WELDED JOINT Russian patent published in 2018 - IPC B23K35/30 C22C30/00 C22C38/58 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of metallurgy, namely, to a welded joint. Welded joint obtained by welding in several passes of the base material using a welding material, characterized in that the welding material has a chemical composition, in wt%: C is from 0.01 to 0.15, Si is up to 4.0, Mn is from 0.01 to 3.5, P is up to 0.03, S is up to 0.015, Cr is from 15.0 to 35.0, Ni is from 40.0 to 70.0, Cu is from 0.01 to 4.0, N is from 0.005 to 0.1, O is up to 0.03, iron and impurities – the rest, and a base material having a chemical composition in wt%: C is from 0.03 to 0.075, Si is from 0.6 to 2.0, Mn is from 0.05 to 2.5, P is up to 0.04, S is up to 0.015, Cr is greater than 16.0 and less than 23.0, Ni is from 20.0 to less than 30.0, Cu is from 0.5 to 10.0, Mo is not more than 1, Al is up to 0.15, N is from 0.005 to 0.20, O is up to 0.02, iron and impurities – the rest. Metal of the first weld layer obtained from the first welding pass has a chemical composition comprising, in mass%, iron is from 10 to 40.

EFFECT: welded joint has a high resistance to metallic dust formation.

21 cl, 1 dwg, 3 tbl