![]() This report presents the tensile test results of steels ASTM A 533B and A508 Cl.2 obtained in connection with a programme initiated to gather and create information needed for the assessment of the structural integrity of the reactor pressure vessels. ![]() Reactor pressure vessel steels ASTM A 533B and A508 Cl.2 The maximum load fracture toughness was found to be linearly proportional to specimen size, and only specimens which failed to meet ASTM size criteria exhibited maximum load toughness less than J/sub Ic/ The toughness of ASTM A 533, Grade B, Class 1 steel was 349 kJ/m 2 and at the equivalent upper shelf temperature, the heat treated material exhibited 87 kJ/m 2. The toughness at maximum specimen load was also measured to determine the conservatism of J/sub Ic/. The ductile fracture toughness, J/sub Ic/, of ASTM A 533, Grade B, Class 1 and ASTM A 533, heat treated to simulate irradiation, was determined for 10- to 100-mm thick compact specimens. International Nuclear Information System (INIS) A specimen-size study of ASTM A 533 steels ![]() ![]() Ductile fracture toughness of heavy section pressure vessel steel plate. ![]()
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