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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Recommended Test Machine
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Force range of 300 kN to 2,000 kN (67,500 lbf to 450,000 lbf)
The best choice for performing static tension and/or compression applications when force capacities of 300 kN (67,000 lbf) or more are needed
Includes its own grips
Recommended Testing Accessories
Load ratings from 25 kN to 500 kN (5,625 lbf to 112,500 lbf)
Jaws move laterally in stationary position while grip body moves on adjustment
Works well with round or flat specimens