13Cr-2Ni Duplex Stainless (var. 2)

A precipitation-hardened duplex stainless steel variant combining ~13% chromium with nickel, molybdenum, and notable additions of vanadium and cobalt to achieve a dual-phase ferrite-austenite microstructure with enhanced strength and hardness. This modified composition—particularly the elevated carbon, vanadium, and cobalt content—represents a research or proprietary variant optimized for demanding applications requiring both corrosion resistance and high strength, distinguishing it from conventional 13Cr duplex grades. Typical industrial use includes high-pressure oil & gas equipment, corrosive chemical environments, and applications where weight savings and fatigue performance are critical; the alloy family bridges the gap between commodity stainless steels and more expensive superalloys.