{"id":340605,"date":"2026-03-06T01:15:00","date_gmt":"2026-03-06T05:15:00","guid":{"rendered":"https:\/\/inspenet.com\/?p=340605"},"modified":"2026-03-02T14:09:30","modified_gmt":"2026-03-02T18:09:30","slug":"russia-develops-steel-for-next-generation-nuclear-reactors","status":"publish","type":"noticias","link":"https:\/\/inspenet.com\/en\/news\/russia-develops-steel-for-next-generation-nuclear-reactors\/","title":{"rendered":"Russia develops steel for next-generation nuclear reactors"},"content":{"rendered":"\n<p>Scientists at the Central Research Institute of Mechanical Engineering Technology (CNIITMASH), part of Rosatom\u2019s Mechanical Engineering Division, have succeeded in developing a new type of <strong>steel for nuclear reactors<\/strong>. It is a <strong>heat-resistant<\/strong> austenitic steel, specifically designed to operate at extreme temperatures of up to <strong>600 degrees Celsius<\/strong> under high radiation and in contact with heavy liquid-metal coolants such as lead. <\/p>\n\n<h2 class=\"wp-block-heading\">What are its applications?<\/h2>\n\n<p>The new steel was designed for use in <strong>advanced fast reactors<\/strong>, particularly lead-cooled ones, such as the <strong>BREST-OD-300<\/strong>, the core of the strategic <strong>\u201cProryv\u201d (Breakthrough)<\/strong> project. Unlike VVER-type reactors, whose core reaches between 320 and 350\u202f\u00b0C, these new systems will operate between <strong>500 and 600\u202f\u00b0C<\/strong>, requiring materials capable of maintaining structural integrity and <strong><a href=\"https:\/\/inspenet.com\/en\/articulo\/corrosion-resistant-materials\/\" target=\"_blank\" rel=\"noreferrer noopener\">corrosion resistance<\/a><\/strong> under extreme conditions. <\/p>\n\n<p>As <strong>Sergei Logashov<\/strong>, Deputy Director General of CNIITMASH and Director of the Institute of Materials Science, explained, the steel\u2019s development integrates <strong>decades of experience<\/strong> in the behavior of metals in environments with <strong>heavy liquid coolants<\/strong>. Thanks to the use of advanced computational models, they achieved an alloy with superior characteristics in radiation durability, long-term strength, and excellent thermal stability. <\/p>\n\n<h2 class=\"wp-block-heading\">Laser welding test results<\/h2>\n\n<p>In parallel, the researchers evaluated the effectiveness of <strong><a href=\"https:\/\/inspenet.com\/en\/articulo\/laser-welding-applications-and-benefits\/\" target=\"_blank\" rel=\"noreferrer noopener\">laser welding<\/a><\/strong> on austenitic and martensitic-ferritic steels, in both homogeneous and heterogeneous joints, achieving significantly better productivity while maintaining <strong>high quality standards in the joints<\/strong>. This technology can be applied in both new and existing reactors, including VVER and compact RITM reactors. <\/p>\n\n<h2 class=\"wp-block-heading\">Implications for the industry<\/h2>\n\n<p>This combination of high-performance materials and welding technologies is part of the scientific foundation of the <strong>\u201cProryv\u201d project<\/strong>, whose goal is the <strong>industrial implementation of a closed nuclear fuel cycle<\/strong>. This cycle makes it possible to reuse nuclear waste as a raw material, increasing the sector\u2019s sustainability. <\/p>\n\n<p>The introduction of this steel for nuclear reactors represents a key competitive advantage for Russia in the global race to master <strong>fourth-generation nuclear energy<\/strong>, with both civilian and strategic applications in long-term energy supply.<\/p>\n\n<p><strong>Source: <a href=\"https:\/\/rosatommd.ru\/mediacenter\/news\/uchenyie-czniitmash-razrabotali-novuyu-stal-dlya-%C2%ABbyistryix%C2%BB-reaktorov-novogo-pokoleniya.html\" target=\"_blank\" rel=\"noreferrer noopener\">Rosatom<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The new material withstands 600\u202f\u00b0C and will be key for fast reactors with a closed fuel cycle.<\/p>\n","protected":false},"author":10019,"featured_media":340518,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categoria_noticias":[13026,13044],"etiqueta_noticias":[],"class_list":["post-340605","noticias","type-noticias","status-publish","has-post-thumbnail","hentry","categoria_noticias-energy","categoria_noticias-new-energies"],"acf":[],"_links":{"self":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/noticias\/340605","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/noticias"}],"about":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/types\/noticias"}],"author":[{"embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/users\/10019"}],"replies":[{"embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/comments?post=340605"}],"version-history":[{"count":0,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/noticias\/340605\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/media\/340518"}],"wp:attachment":[{"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/media?parent=340605"}],"wp:term":[{"taxonomy":"categoria_noticias","embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/categoria_noticias?post=340605"},{"taxonomy":"etiqueta_noticias","embeddable":true,"href":"https:\/\/inspenet.com\/en\/wp-json\/wp\/v2\/etiqueta_noticias?post=340605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}