Welding technology for metallic sheathing of offshore steel structures in seawater tidal and splash zones was described. Seawater-resistance stainless steel SUS 312L sheets of 0.4 - 0.6 mm in thickness were lap-welded on carbon steel pipes with the indirect seam welding process. Compared to conventional metallic sheathing methods, this method enabled to reduce material and fabrication costs. A combined welding method - indirect seam welding and plasma welding with Inconel 625 filler wire were preformed simultaneously - was developed to prevent crevice corrosion at severer environments. In case the metallic sheathes get damaged, a repair welding procedure was established.
Welding technology for metallic sheathing of offshore steel structures using seawater-resistant stainless steel sheet
Schweißtechnologie für die metallische Ummantelung von Offshore-Stahlkonstruktionen unter Verwendung von meerwasserbeständigem nichtrostenden Stahlblech
Nippon Steel Technical Report ; 95 ; 93-97
2007
5 Seiten, 13 Bilder, 3 Tabellen, 6 Quellen
Article (Journal)
English
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