Reactor Pressure Vessel Steels ASTM A533B and A508 Cl.2. Charpy V Impact and Drop-Weight Test Results

摘要

This report presents the impact and drop-weight test results of reactor pressure vessel steels ASTM A533B and A508 Cl.2 conducted at the Technical Research Centre of Finland. The ductility of the steels was studied after varying austenitizing and tempering temperatures. A high austenitizing temperature caused a clear rise of the transition temperature in the case of the steel A508 Cl.2, but had only a small effect on the steel A533B. The preferable tempering range of the A533B steel turned out to be larger and at lower temperatures than that of the steel A508 Cl.2. (Atomindex citation 11:496485)