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The only one in the world! Anshan Steel tackles China's nuclear power bottleneck problem
[2020-02-27]

Recently, Anshan Iron and Steel Co., Ltd. successfully developed the four generation nuclear power 600MW demonstration fast reactor project 316H austenitic stainless steel product development, and completed the first batch of contract supply, solved the product "scratch" problem from scratch. Angang therefore became the only enterprise in the world to rely on its own equipment to produce the product.

With the pressure of economic development and environmental deterioration in the world, the construction of nuclear power and the use of nuclear energy have become the focus of the next 10 to 20 years. China has made significant progress in nuclear power development and construction. The three generation of nuclear power technology has reached the world's advanced level, and the four generation nuclear power technology has reached the international advanced level. Among them, the four generation nuclear power 600MW demonstration fast reactor project is leading the development of the industry, representing the direction of nuclear energy development, and has extremely important strategic significance.

As a demonstration fast reactor, the safety requirements of the equipment are very strict, and the key equipment is mainly 316H austenitic stainless steel. But in terms of comprehensive performance and organization, it is very different from conventional 316H austenitic stainless steel, especially in terms of ferrite, grain size, intergranular corrosion, and uniformity of steel plate head and tail performance. It is almost harsh, so that during the bidding period, foreign old brand nuclear power stainless steel manufacturers are discouraged.

316H austenitic stainless steel has become the "necking" material of nuclear power equipment. In January 1, 2019, the leaders of Anshan Iron and Steel Group organized the mobilization meeting of 316H austenitic stainless steel production and identified the development of 316H austenitic stainless steel as "No. 1 project" of Anshan Iron and steel group. In the face of national demand, Anshan Iron and steel nuclear power steel project team has undertaken the project R & D, production and supply tasks in conjunction with the contract. In the face of many unfavorable factors such as stainless steel research and development, less production experience, numerous products involved, complicated process and strict technical specifications, etc., the advantages of the group were fully brought into full play, and the suitable production line was established by Angang Lianzhong, Angang cast steel company and Anshan Iron and steel group, and the product development and the first batch of contract supply were successfully realized.

Next, Anshan Iron and steel nuclear power steel project team will continue to carry out in-depth research and development of the product, further optimize the production process, improve the technological process, reduce production costs, shorten the manufacturing cycle, and fully support the construction of the four generation nuclear power 600MW demonstration fast reactor project in China.

Source: People's daily