B31.8 PIPE THICKNESS
B31.8 PIPE THICKNESS
(OP)
HI
In B31.3 C.A. and Mill tolerance are applied for calculating pipe thickness but in B31.8, I have not seen these parameters in calculating pipe thickness(suppose the pipe material is API 5L). Shall we use C.A and Mill tolerance for pipe thickness calculation for a gas pipelines? If yes, why B31.8 doesn't mention them?
In B31.3 C.A. and Mill tolerance are applied for calculating pipe thickness but in B31.8, I have not seen these parameters in calculating pipe thickness(suppose the pipe material is API 5L). Shall we use C.A and Mill tolerance for pipe thickness calculation for a gas pipelines? If yes, why B31.8 doesn't mention them?





RE: B31.8 PIPE THICKNESS
Mill tolerance for pipe made and certified according to one of the secifications listed by B31.8 is already included within the safety factor associated with the DF required for the respective area classes. That is stated within the code. Specific corrosion allowances are not required by the code, however if you have knowledge or reasonable suspicion that corrosion, or any other agent or effect not specifically covered or included in the code by name, that could have some reasonably possible detrimental effect to the design resulting from following the B31.8 code, you have an additional responsibility to make the design just and adequate to accommodate those effects as well.
Independent events are seldomly independent.
RE: B31.8 PIPE THICKNESS
RE: B31.8 PIPE THICKNESS
Independent events are seldomly independent.