Description
xBrass Flat Bar
Solid rectangular brass flat bar and brass flat stock with a wide, flat face — measured width × thickness and supplied in straight lengths or cut to length for brackets, trim, rails, frames and bus bars.
Solid Flat Stock
Rectangular Bar
Width × Thickness
Straight or Cut Lengths
Clean Machinable Finish
What Is Brass Flat Bar?
Definition and Overview
Brass flat bar is a solid, straight metal bar with a rectangular cross-section — a wide, flat face that is noticeably wider than it is thick. It is produced by extrusion or drawing and is one of the most versatile brass profiles for fabrication. In trade language it is also called brass rectangular bar, brass rectangle bar, brass flat, brass flats, brass flat stock or rectangular brass rod.
Metal Supermarkets defines flat bar and rectangular bar as the same product, measured first by width and then by thickness. Unlike thin brass strip, which can be coiled, brass flat bar is a thicker, rigid, straight section chosen whenever a part needs stiffness, a flat mounting face or clean machined edges. It machines, drills, punches, bends, brazes and polishes reliably, with the warm golden look brass is known for.
Key Characteristics of Brass Flat Bar
- Wide flat face: the rectangular section gives a stable surface for mounting, bonding, laminating and surface-mounted hardware.
- Good machinability: brass flat stock mills, drills, punches and taps cleanly with low tool wear.
- Bendable and formable: in softer tempers the flat brass bar bends into brackets, frames and curved trim.
- Natural corrosion resistance: copper-based brass flat bar does not rust in normal atmosphere and holds up outdoors.
- Attractive finish: brushed or polished rectangular brass bar delivers a premium decorative surface.
- Useful conductivity: solid brass flat stock serves as compact bus bars, connectors and grounding strips.
Why Choose Brass Flat Bar?
Rectangular brass flat bar combines a rigid flat section with easy fabrication and a classic brass finish, making it equally useful for structural and visible parts.
Easy to Machine
Brass flat stock mills, drills and punches cleanly for brackets, plates and precision hardware.
Corrosion Resistant
Flat brass bar resists rust and moisture indoors and in sheltered outdoor use.
Decorative Face
The broad face polishes or brushes beautifully for trim, inlay and furniture metalwork.
Stable & Rigid
A solid rectangular section stays flat and supports loads without twisting.
Conductive
Brass flat bar makes neat bus bars, terminal strips and grounding connectors.
Hygienic Surface
The copper-based surface naturally limits microbial build-up on touch hardware.
Formable
Soft flat brass bar bends, folds and forms into brackets, frames and hooks.
Recyclable
Brass flat stock is fully recyclable without losing its properties.
Brass Flat Bar Sizes, Edges, Tempers & Finishes
Brass flat bar is specified by width and thickness, supplied in straight lengths and cut to length on request.
Standard Size Range
| Product | Dimension | Lengths | Custom Cutting |
|---|---|---|---|
| Brass Flat Bar / Rectangular Bar | Width × thickness, in a range of metric and inch sizes | 1 ft, 3 ft, 6 ft, 12 ft straight lengths | Yes — cut to your length |
Edge Types
Brass flat bar is offered with sharp (square) corners for a crisp look and precise fit, or radius (rounded) corners where a smoother edge or safer handling is required — specify the edge style when ordering.
Tempers
Soft flat brass bar bends and forms most easily, half-hard is the balanced default for brackets and general fabrication, and hard flat stock gives the stiffest result for straight rails and load-bearing strips.
Surface Finishes
As-Drawn / Mill
Standard smooth mill finish, uniform and ready for machining or further finishing.
Polished
Mirror-bright polished rectangular brass bar for visible trim and decorative parts.
Brushed / Satin
Directional brushed finish that hides fingerprints and gives a modern, even look.
Typical Material Properties
- Density: approximately 8.4–8.5 g/cm³ for typical brass.
- Melting range: approximately 900–940°C (1650–1720°F).
- Electrical conductivity: roughly 25–45% IACS depending on composition.
- Thermal conductivity: roughly 80–120 W/(m·K) at room temperature.
- Forming behaviour: soft to half-hard tempers bend best; hard stock stays rigid and straight.
Round, square and hex brass bar are available separately; brass flat bar is the rectangular, width-and-thickness form covered on this page.
Machining & Fabrication with Brass Flat Bar
The broad, flat section of brass flat stock is easy to machine, punch, bend and join — a favourite for brackets, trim and electrical strips.
How Brass Flat Bar Is Worked
Rectangular brass bar mills and drills cleanly, punches holes and slots without cracking, and taps neat threads. In softer tempers it bends on a press brake or bender into brackets, frames, rings and edging; it solders and brazes into strong, tidy joints and polishes to a high shine after forming.
Working Tips for Brass Flat Stock
- Specify width × thickness clearly so the flat face is oriented the way the part needs it.
- Choose soft temper for tight bends and half-hard or hard for straight, load-bearing strips.
- Use sharp tooling for clean edges and a bright finish on rectangular brass bar.
- Support the wide face when milling thin flat stock to avoid chatter.
- Prefer brazing or soldering for the cleanest joints in brass flat bar.
Common Fabricated Forms
Brackets and L-angles, mounting and base plates, guide rails and tracks, decorative trim and inlay, bus bars and terminal strips, hooks, handles, frame edging and furniture metalwork all begin as brass flat bar.
Applications of Brass Flat Bar
Brass flat bar is used wherever a rigid rectangular strip with a clean, attractive face is needed. Below are its main applications.
Brackets & Supports
L-brackets, mounting brackets, braces and support plates bent or machined from brass flat stock.
Rails & Tracks
Guide rails, sliding tracks, edging and wear strips that need a straight, rigid flat section.
Trim & Inlay
Decorative edge trim, banding, inlay strips and border detail in polished flat brass bar.
Bus Bars & Electrical
Compact brass bus bars, terminal strips, connector bars and grounding links drilled and bent to shape.
Frames & Braces
Picture and cabinet frames, structural braces and reinforcing strips in rectangular brass bar.
Hardware & Hinges
Hinge leaves, hasps, catches, plates and door hardware cut from solid brass flat stock.
Nameplates & Plaques
Engraved plates, plaques and signs using the smooth wide face of flat brass bar.
Marine & Outdoor
Boat trim, outdoor edging and exterior hardware that rely on brass's corrosion resistance.
Furniture & Handrails
Furniture bands, foot rails, flat handrail sections and ornamental metalwork in brass finish.
How Brass Flat Bar Is Made
Brass flat bar follows a controlled process to deliver a straight, uniform rectangular section.
1
Melting
Copper and zinc are melted and blended to the target brass composition.
2
Casting Billets
The brass is cast into solid billets ready for hot forming.
3
Extrusion
Billets are extruded through rectangular dies to form the flat brass profile.
4
Cold Drawing
The flat bar is drawn to final width, thickness and a smooth surface.
5
Inspect & Cut
Each brass flat is straightened, checked and cut to standard or custom length.
Quality Control at Every Stage
In-Process and Final Checks
Width, thickness, straightness, edge condition and surface are monitored throughout production, and each finished brass flat bar receives a final check of dimensions, length and finish before cutting and packaging, so every length of rectangular brass stock leaves in consistent condition.
Value-Added Services for Brass Flat Bar
Beyond raw brass flat bar, secondary processing delivers pieces ready for assembly.
Cut to Length
Brass flat bar cut to your exact length as ready-to-use pieces, reducing scrap.
Milling & Drilling
Machining, hole drilling and slotting of brass flat stock to drawing.
Punching
Punched holes and cut-outs in rectangular brass bar for brackets and plates.
Bending & Forming
Flat brass bar bent into brackets, angles, frames, rings and edging.
Polishing
Buffing, polishing and satin finishing of the wide brass face.
Custom Packaging
Bundled, wrapped or crated flat brass bar with clear labeling.
Quality Assurance for Brass Flat Bar
Our Commitment
Every length of brass flat bar is backed by consistent process controls from incoming stock to final shipment. Rectangular brass bar is drawn from reputable mills and kept fully traceable, so the flat stock you receive performs repeatably in fabrication and machining.
Documentation
Brass flat bar can be supplied with certificates of compliance and material test reports for composition and properties, supporting traceability and standard conformance for your quality records.
Checks Performed
- Compositional verification of the brass
- Width and thickness inspection of each flat
- Straightness check over the full bar length
- Edge condition (sharp or radius) inspection
- Surface quality and finish inspection
- Length verification on cut-to-length stock
- Temper confirmation for bending or rigidity
- Packaging integrity before dispatch
Packaging, Shipping & Returns
Secure Packaging
- Bundled flats: multiple brass flat bars banded with edge protection to prevent scuffing.
- Individual wrapping: polished or decorative rectangular brass bar is wrapped to protect the face.
- Wooden crating: long or heavy brass flat stock is braced in crates for safe transit.
- Clear labeling: each pack is marked with width, thickness, length, temper and quantity.
Shipping & Delivery Time
Processing: in-stock standard brass flat bar orders are dispatched within 1–5 business days. Custom-cut or made-to-order flat stock needs extra processing time that increases with fabrication difficulty.
Transit: after the order ships, delivery normally takes 7–15 days.
Custom Order Returns
Custom brass flat bar is cut or processed to your exact dimensions. Once cutting or fabrication has started, a custom order cannot be cancelled, returned or exchanged — please confirm width, thickness, edge type, temper and length before ordering.
Frequently Asked Questions About Brass Flat Bar
What is brass flat bar used for?
Brass flat bar is used for brackets and supports, guide rails and tracks, decorative trim and inlay, bus bars and electrical strips, frames, hinges, nameplates, furniture metalwork and outdoor or marine hardware. Its wide flat face and easy fabrication make it one of the most used rectangular brass profiles.
Is flat bar the same as rectangular bar?
Yes. Brass flat bar and brass rectangular bar (also written brass rectangle bar) describe the same solid rectangular section, measured by width and then thickness. Brass flat, brass flats and brass flat stock are further common names for the same material.
How is brass flat bar measured?
It is specified by width × thickness × length — for example a wide flat face with a thinner section — in millimetres or inches. This differs from round bar (diameter) and square or hex bar (across flats).
Sharp corner or radius corner?
Choose sharp (square) corners for a crisp edge and precise fit in brackets and trim, or radius (rounded) corners for smoother handling and a softer look. Both edge styles are available on brass flat bar.
Can brass flat bar be cut to length?
Yes. Rectangular brass bar is supplied in standard straight lengths and can be cut to your exact length as ready-to-use pieces, saving scrap and setup time.
Can brass flat bar be bent?
Yes, especially in soft or half-hard temper. Flat brass bar bends on a press brake or bender into brackets, angles, frames and curved trim; use a suitable bend radius to protect the outer face.
What is the difference between brass flat bar and brass strip?
Brass flat bar is a thicker, rigid, straight section used for strength and structure. Brass strip is thinner rolled material that may be coiled. When you need a stiff straight bar, choose flat bar; choose strip for thin, narrow or coiled material.
Can brass flat bar be used as a bus bar?
Yes. Solid rectangular brass flat stock is commonly drilled and bent into compact bus bars, terminal strips, connector bars and grounding links where moderate conductivity and a rigid flat form are needed.
Is brass flat bar suitable outdoors?
Yes. Brass flat bar resists atmospheric and moisture corrosion and does not rust. A clear lacquer helps preserve a polished finish in long-term outdoor or marine-adjacent settings.
What is the difference between brass and bronze flat bar?
Brass flat bar is copper-zinc based, easy to machine and form, bright golden and lower cost. Bronze flat bar is copper-tin based, generally harder and more wear-resistant but pricier and less free-forming. Select by the application.
Can brass flat bar be welded or soldered?
Brass flat stock solders and brazes very cleanly, which is the preferred joining method. Fusion welding is possible but needs care because of the zinc content at high temperature.
Are material test reports available?
Yes. Material test reports and certificates of compliance can be provided with brass flat bar orders for composition, properties and traceability in your quality records.
Shipping & Return
xReturns Policy
You may return items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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