Welding S355J2C+N steel to API 2H Grade 50.
My question is, for the purposes of prequalified base metal filler metal combinations for matching strength (table 3.1, D1.1), what is the ASTM equivalent and which D1.1 Group number does the S355 material fall under? API 2H G50 is a group II (p. 66 D1.1-2010).
The closest information I could find indicates that the S355 may be an ASTM A572 material, but I have found nothing definitive.
Your assistance would be appreciated.