Why Choose Outokumpu?
We have the material, the know-how and the resources. As a global leader in stainless steel, Outokumpu serves customers in the oil and gas industry across every continent. We look forward to serving you.
Decades of Know-how
Though oil is not corrosive in itself, production takes place in highly corrosive environments. Over the years we have refined our grades to handle these conditions.
Today, stainless steel, especially Duplex, has all but replaced traditional carbon steels. The benefits include superior corrosion resistance, excellent mechanical properties, greater ecological sensitivity and recompelling, both for topside construction and oil flow applications.
We Do Not Buy Stainless Steel – We Make It
When you deal with Outokumpu you go straight to the source. We make the material that many others market. How can you benefit from this? For a start, you can be sure that we have full control over the entire production process from melt to delivery. Furthermore, as we make the steel you need never worry about availability. You will get the quantities you need when you need them. And because we handle all research and development (R&D), nobody is better able to answer any questions you may have about material performance.
Flowlines
Due to the presence of CO2, chlorides, hydrogen sulphide (H2S) and the formation of water condensate caused by reduced pressure, corrosion is a very real risk. If you then factor in high flow rates and temperatures, it is easy to see why the material used for flow lines and piping systems, has to be very tough indeed. Thanks to its superior mechanical strength and excellent corrosion resistance, grades LDX 2101 and 2205 are excellent choices. They are economical too when you consider that for some dimensions installation costs for Duplex are lower than for clad steel. Furthermore, grades 254 SMO, 2205 and SAF 2507 are approved by the National Association of Corrosion Engineers (NACE) for sour service, based on their proven corrosion resistance properties.
Topside Construction Requires Top Performance Materials
Stainless steels lend themselves superbly to topside construction both technically and economically. In these applications the life-cycle benefits are significant while the dramatic weight reductions provided by stainless steel (especially Duplex) help to reduce the overall cost of the project.
Main Process Piping
In offshore wells production can be complicated. In addition to the incoming mixtures of oil, gas and sand, the main process piping has to withstand seawater, H2S and CO2. In extreme conditions such as at elevated temperatures and under high pressure, process fluids are often highly corrosive and require extreme measures. Grades 2205, SAF 2507 and 254 SMO lend themselves superbly to this type of piping.
Seawater Piping
The up- and downside of chlorine is well known when it comes to seawater piping. Without it, heat exchangers lose their effectiveness. With it, corrosiveness increases dramatically. Outokumpu’s 254 SMO and 4529 have enjoyed widespread success in systems operating at up to 30ºC. Furthermore, if you complement 254 SMO or 4529 piping with 4565 for flanges or other parts with crevices, service temperatures can be increased.
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