0.04mm (40μm)
316L STAINLESS STEEL FOIL
Engineered with industry-leading cold-rolling technology, our 0.04mm 316L austenitic stainless steel foil delivers exceptional dimensional accuracy with thickness tolerances as tight as ±0.003mm.
Featuring low carbon content and molybdenum alloying, this grade provides superior intergranular and chloride corrosion resistance, excellent formability and stable mechanical properties even under high-temperature and harsh chemical conditions.





THICKNESS
0.04mm

WIDTH RANGE
2mm – 600mm

TOLERANCE
±0.003mm

SURFACE FINISH
2B / BA
PRODUCT FEATURES
With a bright, defect-free surface and uniform grain structure, the foil is optimized for precision etching, deep drawing and laser processing.

316L Austenitic Stainless Steel
Low carbon, molybdenum-enhanced for superior corrosion resistance.

High Purity & Low Carbon
Strict composition control ensures high purity and excellent stability.

Excellent Corrosion Resistance
Outstanding in resisting pitting, stress corrosion and oxidation.

High Cleanliness
Ultra-clean surface, ideal for critical and precision applications.

Uniform Thickness and Flatness
Tight thickness tolerance and excellent flatness for consistent performance.

Reliable & Repeatable Quality
Advanced process control for reliable and repeatable quality.
TECHNICAL SPECIFICATIONS
| Product | 316L Stainless Steel Foil | Hardness (HV) | 150 – 200 |
| Thickness | 0.04mm | Tensile Strength | ≥ 480 MPa |
| Thickness Tolerance | ±0.003mm | Elongation | ≥ 40% |
| Width Range | 2mm – 600mm | Yield Strength | ≥ 205 MPa |
| Surface Finish | 2B / 2D / BA | Temper Options | Soft, 1/2H, 3/4H, Full Hard |
| Material Standard | SUS 316L (EN 1.4404, ASTM A240) | Packaging | Clean paper + Wooden case |
WIDE RANGE OF APPLICATIONS

Semiconductor
Wafer carriers, sputtering targets, frames, and precision components.

New Energy Battery
Battery casing, tabs, current collectors, and energy storage systems.

Medical Devices
Surgical instruments, implant components, and ultra-thin precision parts.

Chemical Equipment
Corrosion-resistant liners, gaskets, diaphragms, and precision filters.

Aerospace
Lightweight structural parts, high-precision shims and thermal components.

Electronics & Electrical
Shielding, connectors, flexible circuits, and precision electronic components.
WHY CHOOSE ALTER 316L STAINLESS STEEL FOIL

Precision Manufacturing
Advanced rolling technology ensures thickness consistency and excellent flatness.

Strict Quality Control
From raw material to finished product, every step is rigorously inspected.

Custom Solutions Available
Custom thickness, width, surface finish and packaging to meet your needs.

Stable Supply Capacity
Flexible production schedule and large inventory to ensure on-time delivery.

Stable Service Support
Professional technical team and fast response to support your business.
NEED 0.04MM 316L STAINLESS STEEL FOIL?
Contact ALTER today for a competitive quote and professional solutions customized to your application needs.