Abstract
"Rules on Fitness-for-Service for Nuclear Power Plants" is published by The Japan Society of Mechanical Engineers. It provides flaw evaluation methods to assess the effect of detected flaws on the structural integrity. To realize reliable flaw evaluation, the arrangement of mechanical property database is essential as well as the improvement of the flaw evaluation methods. In this paper, tensile properties of typical Class 1 fenitic piping materials were systematically formulated. The effect of temperature on fracture strength was then examined.
