Hi sp34 (Mechanical)
Carbon Steel Smls: A106-B, and DSAW API 5L-B PSL-2 A105: Flange rating Table, psi per ANSI B16.5 Minimun temperature higher than -20 deg F.
Killed Carbon Steel: SMLS A106-b, SMLS A333-6, EFW A671-CC60 Clas 12, EFW A671-CC60 Clas12,S-2, Flange rating Table, psi per ANSI B16.5, (Impact testing required for design temperture to -20 deg F)