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AISI 301 Stainless Steel Foil
Available Configurations
Properties common to all products in this list
Key Features
AISI 301 Stainless Steel Foil (UNS S30100) is a metastable austenitic stainless steel in thin sheet form, valued for its high tensile strength, excellent ductility before work hardening, and pronounced strain-hardening capability:
Strain-Induced Martensitic Transformation During Cold Working
With 16-18% chromium and 6-8% nickel, AISI 301 Foil undergoes strain-induced martensitic transformation during cold working, reaching tensile strengths well above those of stable austenitic grades while maintaining useful elongation.
Excellent Ductility Before Work Hardening
Excellent ductility before work hardening allows the foil to be formed into complex shapes before the strain-hardening response delivers its final strength gain, combining formability with high finished-component strength.
Adequate Corrosion Resistance
Adequate corrosion resistance is maintained in moderately aggressive environments, suiting AISI 301 Foil to shielding strips and structural laminates that require both mechanical performance and environmental durability.
Thin Gauge with Smooth Surface Finish
The thin gauge and smooth surface of AISI 301 Foil suit precision applications where space and weight are constrained, supporting integration into compact aerospace and electronics assemblies.
High Strain-Hardening Capability for Precision Springs
Pronounced strain-hardening capability makes AISI 301 Foil valuable for precision spring elements where the cold-forming process itself delivers the strength required for reliable spring performance.
Industrial Applications
AISI 301 Stainless Steel Foil is used across aerospace, electronics, and automotive sectors where space and weight constraints favour a thin-gauge, strain-hardenable austenitic foil:
- ✦ Precision Spring Elements
- Formed into precision spring elements, where pronounced strain-hardening capability delivers high finished-component strength directly from the forming process, and excellent ductility before work hardening enables complex spring geometries.
- ✦ Shielding Strips
- Used as shielding strips where adequate corrosion resistance combined with thin-gauge dimensional control supports compact, lightweight shielding solutions in space-constrained assemblies.
- ✦ Resilient Structural Laminates
- Applied in resilient structural laminates where high tensile strength after strain-induced transformation, combined with the foil's smooth surface finish, supports reliable performance in precision laminated assemblies.
- ✦ Aerospace, Electronics & Automotive Precision Applications
- Used across aerospace, electronics, and automotive industries for precision spring elements, shielding strips, and resilient structural laminates where space and weight constraints favour the thin-gauge, high-strength characteristics of AISI 301 foil.
- ✦ Ultra-Lightweight Structural Materials Research
- Supports investigations into ultra-lightweight structural materials, fatigue-resistant laminates, and TRIP-effect behavior in thin-section austenitic alloys, where the foil's strain-hardening response is an experimental variable.
Material Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 165 |
| Elongation at break( % ) | 60 |
| Modulus of elasticity( GPa ) | 190-210 |
| Izod impact strength( J m⁻¹ ) | 20-136 |
| Tensile strength( MPa ) | 550-1260 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 70-72 |
| Element | Value |
|---|---|
| Melting point( C ) | 1400-1420 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 16.3@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 18@20-100°C |
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 7.9 |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Linear dimension | <100mm | ±1mm |
| Linear dimension | >=100mm | +2 / -1% |