Descriptors | Arc welding, Welding, In situ, Steels, Unalloyed steels, Manganese steels, Low-alloy steels, Pipelines, Pipes, Pipe fittings, Gas-shielded welding, Approval testing, Acceptance (approval), Welded joints, Weldability testing, Test specimens, Dimensions, Hardness, Testing conditions, Welders, Qualification approval, Ultrasonic testing, Non-destructive testing, Destructive testing, Underwater technology, Crack-opening displacement tests, Charpy impact tests, Examination (education) |