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The hot rolled coil for drill pipe of high strength rotary drilling rig is successfully developed on the 2 250 mm hot continuous rolling production line of Baotou Steel with the component design of low carbon and niobium titanium microalloying as well as controlled rolling and cooling process. Its yield strength is not less than 550 MPa, tensile strength is not less than 650 MPa, percentage elongation after fracture is not less than 25%, longitudinal full-size impact energy is not less than 100 J at -20 ℃ as well as the matching of strength and toughness is good. Moreover, it is with good low temperature impact performance, cold bending performance and welding performance so that it could meet the technical requirements of hot rolled coil for drill pipe of rotary drilling rig for customers as well as its batch production and supply are realized in Baotou Steel.

, authors=Hai-rui Bai, Xiao-ming Yuan, Hui-hui Wei, authorsList=Hai-rui Bai, Xiao-ming Yuan, Hui-hui Wei, 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=1319244142610334645, articleId=1319244142107018163, tenantId=1146029695717560320, journalId=1185652524569653253, language=CN, title=高强度旋挖钻机钻杆用热轧卷板开发, columnId=1185887584472417142, journalTitle=包钢科技, columnName=品种质量与试验研究, runingTitle=null, highlight=null, articleAbstract=

采用低碳、铌钛微合金化成分设计及控轧控冷工艺，在包钢2 250 mm热轧生产线成功开发出高强度旋挖钻机钻杆用热轧卷板，该钢屈服强度≥550 MPa，抗拉强度≥650 MPa，断后伸长率≥25%，-20 ℃纵向全尺寸冲击功≥100 J，强韧性匹配良好，具有良好的低温冲击性能、冷弯性能和焊接性能，能够满足客户旋挖钻机钻杆用热轧卷板的技术要求。实现了包钢高强度旋挖钻机钻杆用热轧卷板产品的批量生产及供货。

, authors=白海瑞, 袁晓鸣, 魏慧慧, authorsList=白海瑞, 袁晓鸣, 魏慧慧, authorCompany=null, correspAuthors=null, authorNote=, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=p+oSFlCn03PPwv1hnLBtfQ==, magXml=zI/jPxbHkQnKkzpP9pJ0Ig==, pdfUrl=null, pdf=q0CoHBWFzecHcDqP0UDSPg==, pdfFileSize=222474, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=Y24SHaGbZJJKsB4L6sdWMQ==, mapNumber=null, fund=null)}, authors=[Author(id=1319244142916518842, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1319244142107018163, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319244143017182140, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1319244142107018163, authorId=1319244142916518842, language=EN, stringName=Hai-rui Bai, firstName=Hai-rui, middleName=null, lastName=Bai, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319244143101068221, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1319244142107018163, authorId=1319244142916518842, language=CN, stringName=白海瑞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=内蒙古包钢钢联股份有限公司技术中心，内蒙古 包头　014010, bio={"content":"

白海瑞（1986-），男，内蒙古土默特左旗人，硕士，高级工程师，现从事板带材产品研发工作。

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白海瑞（1986-），男，内蒙古土默特左旗人，硕士，高级工程师，现从事板带材产品研发工作。

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