2205 DuplexㅣUNS S32205

1. Introduce – Duplex stainless steel containing approximately 22% Cr, 5% Ni, and 3% Mo – Developed to address corrosion issues encountered with 300-series stainless steels – A material with a high pitting resistance index (PREN) of 34 to 38 – Used at temperatures of 315°C or lower; becomes vulnerable when exposed to high temperatures for extended periods *Duplex Stainless Steel √ 50:50 austenite-ferrite microstructure √ Steel with added Cr, Mo, W, and N to enhance corrosion resistance, strength, and resistance to chloride pitting and crevice corrosion √ Superior chlori...