Selection of pipe wall thickness per GBT17395
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I have a question for fellow users: For example, in the case of carbon steel pipes with DN300, when using the GBT17395 series I standard to determine the wall thickness, is the starting value 7.5 mm? If the wall thickness is 7.0 mm, is the theoretical weight listed as blank, meaning it cannot be selected? We used HGT20553 in the past; I didn’t expect GBT17395 to have such problems. What do you all think about this?
I work in the field of piping equipment. The calculation for the pipe wall thickness that I use is based on two formulas: ① Maximum pressure resistance = 105*2*wall thickness, and ② Maximum pressure resistance = design pressure*1.5 (where 1.5 is derived from the ratio used in valve strength tests). Two formulas. Therefore, you can use the formula to calculate the pipe wall thickness; when designing it, you certainly know the operating pressure or design pressure under which the pipe will be used. . . I hope this helps!
Willing to help others; more people are welcome to participate in discussions on the forum