Annealed 316L Stainless Steel Foil, 2B Surface Finish

If you are looking for annealed 316L stainless steel foil (2B surface finish) with excellent corrosion resistance, superior formability, and consistent quality, we can provide the precise product your project requires. We specialize in precision-rolled and annealed 316L stainless steel foil, designed for applications with extremely high demands on surface quality, thickness accuracy, and reliable delivery.

 

What is annealed 316L stainless steel foil with a 2B surface finish?

Annealed 316L stainless steel foil with a 2B finish is a thin-gauge (foil) alloy, highly resistant to corrosion and chloride pitting, featuring a smooth, moderately reflective surface. The "L" indicates low carbon for superior weldability, while the "2B" finish is achieved through cold rolling, annealing, pickling, and a final light pass with polished rollers, resulting in a matte gray, hygienic, and non-reflective appearance.

 

 

Annealed 316L Stainless Steel Foil Specification

Item	Specification
Material Grade	AISI 316L / EN 1.4404
Delivery Condition	Annealed
Surface Finish	2B
Thickness Range	0.02 mm – 0.50 mm
Width Range	10 mm – 600 mm (customizable)
Supply Form	Coil or cut sheets
Standards	ASTM A240 / EN 10088 / JIS G4305
Processing Services	Slitting, cutting, polishing, custom packaging

 

Stainless Steel 316L Foil Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
SS 316L	0.035 max	2.00 max	1.00 max	0.045 max	1.0 max	16.00-18.00	2.0 -3.0	10.0 - 14.0	68.89 min

 

Stainless Steel 316L Foil Physical Properties

Properties	Metric	Imperial
Density	7.86 g/cm3	0.284 lb/in³

 

316L Stainless Steel Foil Production Process

316L stainless steel foil (0.02mm–1.0mm thickness) is produced by reducing hot-rolled, annealed stainless steel coils through multiple precision cold-rolling passes to achieve desired thickness and surface finish. Key steps include intermittent annealing to restore ductility, degreasing, tension leveling, and final slitting into narrow coils, often involving lubrication to manage heat.

Typical Applications of 316L Stainless Steel Foil

Medical devices: implants, surgical components, sensors

Electronics: battery components, shielding materials, connectors

Chemical industry: diaphragms, corrosion-resistant liners

Precision stamping & etching: micro parts, filters

Food & pharmaceutical equipment: hygienic and corrosion-resistant part

 

Delivery Time Reference

Order Type	Lead Time
Stock items	5–7 working days
Custom specifications	10–15 working days
Large volume orders	15–25 working days

Packaging & Transportation

Packaging Type	Description
Inner Packing	Moisture-proof paper + PE film
Outer Packing	Wooden case or pallet
Coil Protection	Edge guards & scratch protection
Labeling	Grade, size, heat number clearly marked

 

Contact us today for pricing, inventory, and sample information.

 

FAQ

Q1: Is annealed 316L stainless steel foil suitable for stamping and forming?
A: Yes. The annealed condition significantly improves ductility and reduces cracking during forming.

Q2: What is the advantage of 2B surface finish?
A: 2B finish provides a smooth, uniform surface suitable for direct use or further fabrication.

Q3: Can you supply small quantities or samples?
A: Yes. Samples and small trial orders are available upon request.

Q4: Can thickness and width be customized?
A: Absolutely. Custom dimensions are supported based on your application needs.