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Mirror Stainless Steel Sheet | 8K, 10K, 12K, 14K Options

Sanmei Metal provides a full range of mirror-polished stainless steel sheets, from 8K (standard polish) to 12K (diamond-like brilliance) and 14K (hand-polished ultra-mirror). Each grade offers distinct surface clarity and reflectivity, allowing you to choose the perfect finish for your architectural, decorative, and appliance applications.

What make us stand out

Sanmei Metal's 8K Mirror vs. Typical 8K Sheets

Sanmei’s 8K mirror stainless steel sheet delivers premium visual clarity and surface consistency, achieved through advanced coil-to-coil polishing on cold-rolled 2B or BA substrates. Our sheets are widely used in architectural, decorative, and commercial interiors that demand not only aesthetics but also durability.

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Performance Comparison * Sanmei 8K Mirror vs Typical 8K Sheet
Feature Sanmei 8K Mirror Typical 8K Sheet What It Means
Gloss (20° GU) ≥1300 GU ≤1100 GU Brighter, sharper reflections
Surface Roughness (Ra) ≤0.02 μm 0.03–0.05 μm Smoother finish with minimal distortion
Base Material 200 / 300 / 400 Series (available) Mostly 200 Series Broader options for structural and decorative use
Process Route Coil-to-coil polishing from 2B/BA surface Sheet-based polishing Flatter, more consistent surface quality
Thickness Range 0.30–2.00 mm Usually ≤1.5 mm Suitable for both cladding and structural panels
10k 12k 14k

Also Available: Higher Gloss Mirror Finishes (10K / 12K / 14K)

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Sanmei also offers ultra high-gloss mirror finishes upon request, including:

Grade Specifications * Gloss level measured at 20° GU
Grade Gloss Level (20° GU) Recommended Applications
10K >1400 GU High-end interiors, luxury architectural panels
12K >1500 GU Precision optical components, high-clarity reflections
14K >1600 GU Art installations, ultra-premium décor, gallery walls
Mirror Finish Spectrum

Color Options for Polished Mirror Finish Stainless Steel Sheets

Nickel Silver Mirror Stainless Steel Sheet S26MR-01
S26MR-01
Nickel Silver
SELECT SPECIFICATION
Original Color Mirror Stainless Steel Sheet S26MR-02
Original Color 
S26MR-02
Zinc Gray Mirror Stainless Steel Sheet S26MR-03
Zinc Gray
S26MR-03
Black Champagne Gold Mirror Stainless Steel Sheet S26MR-05
Black Champagne Gold
S26MR-05
Grey Mirror Stainless Steel Sheet S26MR-10
Grey
S26MR-10
Water-plated Black Titanium Mirror Stainless Steel Sheet S26MR-13
Water-plated Black Titanium
S26MR-13
Know More→More Black finishes, all patterns→
Zirconium Mirror Stainless Steel Sheet S26MR-14
Zirconium
S26MR-14
Gray-mauve Mirror Stainless Steel Sheet S26MR-15
Gray-mauve
S26MR-15
Coffee Gold Mirror Stainless Steel Sheet S26MR-16
Coffee Gold
S26MR-16
Purple Mirror Stainless Steel Sheet S26MR-17
Purple
S26MR-17
Green Mirror Stainless Steel Sheet S26MR-18
Green
S26MR-18
Blue Mirror Stainless Steel Sheet S26MR-19
Blue
S26MR-19
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Product Details

Design & Patterns
Sizes & Grades
sanmei metal decorative stainless steel sheets
Different pattrens can match with different colors—click to see endless patterns and possibilities.
Explore ALL Catalog →

Standard Sizes & Thickness

Sheet Thickness
0.3mm – 3.0mm (30–11 Gauge)
Recommended Decorative Range
0.5mm – 2.0mm
Metric Sizes (Width x Length)
1000x2000, 1219x2438, 1219x3048, 1500x3000 mm
Imperial Sizes (Width x Length)
3.28x6.56, 4.00x8.00, 4.00x10.00, 4.92x9.84 ft
Coil Width Options
1000mm / 1219mm / 1500mm
Coil Weight Range
3–5 Tons (Custom Slitting Available)
Custom Sizing
Coil slitting & cut-to-length options available

Material & Processing Data

Substrate Options

AISI 201, 304, 304L, 316, 316L, 430

Base Surface Grain
Mirror polished
Coloring Methods

PVD Coating/ Water Plated

Standard Lead Time
7–10 Days (In Stock) / 25–30 Days (Custom)
Forward / Bulk Orders
30–45 Days
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Why project buyers work with Sanmei Metal

Material-driven, engineering-supported, execution-ready. One supplier from the mill to your site.
1

Source from leading partner mills

Base coil from Lisco, Tisco, Jisco, Posco PZSS, Yongjin and Hongwang, each batch with its Mill Test Report.
Our mill partners
2

Finish in-house

PVD, water plating and surface finishing under one roof at our Foshan facility.
Decorative finishes
3

Engineer and fabricate

Our engineers review drawings so profiles and panels can be made and installed.
Architectural metal works
4

Protect and ship

Film matched to laser cutting or stamping, and crates or steel frames packed for sea freight.
Packing and filming
Technical questions about grades, finishes or tolerances?
Technical guide

Our Leading Coating Technology.

Thicker coating, consistent color and easy-clean surfaces. Each one measured in our own production and compared with typical market product.
PVD coating

Thicker PVD coating

0.30µm
Typical coating thickness, up to 28% thicker than a typical market coil, so the color lasts longer.
See the coating test
Color control

Consistent color

ΔE ≤ 2
Every coil is held below the color difference the eye can see, so panels from different batches match.
See the color data
Anti-fingerprint

Fingerprint-resistant

215solvent rubs
Our anti-fingerprint coating withstood 215 rubs with a strong solvent. The standard requires 100. Typical market AF failed at 70.
See the AF test
Tested to GB/T and ISO standards, with MTR and SGS reports on request.
See all our quality control.

Documents you can check.

Every order ships with a Mill Test Report traced to its heat number, and SGS testing is available on request. These are real documents from our mill partners and our project work.
Certifications shown belong to Sanmei and its fabrication partners. Click a document to see it full size.

Tell us about your project.

Send a drawing, a reference photo or just the grade and size. Our team replies with material advice, finish options, samples and a quote.
What helps us answer fastest
Drawing, sketch or reference photo
Grade and thickness, if you know them
Finish or color you have in mind
Quantity and delivery location
Tell us about your project →
Samples and small batches are welcome.

Related Products

Contact us

Creating Center, Shunde District, Foshan City, Guangdong Province, 528315, China
+8615015653566 / 0757-87668353
Paige Deng
marketing@sanmeimetal.com

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    TEL: +8615015653566 / 0757-87668353
    Email: marketing@sanmeimetal.com

    Headquarters:
    Creating Center, No.142, Yuhe Road, Lecong Town, Shunde District, Foshan City, Guangdong Province, China. 528315

    Factory: Liyuan Logistics City, Chencun Town, Shunde District, Foshan City, Guangdong Province, China. 528313

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