Seeking standards for wall thickness tolerances of American standard steel pipes
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Seeking the standard for wall thickness tolerances of American standard steel pipes, or a relevant standard table
Isn’t it ASME B36.10M/B36.19M?
I found a deviation of 12.5 on B31.3
Wrong; pipes with different standards have varying deviations. For example, a312 is 12.5%, while a358 is only 0.3mm
That’s fine too; as long as the problem is solved.
Why is the wall thickness requirement so high, and what is the manufacturing standard for A358?
The national standard is also 12.5, but with corrections; there is a maximum wall thickness tolerance of 12.5, and the smaller value should be chosen
A358 is the standard for stainless steel welded pipes, with requirements that are higher than those for 312