Effect of reducing wall thickness and increasing SMYS
Effect of reducing wall thickness and increasing SMYS
(OP)
Can an increase in the SMYS of a pipe account for a reduction in wall thickness
E,g Substituting API 5L X65 WT 38.1mm for API 5L X60 WT 39mm
E,g Substituting API 5L X65 WT 38.1mm for API 5L X60 WT 39mm





RE: Effect of reducing wall thickness and increasing SMYS
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Effect of reducing wall thickness and increasing SMYS
It appears that B31.3 is your design Code since you have only lowered T by .9 mm and the design allowable is only increased by < 3%. You'd get over 9% increase in the design allowable for X70. Wheras the majority of X65 meets X70 requirements, substituting X70 for X60 would seem a mrre economical approach.
RE: Effect of reducing wall thickness and increasing SMYS
RE: Effect of reducing wall thickness and increasing SMYS
I've just answered your question as best I can.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Effect of reducing wall thickness and increasing SMYS