Fittings for ASME I and/or ASME B31.1

[Secho]

We have to adapt our standard BEP from a steam generator according ASME B31.1 because we need to obtain the "S" stamp in the future. We use some "standard" threaded fittings that is easy to change them to an standdard ASME B16.11 fittings (in this moments they are from different suppliers and different "norms"...) but others like male stud elbow I can not recognize a specificaton or standard in Table 126.1-1 from ASME B31.1 (I need it in stainless steel), for instance, just an image:


Do you know wich Specification is covering this kinkd of fittings? Thanks in advance.

 

[IdanPV]

See
B31.1 Para. 114, 115, 104.7

 

[Secho]

Thanks for your anwer. So, if I understand well and after reading the para. 114, 115, 104.7 I can use the fittings we are using now (preferred if at least the material is a specification listed in Table 126.1-1); is calculation necessary if ratings pressure-temperatura are ok and material specification is acc. Table 126.1-1?