Maximum bending of a cold formed bend - Pipelines, Piping ...
The B31 series of codes cover cold forming bends. for example B31.1 clause 129.1. 129.1 Bending. Pipe may be bent by any hot or cold method and to any. radius that will result in a bend surface free of cracks. Such. bends shall meet the design requirements of para. 102.4.5. with regard to minimum wall thickness.
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