17-4 PH Stainless Steel – Strength and Precision Under Pressure
Advanced Hermetic Solutions utilizes 17-4 PH stainless steel (UNS S17400) in hermetic packages and precision assemblies requiring high strength, toughness, and resistance to corrosion and heat.
Material Properties
- UNS Designation: S17400
- Density: 7.75 g/cm³
- Melting Point: 1,400°C (2,552°F)
- Thermal Conductivity: 18 W/m·K
- Electrical Resistivity: 0.0008 Ω·cm
- Modulus of Elasticity: 200 GPa
- Ultimate Tensile Strength: Up to 1,310 MPa (190 ksi)
- Yield Strength: Up to 1,172 MPa (170 ksi)
- Elongation: 10% in 50 mm
- Hardness: Up to 44 HRC
- Corrosion Resistance: Comparable to 304 and 316 stainless steels
- Heat Treatment: Precipitation hardening (H900–H1150 conditions)
Applications in Hermetic Engineering
Aerospace Systems
Used in high-strength aerospace housings, hermetic valve bodies, actuators, and flight-rated instrumentation components exposed to cyclic stress and vibration.
Medical Technology
Selected for its mechanical performance and biocompatibility in surgical tool enclosures, sterilizable housings, and implantable device components.
Defense & Chemical Systems
Employed in weapons-grade sensor mounts, explosive-proof connectors, and hermetically sealed flanges resistant to acids, brine, and high pressures.
Typical Industry Applications
- Flight actuator housings and satellite enclosures
- Hermetic pressure sensors and vacuum-sealed switches
- Implantable electronics requiring sterilization and high fatigue resistance
- Petrochemical seals, flanges, and fasteners
- Military connectors and EMI-shielded component bodies
Need Strength and Sealing Integrity?
Contact Advanced Hermetic Solutions to integrate 17-4 PH stainless steel into your custom brazed assemblies, high-reliability sensors, and precision enclosures.
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