ASME B31.3 Limitations on Flanged Joints
Flanges are discussed in previous post (ASME B31.3 Limitations on Flanges). Additional requirements for flanged joints are provided in para. 312 of ASME B31.3. These discuss conditions where flanges with different strengths are bolted together. This can involve two flanges of the same or different materials or with different ratings, or a nonmctallic and metallic flange bolted together. In both cases, precautions are required to avoid overloading the weaker flange. In additio