# Unveiling the Excellence of Super Duplex Pipe Fittings and Flanges 3rd Generation DSS (Super Duplex Stainless Steel – SDSS): The late 1980s heralded the age of super duplex stainless steel, which was distinguished by ultra-low carbon, increased molybdenum, and nitrogen content. Significant grades such as Super duplex 2507 flanges, 2906, and 2707 were developed, confirming the steel’s superior potential. [Unveiling the Excellence of Super Duplex Pipe Fittings and Flanges ](https://)