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AISI 310 Stainless Steel Foil (Light Tight)
Available Configurations
Properties common to all products in this list
Key Features
AISI 310 Stainless Steel Foil (Light Tight) (UNS S31000) is a high-chromium, high-nickel austenitic foil manufactured to a pinhole-free surface that provides complete opacity to visible and near-visible radiation, combining the exceptional elevated-temperature performance of the 310 alloy system with stringent light-exclusion characteristics:
Complete Opacity to Visible & Near-Visible Radiation
Manufactured to a pinhole-free surface, this foil provides complete opacity to visible and near-visible radiation, combining reliable optical isolation with the exceptional elevated-temperature performance of the 310 alloy system.
Stable Protective Oxide Scale to 1100 °C
With 24-26% chromium and 19-22% nickel, this foil sustains a stable protective oxide scale in continuous service to approximately 1100 °C, supporting light-tight barrier integrity even under severe thermal exposure.
Superior Creep Strength at Elevated Temperature
Higher carbon content relative to 310S supports superior creep strength and load-bearing capacity at elevated temperature, ensuring the light-tight barrier maintains structural integrity under sustained high-temperature service.
Good Formability & Weldability (617 MPa Tensile Strength)
Room-temperature tensile strength of 617 MPa and elongation of 45% support good formability and weldability by all standard fusion processes, allowing complex light-tight enclosure geometries to be fabricated.
Combined Thermal Stability & Zero Light Transmission
Thermal stability, chemical resistance, and zero light transmission together suit this foil to shielding enclosures, aperture masks, and detector housings in high-temperature analytical and optical systems.
Industrial Applications
AISI 310 Stainless Steel Foil (Light Tight) is used across high-temperature analytical, optical, and spectroscopy sectors where optical isolation must coexist with severe thermal durability:
- ✦ Shielding Enclosures
- Used as shielding enclosures, where complete opacity to visible and near-visible radiation combined with a stable protective oxide scale to approximately 1100 °C provides reliable optical and thermal protection.
- ✦ Aperture Masks
- Formed into aperture masks, where good formability and weldability allow precise mask geometries to be fabricated while maintaining the pinhole-free light exclusion essential to the application.
- ✦ Detector Housings in High-Temperature Analytical & Optical Systems
- Used in detector housings for high-temperature analytical and optical systems, where superior creep strength and load-bearing capacity at elevated temperature ensure housing integrity under sustained thermal exposure.
- ✦ Spectroscopy & High-Temperature Photonics Research
- Provides a conductive, oxidation-resistant, light-isolating substrate for spectroscopy, high-temperature photonics, and radiation detection applications requiring simultaneous optical isolation and thermal durability.
Material Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 170 |
| Elongation at break( % ) | 50 |
| Modulus of elasticity( GPa ) | 190-210 |
| Izod impact strength( J m⁻¹ ) | 20-136 |
| Tensile strength( MPa ) | 530-1200 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 70-78 |
| 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 ) | 16-18@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% |