Fracture toughness data are presented for two ASTM A533 Grade B Class 1, 12-in-thick plate submerged arc process weldments. These data were generated in accordance with current ASTM recommended toughness testing procedures using compact tension specimens up to 8 in. thick. The toughness (KIc) properties show a strong temperature dependence resulting in rapidly increasing toughness with increasing temperature. Each of the weld deposit materials and also some limited heat-affected-zone data revealed toughness properties comparable or superior to ASTM A533 Grade B Class 1 plate material. Pertinent data relating to the weld parameters and composition, as well as the conventional tensile and Charpy V notch data are also given. For these weldment materials, the high toughness (KIc) properties found provide excellent reliability against brittle fracture in heavy section pressure vessel applications.
Fracture Toughness of ASTM A533 Grade B Class 1 Heavy Section Submerged Arc Weldments
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Shabbits, W. O., Pryle, W. H., and Wessel, E. T. (June 1, 1971). "Fracture Toughness of ASTM A533 Grade B Class 1 Heavy Section Submerged Arc Weldments." ASME. J. Basic Eng. June 1971; 93(2): 231–236. https://doi.org/10.1115/1.3425218
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