| Issue |
E3S Web of Conf.
Volume 225, 2021
II International Conference “Corrosion in the Oil & Gas Industry” 2020
|
|
|---|---|---|
| Article Number | 05005 | |
| Number of page(s) | 3 | |
| Section | Coating and Inhibitors | |
| DOI | https://doi.org/10.1051/e3sconf/202122505005 | |
| Published online | 05 January 2021 | |
Welding of pipes in fixed position with internal anti-corrosion protection of joints
1 IPC LLC, Ivan Goncharov St., Bugulma, Tatarstan Republic, Russia, 423233
2 Tomsk Polytechnic University, Lenin avenue, Tomsk, Russia, 634050
* Corresponding author: technical@ipc-bugulma.ru
The article reviews the weldability of clad steel used for protection of inner surface of oil-and-gas pipelines from corrosion by different welding materials. It is indicated that during welding of the root pass by stainless electrodes in one pass the transition structures appear on the interface of two dissimelar metals. This process leads to the formaion of cracks. To reduce negative impact of the transition structures on the characteristics of welded joints it is recommended to weld the first two passes with strainless electrodes.
© The Authors, published by EDP Sciences, 2021
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