0.05mm (50μm)
321 STAINLESS STEEL FOIL
0.05mm 321 stainless steel foil provides robust structural stability and premium high‑temperature performance for industrial shielding, heat exchangers, and welded thin assemblies.
Boasting precise dimensional control, good mechanical strength, and superior weldability, this 0.05mm precision foil is widely used in petrochemical components, furnace linings, and precision instrumentation where durability and thermal stability are critical.
0.05mm 321 Stainless Steel Foil
321 stainless steel foil (0.05mm) is a titanium-stabilized austenitic stainless steel that offers excellent resistance to intergranular corrosion and oxidation at elevated temperatures. The 0.05mm thickness provides enhanced mechanical support and dimensional stability, making it ideal for high-performance applications that require strength, durability, and precision.
Specifications Overview
Technical Specifications Table
| Product Name | 321 Stainless Steel Foil | Temper Options | Annealed, Full Hard |
| Thickness | 0.05mm (±0.003mm tolerance) | Edge Condition | Slit Edge / Deburred Edge |
| Material Grade | SUS 321 / AISI 321 | Coil ID | 200/300mm |
| Chemistry % | C≤0.08 Si≤1.00 Mn≤2.00 P≤0.045 S ≤0.030 Cr17.00–19.00 Ni 9.00–13.00 Ti≥5×C | Packaging | Clean paper + export wooden case |
| Width Range | 2-1000mm | Surface Finish | 2B / 2D / BA |
0.05mm 321 Stainless Steel Foil Highlights
Better Structural Support
Provides enhanced mechanical strength for precision components.
Heat-Resistant Grade
Maintains stability and oxidation resistance at high temperatures.
Good Formability
Excellent ductility for stamping, bending, and shaping.
Clean Surface Quality
Smooth, bright surface ensures better appearance and processing.
Stable Performance
Resists intergranular corrosion and ensures long-term reliability.
Wide Industrial Use
Suitable for multiple industries and demanding applications.
TYPICAL APPLICATIONS
Automotive Heat-Resistant Parts
Used in exhaust systems, heat shields, and other high-temperature components.
Aerospace Components
Ideal for structural and heat-resistant parts requiring stability and strength.
Thermal Insulation & Shielding
Used in insulation blankets, heat barriers, and radiation shielding applications.
Chemical & Industrial Equipment
Resistant to corrosion and oxidation in chemical processing and industrial systems.
Precision Stamping & Forming
Perfect for precision components that require strength, accuracy, and durability.
WHY CHOOSE ALTER 0.05MM 321 STAINLESS STEEL FOIL?
- Stronger mechanical support with 0.05mm thickness for demanding environments.
- Stable and consistent processing with excellent dimensional accuracy.
- Good formability and workability for precision manufacturing.
- Excellent corrosion and oxidation resistance at high temperatures.
- Ideal for heavy-duty, precision, and heat-related industrial applications.
Manufacturing Process
01Raw Material
Inspection
02Precision
Cold Rolling
03Thickness
Control
04Annealing
Treatment
05Slitting & Edge
Control
06Surface
Inspection
07Mechanical
Testing
08Protective
Packaging
QUALITY ASSURANCE
At ALTER, quality is at the core of our manufacturing. Our 0.05mm 321 stainless steel foil is produced under stringent quality control systems to ensure superior performance, reliability, and customer satisfaction.
- Strict raw material inspection
- Advanced production & testing equipment
- Dimensional accuracy & surface quality control
- Mechanical & chemical property verification
- Traceability for every production lot
