Article(id=1198267808476917904, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198267803028521972, articleNumber=1009-5438(2023)01-0070-03, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1671033600000, receivedDateStr=2022-12-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763618908279, onlineDateStr=2025-11-20, pubDate=1677254400000, pubDateStr=2023-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763618908279, onlineIssueDateStr=2025-11-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763618908279, creator=13701087609, updateTime=1763618908279, updator=13701087609, issue=Issue{id=1198267803028521972, tenantId=1146029695717560320, journalId=1185652524569653253, year='2023', volume='49', issue='1', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763618906981, creator=13701087609, updateTime=1763619307448, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1198269482767581847, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198267803028521972, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1198269482771776152, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198267803028521972, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=70, endPage=72, ext={EN=ArticleExt(id=1198267808795685010, articleId=1198267808476917904, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Exploration on Material Selection of Gas Pressure Piping in Iron Steel Industry in Severe Cold Area, columnId=1187100786392711543, journalTitle=Science & Technology of Baotou Steel, columnName=Equipment and Automation, runingTitle=null, highlight=null, articleAbstract=
In the paper, it is proposed how to select the pipeline material and some matters needing attention in low temperature environment condition by analyzing the lowest design operating temperature of gas pressure piping in the iron and steel industry. The gas pipe in the iron and steel industry is usually with large pipe diameter and low pressure, so it is not pressure piping. With the development of new technologies, some gas pipes with pressure higher than 0.1 MPa are pressure piping. The design of material should be based on the pressure piping code. In the severe cold area, when the lowest design operating temperature of pipe is lower than -20 ℃, the applicability of materials selected for pressure piping in low temperature conditions shall be considered.
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文章通过分析钢铁行业煤气压力管道设计最低使用温度,提出了在低温环境条件下管道材料如何选择和一些注意事项。钢铁行业煤气管道通常管径大、压力低,不属于压力管道。随着新工艺和新技术的发展,一些压力高于0.1 MPa的煤气管道就属于压力管道。在设计选材时,需要按照压力管道规范进行设计。在严寒地区,当管道设计最低使用温度低于-20 ℃时,要考虑低温条件下压力管道选用材料的适用性。
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郭军虎(1987-),男,陕西省咸阳市人,工程师,现从事燃气设计及管理工作。
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郭军虎(1987-),男,陕西省咸阳市人,工程师,现从事燃气设计及管理工作。
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郭军虎(1987-),男,陕西省咸阳市人,工程师,现从事燃气设计及管理工作。
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碳钢(碳锰钢)免除冲击试验的最低使用温度 注:1.材料最低使用温度/厚度组合位于相应曲线或以上者,可免除冲击试验,位于曲线以下者,应进行冲击试验(低温低应力工况、低温降应力工况及小截面除外)。
2.Q235B及Q235C等为A类材料,10#、20#、16Mn、16MnR为B类材料。
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| 序号 | 材质 | 需符合的标准
及规范 | 最低使用温度
/℃ |
| 1 | L245/B(PLS2) | GB/T 9711 | -30 |
| 2 | L290/B(PLS2)及以上 | GB/T 9711 | -30 |
| 3 | Q345E | GB/T 6479 | -40 |
| 4 | 10MnDG | GB/T 18984 | -46 |
| 5 | 16MnDG | GB/T 18984 | -46 |
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低温环境条件下推荐管道材料表
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| 序号 | 材质 | 需符合的标准
及规范 | 最低使用温度
/℃ |
| 1 | L245/B(PLS2) | GB/T 9711 | -30 |
| 2 | L290/B(PLS2)及以上 | GB/T 9711 | -30 |
| 3 | Q345E | GB/T 6479 | -40 |
| 4 | 10MnDG | GB/T 18984 | -46 |
| 5 | 16MnDG | GB/T 18984 | -46 |
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