Size: 219-3620 - mm wall thickness: 4-30 mm
Material: Q235 Q345 L245
Standard: SY/T5037-2000
 
Application: made of double-side automatic submerged arc welding is used for water, gas, air and steam general low-pressure fluid conveying with submerged arc welding steel pipe.
Double wire, double-sided submerged arc welding of spiral steel pipe is arc welding method, under the flux layer using welding wire and flux under the flux layer between the burning arc heat, melt welding wire and flux and the base metal.The main characteristics of the product is a double-sided submerged arc welding, not only high deposition rate, and have deep penetrating ability;2 it is arc and weld zone are well protected now, the weld quality, compactness, and weld appearance of level off, smooth, can satisfy the requirements for the performance of weld.Use double-sided automatic submerged arc welding or one side welding into legal system generally low pressure liquid delivery with submerged arc welding steel pipe, used to transport oil, gas, air, water and heating steam and other general low pressure fluid and other purposes of welded steel pipe.Low pressure fluid conveying in welded steel pipe in addition to directly used for conveying fluid, also used as a low voltage large amounts of fluid conveying with galvanized welded steel pipe.