X90高强管线钢的应变时效行为和敏感温度

杨军, 毕宗岳, 南黄河, 刘海璋

Investigation of Strain Aging Behavior and Sensitive Temperature of X90 High Strength Pipeline Steel

YANG Jun, BI Zongyue, NAN Huanghe, LIU Haizhang

表1 X90级管线钢的化学成分(质量分数，%)

Table 1 Chemical composition of X90 pipeline steel (mass fraction, %)

C Si Mn P S Ni Cr Cu Nb V Ti Mo Al B CEPcm Fe 0.05 0.26 1.95 0.007 0.0012 0.21 0.34 0.22 0.08 0.03 0.017 0.34 0.03 0.0004 0.21 Bal.