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This paper presents the compressive and tensile strain capacities of X80 linepipe.The compressive and tensile strain limits of X80 highstrain pipe and a conventional pipe are compared by experimentally and analytically.Geometric imperfections of wall thickness,pipe diameter and longitudinal blister are taken into FEA model in order to predict the compressive strain limits precisely.Ductile crack growth behavior from a girth weld notch is simulated by FE analysis based on a damagebased model and is compared with the experimental results.