A method for manufacturing a steel-made Yankee cylinder used for drying a fibrous web in a paper or tissue machine and classified as a pressure vessel capable of being pressurized to at least 4 bar(e), wherein the Yankee cylinder comprises a cylindrical outer shell (2/ 2a,2b) and at least two circular disc-shaped gables (8/8a,8b) the method comprising the steps of: manufacturing the disc-shaped gables (8/8a,8b) from steel plates, and machining the outer circumference to a circular shape congruent to the outer circumference of the Yankee cylinder; manufacturing a first cylindrical shell section from rolled steel plates by welding a rolled steel plate together with another rolled steel plate along a weld seam running in the axial direction of the Yankee and welding the first cylindrical shell section to a first circular disc shaped gable, forming a first sub-section (2a, 8a) of the Yankee cylinder, and manufacturing a second cylindrical shell section from rolled steel plates by welding a rolled steel plate together with another rolled steel plate along a weld seam running in the axial direction of the Yankee and welding the second cylindrical shell section to a second circular disc shaped gable, forming a second sub-section (2b, 8b) of the Yankee cylinder; manufacturing an optional number of additional cylindrical shell sections from rolled steel plates by welding a rolled steel plate together with another rolled steel plate along a weld seam running in the axial direction of the Yankee; wherein at least one cylindrical shell section (2a,2b,2x) is welded together with another cylindrical shell section (2b,2a,2x) along a circumferentially running weld seam that is applied in at least two layers, characterized in that at least one layer of the weld seam is applied in a sequential application of a circumferentially running partial weld seam that is applied in mutually diametrically opposing pairs of weld seams (11a,11b) with a circumferential extension of each weld in this pair is less than 30° of the total circumference of the Yankee cylinder, and in that a subsequent pair of welds (11c, 11d) are applied in mutually diametrically opposing pairs of weld seams and applied 60-90° angularly offset from the preceding weld pair, and this application of weld pairs is continued until at least 4 pairs of welds have been applied evenly around the circumference of the cylindrical shell section. manufacturing the disc-shaped gables (8/8a,8b) from steel plates, and machining the outer circumference to a circular shape congruent to the outer circumference of the Yankee cylinder; manufacturing a first cylindrical shell section from rolled steel plates by welding a rolled steel plate together with another rolled steel plate along a weld seam running in the axial direction of the Yankee and welding the first cylindrical shell section to a first circular disc shaped gable, forming a first sub-section (2a, 8a) of the Yankee cylinder, and manufacturing a second cylindrical shell section from rolled steel plates by welding a rolled steel plate together with another rolled steel plate along a weld seam running in the axial direction of the Yankee and welding the second cylindrical shell section to a second circular disc shaped gable, forming a second sub-section (2b, 8b) of the Yankee cylinder; manufacturing an optional number of additional cylindrical shell sections from rolled steel plates by welding a rolled steel plate together with another rolled steel plate along a weld seam running in the axial direction of the Yankee; wherein at least one cylindrical shell section (2a,2b,2x) is welded together with another cylindrical shell section (2b,2a,2x) along a circumferentially running weld seam that is applied in at least two layers, characterized in that at least one layer of the weld seam is applied in a sequential application of a circumferentially running partial weld seam that is applied in mutually diametrically opposing pairs of weld seams (11a,11b) with a circumferential extension of each weld in this pair is less than 30° of the total circumference of the Yankee cylinder, and in that a subsequent pair of welds (11c, 11d) are applied in mutually diametrically opposing pairs of weld seams and applied 60-90° angularly offset from the preceding weld pair, and this application of weld pairs is continued until at least 4 pairs of welds have been applied evenly around the circumference of the cylindrical shell section.