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AISI 304 Stainless Steel Foil
Available Configurations
Properties common to all products in this list
Key Features
AISI 304 Stainless Steel Foil (UNS S30400) is a thin-gauge austenitic stainless steel product combining the proven corrosion resistance of the 18% chromium-8-10% nickel alloy system with precise dimensional control and excellent surface finish:
Supports Both Structural Applications & Forming Operations
Supplied in the annealed condition with tensile strength of 500-700 MPa, yield strength of 190-240 MPa, and elongation of approximately 40%, this foil supports both structural applications and forming operations at thin section.
Resists Corrosion in Natural, Oxidizing & Low-Chloride Environments
The face-centerd cubic structure is essentially non-magnetic in the annealed condition and resists corrosion in natural, oxidizing, and low-chloride environments, suiting it to food-contact and clean-area applications.
Continuous Service Temperature to 870 °C (925 °C Intermittent)
AISI 304 Foil offers a continuous service temperature of approximately 870 °C, rising to 925 °C under intermittent service conditions, supporting use in automotive shielding and other elevated-temperature applications.
Precise Dimensional Control & Excellent Surface Finish
Precise dimensional control and excellent surface finish make AISI 304 Foil well suited to hygienic enclosures and clean-area components where surface quality directly affects suitability for the application.
High-Quality Substrate for Research
AISI 304 Foil serves as a high-quality substrate in research for electrochemical studies, thin-film deposition, and surface treatment evaluation, where its well-characterized properties support reproducible results.
Industrial Applications
AISI 304 Stainless Steel Foil is used across food-contact, hygienic, automotive, and clean-area sectors where proven corrosion resistance must be combined with precise dimensional control in thin section:
- ✦ Food-Contact Packaging
- Used in food-contact packaging, where resistance to corrosion in natural and low-chloride environments meets the hygiene requirements of food packaging applications.
- ✦ Hygienic Enclosures
- Formed into hygienic enclosures, where excellent surface finish and proven corrosion resistance support reliable performance in applications demanding consistent cleanability.
- ✦ Automotive Shielding
- Used in automotive shielding, where continuous service temperature of approximately 870 °C, rising to 925 °C under intermittent conditions, supports reliable performance under elevated-temperature exhaust and engine-bay conditions.
- ✦ Chemical Plant Lining & Clean-Area Components
- Applied in chemical plant lining and clean-area components, where precise dimensional control and the foil's resistance to oxidizing and low-chloride environments support reliable, contamination-controlled performance.
- ✦ Electrochemical Studies & Thin-Film Deposition Research
- Serves as a high-quality substrate in research for electrochemical studies, thin-film deposition, surface treatment evaluation, and precision fabrication of experimental components.
Material Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 160-190 |
| Elongation at break( % ) | <60 |
| Modulus of elasticity( GPa ) | 190-210 |
| Izod impact strength( J m⁻¹ ) | 20-136 |
| Tensile strength( MPa ) | 460-1100 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 70-72 |
| Element | Value |
|---|---|
| Melting point( C ) | 1400-1455 |
| 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 ) | 7.93 |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Linear dimension | <100mm | ±1mm |
| Linear dimension | >=100mm | +2 / -1% |