[1]宫少涛,王爱民,吉玲康,等.X80与X100级管线钢屈服强度Rt 0.5与Rp 0.2的差异性研究[J].焊管,2007,30(5):42-44.[doi:1001-3938(2007)05-0042-03]
 GONG Shao-tao,WANG Ai-min,JI Ling-kang,et al.Study on Difference Between Yield Strength Rt 0.5 and Rp 0.2 for X80 and X100 Pipelines Steel[J].,2007,30(5):42-44.[doi:1001-3938(2007)05-0042-03]
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X80与X100级管线钢屈服强度Rt 0.5与Rp 0.2的差异性研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
30
期数:
2007年第5期
页码:
42-44
栏目:
试验与研究
出版日期:
2007-09-28

文章信息/Info

Title:
Study on Difference Between Yield Strength Rt 0.5 and Rp 0.2 for X80 and X100 Pipelines Steel
文章编号:
1001-3938(2007)05-0042-03
作者:
宫少涛1王爱民2吉玲康1张? 奕1
(1.中国石油管材研究所 石油管力学和环境行为重点实验室;2.青海油田管道输油处)
Author(s):
GONG Shao-taoWANG Ai-minJI Ling-kangZHANG Yi
关键词:
高钢级管线钢直缝埋弧焊管屈服强度拉伸试验
Keywords:
igh gradepipeline steelLSAWyield strengthtensile test
分类号:
TG113.25
DOI:
1001-3938(2007)05-0042-03
文献标志码:
A
摘要:
对钢级为X80和X100的两种管线钢的拉伸性能进行了试验研究分析,结果显示X80级管线钢纵向和横向屈服强度的Rt0.5与Rp0.2的值重合,而X100级管线钢的Rp0.2对应的总应变比0.5%要高。通过对应力-应变曲线分析可知,这是因为X100级管线钢拉伸曲线弹性阶段的延伸,使曲线的屈服部分和其后的均匀延伸部分上升造成的。因此,在进行级别高于X80的管线钢拉伸试验时,建议使用Rp0.2 的值作为材料的屈服强度,或使用与Rpp0.2相对应的总应变强度作为屈服强度。
Abstract:
This present paper discussed the tension properties of X80 and X100 pipeline steel.In case of X80 grade,stress at 0.5% total strain and 0.2% offset strain agrees each other.For X100, higher total strain must be employed to measure the same stress as 0.2% offset strain.Having researched strain-stress curve,flexibility stage is extension that cause the difference of stress at 0.5% total strain and 0.2% offset strain for X100 pipeline steel.In terms of yield strength of pipes,it is proposed that yield strength should adopt 0.2% offset strain or the total strain corresponding value of to 0.2% offset strain.

参考文献/References:

[1]辛希贤,姚婷珍,张刊林,等.高屈强比管线钢的安全性分析[J].焊管,2006(4):36-39.
[2]API SPEC 5L,Specification for Line Pipe.43th Edition[S].
[3]ISO/DIS 3183,Petroleum and Natural Gas Industriessteel Pipe for Pipeline Transportation Systems[S].
[4]Z245.1—02,Steel Pipe[S].

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备注/Memo

备注/Memo:
宫少涛(1980-),男,2003年毕业于吉林大学,主要从事石油和天然气输送管材料及焊接研究。
收稿日期:2007-04-28
更新日期/Last Update: