13Cr-8Ni Austenitic Stainless (var. 6)

This is a precipitation-hardened austenitic stainless steel containing 13% chromium, 8% nickel, and notable aluminum (2.17%) and molybdenum (1.28%) additions that drive age-hardening and enhanced strength. The high carbon content (0.138%) combined with the austenitic matrix creates a material engineered for applications demanding both corrosion resistance and elevated strength without sacrificing toughness. Typical industrial use includes aerospace gas turbine components, steam turbine rotors, and high-temperature pressure vessels where a balance of corrosion resistance, thermal fatigue resistance, and high strength is critical—this composition bridges the gap between standard 300-series stainless steels and superalloys, offering better machinability and lower cost than nickel-based alternatives while maintaining service capability at moderate-to-elevated temperatures.