Attachment connection, and method of connecting a thin-walled hose line to a carbon-containing attachment part

Attachment connection (1) comprising a thin-walled hose line (2) abutting and welded to a cast iron exhaust manifold (3) with a carbon component C >0.5% and a weld connection (4) is provided between the hose line (2) and the exhaust manifold (3) wherein a bond cross section (b) of the weld connection (4) between the hose line (2) and the exhaust manifold (3) equals at least 50% of a wall thickness (d) of the hose line (2) in a weld region and wherein the wall thickness (d) of the hose line (2) equals 1.5 mm or less in a weld region of the weld connection, wherein the hose line is a metallic ring corrugated hose or bellows, and wherein the hose line is formed of a material that has a nickel content of at least 10%.