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AISI 316 Stainless Steel Foil (Light Tight)
Available Configurations
Properties common to all products in this list
Key Features
AISI 316 Stainless Steel Foil (Light Tight) (UNS S31600) is a molybdenum-bearing austenitic stainless steel foil manufactured to a pinhole-free surface that provides complete opacity to visible and near-visible radiation while retaining the enhanced pitting and crevice corrosion resistance of the 316 alloy system:
Complete Opacity Combined with Enhanced Corrosion Resistance
This foil provides complete opacity to visible and near-visible radiation while retaining the enhanced pitting and crevice corrosion resistance of the 316 alloy system, a combination unavailable in standard austenitic light-tight foils.
Suited to Chloride-Vulnerable Environments
With 16-18% chromium, 10-14% nickel, and 2-3% molybdenum, this foil is well suited to light-tight applications in marine, pharmaceutical, chemical processing, and cleanroom environments where standard austenitic light-tight foils would be vulnerable to chloride-induced corrosion.
Good Formability & Mechanical Integrity Under Thermal Cycling
Good formability and mechanical integrity under thermal cycling support integration of this foil into sensor housings, beamline shuttering, and optical enclosures requiring reliable thermal performance.
Suited to Vacuum-Enclosed Thermal Barriers
The combination of corrosion resistance and mechanical integrity under thermal cycling suits this foil to precision vacuum-enclosed thermal barriers where both optical and thermal performance are required.
Corrosion-Resistant Optically Opaque Substrate
This foil provides a corrosion-resistant, optically opaque substrate suited to photosensitive instrumentation deployed in chemically aggressive service environments.
Industrial Applications
AISI 316 Stainless Steel Foil (Light Tight) is used across marine, pharmaceutical, chemical processing, and cleanroom sectors where chloride resistance and optical isolation must coexist:
- ✦ Sensor Housings
- Used in sensor housings, where complete opacity to visible and near-visible radiation combined with enhanced pitting and crevice corrosion resistance ensures reliable optical isolation in chloride-exposed environments.
- ✦ Beamline Shuttering
- Applied as beamline shuttering, where good formability and mechanical integrity under thermal cycling support reliable shutter performance in demanding optical and vacuum environments.
- ✦ Optical Enclosures
- Used in optical enclosures, where the molybdenum-bearing composition's corrosion resistance suits marine, pharmaceutical, and chemical processing environments where standard austenitic light-tight foils would be vulnerable.
- ✦ Precision Vacuum-Enclosed Thermal Barriers
- Formed into precision vacuum-enclosed thermal barriers, where mechanical integrity under thermal cycling and complete light opacity together ensure reliable combined thermal and optical performance.
- ✦ Photosensitive Instrumentation in Chemically Aggressive Environments
- Provides a corrosion-resistant, optically opaque substrate for photosensitive instrumentation in chemically aggressive service environments, where standard austenitic light-tight foils would be vulnerable to chloride-induced corrosion.
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 ) | 460-860 |
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 70-78 |
| Temperature coefficient( K⁻¹ ) | - |
| Element | Value |
|---|---|
| Melting point( C ) | 1370-1400 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 502@23°C |
| 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 ) | 7.96 |
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Linear dimension | <100mm | ±1mm |
| Linear dimension | >=100mm | +2 / -1% |