焊管2011，Vol.34Issue(10)：24-26,3.
高钢级大壁厚管线钢管母材屈服强度测量方法探讨
Discussion on the Measurement Methods of Pipe Body Yield Strength for High Grade and Heavy Wall Thickness Line Pipe
李云龙 1吴金辉 2李记科 1张鸿博 2王长安 1杨专钊2
作者信息
- 1. 中国石油集团石油管工程技术研究院,西安710065
- 2. 北京隆盛泰科石油管科技有限公司,北京100101
- 折叠
摘要
Abstract
A method that measures yield strength value by tensile strength of the material as the benchmark value was discussed in this paper. Two values determined by the certain proportions of tensile strength were taken on the stress-strain curve, and then a straight line was fitted by the two values on the curve, selecting the coordinate origin which was intersected by the fitted line and abscissa line, then calculating Rt0.5 and Rp0.2 by the new coordinate origin. By the method, inaccurate of yield strength test results which are caused by test equipment and specimen's accuracy were resolved, and the research provides a theoretical basis for eliminating the influence of external factors on the yield strength test results.关键词
屈服强度/抗拉强度/测量方法Key words
yield strength/tensile strength/measurement methods分类
矿业与冶金引用本文复制引用
李云龙,吴金辉,李记科,张鸿博,王长安,杨专钊..高钢级大壁厚管线钢管母材屈服强度测量方法探讨[J].焊管,2011,34(10):24-26,3.
