ASME B31.3 CHPT IX API 5L X60
ASME B31.3 CHPT IX API 5L X60
(OP)
Hi all,
Hopefully someone can assist me here.
I've got an application where API 5L X60 material has been preliminarly chosen for a high pressure (500Barg) piping system in a B31.3 CHPT IX design code. As the design temperature is up to 90°C, allowable stress needs to be determine at this design temperature for pipe WT cals from OD 2" to OD 6" (pipe will be SMLS). At ambient table K1 states 40ksi, thus to determine bases for allowable ratio Ry is stated in K302.3.2. How is this Ry ratio applied to determine allowable stress at 90°C?
I know ASME II part D doesn't include API 5L grades.
Thanks.
Hopefully someone can assist me here.
I've got an application where API 5L X60 material has been preliminarly chosen for a high pressure (500Barg) piping system in a B31.3 CHPT IX design code. As the design temperature is up to 90°C, allowable stress needs to be determine at this design temperature for pipe WT cals from OD 2" to OD 6" (pipe will be SMLS). At ambient table K1 states 40ksi, thus to determine bases for allowable ratio Ry is stated in K302.3.2. How is this Ry ratio applied to determine allowable stress at 90°C?
I know ASME II part D doesn't include API 5L grades.
Thanks.





RE: ASME B31.3 CHPT IX API 5L X60
RE: ASME B31.3 CHPT IX API 5L X60
RE: ASME B31.3 CHPT IX API 5L X60
RE: ASME B31.3 CHPT IX API 5L X60
Note 21 refers back to K323.2.1 (b) to K323.2.4 (a) and (b). Reviewing K323.2.4 (b) takes me to K302.3.2, thus the R(y) ratio. Any guidance for this R(y) ratio in this instance?
Thanks Stanweld, but WTs are lower using table A1 in comparison to table K1 for X60.
RE: ASME B31.3 CHPT IX API 5L X60