Abstract

SE(B) testing was conducted at room temperature on an X70 pipe material. Two toughness methods – ASTM E1820 and the double-clip gauge method – were combined in a single specimen to experimentally compare the J-conversion CTOD of ASTM E1820 with the geometrically-estimated CTOD under identical conditions. The results show that the difference in definition of CTOD strongly influences CTOD estimations. The paper discusses details of the experiment and the results.

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