Matters needing attention when buying large diameter straight seam steel pipe
Before purchasing large-diameter straight seam steel pipes (LSAW), you should follow the pre-designed specifications, lengths, materials, wall thicknesses, welding standards and weld requirements, which must be communicated well before purchasing. 1. The first is the specification. For example, 800mm is also called DN800, including 820mm and 813mm of A and B series, or the outer diameter of 800mm must be clearly required to avoid unnecessary losses. 2. The wall thickness of large-diameter straight seam steel pipe is required to be 16mm. It is possible that the actual thickness of the raw materials will be 15.75mm and 16.2mm, and there will be upper or lower differences. These are normal deviations. Because straight seam steel pipes are all ton prices, it is necessary to communicate in advance to avoid differences in weight. 3. The normal length of the large-diameter straight seam steel pipe is 12m. When it needs to be fixed, it needs to be communicated in advance, because the pric...