- Materials
- Forms
- Reference Materials
-
Services
-
Services
-
-
Sectors
-
Supporting cutting edge research and development with advanced materials to your needs.
High performance materials for extreme conditions.
Innovative and lightweight materials with high mechanical properties and durability.
Materials used in chemical engineering from consumables to innovative solutions.
Advanced materials characterized by high electrical or insulation performance.
High quality materials for renewable energy.
Biocompatible and biodegradable materials to the highest standards.
High purity, biocompatible materials for high performance devices and applications.
High purity metals and alloys in various forms and crucibles suitable to your needs.
State of the art materials for the next generation of technologies.
High performance materials for extreme conditions.
Durable materials for corrosive environments.
Foils, disks or windows across a range of materials to facilitate your innovation.
Polymers, metal foils, and sustainable materials for your packaging needs.
Your requirements for unique products and attributes will be met across our 170,000+ product range and customization capabilities.
High-quality materials across branded products in various forms including rods, wires, and foils support space technology needs.
Highest quality materials to support your need for small-quantity specialist materials such as graphite and lithium compounds.
High purity materials to improve the reproducibility and reliability of your evaporation processes.
-
- Product Ranges
-
Resources
-
Find out our latest news.
Read our latest insights, and opinions.
Discover our Innovation Discovered podcasts on innovation, products, interesting topics, and more.
Find out how we've worked with our partners
Our latest updates on what we are doing, find out more.
Find out more about us and the great roles we have available for talented individuals. Find out more.
Take a look at our global distributors.
Explore our FAQ resource to help answer your key questions.
Gain a clearer picture of the language used in scientific study
-
- About Us
AISI 430 Stainless Steel Foil (Light Tight)
Available Configurations
Properties common to all products in this list
Key Features
AISI 430 Stainless Steel Foil (Light Tight) (UNS S43000) is a ferritic chromium stainless steel foil with 16-18% chromium, manufactured to a pinhole-free surface that ensures zero light transmission while retaining the oxidation resistance, high-temperature stability up to approximately 870 °C, and soft magnetic properties of the 430 alloy system:
Combines Optical Opacity, Magnetic Permeability & Elevated-Temperature Capability
This foil combines complete optical opacity, magnetic permeability, and elevated-temperature capability — characteristics that are difficult to achieve in a single foil from other alloy families.
Zero Light Transmission
Manufactured to a pinhole-free surface, this foil ensures zero light transmission, providing a reliable optical barrier alongside its magnetic and thermal properties.
Retains Soft Magnetic Properties of the 430 Alloy System
This foil retains the soft magnetic properties of the 430 alloy system, supporting applications requiring magnetically functional shielding alongside optical isolation.
High-Temperature Stability to ~870 °C
High-temperature stability up to approximately 870 °C ensures this foil maintains both its optical opacity and magnetic properties under sustained elevated-temperature service.
Suited to Thermally Stable, Optically Opaque Precision Components
Thermally stable optically opaque components in precision instrumentation benefit from this foil's unique combination of optical, magnetic, and thermal performance.
Industrial Applications
AISI 430 Stainless Steel Foil (Light Tight) is used across optical device, vacuum chamber, and precision instrumentation sectors where electromagnetic properties and optical isolation are simultaneously required:
- ✦ Light-Tight Enclosures & Linings for Optical Devices Requiring Magnetically Functional Shielding
- Used in light-tight enclosures and linings for optical devices requiring magnetically functional shielding, where this foil's unique combination of optical opacity and magnetic permeability is difficult to achieve in other alloy families.
- ✦ Vacuum Chamber Light Barriers Where Soft Magnetic Properties Are Operationally Relevant
- Applied as vacuum chamber light barriers where soft magnetic properties are operationally relevant, combining zero light transmission with the magnetic functionality of the 430 alloy system.
- ✦ Thermally Stable Optically Opaque Components in Precision Instrumentation
- Used in thermally stable optically opaque components in precision instrumentation, where high-temperature stability up to approximately 870 °C ensures reliable performance under sustained thermal exposure.
- ✦ Electromagnetic & Optical Isolation Research
- Supports experiments where both electromagnetic properties and optical isolation of the containment barrier are simultaneously required.
Tolerances
| Thickness | <0.01mm | ±25% |
|---|---|---|
| Thickness | 0.01mm - 0.05mm | ±15% |
| Thickness | >0.05mm | ±10% |
| Linear dimension | <100mm | ±1mm |
| Linear dimension | >=100mm | +2 / -1% |