15Cr-1Ni Duplex Stainless (var. 2)

This is a duplex stainless steel with elevated cobalt (~13.4%) and carbon (~0.75%) content, combining a ferritic-austenitic microstructure with strengthening phases that distinguish it from conventional duplex grades. The high cobalt and carbon levels suggest this variant is engineered for elevated-temperature strength and wear resistance, positioning it in specialized applications demanding superior mechanical performance beyond standard duplex stainless steels. Notable versus conventional duplex grades (2205, 2507), this composition targets demanding aerospace, power generation, or wear-critical applications where thermal fatigue and abrasion resistance outweigh corrosion pitting resistance as the primary design driver.