Descriptors | Fusion welding, Pressure pipes, Manganese steels, Unalloyed steels, Alloy steels, Steels, Pipes, Pressure equipment, Seamed pipes, Arc welding, Chemical composition, Tensile strength, Yield strength, Visual inspection (testing), Dimensional tolerances, Test specimens, Sampling methods, Specimen preparation, Non-destructive testing, Hydraulic tests, Mechanical testing, Ultrasonic testing, Marking, Proof stress, Welding, Designations, Testing conditions, Verification |