Super duplex stainless steel (SDSS) pipes serve highly corrosive and high-pressure environments, notably subsea flowlines, risers, umbilicals and topside process piping in sour-service fields. Production remains relatively small in volume compared with carbon steel but is strategically important. Over the last decade, global SDSS pipe capacity has expanded in Europe and Asia, with niche producers investing in advanced melting, remelting and extrusion facilities to achieve tight control of composition and microstructure. SDSS pipe prices are heavily influenced by alloying elements such as nickel, molybdenum and chromium, which have seen pronounced price swings. The combination of complex metallurgy, demanding QA/QC, and limited qualified mills makes SDSS a high-value, high-margin product.