Cemented Carbides: Looking Ahead

As the “teeth” of modern industry, cemented carbides, with their exceptional hardness, wear resistance, and high-temperature stability, play an irreplaceable role in critical sectors such as aerospace, automotive manufacturing, and electronic information. From the first synthesis of tungsten carbide–cobalt alloy by German scientists in 1923 to today’s breakthroughs in ultrafine-grained materials and nano-coating technologies, the century-long evolution of cemented carbides is a testament to humanity’s relentless quest to push the boundaries of materials science. Looking back from the vantage point of 2026, the cemented-carbide industry is undergoing unprecedented transformation, with a future that is both fraught with challenges and brimming with limitless potential.

I. Technological Breakthrough: A Leap from “Hardness” to “Toughness”

The “hardness” and “brittleness” of conventional cemented carbides are inherently contradictory: high hardness delivers outstanding cutting performance, yet brittleness limits their applicability under complex service conditions. By controllably introducing nano-scale toughening units within the WC grains and establishing a coupling mechanism between the hard phase and the tough nanophase, simultaneous improvements in hardness and toughness have been achieved. Experimental results demonstrate that the WC–6Co cemented carbide produced using this technology exhibits a Vickers hardness of 1920 kgf/mm², a fracture toughness increased to 11.2 MPa·m¹/², and a transverse rupture strength of 3951 MPa, with overall performance surpassing that of comparable products.

This breakthrough not only addresses the inherent limitations of cemented carbides but also provides critical material support for high-end manufacturing. For instance, in the aerospace sector, the machining of difficult-to-cut materials such as titanium alloys and high-temperature superalloys places extremely stringent demands on tool hardness and toughness; in the new-energy vehicle industry, battery electrode roll-forming dies must simultaneously withstand high pressure and severe friction, conditions that conventional materials struggle to meet. The advent of nano-toughness-unit technology has enabled cemented carbides to be applied in an even broader range of extreme operating conditions, serving as a “hidden engine” that drives industrial upgrading.

II. Green Transition: From “Resource Dependence” to “Circular Economy”

The core raw materials for cemented carbides are tungsten and cobalt, both of which are globally scarce resources. Although China is the world’s largest producer of tungsten, its policies have been steadily tightened in recent years: in 2025, the total quota for tungsten mining was reduced by 6.45% year on year, and in 2026 it will be further cut by another 8%; the scope of export controls has also expanded, leading to a 27.5% year-on-year decline in tungsten product exports in 2025. Meanwhile, the price of tungsten carbide powder has surged from RMB 309 per kilogram at the end of 2024 to RMB 2,300 per kilogram in March 2026—a nearly sevenfold increase. These resource constraints and cost pressures are compelling the industry to accelerate its transition toward greener operations.

Enterprises are building a resource security system along three main pathways: first, overseas mergers and acquisitions—Chinese firms have invested in cobalt mines in the Democratic Republic of the Congo, Australia, and other regions to secure long-term supply; second, strategic reserves—establishing reserve mechanisms for critical metals such as tungsten and cobalt to dampen price volatility; and third, circular utilization—promoting recycling technologies for secondary metals to recover and reuse tungsten and cobalt from spent cemented carbides. For example, one company has achieved a tungsten powder purity of 99.9% by recycling used cutting tools from automobiles, reducing costs by 30% compared with primary mining. The green transition not only reduces reliance on primary resources but also emerges as a new growth driver for the industry: projections indicate that by 2030, the global market for recycled cemented carbide materials will exceed US$5 billion.

III. Demand Upgrade: From “Single Products” to “System Solutions”

The demand structure for cemented carbides is undergoing profound transformation. While traditional applications such as metal-cutting tools and mining drilling tools continue to exhibit stable demand, emerging sectors—including new-energy vehicles, photovoltaics, and 5G—are experiencing explosive growth. Take new-energy vehicles as an example: the per-vehicle consumption of cutting tools is 2.5 times that of conventional internal-combustion-engine vehicles, driven primarily by the machining requirements of the three-electric system (battery, motor, and electronic control) and the increasing use of lightweight materials such as aluminum alloys and high-strength steels. In 2025, China’s production and sales of new-energy vehicles are projected to reach 16.626 million units and 16.49 million units, respectively, representing year-on-year increases of 29% and 28.2%, which will directly boost demand for cemented-carbide cutting tools by 40%.

Downstream customers’ priorities have shifted from “functional performance” to “value creation,” driving the industry’s transformation from “single-product offerings” to “system-level solutions.” For example, in the aerospace sector, companies no longer limit themselves to supplying cutting tools; instead, they develop customized product portfolios that integrate “aircraft engine blades and missile guidance seekers” to enhance equipment reliability and service life. In precision machining, firms are introducing “ultrafine-grain cutting tools combined with intelligent presses” to achieve high-precision, high-efficiency machining. This shift not only elevates product value-added but also strengthens customer loyalty—statistics show that companies offering system solutions boast a customer repurchase rate 60% higher than traditional players.

IV. Future Prospects: From “Made in China” to “Smart Made in China”

As we stand at the dawn of 2026, the cemented carbide industry is poised to seize two historic opportunities: the deepening of domestic substitution and the accelerated global expansion. In the past, China’s cemented carbide output accounted for more than 40% of the global total, yet the country remained heavily reliant on imports for high-end products and was constrained by foreign control over core technologies. Today, thanks to breakthroughs in ultrafine-grain materials, nano-coatings, and cobalt-free, environmentally friendly formulations, domestically produced cemented carbides are increasingly penetrating the high-end market. For instance, a company has developed nano-coated cutting tools that deliver a 50% increase in cutting speed and triple the tool life compared with conventional tools, successfully gaining entry into the premium markets of Europe and North America.

In terms of global expansion, Chinese companies are establishing production bases in Southeast Asia, the Middle East, and other regions, leveraging local resources and market advantages to reduce production costs and mitigate trade risks. At the same time, by participating in the development of international standards and acquiring overseas technology firms, they are enhancing their global influence. According to forecasts, by 2030 the Chinese cemented carbide industry will have established a dual-drive model of “high-end domestic manufacturing combined with overseas resource security,” with its global market share expected to exceed 50%.

The future of cemented carbides lies in technological breakthroughs, green transformation, and the upgrading of market demand—and, above all, in the rise of “Made in China” toward “Smart Made in China.” Along this path, every enhancement in material performance, every innovation in manufacturing processes, and every reshaping of the market landscape underscores humanity’s relentless pursuit of the frontiers of industrial excellence. Just as cemented carbides combine exceptional hardness with remarkable toughness, the industry’s future development will require both the “hard power” of bold, forward-looking ambition and the “soft environment” of inclusiveness and innovation. Only by striking this balance can this “tooth” of modern industry seize the opportunities of our times and tackle even the toughest challenges.

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