Article(id=1294717599212925034, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1294717591537345363, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1767801600000, receivedDateStr=2026-01-08, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1786614330342, onlineDateStr=2026-08-13, pubDate=1780588800000, pubDateStr=2026-06-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1786614330342, onlineIssueDateStr=2026-08-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1786614330342, creator=13701087609, updateTime=1786614330342, updator=13701087609, issue=Issue{id=1294717591537345363, tenantId=1146029695717560320, journalId=1185652524569653253, year='2026', volume='52', issue='3', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='1780588800000', pubDateStr='2026-06-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1786614328512, creator='13701087609', updateTime=1786616758423, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1294727783402459675, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1294717591537345363, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1294727783402459676, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1294717591537345363, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=45, endPage=51, ext={EN=ArticleExt(id=1294717599397474411, articleId=1294717599212925034, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Study on Microstructure and Properties of Pipeline Steel L415M Produced with CSP Production Line, columnId=1187095652984042303, journalTitle=Rare Earth Steel, columnName=Variety Quality and Experimental Study, runingTitle=null, highlight=null, articleAbstract=

In order to expand the product type mix of CSP production line and break the technical bottleneck of producing microalloyed pipeline steel with compact process of strip steel, the industrial trial production is carried out based on Q355B bridge mode with smelting of KR (kambara reactor)-BOF (basic oxygen furnace)-LF (ladle furnace)-CC (continuous casting) and low C-Mn-Nb-Ti microalloying system by taking the pipeline steel L415M as the object in this paper. The results showed that the performances of sample with the specification of 9.75 mm could meet the requirements as well as there was performance fluctuation at head and in the direction of 45° for sample with the specification of 7.75 mm. Due to the limit of equipment conditions, the grain is coarser, strength is lower and yield ratio is higher for the product. The stability of product with thin specification could be improved by optimizing the composition and process, which could provide the technical support for large scale production of pipeline steel with the CSP production line.

, authors=Jiandong Wang1, Yan Cao2, Zhengfeng Liu1, Wei Zhang1, Wenkai Zhang1, Yingli Kang1, Zhilong Zhao1, Hui Chang3, authorsList=Jiandong Wang, Yan Cao, Zhengfeng Liu, Wei Zhang, Wenkai Zhang, Yingli Kang, Zhilong Zhao, Hui Chang, 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=1294717599703658604, articleId=1294717599212925034, tenantId=1146029695717560320, journalId=1185652524569653253, language=CN, title=CSP产线管线钢L415M的组织性能研究, columnId=1185887584472417142, journalTitle=稀土钢, columnName=品种质量与试验研究, runingTitle=null, highlight=null, articleAbstract=

为拓展CSP产线品种结构,突破紧凑式带钢流程生产微合金管线钢的技术瓶颈,文章以L415M为对象,采用KR-BOF-LF-CC冶炼与低C-Mn-Nb-Ti微合金体系,依托Q355B搭桥模式开展工业试制。结果表明:9.75 mm规格性能满足要求,7.75 mm规格头部与45°方向存在性能波动。受设备条件限制,产品晶粒较粗、强度偏低、屈强比偏高。优化成分及工艺可提升薄规格稳定性,为CSP产线管线钢规模化生产提供技术支撑。

, authors=王建东1, 曹妍2, 刘政峰1, 张玮1, 张文凯1, 亢英利1, 赵志龙1, 常慧3, authorsList=王建东, 曹妍, 刘政峰, 张玮, 张文凯, 亢英利, 赵志龙, 常慧, authorCompany=null, correspAuthors=null, authorNote=

王建东(1984-),男,内蒙古鄂尔多斯市人,工程师,现从事热轧部轧机区域技术管理工作。

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王建东(1984-),男,内蒙古鄂尔多斯市人,工程师,现从事热轧部轧机区域技术管理工作。

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王建东(1984-),男,内蒙古鄂尔多斯市人,工程师,现从事热轧部轧机区域技术管理工作。

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CSP产线管线钢L415M的组织性能研究
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王建东 1 , 曹妍 2 , 刘政峰 1 , 张玮 1 , 张文凯 1 , 亢英利 1 , 赵志龙 1 , 常慧 3
稀土钢 | 品种质量与试验研究 2026,52(3): 45-51
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稀土钢 |品种质量与试验研究 2026 , 52 (3) : 45 -51
CSP产线管线钢L415M的组织性能研究
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王建东(1984-),男,内蒙古鄂尔多斯市人,工程师,现从事热轧部轧机区域技术管理工作。

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王建东(1984-),男,内蒙古鄂尔多斯市人,工程师,现从事热轧部轧机区域技术管理工作。

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王建东1, 曹妍2, 刘政峰1, 张玮1, 张文凯1, 亢英利1, 赵志龙1, 常慧3
作者信息
  • 1.内蒙古包钢钢联股份有限公司薄板坯连铸连轧厂,内蒙古 包头 014010
  • 2.内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
  • 3.内蒙古包钢钢联股份有限公司稀土钢冷轧板材厂,内蒙古 包头 014010
作者简介:

王建东(1984-),男,内蒙古鄂尔多斯市人,工程师,现从事热轧部轧机区域技术管理工作。

Study on Microstructure and Properties of Pipeline Steel L415M Produced with CSP Production Line
Jiandong Wang1, Yan Cao2, Zhengfeng Liu1, Wei Zhang1, Wenkai Zhang1, Yingli Kang1, Zhilong Zhao1, Hui Chang3
Affiliations
  • 1.CSP Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 3.Cold Rolled Rare Earth Steel Plate Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
出版时间: 2026-06-05
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为拓展CSP产线品种结构,突破紧凑式带钢流程生产微合金管线钢的技术瓶颈,文章以L415M为对象,采用KR-BOF-LF-CC冶炼与低C-Mn-Nb-Ti微合金体系,依托Q355B搭桥模式开展工业试制。结果表明:9.75 mm规格性能满足要求,7.75 mm规格头部与45°方向存在性能波动。受设备条件限制,产品晶粒较粗、强度偏低、屈强比偏高。优化成分及工艺可提升薄规格稳定性,为CSP产线管线钢规模化生产提供技术支撑。

CSP  /  L415M  /  显微组织  /  力学性能

In order to expand the product type mix of CSP production line and break the technical bottleneck of producing microalloyed pipeline steel with compact process of strip steel, the industrial trial production is carried out based on Q355B bridge mode with smelting of KR (kambara reactor)-BOF (basic oxygen furnace)-LF (ladle furnace)-CC (continuous casting) and low C-Mn-Nb-Ti microalloying system by taking the pipeline steel L415M as the object in this paper. The results showed that the performances of sample with the specification of 9.75 mm could meet the requirements as well as there was performance fluctuation at head and in the direction of 45° for sample with the specification of 7.75 mm. Due to the limit of equipment conditions, the grain is coarser, strength is lower and yield ratio is higher for the product. The stability of product with thin specification could be improved by optimizing the composition and process, which could provide the technical support for large scale production of pipeline steel with the CSP production line.

CSP  /  L415M  /  microstructure  /  mechanical properties
王建东, 曹妍, 刘政峰, 张玮, 张文凯, 亢英利, 赵志龙, 常慧. CSP产线管线钢L415M的组织性能研究. 稀土钢, 2026 , 52 (3) : 45 -51 .
Jiandong Wang, Yan Cao, Zhengfeng Liu, Wei Zhang, Wenkai Zhang, Yingli Kang, Zhilong Zhao, Hui Chang. Study on Microstructure and Properties of Pipeline Steel L415M Produced with CSP Production Line[J]. Rare Earth Steel, 2026 , 52 (3) : 45 -51 .

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  • 接收时间:2026-01-08
  • 首发时间:2026-08-13
  • 出版时间:2026-06-05
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  • 收稿日期:2026-01-08
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    1.内蒙古包钢钢联股份有限公司薄板坯连铸连轧厂,内蒙古 包头 014010
    2.内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
    3.内蒙古包钢钢联股份有限公司稀土钢冷轧板材厂,内蒙古 包头 014010
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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