In 2026, many countries around the world have adjusted their energy‑supply strategies, and nuclear energy, as a stable zero‑carbon base‑load energy source, has regained wide attention. Different from traditional large‑scale nuclear‑power‑station projects, small‑modular‑reactors feature small single‑unit power, short construction cycle, flexible site‑selection and higher inherent‑safety performance, and can be widely used in scenarios such as urban district heating, industrial high‑temperature steam supply and remote‑area power supply. A large number of SMR demonstration projects in North America, Europe and Asia are under construction or about to be started, which drives the rising demand for special core‑materials supporting small‑modular‑reactors. For several mainstream reactor technical routes, high‑quality nuclear‑grade graphite serves as neutron‑moderating material and structural‑component material inside the reactor core, which is one of the key materials restricting the commercial‑promotion progress of small‑modular‑reactors.
Nuclear‑grade graphite is completely different from ordinary industrial graphite in performance requirements. First of all, it needs ultra‑high purity, and trace impurity elements such as boron, cadmium which have strong neutron‑absorption capacity must be strictly controlled to ultra‑low content, otherwise it will interfere with neutron‑reaction efficiency inside the reactor. Secondly, the material must have excellent radiation‑resistance performance; under long‑term neutron‑irradiation environment, it should avoid excessive volume swelling, cracking and mechanical‑property attenuation. Third, it requires uniform internal structure, low anisotropy, stable thermal‑expansion coefficient and good high‑temperature‑creep‑resistance performance, so as to keep structural integrity under long‑term high‑temperature operation. Fourth, strict batch‑consistency control is required, and every batch of products must pass multiple‑dimensional physical‑chemical‑performance detection before delivery.
The production and manufacturing of nuclear‑grade graphite involves multiple‑link technical barriers including high‑purity raw‑material preparation, low‑anisotropy forming process, special‑atmosphere high‑temperature graphitization, multi‑times impurity‑removal treatment and complete‑system performance evaluation. For a long time, the global nuclear‑grade‑graphite market is monopolized by a small number of international enterprises. With the successive launch of a large number of small‑modular‑reactor demonstration projects, the global market demand for nuclear‑grade graphite components is rising steadily, and many project‑construction parties are facing the problem of relatively limited alternative suppliers.
It is worth noting that nuclear‑grade graphite products belong to special strategic‑material products, and cross‑border trade must comply with the nuclear‑non‑proliferation‑related supervision regulations of various countries. Suppliers need to have complete production‑quality‑management system, strict product‑traceability mechanism and perfect end‑use‑verification procedures, which further raises the industry access threshold.
Jincheng Graphite has carried out long‑term forward‑looking research on high‑purity low‑impurity graphite‑material technology facing nuclear‑industrial auxiliary‑application scenarios. Centering on the core pain points such as strict control of neutron‑absorbing‑impurity elements and optimization of material structural uniformity, the enterprise's R&D team has optimized raw‑material‑screening standards, improved batching‑forming process and adopted multi‑cycle high‑temperature‑purification process. The enterprise has built a special closed‑production workshop for ultra‑high‑purity graphite products, strictly isolating external impurity interference in the whole production process, and establishing a complete‑set‑of‑sample‑retention and whole‑process‑data‑archiving system for each batch of products.
At present, Jincheng Graphite has the capability to produce various types of ultra‑high‑purity graphite blanks and precision‑processed components for nuclear‑industry auxiliary‑equipment, which can be used in non‑core‑reactor‑core auxiliary‑facility scenarios such as high‑temperature‑test‑simulation devices and nuclear‑material‑treatment‑equipment. The enterprise strictly abides by international nuclear‑non‑proliferation‑relevant regulations, implements strict customer‑qualification review and end‑use‑confirmation procedures for all products facing nuclear‑industry‑related fields, and establishes complete order‑file‑management to ensure traceability of every batch of exported products.
Facing the global small‑modular‑reactor‑industry‑development trend, Jincheng Graphite will continue to deepen material‑technology research, cooperate with global nuclear‑energy‑research institutions and engineering‑enterprises to carry out material‑performance‑verification experiments, continuously improve product‑performance indexes, and provide reliable high‑purity graphite‑material‑solutions for global nuclear‑industry auxiliary‑equipment manufacturing.
