Author(s)
Bill Bruce Senior Principal Engineer, Welding Technology DNV GL USA, Inc.
5777 Frantz Road
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PR-186-184507-R02 Evaluate Higher Strength Consumables for Manual Root Beads in X70 Girth Welds
Author(s)
Research Contractor
Release Date:
01/08/2021
Number Of Pages
120
Catalog No:
PR-186-184507-R02

This project evaluated using higher strength E8010 electrodes for root pass welding on modern X70 strength line pipe, as part of a solution to increase overall weld strength, to match or overmatch the actual strength of the line pipe. The operability, weldability, and productivity of E8010 root pass welds were evaluated by welder operability trials, weldability tests, and welding procedure qualification testing and reviews. A separate guidance report (Catalog PR-186-184507-R01) with recommendations and precautions for using an E8010 root pass was developed.

 

 

This project evaluated using higher strength E8010 electrodes for root pass welding on modern X70 strength line pipe, as part of a solution to increase overall weld strength, to match or overmatch the actual strength of the line pipe. The operability, weldability, and productivity of E8010 root pass welds were evaluated by welder operability trials, weldability tests, and welding procedure qualification testing and reviews. A separate guidance report (Catalog PR-186-184507-R01) with recommendations and precautions for using an E8010 root pass was developed.

 

 

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Research Category:
Welding, high yield pipe
Project
Technical Committee
Contracts