Welding-The Manufacturing of Steel Tubular Poles
Describe:
For steel monopole, steel tube pole, and steel tubular tower, in addition to longitudinal seams, circumferential fillet welds between flanges and the tube body are made by CO₂ gas metal arc welding (GMAW) or automatic submerged arc welding. The welding procedure follows qualified WPS (e.g., preheat 80–120°C, interpass temperature ≤200°C). Circumferential welds undergo 100% magnetic particle testing (MT) and 20% radiographic testing (RT, AB grade). Weld appearance meets AWS D1.1 or ISO 5817 Level B requirements, with typical welding distortion controlled within ≤1mm per meter.
Inquire Now
If you have any questions or needs about the product, please fill in the following form and we will contact you as soon as possible.