API 5L GR. B Pipe classified as not acceptable on the b311 code
API 5L GR. B Pipe classified as not acceptable on the b311 code
(OP)
Appendix A, Table A-1 of the ASME B311, General Notes (1) says that "This material (API 5L Gr. B) is not acceptable for use on boiler external piping. General Notes (13) also states "this material is not listed in the ASME Boiler and Pressure Vessel Code, Section IX."
Having specified our pipes to be API 5L Gr. B and the Code being B311, is there a conflict with our specifications? Our large diameter pipes are specified as SAW/ERW API 5L Grade B.
ANSI B311 lists P-numbers. Does P-numbers mean welding procedures only? with API 5L Gr. B is under P-1, it still is indicated as not listed under the ASME IX.
thank you again.
Having specified our pipes to be API 5L Gr. B and the Code being B311, is there a conflict with our specifications? Our large diameter pipes are specified as SAW/ERW API 5L Grade B.
ANSI B311 lists P-numbers. Does P-numbers mean welding procedures only? with API 5L Gr. B is under P-1, it still is indicated as not listed under the ASME IX.
thank you again.





RE: API 5L GR. B Pipe classified as not acceptable on the b311 code
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RE: API 5L GR. B Pipe classified as not acceptable on the b311 code
API 5L, Grade B is a B31.1 listed material. While this material is excluded from BEP, it is acceptable for other applications (in other pipin) in power plants. Regardless of the material's "P" number, specifying API 5L, Grade B pipe for use in Boiler External Piping would not be compliant with the ASME B31.1 Code for Power Piping.
Regards, John
RE: API 5L GR. B Pipe classified as not acceptable on the b311 code
RE: API 5L GR. B Pipe classified as not acceptable on the b311 code
RE: API 5L GR. B Pipe classified as not acceptable on the b311 code
RE: API 5L GR. B Pipe classified as not acceptable on the b311 code