Meaning of pipeline grades in polyethylene plants
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I’m seeking help from fellow sailors: what do the pipe grades 5CP54 and 2CP42 in polyethylene plants mean? Can it be determined whether post-weld heat treatment is required? Thank you!
This requires checking the material grade description. It’s hard to tell literally.
This post was last edited by flute6 on 2018-3-21 09:58. It is not apparent that post-weld heat treatment has anti-corrosion requirements; post-weld heat treatment is also necessary to prevent hydrogen embrittlement and sulfur embrittlement.
It’s impossible to tell; even with different grade, diameter, and wall thickness, there are differences