ASTM A139 Welded Steel Pipe Test Equipment

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ASTM A139 Welded Steel Pipe Test Equipment

ASTM A139 welded steel pipe specification covers five grades of electric-fusion (arc)-welded straight-seam or helical-seam steel pipe. Pipe of NPS 4 and larger with nominal (average) wall thickness of 1.0 in. or 25.4 mm and less are covered. The required chemical composition, tensile requirements of the steel, and the tensile requirements of the production welds are presented in the ASTM A139 welded steel pipe specification. Heat analysis of each heat of steel was made to determine the percentage of the elements as per chemical requirements. ASTM A139 tests to be performed shall include one longitudinal tension test for the steel, one reduced-section production weld test for the pipe, and hydrostatic test for each length of the pipe.

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