Aluminum Flat / Rectangular Bar
Aluminum flat bar, also known as rectangular bar, is one of the most common profiles, featuring a rectangular cross-sectional profile, uniform thickness along the length, and a flat surface. Their simple geometry makes them extremely easy to cut, drill, bend, weld, and machine. They are characterized by dimensional accuracy, light weight, corrosion resistance, ease of processing, and non-cracking properties when bent.
Our aluminum alloy flat/Rectangular bar conform to international standards such as ASTM, EN, ISO, etc. We can also provide Material Testing Certificates (MTC) and third-party inspection reports upon request to ensure quality assurance and traceability for your critical applications. We offer a variety of thicknesses and widths to meet diverse application needs, and provide standard and custom sizes to meet specific design requirements.
Specification
|
Category |
Details |
Notes / Options |
|
Common Alloys |
1050, 1060, 1100, 2011, 2024, 3003, 5052, 5083, 6061, 6063, 6082, 7075 | Selection depends on required strength, corrosion resistance, and machinability. |
|
Temper |
O, H112, H14, H16, H18, T4, T5, T6, T651 | O: Soft & formable. HXX: Strain-hardened. TXX: Heat-treated for high strength. |
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Thickness |
1 mm – 100 mm | Standard range; custom gauges available upon request. |
|
Width |
5 mm – 500 mm | Standard range; custom widths available upon request. |
|
Length |
1,000 mm – 6,000 mm (Standard) | Cut to your specified length. Custom lengths up to 12m+ possible. |
|
Tolerances (Typical) |
Thickness: ±0.1mm to ±0.5mm. Width: ±0.5mm to ±1.0mm. Straightness: ≤ 1mm per 300mm. | Tighter tolerances available for precision applications. |
|
Surface Finish |
Mill Finish, Brushed, Polished (Mirror/Satin), Anodized (Clear/Color), Powder Coated. | Mill finish is standard; all other finishes are value-added options. |
|
Chemical Composition |
Controlled to strict international standards (ASTM, EN, GB). | Full spectrographic analysis report available. |
|
Mechanical Properties |
Varies significantly by alloy and temper. | Tensile/Yield Strength, Elongation, and Hardness data provided per specification. |
|
Packaging |
Bundled and strapped, wrapped in protective VCI or PE film, on wooden pallets. | Ensures protection from damage and corrosion during transit and storage. |
HSTF Aluminum Flat/Rectangular Bar Hot Selling Products
6061 T6 T6511 High Strength Aluminum Flat Bar
Features defined edges, smooth surface and is lightweight. Common applications include shelves, brackets, sculptures and structural decoration. With above-average corrosion resistance, this is an excellent choice whenever strength is needed.
Construction 6063 T5 T52 Aluminum Flat Bar
Extruded alloys possess relatively high tensile strength, excellent surface finish properties, and high corrosion resistance. This grade is often referred to as architectural alloys and is used in applications ranging from decorative works to details such as screens and grilles.
7075 T651 T7351 Ultra High Strength Flat Bar
Contains copper and zinc for superior strength. They are stronger than 2024 aluminum rods and are commonly used for parts subject to high stress in aircraft and transportation industries. Other uses include mold materials in the plastics industry.
2024 T3 T4 T351 Anti-Fatigue Aluminum Flat Bar
Its excellent fatigue resistance makes it particularly important in applications subjected to cyclic loading. Its high strength-to-weight ratio, good machinability, and acceptable corrosion resistance make it ideal for structural and mechanical applications with extremely high performance requirements.
1070 CE Grade Aluminum Flat Bar
It exhibits excellent electrical conductivity and corrosion resistance. It is widely used in the power and electronics industries, especially in power transmission and electrical connections, ensuring an efficient and reliable power supply.
1370 Aluminum Flat Bar/Busbar
An aluminum alloy material with good mechanical strength and corrosion resistance, widely used in the power, machinery, and construction industries. It is inexpensive, easy to process, weld, and form, and suitable for various structural and connection applications.
6101 Conductive Aluminum Flat Busbar
Designed specifically for high-current applications, it combines excellent conductivity with superior mechanical strength. In power distribution systems where weight, cost, and performance are critical, 6101 aluminum busbars are an ideal and economical alternative to copper busbars.
3003 Corrosion-Resistant Flat Bar
Contains manganese for strength, corrosion resistance, and ease of processing, used in kitchen equipment, siding, decking, and chemicals.
5052 H32 Highly Practical Flat Bar
Stronger than 1100 and 3033 aluminum bars, easily workable and weldable, used in aircraft fuel systems, tanks, rivets, wires, and appliances.
5083 T6511 Aluminium Flat Bar
Easy to form, strong after welding, and resistant to seawater erosion. Used in marine accessories, hydraulic equipment, and decorative hardware.
6082 T6 Engineering Flat Bar
Excellent engineering grade aluminum suitable for machining, tapping and drilling. Good weldability and anti-corrosion property.
6060 Weldable Aluminum Flat Bar
A medium-strength material with good weldability and machinability, suitable for manufacturing window frames, vehicle body structures, etc.
1050 Aluminum Flat Bar
Stronger Commercially pure aluminum with excellent electrical and thermal conductivity, ideal for electrical conductors and decorative applications.
1060 Aluminum Flat Bar
High-purity aluminum (99.6%) has good elongation and corrosion resistance, making it suitable for chemical equipment and busbar systems.
7050 T7451 Aerospace Flat Bar
Resistant to corrosion and spalling. They retain their strength over time and are commonly used in fuselages, bulkheads, wing skins, and aerospace.
HSTF Aluminum Flat/Rectangular Bar Inventory Size Reference
| Aluminum flat bar imperial size stock reference table (imperial size) | |||||
| Size description | Width inch | Thickness inch | Length inches | ||
| 3/8×1/16 flat bar | 3/8 | 0.375 | 1/16 | 0.0625 | 16 |
| 3/8×3/16 flat bar | 3/8 | 0.375 | 3/16 | 0.1875 | 16 |
| 3/8×1/4 flat bar | 3/8 | 0.375 | 1/4 | 0.25 | 16 |
| 1/2×1/16 flat bar | 1/2 | 0.5 | 1/16 | 0.0625 | 16 |
| 1/2×1/8 flat bar | 1/2 | 0.5 | 1/8 | 0.125 | 16 |
1/2×3/16 aluminum flat bar |
1/2 | 0.5 | 3/16 | 0.1875 | 16 |
| 1/2×3/8 flat bar | 1/2 | 0.5 | 3/8 | 0.375 | 16 |
| 1/2×1/4 flat bar | 1/2 | 0.5 | 1/4 | 0.25 | 16 |
| 5/8×1/8 flat bar | 5/8 | 0.625 | 1/8 | 1/8 | 0.125 |
| 5/8×3/8 flat bar | 5/8 | 0.625 | 3/8 | 0.375 | 16 |
| 5/8×3/16 flat bar | 5/8 | 0.625 | 3/16 | 0.1875 | 16 |
5/8×1/4 aluminum flat bar |
5/8 | 0.625 | 1/4 | 0.25 | 16 |
| 3/4×1/16 flat bar | 3/4 | 0.75 | 1/16 | 0.0625 | 16 |
| 3/4×1/8 flat bar | 3/4 | 0.75 | 1/8 | 0.125 | 8 |
| 3/4×1/8 flat bar | 3/4 | 0.75 | 1/8 | 0.125 | 16 |
| 3/4×3/16 flat bar | 3/4 | 0.75 | 3/16 | 0.1875 | 16 |
| 3/4×1/4 flat bar | 3/4 | 0.75 | 1/4 | 0.25 | 16 |
| 3/4×3/8 flat bar | 3/4 | 0.75 | 3/8 | 0.375 | 16 |
3/4×1/2 aluminum flat bar |
3/4 | 0.75 | 1/2 | 0.5 | 16 |
| 1×1/16 flat bar | 1 | 1.0 | 1/16 | 0.0625 | 16 |
| 1×1/8 flat bar | 1 | 1.0 | 1/8 | 0.125 | 16 |
| 1×1/8 flat bar | 1 | 1.0 | 1/8 | 0.125 | 20 |
| 1×1/8 flat bar | 1 | 1.0 | 1/8 | 0.125 | 21 |
| 1×3/16 flat bar | 1 | 1.0 | 3/16 | 0.1875 | 16 |
| 1×1/4 flat bar | 1 | 1.0 | 1/4 | 0.25 | 16 |
| 1×1/4 flat bar | 1 | 1.0 | 1/4 | 0.25 | 16 |
1×3/8 aluminum flat bar |
1 | 1.0 | 3/8 | 0.375 | 16 |
| 1×1/2 flat bar | 1 | 1.0 | 1/2 | 0.5 | 16 |
| 1-1/8×1/4 flat bar | 1-1/8 | 1.125 | 1/4 | 0.25 | 16 |
| 1-1/4×1/16 flat bar | 1-1/4 | 1.25 | 1/16 | 0.0625 | 16 |
| 1-1/4×3/16 flat bar | 1-1/4 | 1.25 | 3/16 | 0.1875 | 16 |
| 1-1/4×1/4 flat bar | 1-1/4 | 1.25 | 1/4 | 0.25 | 16 |
| 1-1/4×3/8 flat bar | 1-1/4 | 1.25 | 3/8 | 0.375 | 16 |
| 1-1/4×1/2 flat bar | 1-1/4 | 1.25 | 1/2 | 0.5 | 16 |
| 1-1/2×1/16 flat bar | 1-1/2 | 1.5 | 1/16 | 0.0625 | 16 |
1-1/2×3/16 aluminum flat bar |
1-1/2 | 1.5 | 3/16 | 0.1875 | 16 |
| 1-1/2×1/4 flat bar | 1-1/2 | 1.5 | 1/4 | 0.25 | 16 |
| 1-1/2×3/8 flat bar | 1-1/2 | 1.5 | 3/8 | 0.375 | 16 |
| 1-1/2×1/2 flat bar | 1-1/2 | 1.5 | 1/2 | 0.5 | 16 |
| 2×1/16 flat bar | 2 | 2.0 | 1/16 | 0.0625 | 16 |
| 2×1/8 flat bar | 2 | 2.0 | 1/8 | 0.125 | 16 |
| 2×3/16 flat bar | 2 | 2.0 | 3/16 | 0.1875 | 16 |
2×1/4 aluminum flat bar |
2 | 2.0 | 1/4 | 0.25 | 16 |
| 2×3/8 flat bar | 2 | 2.0 | 3/8 | 0.375 | 16 |
| 2×1/2 flat bar | 2 | 2.0 | 1/2 | 0.5 | 16 |
| 2×3/4 flat bar | 2 | 2.0 | 3/4 | 0.75 | 16 |
| 2×1 flat bar | 2 | 2.0 | 1 | 1.0 | 16 |
| 2-1/2×1/4 flat bar | 2-1/2 | 2.5 | 1/4 | 0.25 | 16 |
| 3×1/8 flat bar | 3 | 3.0 | 1/8 | 0.125 | 16 |
| 3×3/16 flat bar | 3 | 3.0 | 3/16 | 0.1875 | 16 |
| 3×1/4 flat bar | 3 | 3.0 | 1/4 | 0.25 | 16 |
3×3/8 aluminum flat bar |
3 | 3.0 | 3/8 | 0.375 | 16 |
| 3×1/2 aluminum flat bar | 3 | 3.0 | 1/2 | 0.5 | 16 |
| 3×3/4 aluminum flat bar | 3 | 3.0 | 3/4 | 0.75 | 16 |
| 3-5/8×1 aluminum flat bar | 3-5/8 | 3.625 | 1 | 1.0 | 14 |
| 4×1/8 aluminum flat bar | 4 | 4.0 | 1/8 | 0.125 | 16 |
| 4×1/4 aluminum flat bar | 4 | 4.0 | 1/4 | 0.25 | 16 |
| 4×3/8 aluminum flat bar | 4 | 4.0 | 3/8 | 0.375 | 16 |
| 4×1/2 aluminum flat bar | 4 | 4.0 | 1/2 | 0.5 | 16 |
| 6×1/4 aluminum flat bar | 6 | 6.0 | 1/4 | 0.25 | 16 |
| 6×3/8 aluminum flat bar | 6 | 6.0 | 3/8 | 0.375 | 16 |
| 6×1/2 aluminum flat bar | 6 | 6.0 | 1/2 | 0.5 | 16 |
Application
Industrial Manufacturing and Mechanical Structures
- Equipment Frames and Brackets: Used as supporting skeletons in the manufacture of automated equipment, production lines, workbenches, and cabinets, providing a stable structural foundation.
- Guide Rails and Slides: In CNC machine tools, conveyor belts, or sliding door systems, they serve as guiding components, ensuring the smooth operation of moving parts.
- Connectors and Ribs: As connecting plates or reinforcing ribs, they enhance the structural strength of equipment or containers, preventing deformation. Industrial Manufacturing and Mechanical Structures.
Transportation and Vehicle Manufacturing
Used in the manufacture of lightweight vehicle body structures, interior trim, and protective components.
- Vehicle Body Frame: Serves as a supporting structure for side walls and roofs in rail vehicles, truck bodies, or special vehicles, reducing overall vehicle weight.
- Interior Fixtures: Provides secure mounting points for seats, luggage racks, or floors.
- Guardrails and Crash Beams: Act as interior guardrails or small crash barriers to absorb impact energy.
Electrical and Electronic Systems and Heat Dissipation
- Busbars: Used in power distribution cabinets and battery packs as conductors for high-current transmission, replacing traditional copper busbars to reduce costs.
- Heat Sinks: Serving as heat dissipation substrates for electronic components (such as LED lights and power modules), rapidly dissipating heat by increasing surface area.
- Chassis and Housings: Used to manufacture enclosures, housings, or shielding covers for electronic equipment, providing both structural support and electromagnetic shielding.
Building and Decoration Engineering
- Curtain Wall Studs: Serving as the supporting keel for glass or metal panel curtain walls, providing the installation foundation and bearing wind loads.
- Door and Window Frames: Used to construct the frames and beams of aluminum alloy doors and windows, ensuring the flatness and airtightness of the doors and windows.
- Decorative Moldings: Serving as edge trims and moldings for interior ceilings, walls, or furniture, serving a decorative purpose and concealing gaps.
Photovoltaic Support System
As the core framework of the photovoltaic support system, it is responsible for supporting and securing the solar panels.
- Support Beams: Serving as lateral supports for the photovoltaic array, they connect to the columns, forming a stable frame structure.
- Guide Rails: Used for installing and securing the solar panels, ensuring the panels are flat and evenly spaced.
- Frame Reinforcement: In large photovoltaic modules, these act as internal reinforcing ribs, enhancing the rigidity of the module frame and preventing deformation.
Why Choose HSTF Aluminum Flat/Rectangular Bar?
- Fast Delivery: We have extensive inventory to ensure fast delivery of any standard aluminum profile, saving time for the smooth progress of your project.
- Customized Profiles: In addition to standard aluminum profiles, HSTF can also provide customized aluminum profiles according to customer requirements for size and finish. You only need to indicate the alloy, length, quantity, surface finish, end use and other special requirements to us.
- High-Quality Products: The quality of our products complies with standards and certifications and features modern design, high hardness, resistance to bending, anti-rust, and anti-moths, as well as good soundproofing and insulation properties.
- Competitive Price: Our product prices are competitive and we can provide reasonable discounts for large quantities, allowing you to get better prices and better services.
- After-Sales Support: We can provide fast after-sales support to ensure that you receive timely help and support when using our products.
