DRIVERS AND TRENDS
Support frames, deck structures and complex process and drilling modules are the essential parts of the offshore oil & gas production facilities. reduction in plate thickness, compared to s355, can be 50% for s690 and 60% for s890 grades.
Reliability, due to nearly defect-free and high-toughness butt welds, determines a substantial part of the construction integrity. New covered electrodes, flux cored wires and wire/flux combinations have become available for the welding of (very) high strength steel components. They offer the required combination of strength and toughness in the as-welded and post-weld heat-treated condition, and very low weld metal hydrogen content.
An important challenge is the working range of a consumable, that still delivers required properties. Restrictions in operability, heat input, welding position, or joint configuration limit the application of a specific consumable and should be minimized.
POWER WAVE® AC/DC 1000
POWER WAVE® 500S
Invertec V350 PRO®