The difference between submerged arc welded spiral steel pipe and straight seam high frequency welded steel pipeSubmerged arc welding spiral steel pipe uses continuous welding wire as the electrode and filler metal. When working, the welding area is covered with a layer of granular flux. The large-d

Causes and preventive measures of undercut of submerged arc welded steel pipeWhat is the undercut of submerged arc welded steel pipe?The undercut is a product defect produced during high-speed welding is spiral submerged arc welded pipes. This defect makes the weld seem particularly affected. And th

Acceptance method of straight seam welded steel pipe1. The inspection and acceptance of straight seam welded steel pipes shall be carried out by the technical supervision department of the supplier.2. The supplier guarantees that the delivered straight seam welded steel pipe meets the requirements o

Common anti-corrosion technology of spiral steel pipeAnti-corrosion spiral steel pipe plays an important and different role in people's daily life. Anti-corrosion spiral steel pipe generally refers to the use of special technology to treat ordinary spiral steel pipe with anti-corrosion treatment, so