Selection of welding materials for automatic welding of Q235B and 00Cr17Ni14Mo2?
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When welding Q235B to 00Cr17Ni14Mo2 (316L), submerged arc automatic welding is planned to be used – what type of wire and flux should be used?
E309Mo-16 is very common; use this grade when placing orders with suppliers – go ahead and buy it
Theoretically, the wire for submerged arc automatic welding is H1Cr24Ni13, and the flux is HJ260; however, I’m not sure how you conduct your evaluations.
Generally, it is ER309Mo+HJ260, but it is best to consult the welding material supplier, as they usually have fixed combinations of welding wires and fluxes; in addition, a corresponding welding qualification report is required.