Patent ID: 8790582

Claim:
An exhaust gas-treating device housing of an exhaust system of an internal combustion engine, the housing comprising: a jacket, which is closed in the circumferential direction, for mounting at least one exhaust gas-treating element; a ring body, said jacket passing over at one axial end into said ring body, said ring body being closed in a circumferential direction, said ring body for connecting said housing to another component of the exhaust system, said jacket and said ring body being manufactured from a single sheet steel billet by rolling the sheet steel billet in a circumferential direction and by connecting abutting edges of the sheet steel billet, said jacket and said ring body being at least one of formed of different materials and having different wall thicknesses to have said ring body be stronger than said jacket, different portions of said single sheet steel billet form said jacket and said ring body, said different portions of said single sheet steel billet being connected together at their lateral longitudinal edges.