What welding position is this?
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The pipe can be rotated, but the welder does not weld in the flat welding position, only in the vertical welding position. Please tell me, is his welding position 1G?
Standard classifications of welding positions generally include flat welding (1G or PA), vertical welding (2G or PC), horizontal welding (3G or PF), and overhead welding (4G or PE). different standards and * * There may be slight differences. According to your description, the pipe can be rotated and the welder only welds in the vertical welding position, which is generally considered the 5G or PF position, not the 1G or PA. The 5G welding position is a type of fixed pipe welding in which the pipe is placed horizontally and cannot be rotated. The welder works around the pipe, which requires considerable skill because different parts of the weld need to be welded in different positions (such as from bottom to top, from the side or from above). If the pipe is stationary and the welder welds around the pipe, this is usually 5G (according to the American Welding Society AWS) or PF (according to the international standard ISO and the European standard EN). If you follow Chinese standards, different encodings may be used. You need to check the specific welding standards to determine. .
The welding position depends on NB/T47015. Other than that, don’t rely on the standards if it’s weird.
TSG Z6002-2010, 5G