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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">lim</journal-id><journal-title-group><journal-title xml:lang="ru">Литье и металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1683-6065</issn><issn pub-type="epub">2414-0406</issn><publisher><publisher-name>BNTU</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/1683-6065-2021-1-73-77</article-id><article-id custom-type="elpub" pub-id-type="custom">lim-3300</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Металлургия</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Metallurgy</subject></subj-group></article-categories><title-group><article-title>Влияние микролегирования стали ниобием на механические свойства термоупрочненной арматуры</article-title><trans-title-group xml:lang="en"><trans-title>Effect of micro alloying of steel with niobium on the mechanical properties of heat-strengthened rebar</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пости</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Posti</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><email xlink:type="simple">arsposti93@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>БМЗ – управляющая компания холдинга «БМК»</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>“BSW – Management Company of the Holding “BMK”</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>24</day><month>03</month><year>2021</year></pub-date><volume>0</volume><issue>1</issue><fpage>73</fpage><lpage>77</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пости А.И., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Пости А.И.</copyright-holder><copyright-holder xml:lang="en">Posti A.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://lim.bntu.by/jour/article/view/3300">https://lim.bntu.by/jour/article/view/3300</self-uri><abstract><p>Одним из наиболее эффективных микролегирующих элементов при производстве арматуры класса 500 является ванадий. Однако технология производства – многостадийная и затратная, поэтому применение феррованадия делает производство ванадийсодержащей арматуры массового назначения нерентабельной. В связи с этим необходимо снижение себестоимости готовой продукции за счет замены феррованадия на феррониобий с сохранением всех механических, физических и эксплуатационных характеристик металла.</p><p>Цель работы – определить влияние количественного содержания ниобия в стали при производстве горячекатаной арматуры S-500WC в бухтах на стане 370/150 ОАО «БМЗ – управляющая компания холдинга «БМК» в соответствии с требованиями израильского стандарта SI 4466-3:2013 при различных температурно-скоростных параметрах проката. Нормируемыми показателями механических свойств арматурной стали S-500WC всех профилей (№ 8–16) в соответствии с требованиями стандарта SI 4466–3:2013 являются предел текучести – 500–650 МПа, пластичность – 1,15– 1,35, относительное удлинение – не менее 11 % и полное относительное удлинение при разрыве – не менее 7,5 %.</p></abstract><trans-abstract xml:lang="en"><p>One of the most effective micro-alloying elements in the production of class 500 fittings is vanadium. However, the production technology is multi-stage and expensive, so the use of ferrovanadium makes the production of vanadium-containing fittings for mass use unprofitable. In this regard, it is necessary to reduce the cost of finished products by replacing ferrovanadium with ferroniobium while preserving all the mechanical, physical and operational characteristics of the metal.</p><p>Objective: to determine the effect of the quantitative content of niobium in steel in the production of hot-rolled rebar S-500WC in coils at the mill 370/150 of OJSC “BSW – Management Company of the Holding “BMK” in accordance with the requirements of the Israeli standard SI 4466-3:2013 at various temperature and speed parameters of rolled products. The normalized mechanical properties of s-500WC reinforcing steel of all profiles (No. 8–16) in accordance with THE requirements of si 4466-3:2013 are: yield strength – 500–650 MPa, ductility – 1.15–1.35, elongation of – at least 11 % and total elongation at break of – at least 7.5 %.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ниобий</kwd><kwd>механические свойства</kwd><kwd>термоупрочнение</kwd><kwd>арматура</kwd><kwd>класс прочности</kwd><kwd>микролегирование</kwd><kwd>температура самоотпуска</kwd></kwd-group><kwd-group xml:lang="en"><kwd>niobium</kwd><kwd>mechanical properties</kwd><kwd>thermal strengthening</kwd><kwd>reinforcement</kwd><kwd>strength class</kwd><kwd>micro-alloying</kwd><kwd>self-release temperature</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Yue S., Jonas J. J. 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