Can butt weld specimens for a welder qualification test include the longitudinal weld?

Butt weld specimens for a welder qualification test can indeed include the longitudinal weld. This is because the purpose of the qualification test is to assess the welder's ability to produce sound welds in various configurations, which include both the longitudinal and circumferential seams. When qualifying a welder, the testing should encompass the types of welds the welder will actually perform in the field, and a longitudinal weld is a common type that may be encountered in pipeline construction and repair.

The inclusion of longitudinal welds allows for a comprehensive evaluation of the welder's skills, ensuring that they can handle different welding positions and joint types effectively. The focus is on the welder's capability to make quality welds that meet the requirements specified in the API 1104 standard and other applicable codes and practices.

This understanding underlines the significance of practical testing in welding qualification, making the option true.