Article(id=1319243266898379690, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1319243244198809867, articleNumber=null, orderNo=null, doi=10.13647/j.cnki.btgkj.2021.04.015, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1624377600000, receivedDateStr=2021-06-23, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1792461705182, onlineDateStr=2026-10-20, pubDate=1629820800000, pubDateStr=2021-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792461705182, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792461705182, creator=13701087609, updateTime=1792461705182, updator=13701087609, issue=Issue{id=1319243244198809867, tenantId=1146029695717560320, journalId=1185652524569653253, year='2021', volume='47', issue='4', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='1629820800000', pubDateStr='2021-08-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792461699771, creator='13701087609', updateTime=1792735371722, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320391107637264594, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1319243244198809867, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320391107637264595, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1319243244198809867, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=59, endPage=62, ext={EN=ArticleExt(id=1319243267133260715, articleId=1319243266898379690, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Research on Production Technology of R320Cr Rail Exported to Bangladesh by Baotou Steel, columnId=1187340471245357385, journalTitle=Science & Technology of Baotou Steel, columnName=Quality of Variety and Experiment and Research, runingTitle=null, highlight=null, articleAbstract=

The R320Cr steel is a heavy rail steel grade that can be used to produce heavy haul railway rail according to the European Railway Standards. Its main technical indexes include tensile strength ≥1 080 MPa, elongation ≥9%, range for hardness of tread center (HB) is 320~360. Its smelting composition range, production technology and operating points of each process are determined through the laboratory researches as well as its technical indexes in industrial production could meet the technical requirements of standard.

, authors=Jia-wei Wang¹, Gui-ying Zhao¹, Zhi-yong Chen², Yong-qiang Li³, Xue-song Pan⁴, authorsList=Jia-wei Wang, Gui-ying Zhao, Zhi-yong Chen, Yong-qiang Li, Xue-song Pan, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319243267552691117, articleId=1319243266898379690, tenantId=1146029695717560320, journalId=1185652524569653253, language=CN, title=包钢出口孟加拉R320Cr钢轨生产技术研究, columnId=1185887584472417142, journalTitle=包钢科技, columnName=品种质量与试验研究, runingTitle=null, highlight=null, articleAbstract=

R320Cr钢是欧洲铁路标准中可用于生产重载铁路用轨的重轨钢种，主要技术指标包括：抗拉强度≥1 080 MPa，延伸率≥9%，踏面中心硬度（HB）范围320~360。通过实验室研究，确定了R320Cr钢轨冶炼成分范围、生产工艺及各工序操作要点，工业生产的R320Cr钢轨各项技术指标满足标准技术要求。

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王嘉伟（1988-），男，内蒙古包头市人，工程师，现从事钢轨研发工作。

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王嘉伟（1988-），男，内蒙古包头市人，工程师，现从事钢轨研发工作。

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