[en] The Collection of Abstracts of the sixth international conference On material issues in design, manufacturing and operation of nuclear power plants equipment are presented. The main attention is paid to the issue of structural integrity with an emphasis on the irradiation of WWER reactor pressure vessels. The questions concerning materials development and their production, properties study, structure integrity assessment of WWER reactor pressure vessels, lifetime of austenitic pipelines and equipment during operation and also manufacture of containers for transportation and prolonged storage of spent fuel are discussed