UNS S17400 precipitation-hardening stainless steel delivers exceptional corrosion resistance, mechanical performance, and heat-treatability. It features superior chloride stress corrosion cracking resistance, particularly in chloride environments. The alloy's composition (Fe-Cr-Ni-Cu-Mo base with controlled C/Nb additions) ensures stable performance in high-temperature and highly corrosive conditions.

• High Strength: Achieves ~1100 MPa tensile strength (H1150 condition: solution treatment + low-temperature aging)
• Corrosion Resistance: Exceeds standard stainless steels in aggressive chemical/climatic environments
• Heat Treatability: Tunable properties via solution treatment/aging for optimized strength/corrosion balance
• Surface Integrity: Maintains post-HT grindability for precision applications
• Weldability: Good performance with controlled heat treatment and proper welding procedures

Critical components in aerospace structural elements, petrochemical processing equipment, medical implant devices, and high-stress corrosion-resistant systems.

• Aerospace: Aircraft components, engine parts & structural systems - leveraging high strength-to-weight ratio
• Oil & Gas: Valves, pump components & wellhead connections - excels in corrosive extraction environments
• Medical Devices: Surgical instruments, orthopedic implants & forceps - biocompatible with sterilization resistance
• Marine Engineering: Offshore platforms, diving gear & seawater-handling components - withstands saltwater corrosion
• Automotive: Engine/transmission parts & suspension systems - enhances strength & wear resistance
• Military/Defense: Fire control systems, missile components & tactical gear - critical high-reliability applications