Geometrical Dimensions and Production Process Requirements of Welded Tube Blanks
The geometric dimensions of the welded tube blank mainly refer to the width and thickness and their allowable deviations. The longer the length of the welded tube blank, the better the production. The...
Forming Process of LSAW Steel Pipe (UOE vs JCOE)
Longitudinal submerged arc welded pipe (LSAW) is generally made of steel plate as raw material. After different forming processes, double-sided submerged arc welding and post-weld diameter expansion a...
Steel Pipe Material 16Mn vs Q345
Q345 steel is the replacement of the old grades of 14MnNb, 12MnV, 16MnRE, 16Mn, 18Nb, and other steels, not just the replacement of 16Mn. In terms of chemical composition, 16Mn and Q345 are also diffe...
Process Flow and Precautions of High Frequency Welded Pipe(ERW) Production
High-frequency welding is a type of welding method that uses resistance heat generated by high-frequency currents flowing through the continuous contact surface of the workpiece to achieve mutual conn...
Research on C02 and H2S Corrosion of Oil and Gas Pipelines
With the increasing exploitation of oil and natural gas, the corrosion and protection of oil and gas pipelines have also received more and more attention. CO2 exists in oil and gas formations as a com...
Welding Seam Treatment and Process Characteristics of Spiral Pipe
Weld processing:
1. If the gap is too large, the proximity effect will be reduced, the eddy current heat will be insufficient, and the weld will have poor intercrystalline joints, resulting in non-fus...
