Manufacturing technical requirements for A335P91
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The quality requirements for the manufacturing technology of A335P91 include not only compliance with ASME/ASTM standards, such as heat treatment at NT (1040–1080), tensile yield strength, and non-destructive testing, but also adherence to the requirements specified in Power Piping standards. So, what are the performance requirements for pipes as per Power Piping standards? Impact, grain size. . . .
This is a steel pipe manufactured to the SA335 P91 standard. . Let’s go by this standard then. At most, your procurement requirements have additional items. . Ignore the power pipeline specifications. . As for the regulations on power pipelines, there are no separate rules specific to P91. . Rather, it is about how to weld when using this type of material. It’s aimed at these power pipes. . As for the impact requirement, it seems this requirement is not present. .
Everyone on the first floor answered everything I was about to say first: lol