焊管2016，Vol.39Issue(9)：6-12,7.DOI:10.19291/j.cnki.1001-3938.2016.09.002
X80高强度管线钢拉伸试验伸长率变化规律研究
Study on Tensile Test Elongation Variation Law for X80 High Strength Pipeline Steel
摘要
Abstract
In view of the tensile test elongation conversion problems for high strength pipeline steel,several kinds of X80 pipeline steel materials were selected to conduct the study on the tensile test elongation variation law. The tests results showed that Oliver formula,which was established based on old carbon steel and low alloy steel material,is still applicable to X80 high strength pipeline steel but with different material coefficient. The tensile test elongation variation formula for X80 pipeline steel was established,the effect of the new material coefficient on the test result judgment was analyzed and revision suggestions for the standards were put forward. Reminded users pay attention to the problem, to avoid possible adverse consequences.关键词
X80/管线钢/伸长率/变化规律/Oliver公式Key words
X80/pipeline steel/elongation/variation law/Oliver formula分类
能源科技引用本文复制引用
许晓锋,秦长毅,李娜,蔺卫平,梁明华,李记科..X80高强度管线钢拉伸试验伸长率变化规律研究[J].焊管,2016,39(9):6-12,7.基金项目
国家质检公益性行业科研专项经费资助(项目号201510205-03). （项目号201510205-03）
