CUI QingFeng, HUI Hu, WANG HaoYang, et al. STUDY ON TOUGHNESS OF DOMESTIC PRESSURE VESSEL STEEL Q345R AT LOW TEMPERATURE. [J]. 38(6):1198-1204(2016)
DOI:
CUI QingFeng, HUI Hu, WANG HaoYang, et al. STUDY ON TOUGHNESS OF DOMESTIC PRESSURE VESSEL STEEL Q345R AT LOW TEMPERATURE. [J]. 38(6):1198-1204(2016) DOI: 10.16579/j.issn.1001.9669.2016.06.011.
STUDY ON TOUGHNESS OF DOMESTIC PRESSURE VESSEL STEEL Q345R AT LOW TEMPERATURE
In the present paper,the relevant provision in the ASME Code Case about"Applicability of the ASME exemption curve for Chinese pressure vessel steel Q345R"has been analyzed by using failure assessment procedure on the basis of true material testing data. For the normalized Q345 R investigated in this paper,the results indicated that both Charpy impact toughness and fracture toughness at low temperature are better than the requirements in ASME Code,the provision in ASME Code classifying Q345 R in Exemption curve A excessively underestimated the toughness of the material.
关键词
豁免曲线失效评定最低设计金属温度(MDMT)Q345R
Keywords
Exemption CurvesFailure AssessmentMinimum Design Metal TemperatureQ345R