ASME B31.8-2022 Ed. Par. 812, (2nd Par.), indicates that a fracture control program shall be established for minimum design temperatures below -20°F and the program shall address circumferential butt welds and HAZs among other welds and materials. The next paragraph in Par. 812 indicates to see Par. 841.1.2 for additional requirements relative to fracture control of pipe. This paragraph provides additional requirements based on stress for different sizes of pipe (Par. 841.1.2(a)(1) & (2)). Therefore, if either (a)(1) or (a)(2) applies, then the pipe needs to meet the requirements of (b) and (c) or (d) of this paragraph, even if the minimum design temperature is above -20°F. Will the CVN requirements specified in (b) apply to the circumferential butt welds and HAZs, even if the minimum design temperature is above -20°F, and the pipeline is designed to meet either (a)(1) or (a)(2)?
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