Article(id=1312012726457696503, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1312012710787769114, 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=1754496000000, receivedDateStr=2025-08-07, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790737810004, onlineDateStr=2026-09-30, pubDate=1766592000000, pubDateStr=2025-12-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790737810004, onlineIssueDateStr=2026-09-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790737810004, creator=13701087609, updateTime=1790737810004, updator=13701087609, issue=Issue{id=1312012710787769114, tenantId=1146029695717560320, journalId=1185652524569653253, year='2025', volume='51', issue='6', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='1766592000000', pubDateStr='2025-12-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790737806269, creator='13701087609', updateTime=1790737917382, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1312013176892387678, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1312012710787769114, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1312013176892387679, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1312012710787769114, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=34, endPage=39, ext={EN=ArticleExt(id=1312012726675800312, articleId=1312012726457696503, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Development and Trial Production of Cold Rolled Bake Hardening Steel HC220B for Automobile, columnId=1187095652984042303, journalTitle=Science & Technology of Baotou Steel, columnName=Variety Quality and Experimental Study, runingTitle=null, highlight=null, articleAbstract=

The bake hardening steel is with good deep drawing properties and dent resistance, so it is usually used for stamping exterior covering parts of automobile. The cold rolled ultra-low carbon bake hardening steel HC220B is successfully developed by adding a small quantity of Ti into ultra-low carbon steel based on customer requirements as well as with the production mode of continuous annealing based on existing production equipment of such production lines as steel making, hot rolling and cold rolling in Rare Earth Steel Plate Co. of Baotou Steel. The mechanical properties of steel strip could meet the standard requirements so that the yield strength is 220~270 MPa, tensile strength is 320~400 MPa, percentage elongation after fracture≥32.0%, n -value≥0.16, r -value≥1.5, BH2 value≥30 MPa, metallographic structure is equiaxed ferrite and grain size is grade 8.5 for finished product. When the content of solid solution free carbon in steel is within the range of 3~21 ppm, cold rolled bake hardening steel HC220B is with suitable bake hardening values. The mechanical properties of steel strip could still meet the standard requirements after it is stored at room temperature for over 3 months, so it is with good aging. When the content of free carbon reaches 58 ppm, steel strip ages rapidly and its yield strength is increased by approximately 40 MPa after it is stored at room temperature for 1 month, which is unfavorable to stable use of customers.

, authors=Meng Qi, Xiaoming Yuan, Yan Liu, Sheng Chen, Guolei Liu, authorsList=Meng Qi, Xiaoming Yuan, Yan Liu, Sheng Chen, Guolei Liu, 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=1312012726948430073, articleId=1312012726457696503, tenantId=1146029695717560320, journalId=1185652524569653253, language=CN, title=汽车用冷轧烘烤硬化钢HC220B的开发与试制, columnId=1274058239982474085, journalTitle=包钢科技, columnName=品种质量与试验研, runingTitle=null, highlight=null, articleAbstract=

烘烤硬化钢兼具良好的深冲性能和抗凹陷性,多用于冲压汽车外覆盖件。包钢稀土钢板材公司以现有炼钢、热轧、冷轧产线生产设备为基础,采用连续退火生产方式,根据客户需求,在超低碳钢中添加少量Ti元素,成功开发了冷轧超低碳烘烤硬化钢HC220B。钢带各项力学性能均满足标准要求,实现成品屈服强度220~270 MPa,抗拉强度320~400 MPa,断后伸长率≥32.0%,n值≥0.16,r值≥1.5,BH2值≥30 MPa,金相组织为等轴铁素体,晶粒度8.5级。当钢中固溶自由碳含量在3~21 ppm范围内时,冷轧烘烤硬化钢HC220B具有适宜的烘烤硬化值。常温下放置时间超3个月,钢带力学性能仍满足标准要求,产品具有良好的时效期。当自由碳含量达到58 ppm时,钢带时效速度快,常温下放置1个月,钢带屈服强度提高约40 MPa,不利于客户稳定使用。

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齐蒙(1987-),女,内蒙古包头市人,硕士,高级工程师,现从事产品开发等工作。

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齐蒙(1987-),女,内蒙古包头市人,硕士,高级工程师,现从事产品开发等工作。

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齐蒙(1987-),女,内蒙古包头市人,硕士,高级工程师,现从事产品开发等工作。

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汽车用冷轧烘烤硬化钢HC220B的开发与试制
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齐蒙 , 袁晓鸣 , 刘妍 , 陈胜 , 刘国磊
包钢科技 | 品种质量与试验研 2025,51(6): 34-39
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包钢科技 |品种质量与试验研 2025 , 51 (6) : 34 -39
汽车用冷轧烘烤硬化钢HC220B的开发与试制
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齐蒙, 袁晓鸣, 刘妍, 陈胜, 刘国磊
作者信息
  • 内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
作者简介:

齐蒙(1987-),女,内蒙古包头市人,硕士,高级工程师,现从事产品开发等工作。

Development and Trial Production of Cold Rolled Bake Hardening Steel HC220B for Automobile
Meng Qi, Xiaoming Yuan, Yan Liu, Sheng Chen, Guolei Liu
Affiliations
  • Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
出版时间: 2025-12-25
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烘烤硬化钢兼具良好的深冲性能和抗凹陷性,多用于冲压汽车外覆盖件。包钢稀土钢板材公司以现有炼钢、热轧、冷轧产线生产设备为基础,采用连续退火生产方式,根据客户需求,在超低碳钢中添加少量Ti元素,成功开发了冷轧超低碳烘烤硬化钢HC220B。钢带各项力学性能均满足标准要求,实现成品屈服强度220~270 MPa,抗拉强度320~400 MPa,断后伸长率≥32.0%,n值≥0.16,r值≥1.5,BH2值≥30 MPa,金相组织为等轴铁素体,晶粒度8.5级。当钢中固溶自由碳含量在3~21 ppm范围内时,冷轧烘烤硬化钢HC220B具有适宜的烘烤硬化值。常温下放置时间超3个月,钢带力学性能仍满足标准要求,产品具有良好的时效期。当自由碳含量达到58 ppm时,钢带时效速度快,常温下放置1个月,钢带屈服强度提高约40 MPa,不利于客户稳定使用。

烘烤硬化钢  /  HC220B  /  超低碳  /  连续退火

The bake hardening steel is with good deep drawing properties and dent resistance, so it is usually used for stamping exterior covering parts of automobile. The cold rolled ultra-low carbon bake hardening steel HC220B is successfully developed by adding a small quantity of Ti into ultra-low carbon steel based on customer requirements as well as with the production mode of continuous annealing based on existing production equipment of such production lines as steel making, hot rolling and cold rolling in Rare Earth Steel Plate Co. of Baotou Steel. The mechanical properties of steel strip could meet the standard requirements so that the yield strength is 220~270 MPa, tensile strength is 320~400 MPa, percentage elongation after fracture≥32.0%, n -value≥0.16, r -value≥1.5, BH2 value≥30 MPa, metallographic structure is equiaxed ferrite and grain size is grade 8.5 for finished product. When the content of solid solution free carbon in steel is within the range of 3~21 ppm, cold rolled bake hardening steel HC220B is with suitable bake hardening values. The mechanical properties of steel strip could still meet the standard requirements after it is stored at room temperature for over 3 months, so it is with good aging. When the content of free carbon reaches 58 ppm, steel strip ages rapidly and its yield strength is increased by approximately 40 MPa after it is stored at room temperature for 1 month, which is unfavorable to stable use of customers.

bake hardening steel  /  HC220B  /  ultra-low carbon  /  continuous annealing
齐蒙, 袁晓鸣, 刘妍, 陈胜, 刘国磊. 汽车用冷轧烘烤硬化钢HC220B的开发与试制. 包钢科技, 2025 , 51 (6) : 34 -39 .
Meng Qi, Xiaoming Yuan, Yan Liu, Sheng Chen, Guolei Liu. Development and Trial Production of Cold Rolled Bake Hardening Steel HC220B for Automobile[J]. Science & Technology of Baotou Steel, 2025 , 51 (6) : 34 -39 .

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  • 接收时间:2025-08-07
  • 首发时间:2026-09-30
  • 出版时间:2025-12-25
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  • 收稿日期:2025-08-07
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    内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010
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2种不同金属材料的力学参数
科
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属数
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genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
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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