0.04 mm 304 stainless steel foil
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0.04mm Thickness 304 Stainless Steel Foil - An Excellent Choice for Precision Manufacturing
As precision manufacturing enters the micron era, we are proud to present this 0.04mm thickness 304 stainless steel foil, which is like a lightweight elf in the metal world, perfectly integrating the toughness of stainless steel with the ultimate thinness.
- With its unique material and exquisite craftsmanship, this 304 stainless steel foil has a series of amazing properties. 304 stainless steel itself has excellent corrosion resistance, can remain stable in various complex environments, effectively resist the erosion of chemical substances, and ensure the long – term durability of the product.
- Although the thickness is only 0.04mm, it still maintains the due high strength of stainless steel, is not easy to break when subjected to external impact, and can withstand a certain pressure and tension. At the same time, its excellent flatness is also a major highlight. The surface of the foil is smooth and delicate, without wrinkles and defects, providing an excellent foundation for subsequent processing and application.
Advanced Metallurgy
- Low carbon content (≤0.08%) for enhanced weldability.
- High chromium-nickel ratio (18/8) for rust resistance in marine and chemical environments.
Certified Quality
- Compliant with GB/T 41608-2022 (China’s national standard for precision foil) and ASTM/ISO standards.
- Third-party testing (SGS) ensures chemical composition and mechanical properties.
0.04mm 304 Stainless Foil reference specification
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Parameter (Parameter)
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Details (Details)
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Standards/References
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|---|---|---|
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Grade
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304 (UNS S30400 / 1.4301)
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ASTM A240, GB/T 4237
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Thickness
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0.01 mm (±0.003 mm tolerance)
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Customizable
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Width
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2 mm – 150 mm
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Precision ±0.05 mm
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Surface Finish
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2B (Matte), BA (Bright Annealed), HL (Hairline), 8K Mirror
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Customizable
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Hardness
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Soft (ANN), 1/4H, 1/2H, 3/4H, H (via cold rolling)
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ASTM A666
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Tensile Strength
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≥480 MPa (Soft), ≥650 MPa (1/4H), ≥780 MPa (1/2H)
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ASTM A240
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Yield Strength
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≥205 MPa (Soft), ≥450 MPa (1/4H), ≥470 MPa (1/2H)
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ASTM A240
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Elongation
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≥40% (Soft), ≥6% (1/4H)
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ASTM A240
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Density
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7.93 g/cm³
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ISO 3505
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0.04mm 304 Stainless Foil Chemical Composition (wt.%)
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Grade
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C
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Si
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Mn
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P
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S
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Cr
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Ni
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N
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|---|---|---|---|---|---|---|---|---|
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304
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0.04mm 304 Stainless Foil Applications
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Application Field
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Specific Uses
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Key Features
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|---|---|---|
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Electronics
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- Circuit boards
- Connectors
- Flexible screens (e.g., foldable phones)
- Battery casings
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High electrical conductivity, corrosion resistance, and precision manufacturing
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Aerospace
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- Aircraft components
- Satellite parts
- Wing de-icing materials
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Lightweight, high strength-to-weight ratio, and extreme temperature resistance
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Medical Devices
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- Surgical instruments
- Implant housings
- Diagnostic equipment
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Biocompatibility, sterility, and durability
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Automotive
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- Fuel cells
- Exhaust systems
- Heat shields
- Electrical connectors
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Heat resistance, corrosion protection, and lightweight design
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Construction
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- Roofing materials
- Facades
- Interior decorations
- Waterproofing membranes
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Aesthetic appeal, weather resistance, and recyclability
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Energy Storage
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- Battery electrodes (e.g., lithium-ion)
- Solar panel components
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High conductivity, corrosion resistance, and energy efficiency
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Packaging
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- Insulation materials
- Food-safe wrappers
- Industrial packaging
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Non-reactive, tamper-proof, and moisture-resistant
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Textile & Machinery
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- Textile machinery parts
- Industrial filters
- Sealing gaskets
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Abrasion resistance, high-temperature stability, and precision
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Advanced Manufacturing
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- Flexible printed circuits
- MEMS (Micro-Electro-Mechanical Systems)
- Precision molds
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Ultra-thin formability, surface smoothness, and durability
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Advanced Manufacturing Processes
Our production facilities are equipped with state-of-the-art equipment and cutting-edge technologies that enable us to produce stainless steel strips with unparalleled precision.
Raw Materials: High-Quality Foundation Laying the Cornerstone of Quality
Partnering with leading steel producers like Tisco, we ensure a stable supply of high-quality raw materials for our manufacturing process.
These raw materials strictly control the composition ratio to ensure the precise content of key elements such as chromium and nickel, endowing the stainless steel strip with excellent corrosion resistance and mechanical properties in subsequent processing.
Cold Rolling: Plastic Deformation to Shape Precise Thickness
With high-precision cold rolling equipment, the stainless steel is rolled at room temperature.
Through the pressure of the rolling mill rolls, the material undergoes plastic deformation, gradually rolling the thickness to the target size.
This step not only compresses the thickness but also refines the internal grains, improving the material strength and surface flatness, laying a solid foundation for subsequent processing.
Bright Annealing: Optimizing Structure to Endow a Bright Surface
Bright annealing is a key process for improving the quality of precision stainless steel strips.
Its main purpose is to eliminate the internal stresses and work hardening caused by cold rolling, improve the strip’s microstructure and mechanical properties, and obtain a bright surface.
The bright annealing process is carried out in a bright annealing furnace, which provides a protective atmosphere to prevent oxidation of the strip during heating.
Degreasing: Removing Impurities to Restore a Pure Surface
After cold rolling, the surface of the strip will retain impurities such as rolling oil and iron filings.
The cleaning process uses professional degreasers and cleaning techniques. Through processes such as spraying, brushing, and rinsing, oil and debris are thoroughly removed, restoring the stainless steel strip’s surface to purity.
A clean surface is a key prerequisite for ensuring the effect of subsequent heat treatment and improving the product’s appearance and performance.
Tension Leveling: Precise Shaping to Eliminate Shape Defects
Leveling is an important process for improving the flatness of precision stainless steel strips.
During cold rolling and annealing, the strip may develop defects such as warping and waves, which affect its dimensional accuracy and usage performance.
The leveling process uses a leveling machine to apply appropriate bending and stretching to the strip, correcting its shape and improving its flatness.
Precision Slitting: Custom Cutting to Meet Diverse Needs
With high-precision slitting equipment, the strip is cut into narrow strips of different widths.
The slitting process strictly controls the cutting accuracy to ensure smooth cuts without burrs, making the width tolerance of each narrow strip extremely small to meet the diversified needs of industries such as electronics and precision machinery for different specifications.
Edge condition: Fine Processing to Improve Edge Quality
Edging is a crucial step following slitting.
During slitting, the edges of the strips may become rough or produce burrs, which affect the surface quality and usage performance of the precision stainless steel strips.
The edging process uses specialized edging equipment to grind and polish the edges of the strips, achieving smooth and burr – free edges.
Cutting into Sheets: Custom Sizing for Ready-to-Use Finished Products
Cutting is the process of cutting the precision stainless steel strips to the desired length according to customer requirements.
Common cutting methods include shear cutting and laser cutting.
Shear cutting is a mechanical cutting method that uses shears to cut the strip into specified lengths. Its advantages include high cutting speed and low cost.
Packaging: Protective Transportation to Ensure Quality Delivery
Packaging is the final step in the production of precision stainless steel strips.
Its primary purpose is to protect the strips from damage, corrosion and contamination during transportation and storage.
The packaging process involves cleaning the strips’ surfaces, applying protective films, wrapping with packaging materials and securing with strapping or pallets.
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