Subsea Global Solutions (SGS) it a worldwide provider for underwater ship repair and maintenance. During a 2.5 year long extensive joint research and development program with DNV GL it was proven that underwater wet welds meeting the class A requirements of AWS D3.6-Underwater Welding Code can be produced. AWS D3.6 Class A welds are comparable to out of the water welded joints. Today, SGS has approval from DNV GL and from ABS to perform permanent underwater wet weld repairs on vessels and offshore installations.

This paper will discuss two applications of permanent underwater wet weld repairs performed on a cruise ship and on a Floating Production Storage Offloading (FPSO) vessel. The paper is co-authored by ABS, who will provide class opinion on underwater wet welds.

Subject
Water, Materials, Welding, Installation, Joints, Welded joints, Hull, Penetration, Repair, Steel, Marine vessels, Ports and harbors, Corrosion protection
Keywords:
Underwater welding, underwater wet welding, permanent repairs
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2019
Association for Materials Protection and Performance (AMPP)
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