Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of Polished 316 Stainless Steel Sheet Supplier | Mirror / No.4 / HL Finish in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Polished 316 stainless steel sheet is a high-performance corrosion-resistant material widely used in marine, chemical, food processing, and architectural industries. Compared with 304 grade, 316 stainless steel contains molybdenum, offering superior resistance in chloride environments such as seawater.
We are a professional 316 stainless steel sheet supplier, providing mirror (8K), brushed (No.4), and hairline finishes with custom sizes and global export support.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
316 Stainless Steel Sheet Specifications
| Item | Specification |
|---|---|
| Grade | 316 / 316L |
| Standard | ASTM A240 / EN 1.4401 |
| Thickness | 0.1 – 6 mm (0.004" – 0.24") |
| Width | 100 – 2000 mm (3.9" – 78.7") |
| Length | 1000 – 6000 mm (39" – 236") |
| Surface Finish | 2B / BA / No.4 / HL / Mirror (8K) |
| Density | 7.98 – 8.03 g/cm³ |
| MOQ | 1 Ton |
| Delivery Time | 7–15 Days |
316 Stainless Steel Sheet Price (2026)
The price of 316 stainless steel sheet typically ranges from:
👉 $2,800 – $4,500 per ton
Factors affecting price:
Thickness and size
Surface finish (mirror is higher)
Order quantity
Nickel market fluctuation
👉 Contact us now for the latest factory price.
316 vs 304 Stainless Steel Sheet
| Feature | 316 Stainless Steel | 304 Stainless Steel |
|---|---|---|
| Corrosion Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ |
| Marine Environment | Excellent | Limited |
| Chemical Resistance | Strong | Moderate |
| Price | Higher | Lower |
👉 316 is the best choice for marine and chemical applications.
Available Specifications
| Item | Metric Size | Imperial Size | Tolerance |
|---|---|---|---|
| Thickness | 0.30–6.0 mm | 0.012"–0.236" | ±0.02–0.08 mm |
| Width | 1000 / 1219 / 1250 / 1500 mm | 39" / 48" / 50" / 60" | ±2 mm |
| Length | 2000 / 2438 / 3000 / 4000 mm | 79" / 96" / 118" / 157" | ±3 mm |
| Coil Inner Diameter | 508 mm | 20" | - |
| Protection Film | PVC / Laser Film / PE | - | - |
Surface Finish Options
| Finish | Roughness (Ra) | Description | Applications |
|---|---|---|---|
| No.4 | ~0.2–0.4 μm | Brushed satin | Elevators, appliances |
| Hairline (HL) | ~0.1–0.2 μm | Long continuous lines | Architectural decoration |
| BA (Bright Annealed) | ~0.05–0.10 μm | Bright, reflective | Kitchen, medical |
| Mirror 8K | <0.05 μm | Super mirror | Interior, high-end decoration |
Chemical Composition (Typical, %) – 316 / 316L
| Element | 316 | 316L |
|---|---|---|
| C | ≤0.08 | ≤0.03 |
| Mn | ≤2.00 | ≤2.00 |
| Si | ≤1.00 | ≤1.00 |
| P | ≤0.045 | ≤0.045 |
| S | ≤0.03 | ≤0.03 |
| Cr | 16.0–18.0 | 16.0–18.0 |
| Ni | 10.0–14.0 | 10.0–14.0 |
| Mo | 2.0–3.0 | 2.0–3.0 |
Mechanical Properties
| Property | 316 | 316L |
|---|---|---|
| Tensile Strength (MPa) | ≥515 | ≥485 |
| Yield Strength (MPa) | ≥205 | ≥170 |
| Elongation (%) | ≥40 | ≥40 |
| Hardness (HB) | ≤217 | ≤217 |
Product Features
Superior Corrosion Resistance: Excellent resistance to chlorides, acids, and seawater compared to 304.
Mirror / Decorative Surface: Highly reflective 8K finish for architectural use.
Durable & Hygienic: Ideal for food, medical, and clean-room applications.
Non-Magnetic After Annealing: Suitable for sensitive electronic environments.
Easy to Fabricate: Compatible with laser cutting, bending, polishing, and welding.
Applications of 316 Stainless Steel Sheet
⚓ Marine Industry
Used for shipbuilding, offshore platforms, and coastal structures due to excellent seawater resistance.
⚗ Chemical Industry
Widely used in storage tanks, pipelines, and reactors requiring corrosion resistance.
🏗 Architectural Decoration
Mirror and brushed finishes are ideal for elevators, wall panels, and facades.
🍽 Food Processing
Suitable for kitchen equipment, storage tanks, and hygienic environments.
🏥 Medical Equipment
Used in surgical tools and cleanroom surfaces.
Our Manufacturing Capability
20,000 tons annual production capacity
Advanced rolling and polishing lines
Full OEM & custom processing available
Exported to 50+ countries
ISO 9001 certified manufacturer
👉 We are a direct factory supplier, ensuring competitive pricing and stable quality?
For prices, surface samples, or custom polished 316 stainless steel sheet solutions
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
Inspection & Quality Assurance
Strict surface inspection: mirror clarity, scratch-free verification.
Thickness, flatness, and diagonal tolerance measurement.
Mechanical testing: tensile, hardness, elongation.
Corrosion resistance testing (salt spray, chemical immersion).
100% film protection for polished surfaces.
MTC provided according to EN 10204 3.1 / 3.2.
Third-party inspection from SGS / BV / TUV available.
Raw material PMI testing
FAQ
1. What is the difference between No.4, Hairline, BA, and Mirror 8K finishing for 316 stainless steel sheets?
No.4: Satin polishing with short, uniform lines; widely used for kitchen appliances and elevators.
Hairline (HL): Long, continuous brushing lines; mainly for architectural and decorative cladding.
BA (Bright Annealed): Smooth, bright, reflective finish produced in a controlled atmosphere.
Mirror 8K: Ultra-reflective surface achieved through multi-stage mechanical polishing; used in luxury decoration and interior design.
2. Is 316 or 316L better for polished surface applications?
316L is preferred for projects requiring welding or corrosion-critical environments, because its low carbon content avoids carbide precipitation.
316 offers similar surface quality but slightly higher strength.
3. What protective film do you apply to polished stainless steel sheets?
We offer:
PVC Film (standard)
Laser Film (for laser cutting)
Anti-scratch reinforcement film
Black & White PE Film (for deep drawing applications)
All polished sheets are supplied with film to prevent scratches during processing and transportation.
4. Can polished 316 stainless steel sheet be used in marine or coastal environments?
Yes. 316/316L contains 2–3% Mo, which significantly improves chloride corrosion resistance.
For severe seawater or splash zones, BA or Mirror finishes may require regular cleaning to maintain appearance.
5. What is the maximum available thickness for polished 316 stainless steel sheets?
Mirror 8K: Typically 0.3–3.0 mm
HL / No.4: 0.4–6.0 mm
BA: 0.4–2.0 mm
Custom polishing for thicker plates (6–10mm) is available with MOQ.
6. Do you provide customized surface roughness (Ra)?
Yes. We can achieve specific Ra targets such as 0.05 μm, 0.1 μm, 0.2 μm, depending on the finish type.
Certification with surface roughness testing can be provided upon request.
7. Can polished 316 stainless steel sheet be cut or formed after polishing?
Yes, but the following should be noted:
Laser film is recommended for laser cutting.
Sharp bends may require pre-polishing or re-polishing on edges.
Mirror surfaces should be protected with anti-scratch film.
We also offer full CNC processing: laser cutting, bending, stamping, perforation.
8. Do polished surfaces affect corrosion performance?
Generally, polished surfaces improve corrosion resistance because smoother surfaces reduce crevice sites where chlorides accumulate.
Mirror 8K and BA have the best corrosion resistance among polished finishes.
9. What certifications and testing reports can you provide?
We supply:
MTC – EN 10204 3.1 / 3.2
Surface inspection report
Thickness and flatness report
Salt spray or corrosion test report
PMI (Positive Material Identification)
Third-party inspection (SGS / TUV / BV) is available.
10. What is your typical production lead time?
Standard sizes: 7–10 days
Custom polishing: 12–18 days
PVD-colored or patterned polishing: 15–25 days
Urgent orders can be negotiated depending on stock.
11. What packaging options do you offer for polished sheets?
Waterproof paper + foam protection
Double-layer PVC film
Seaworthy wooden pallet / wooden crate
Edge protectors for mirror surfaces
All packaging complies with export standards for long-distance shipping.
12. Do you offer PVD color coating on polished 316 stainless steel sheets?
Yes. Available colors: Black, Gold, Rose Gold, Bronze, Champagne, Silver, Blue Titanium, etc.
Coatings have high wear resistance and uniform tone.
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