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15-7PH Stainless Steel Foil
Available Configurations
Properties common to all products in this list
Key Features
15-7PH Stainless Steel Foil (UNS S15700) is a semi-austenitic precipitation-hardening stainless steel in thin rolled form, delivering a high strength-to-weight ratio, excellent corrosion resistance, and the ability to retain mechanical performance in aggressive thermal and chemical environments:
High Strength-to-Weight Ratio in Thin Section
15-7PH Foil delivers a high strength-to-weight ratio in thin rolled form, making it valuable for aerospace structural elements and lightweight components where minimizing mass while maintaining mechanical performance is a primary design driver.
High Tensile Strength After Heat Treatment (well above 1400 MPa)
In the annealed condition the foil offers sufficient ductility for precision forming operations, and subsequent heat treatment can raise tensile strength to levels well above 1400 MPa, providing performance beyond that of standard austenitic foils while maintaining dimensional stability in thin section.
Excellent Corrosion Resistance
Excellent corrosion resistance supports reliable service life in catalyst carriers and thermal management components exposed to aggressive chemical and thermal environments encountered in emission control and high-performance engine applications.
Dimensional Stability in Thin Section
15-7PH Foil maintains dimensional stability even at thin gauge, supporting precision diaphragms and spring elements in sensors and actuators where consistent geometry directly affects device performance.
Suited to Miniaturised Component Fabrication
The combination of high strength, thin-section dimensional stability, and traceable specification control makes 15-7PH Foil well suited to fabrication of miniaturised components and high-reliability sensor housings in research and precision manufacturing.
Industrial Applications
15-7PH Stainless Steel Foil is used across aerospace, emission control, and sensor manufacturing sectors where high strength-to-weight ratio and dimensional stability must be combined in thin section:
- ✦ Aerospace Structural Elements
- Used in aerospace structural elements where a high strength-to-weight ratio in thin section supports lightweight design objectives without compromising the mechanical performance required of structural components.
- ✦ Catalyst Carriers in Emission Control Systems
- Formed into catalyst carriers for emission control systems, where excellent corrosion resistance and the ability to retain mechanical performance in aggressive thermal and chemical environments ensure reliable long-term operation.
- ✦ Precision Diaphragms & Spring Elements in Sensors and Actuators
- Used in precision diaphragms and spring elements within sensors and actuators, where dimensional stability in thin section and high tensile strength after heat treatment support consistent, repeatable device performance.
- ✦ Thermal Management Components in High-Performance Engines
- Applied in thermal management components for high-performance engines, where the foil's ability to retain mechanical performance in aggressive thermal environments ensures durability under sustained high-temperature operation.
- ✦ Miniaturised Component Fabrication & Research
- Provides a traceable, specification-controlled thin-section substrate for fabrication of miniaturised components, high-reliability sensor housings, and investigations into precipitation-hardening behavior at reduced section thicknesses.
Material Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | <30 |
| Tensile strength( MPa ) | 1020 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 80 |
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 7.81 |
| Element | Value |
|---|---|
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 14.4@20-90°C |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Linear dimension | <100mm | ±1mm |
| Linear dimension | >=100mm | +2 / -1% |