1. In general, the size of API 5L X52 straight seam steel pipe is fixed, and the most common ones are 6m, 9m and 12m. The size of steel pipe is basically determined according to the needs of customers; API 5L X52 seamless steel pipe is rarely fixed in size, so why? Because, if the API 5L X52 seamless steel pipe is made into a fixed size, it will increase the cost and the price will naturally be very high.

2. We can also see from the cross section at both ends of the pipe that the API 5L X52 straight seam steel pipe will have welding traces, while the API 5L X52 seamless steel pipe does not. The API 5L X52 steel pipe with only one longitudinal weld is API 5L X52 straight seam steel pipe.

API 5L X52 seamless steel pipe is limited by processing technology, and the wall thickness of steel pipe will not be made very thin. The biggest difference between seamless pipe and welded pipe is the transmission of pressure gas or liquid.