cycles. For photovoltaic silicon‑wafer slicing, diamond wire saws equipped with cemented‑carbide guide blocks achieve a 40% increase in cutting speed while reducing wire breakage to below 0.5%. Furthermore, Kunshan Changying Hard Technology has developed specialized tools for titanium‑alloy machining, successfully breaking foreign monopolies and driving a 25% reduction in the cost of domestic new‑energy vehicle components.

III. Technological Evolution: The Leap from Powder Metallurgy to Additive Manufacturing

Traditional manufacturing processes continue to be optimized. Low-pressure sintering, applied at a pressure of 100 kgf/cm², achieves an alloy density of 99.9% and a porosity below 0.1%; ultrasonic polishing keeps the mold surface roughness within Ra 0.02 μm, meeting the requirements for optical lens fabrication. The fully automated press developed by Xiamen Das Intelligent Equipment has tripled the efficiency of powder‑mixing preparation while reducing energy consumption by 40%.

New material systems are continuously emerging. Gradient cemented carbides, engineered with a compositional gradient, achieve a surface hardness of 92 HRA while maintaining a core toughness of 35 MPa·m¹/², making them well suited for deep‑well drill bits. Self‑lubricating cemented carbides, incorporating WS₂ solid lubricant, reduce the coefficient of friction to 0.08, significantly extending the service life of sealing components in oilfield valves. In the field of recycling, Zhongcheng New Materials Technology has established a tungsten‑steel circular‑economy system that boosts the recovery rate of tungsten from scrap molds to over 98%, with an annual processing capacity of 240 tonnes.

Additive manufacturing is ushering in an era of customization. A team from Tsinghua University has successfully used electron-beam selective melting to 3D‑print complex‑structured cemented carbide nozzles, achieving a density of 99.7% of the theoretical value. Meanwhile, South China University of Technology has developed a “one‑step carburization and sintering” process that reduces the production cycle from 15 days to just 72 hours. These advances cut the production cost of small‑batch, personalized cemented carbide components by 60%, providing material solutions for emerging applications such as robotic joints and medical implants.

IV. Industry Landscape: The Rise and Challenges of Made in China

The global cemented carbide market is characterized by a “rise in the East, decline in the West” trend. China accounts for 83% of global tungsten production, with companies such as Zhuzhou Cemented Carbide Group and Xiamen Tungsten holding about 30% of the domestic market share; their products are exported to more than 70 countries and regions. However, the high-end segment remains dominated by European and American firms: Sweden’s Sandvik controls 35% of the global cutting‑tool market, while U.S.-based Kennametal holds five times as many technology patents in the aerospace sector as its Chinese counterparts.

Technical barriers and raw-material price volatility pose a dual challenge. In 2026, the total output quota for tungsten concentrate was cut by 6.5% year on year, driving tungsten powder prices up 22% compared with the previous year; meanwhile, Europe’s Palbit announced a 15% price hike for cemented carbide products due to rising raw-material costs. At the same time, Sumitomo Electric Industries of Japan has developed a nanocrystalline cemented carbide coating technology that extends tool life beyond 200 hours, imposing technological pressure on Chinese firms.

Faced with both opportunities and challenges, China’s cemented carbide industry is accelerating its transformation and upgrading. Changying Hard Technology has strengthened its integrated “materials-plus-tools” strategy, boosting its market share in CNC cutting inserts to 12%. Meanwhile, Jiangxi Yaosheng Tungsten Industry’s 5G‑enabled smart factory has achieved end-to-end digital control, spanning the entire process from raw materials to finished products. With the “Made in China 2025” initiative setting a target of 90% self-sufficiency in high‑end molds, coupled with explosive growth in sectors such as new‑energy vehicles and commercial aerospace, the cemented carbide industry is poised to develop a market worth trillions of yuan by 2030.

From the 1923 invention of tungsten carbide–cobalt alloys by German scientist Schlechtel to today’s breakthroughs in nanocrystalline materials and additive manufacturing, the century-long evolution of cemented carbides has borne witness to humanity’s relentless pursuit of material frontiers. Amid the sweeping tides of intelligent manufacturing and green, low‑carbon development, this “industrial tooth” is now underpinning the transformation and upgrading of modern industrial systems—more precise, tougher, and smarter than ever before.

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