Against the backdrop of global dual-carbon goals and energy structure transformation, nuclear energy, as a safe, efficient and zero-carbon clean energy, has been repositioned as a core pillar of global new energy development in 2026. Major economies including the United States, the European Union, China, Japan and South Korea have successively issued nuclear energy revitalization plans, focusing on the R&D and construction of small modular reactors and fourth-generation high-temperature gas-cooled reactors. Compared with traditional large-scale nuclear power plants, new-type nuclear reactors have higher requirements for material safety, radiation resistance and long-term stability, bringing unprecedented growth space for the nuclear-grade graphite market.
Nuclear-grade graphite is the irreplaceable core structural and functional material of advanced nuclear reactors, mainly used in reactor moderator components, reflector structures, core support frames and thermal insulation systems. Different from industrial and aerospace-grade graphite, nuclear-grade graphite has extremely stringent impurity control standards, especially for boron elements. Boron has strong neutron absorption capacity, and trace boron impurities will interfere with the nuclear fission reaction balance of the reactor, affect the reactor operation efficiency, and even bring potential safety hazards.
For decades, the global nuclear-grade high-purity graphite market has been monopolized by a few European, American and Japanese enterprises. The ultra-deep impurity removal technology, low-boron raw material purification process and long-term radiation-resistant material modification technology have long been blocked by foreign technical barriers. Most graphite enterprises can only produce ordinary industrial graphite and cannot meet the extreme performance requirements of nuclear energy scenarios. The insufficient supply of high-quality nuclear-grade graphite has become a key bottleneck restricting the rapid expansion of global new nuclear energy equipment construction. In recent years, with the accelerated iteration of global nuclear energy technology, the market gap of low-boron ultra-pure nuclear graphite has continued to expand, and the industry is in urgent need of new high-quality suppliers with independent technical capabilities.
In terms of material performance, nuclear-grade graphite needs to have excellent comprehensive properties such as ultra-high purity, low anisotropy, strong radiation resistance, good thermal shock resistance and stable dimensional stability. During the long-term operation of nuclear reactors, graphite core components need to withstand high neutron radiation, high temperature alternating cycles and complex pressure environments. Ordinary graphite materials are prone to structural deformation, performance attenuation and micro-crack expansion after long-term radiation, which seriously affects the service life and operation safety of nuclear reactors. Therefore, the R&D and production of nuclear-grade graphite requires systematic technical accumulation in raw material screening, purification treatment, forming sintering and modification processing, and the industry entry threshold is extremely high.
Facing the global market gap and technical bottlenecks of nuclear-grade graphite, Jincheng Graphite has taken the lead in breaking foreign technical monopolies through years of independent R&D and technological innovation. The enterprise has built a professional nuclear-grade graphite R&D laboratory and a standardized production workshop specially for nuclear energy materials, forming a complete set of independent core technologies for low-boron ultra-pure graphite purification and radiation-resistant modification. By optimizing raw material formula and adopting multi-stage ultra-high-temperature deep impurity removal and special chemical purification processes, Jincheng Graphite successfully controls the boron equivalent concentration of graphite products below 2ppm and the total impurity content below 5ppm, far exceeding the international general nuclear-grade standard and reaching the advanced level of international leading products.
In terms of material stability optimization, Jincheng Graphite's R&D team has independently developed a radiation-resistant modification process for nuclear graphite. Through gradient sintering and uniform structural adjustment technology, the produced nuclear-grade graphite materials have ultra-low anisotropy, uniform internal structure and excellent radiation resistance. After long-term neutron radiation simulation tests, the product has no obvious dimensional deformation and performance attenuation, and can adapt to the long-term stable operation requirements of fourth-generation nuclear reactors and small modular reactors. At the same time, the product has excellent thermal shock resistance, which can resist extreme temperature changes inside the reactor and avoid structural damage caused by temperature difference impact.
At present, Jincheng Graphite's nuclear-grade ultra-high-purity graphite series products have passed the authoritative certification of international nuclear energy material testing institutions and meet the construction standards of global new-type nuclear reactors. The enterprise can provide customized nuclear-grade graphite blanks, core structural components and auxiliary thermal insulation parts for global nuclear energy equipment manufacturers and nuclear power project contractors. Relying on independent large-scale production capacity, Jincheng Graphite has realized stable mass production of high-standard nuclear-grade graphite materials, effectively making up for the global market supply gap and breaking the long-term monopoly of foreign enterprises in the nuclear-grade graphite field.
Industry authoritative institutions predict that with the large-scale commercialization of global fourth-generation nuclear energy technology, the global nuclear-grade graphite market size will exceed 4.5 billion US dollars by 2027, with a compound annual growth rate of more than 15%. As a domestic and international leading supplier of nuclear-grade graphite materials, Jincheng Graphite will continue to deepen technical research and development, further optimize product radiation resistance and structural stability, expand the production scale of nuclear-grade graphite products, and provide safe, reliable and high-standard core material support for the high-quality development of the global advanced nuclear energy industry.
