What is the appearance requirements of LSAW steel pipes?
LSAW steel pipes play a very important role in our lives. Do you know what requirements we have on the appearance of LSAW steel pipes? The following is a detailed introduction: 1. Basic requirements for the appearance of the welded seam of a LSAW steel pipe Before the non-destructive testing of the LSAW steel pipe, the visual inspection of the weld shall meet the requirements. The general requirements for the appearance of the welded seam of the longitudinal steel pipe and the surface quality of the welded joint are as follows: The welding appearance should be well formed, and the width should be 2mm on each side covering the edge of the groove. The height of the foot of the fillet weld should meet the design requirements, and the shape should transition smoothly. 2. Welding joint surface (1) Cracks, unfused, pores, slag inclusions, and splashes are not allowed. (2) There shall be no undercut on the weld surface of pipes with a design temperature lower than -29 degree...