Method for removing brittleness and stresses from welded...

H - Electricity – 05 – B

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H05B 7/18 (2006.01) B23K 9/00 (2006.01) C21D 9/50 (2006.01)

Patent

CA 1046589

ABSTRACT Brittle fracture in weld steel pipe structures having a seam adjacent a butt weld is substantially eliminated by arc remelting to form a bead of weld material over the seam; this is found to increase the toughness, eliminate weld defects and relieve residual tensile stress in the circum- ferential direction.

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