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Aged Bronze Metal Sheet

Aged bronze stainless steel captures the darkened, weathered character bronze takes on with age — rooted in warm brown tones, with variations ranging from near-black to rust-mottled or mossy patina effects, depending on how far the oxidation is taken. The base material is stainless steel, not solid bronze. We supply this finish across grades 201, 304, 316 and 430.

How the Aged Effect Is Made

The process starts with a base surface texture — hairline, mirror, vibration, embossed, or etched — then goes through PVD coating or water plating to build the bronze tone. Oxidation is worked into this stage unevenly on purpose: recesses darken further, raised areas stay lighter, and the surface ends up with the kind of tonal drift bronze picks up naturally rather than a single flat color.

The extent of this process sets the final character. At its core, aged bronze stays rooted in warm brown tones — but depending on how the oxidation is pushed, it can shift toward a near-black charcoal finish, a softer rose-copper undertone, or a more dramatic mottled effect with rust-orange or mossy green-gold patina. Because this is a range built from the same base process, we can match it to a specific reference or sample.

Antique Bronze Metal Sheets in Sanmei Metal

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    Surface Textures of Aged Bronze Panels

    The aged bronze effect sits on two categories of base surface — flat mechanical finishes and raised relief textures. Each one interacts with light differently once the coloring is applied.

    Flat Finishes — Hairline, Vibration

    These finishes carry the wear bronze accumulates through handling and time. Hairline and vibration use fine directional or non-directional scratching to echo the scuffing a bronze surface picks up over years of contact. 

    Raised Textures — Embossed, Etched

    These add physical depth rather than just surface color. Embossed and etched textures reproduce the pitting and surface breakdown that bronze develops over long exposure — the raised and recessed areas take the coloring differently, so the aged look comes from the texture itself, not a layer sitting on top of it.

    Product Details

    Design & Patterns
    Sizes & Grades
    Antique Finish Stainless Steel Sheets
    See more antique finishes: Copper, Bronze & Copper Green →
    Explore ALL Aged Finish→

    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

    Surface
    Aged Finish
    Coloring Methods
    Standard Lead Time
    7–10 Days (In Stock) / 25–30 Days (Custom)
    Forward / Bulk Orders
    30–45 Days
    Request for Samples

    Cut to Size & Custom Aging

    Every aged bronze sheet is cut to your project's dimensions. The oxidation depth, coloring, and hand-applied mottling can be adjusted on request — giving you control over how light, dark, or heavily weathered the surface reads.

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    Application

    Aged bronze reads as a heavier, more grounded material than brass, which makes it a strong fit for spaces built around depth and material weight rather than brightness.

    Wall & Facade Applications:

    • Feature walls
    • Decorative wall panels
    • Accent walls
    • Architectural cladding
    • Storefront facades

    Beyond large-format cladding, aged bronze also works as an accent surface in spaces leaning into an industrial or old-world character:

    Countertop & Functional Panel Applications:

    • Custom kitchen backsplashes
    • Kitchen countertops
    • Stair railings
    • Bar countertops
    • Counter panels

    Our aged bronze sheet metal can be bent or punched to match your project's mounting requirements.

    Tell Us Your Project
    Dark bronze fine etched stainless steel cabinet and wardrobe door panels

    See Aged Metal Finish in Real Projects

    From facades to ceilings, decorative panels, and cabinetry — see how our aged metal finishes look once installed.

    View Project Cases →

    Want a lighter bronze color finish?

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    bronze stainless steel

    About the Aged Bronze Process

    Stainless steel starts as a grey-silver base. Different combinations of polishing and oxidation coloring produce different depths of bronze tone and surface character on that same base — which means every aged bronze sheet comes out as a one-of-a-kind result.

    Our production process:

    1. Start with the customer's specified stainless steel grade (201 / 304 / 316 / 430) as the base

    2. Apply oxidation coloring to build the bronze tone

    3. Create the aged texture using one of two methods:
      • Etching — builds a raised, tactile pattern beneath the patina for genuine dimensional depth
      • Standard process — produces a flat, weathered patina on the surface

    4. Hand-finish the surface to refine the mottled, aged character

    5. Apply a protective clear coat to lock in the finish and slow further oxidation

    FAQS

    Is an aged bronze panel made of solid bronze?

    No. The base material is stainless steel (201/304/316/430); the bronze appearance comes from an oxidation coloring process and hand-applied aging technique on the surface. This gives you the aged bronze look with the corrosion resistance and durability of stainless steel.

    How is an aged bronze panel installed?

    Aged bronze sheets can be installed using screw fixing or adhesive bonding, depending on the application. Handle with clean gloves during transport to avoid fingerprints and uneven oxidation, and avoid dropping or impacting panels to protect the finish. Contact our team for help with installation methods or sizing.

    What can damage the protective coating?

    The clear coat can wear from harsh chemicals, frequent cleaning, prolonged heat exposure, or improper handling. Careful daily use extends panel life, and the coating can be reapplied if it shows wear.

    How do I clean an aged bronze sheet?

    Most panels need only minimal routine care. Clean with warm soapy water and a microfiber cloth — no additional maintenance is required.

    How do you keep the pattern consistent across a large installation?

    We match the pattern to your project drawings, or build a rendering based on the actual surface you're installing on before production. This lets us plan how the mottling and tonal variation should flow across multiple panels, so the finished wall or cladding reads as one coordinated surface rather than mismatched individual sheets.

    Why project buyers work with Sanmei.

    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

    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
    Quantity and delivery location
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    Samples and small batches are welcome.

    Contact us

    Creating Center, Shunde District, Foshan City, Guangdong Province, 528315, China

      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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      Hello! Tell us what stainless steel product or finish you're interested in — or let us know if you'd like to start with a sample. We'll get back to you shortly.