juancito
Mechanical
- Nov 30, 2000
- 64
Dear collegues,
As there are no ASME pipes of this diameter presently available in our market is that we intend to fabricate a 24" OD vessel with the only pipe you can get, that is API 5L Gr B.
As this latter is not an ASME material I would assimilate it as SA53 Gr.B based on the following considerations:
a)I assume it is a "Material not fully Identified" acc. to UG-10(C)(2), and do mechanical and chemical testing which if I´m not wrong, would match with SA53GrB (W)
b)The provisions of UG-10(b)(2) (c)(d)(e) are fulfilled
c)Acc. to UG-4(b), for materials which do not identify acc. to UG-93 their allowable stresses should be penalized by 0.87. Should this statement also be considered?
If any of you had faced a similar problem, please let me know your experience and/or comments
Thanks in advance
As there are no ASME pipes of this diameter presently available in our market is that we intend to fabricate a 24" OD vessel with the only pipe you can get, that is API 5L Gr B.
As this latter is not an ASME material I would assimilate it as SA53 Gr.B based on the following considerations:
a)I assume it is a "Material not fully Identified" acc. to UG-10(C)(2), and do mechanical and chemical testing which if I´m not wrong, would match with SA53GrB (W)
b)The provisions of UG-10(b)(2) (c)(d)(e) are fulfilled
c)Acc. to UG-4(b), for materials which do not identify acc. to UG-93 their allowable stresses should be penalized by 0.87. Should this statement also be considered?
If any of you had faced a similar problem, please let me know your experience and/or comments
Thanks in advance