2024 Aluminum Flat Bar
2024 Aluminum Flat Bar is an aluminum material with a rectangular cross-section made from 2024 aluminum alloy. Compared to round aluminum bars, it has different mechanical properties and manufacturing advantages.
2024 aluminum flat bars are widely used in industries where high strength, reliability, and fatigue resistance are critical considerations. The alloy’s excellent fatigue resistance makes it particularly valuable in applications subjected to cyclic loading conditions. Its combination of high strength-to-weight ratio, good machinability, and acceptable corrosion resistance (especially in T3/T4 tempers or when properly protected) makes it a preferred choice for structural and mechanical applications where performance is paramount.
Advantage |
Description |
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High Strength |
2024 aluminum alloy is renowned for its exceptional strength, with tensile strength and yield strength among the highest in aluminum alloys. It can withstand significant external forces, making it suitable for high-strength structural parts. |
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Fatigue Resistance |
2024 aluminum alloy flat bar exhibits excellent fatigue resistance, making it especially suitable for applications that endure repeated loads, such as aerospace structural parts. |
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Corrosion Resistance |
While 2024 aluminum alloy boasts high strength, its corrosion resistance is relatively poor, especially in marine or high-humidity environments. Therefore, it typically requires surface treatments (such as anodizing) to enhance its corrosion resistance. |
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Machinability |
2024 aluminum alloy flat bar has good machinability in its cold-worked state, allowing it to be precisely processed by cutting, stamping, drilling, and other methods. |
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Weldability |
2024 aluminum alloy has poor weldability, especially in heat-treated conditions. Therefore, for applications requiring welding, other aluminum alloys with better weldability may need to be selected. |
Our 2024 aluminum flat bar conforms to multiple international standards, including ASTM B211, AMS 4120, AMS 4339, and AMS-QQ-A-225/6. We can also provide material testing certificates and third-party inspection reports upon request to ensure quality assurance for your critical applications. Our commitment to quality means you can rely on our 2024 aluminum flat bar to meet the stringent requirements of your projects.
HSTF Aluminum is a high-quality 2024 aluminium bar supplier and manufacturer in China. We have large stock, factory direct price, quality assurance, fast delivery.
Specification
| Temper | 2024-T3, T351, T3511, T4, T851 |
| Dimensions | 1/8″ x 1/2″ to 3″ x 6″ |
| Length | 2m / 3m / 6m, customizable |
| Standards | ASTM B211, ASTM B221,AMS 4120, AMS 4339, AMS-QQ-A-200/3, AMS-QQ-A-225/6 |
| Certifications | ISO 9001, AS9100, NADCAP (Heat Treatment & NDT) |
| Testing | Ultrasonic Testing (ASTM B594), Metallography, Mechanical Properties Testing |
2024 Aluminum Flat Bar Mechanical Properties
| Temper | Tensile Strength (ksi / MPa) | Yield Strength (ksi / MPa) | Elongation (%) |
| 2024-O | 21 / 145 | 9 / 62 | 10-16% |
| 2024-T3 | 56-70 / 386-483 | 34-41 / 234-283 | 8-20% |
| 2024-T351 | 56-70 / 386-483 | 34-41 / 234-283 | 8-20% |
| 2024-T4 | 56-70 / 386-483 | 35-50 / 241-345 | 8-17% |
2024 Aluminum Flat Bar Temper Type
2024 T3 Aluminum Flat Bar
Cold worked and lightly heat-treated, this temper balances good machinability and moderate strength. Suitable for applications requiring a mix of workability and structural strength.
ASTM B221 & AMS 4152 & EN 755
2024 T351 Aluminum Flat Bar
Undergoes strict heat treatment, delivering higher tensile strength and superior fatigue resistance. Ideal for high-load and safety-critical components. Maintains performance under extreme conditions.
ASTM B221 & AMS 4120 & EN 754
2024 T4 Aluminum Flat Bar
Annealed for enhanced formability and ductility, suitable for applications needing further processing. Ensures stable performance in secondary operations.
ASTM B221 & AMS 4120 & EN 754If you’re unsure which tempering grade is best for your application, our technical team can help you select the appropriate grade and processing conditions. Contact us for expert advice, data sheets, or custom supply options tailored to your project.
2024 Aluminum Flat Bar Type
Our best-selling 2024 aluminum flat bar offer high strength, excellent fatigue resistance, and reliable machinability. From aerospace structural components to efficient CNC turning, we provide a full range of production types and sizes to meet your critical needs.
2024 Extruded Aluminum Flat Bar
Manufactured using a high-precision extrusion process, ensuring dimensional stability and surface uniformity. It possesses excellent mechanical properties, making it suitable for applications requiring high consistency and fatigue resistance, particularly in the aerospace and industrial sectors.
Excellent Mechanical Properties & High Consistency & Fatigue Resistance
2024 Cold Finish Aluminum Flat Bar
Produced through precision cold-working processes, ensuring tight dimensional tolerances and excellent surface quality. Enhanced machinability and fatigue performance make it ideal for precision manufacturing of mechanical and structural parts.
Tight Dimensional Tolerances & Excellent Surface Quality & Enhanced Machinability
Customized 2024 Aluminum Flat Bar
2024 aluminum alloy flat bars are available in full sizes and custom-cut lengths. Common sizes include various thicknesses, widths, and lengths to meet different customer needs. They can be precisely cut and processed according to customer requirements to suit specific application scenarios.
Custom Size, Length and Surface & Fast, Accurate and Engineered
Pre-Drilled 2024 Aluminum Flat Bar
Pre-machined holes reduce secondary processing time and boost assembly efficiency, perfect for aerospace fasteners and automation systems.
Improve Assembly EfficiencyHSTF 2024 Flat Bar Hot Selling Size
| Product Detail (Cold Finished) | Weight (lbs/ft) |
| 1/8″×1/2″ 2024 T351 Flat Bar | 0.08 |
| 1/8″×3/4″ 2024 T351 Flat Bar | 0.113 |
| 1/8″×1″ 2024 T351 Flat Bar | 0.15 |
| 1/8″×2″ 2024 T351 Flat Bar | 0.3 |
| 1/4″×1/2″ 2024 T351 Flat Bar | 0.15 |
| 1/4″×3/4″ 2024 T351 Flat Bar | 0.225 |
| 1/4″×1″ 2024 T351 Flat Bar | 0.3 |
| 1/4″×2″ 2024 T351 Flat Bar | 0.6 |
| 1/4″×3″ 2024 T351 Flat Bar | 0.9 |
| 1/4″×4″ 2024 T351 Flat Bar | 1.2 |
| 3/8″×1/2″ 2024 T351 Flat Bar | 0.225 |
| 3/8″×1″ 2024 T351 Flat Bar | 0.45 |
| 3/8″×2″ 2024 T351 Flat Bar | 0.9 |
| 3/8″×3″ 2024 T351 Flat Bar | 1.35 |
| 1/2″×3/4″ 2024 T351 Flat Bar | 0.455 |
| 1/2″×1″ 2024 T351 Flat Bar | 0.666 |
| 1/2″×2″ 2024 T351 Flat Bar | 1.125 |
| 1/2″×4″ 2024 T351 Flat Bar | 2.424 |
| 5/8″×1″ 2024 T351 Flat Bar | 0.758 |
| 5/8″×2″ 2024 T351 Flat Bar | 1.136 |
| 3/4″×1″ 2024 T351 Flat Bar | 0.909 |
| 3/4″×2″ 2024 T351 Flat Bar | 1.818 |
| 3/4″×3″ 2024 T351 Flat Bar | 2.727 |
| 3/4″×4″ 2024 T351 Flat Bar | 3.636 |
| 1″×2″ 2024 T351 Flat Bar | 2.424 |
| 1″×3″ 2024 T351 Flat Bar | 3.636 |
| 1″×4″ 2024 T351 Flat Bar | 4.19 |
| 1″×5″ 2024 T351 Flat Bar | 4.848 |
| 1-1/2″×2″ 2024 T351 Flat Bar | 3.6 |
| 1-1/2″×4″ 2024 T351 Flat Bar | 7.2 |
| 1-1/2″×6″ 2024 T351 Flat Bar | 10.8 |
| 1-1/2″×8″ 2024 T351 Flat Bar | 14.4 |
| 2″×3″ 2024 T351 Flat Bar | 7.272 |
| 2″×4″ 2024 T351 Flat Bar | 9.6 |
| 2″×6″ 2024 T351 Flat Bar | 14.4 |
| 3″×4″ 2024 T351 Flat Bar | 14.4 |
- Inventory size, quick delivery within 7-10 days.
- We update our inventory frequently. If you cannot find the specification you need, please contact us.
Application
Aerospace & Aviation
- Wing rib stiffeners: flat bars reinforce thin-sheet ribs, enhancing rigidity under aerodynamic loads.
- Fuselage frame segments: used as edge-mounted supports for cabin wall panels, reducing weight vs. steel.
- Control surface hinges: precision-machined flat bars form low-friction hinge arms for ailerons/elevators.
Automotive Industry
- Racing chassis crossmembers: flat bars link suspension pickups, improving torsional stiffness and reducing lap times.
- Battery tray supports (EVs): lightweight flat bars secure battery packs, aiding thermal management and crash safety.
- Exhaust hanger brackets: flat bars withstand high temps, securing exhaust systems without adding excess weight.
Shipbuilding
- Hull reinforcement: flat bars used as longitudinal stringers and transverse floor plates to strengthen aluminum boat hulls against wave impact and stress.
- Deck hardware mounting: flat bars serve as sturdy bases for cleats, bollards, and fairleads, ensuring secure, corrosion-resistant attachment points.
- Superstructure framing: flat bars form lightweight, rigid frames for cabins, railings, and bulkheads, reducing overall vessel weight while maintaining structural integrity.
Architecture & Construction
- Curtain wall mullion stiffeners: flat bars reinforce aluminum mullions, enhancing wind and seismic resistance in high-rise façades.
- Canopy and awning supports: lightweight flat bars form strong, corrosion-resistant frames for outdoor roof extensions and entrance covers.
- Interior partition tracks: slim flat bars serve as durable rails for modular wall systems, enabling quick installation and reconfiguration.
Packaging
- It can be packed in containers or bulk containers.
- 2.20 tons of this grade can hold 20 foot containers, and 25 tons of this grade can hold 40 foot containers.
- Standard export seaworthy package, harness according to product size. Bundling, seaworthy wooden pallet or wooden box, iron pallet, waterproof paper. With or without edge protector, steel hoop and seal.
- According to the specific requirements of customers.
Why Choose Us?
High-Quality Products: Manufactured using high-grade aluminum ingots and advanced extrusion processes, our 2024 aluminum flat bars deliver high strength, excellent mechanical properties, and superior dimensional stability.
Outstanding Surface Finish & Precision Control: Through high-precision extrusion, online thickness measurement, and surface treatment, we ensure a smooth, flat surface free of internal bubbles. Tolerances reach up to ±0.1mm, ideal for high-precision machining.
Multiple Temper Options Available: We offer 2024 flat bars in a variety of tempers such as T3, T351 and T4, tailored to meet different requirements for strength, toughness, and corrosion resistance.
Fast Delivery & Custom Services: With a large stock of standard sizes, we ensure prompt delivery. We also support custom lengths, precision cutting, pre-drilling, and anodizing upon request, helping reduce downstream processing costs.
Competitive Pricing: Thanks to scaled production and optimized supply chains, we provide cost-effective 2024 aluminum flat bars. Whether it’s bulk purchases or small-quantity orders, we offer flexible procurement options and reasonable prices.
Rigorous Quality Inspection: All our 2024 flat bars can be supplied with ultrasonic testing (UT), hardness testing, chemical composition analysis, and more, upon request. Products meet ASTM B221 standards and support third-party certifications.
Professional Technical Support: We provide technical consultations and material selection advice. Our responsive after-sales team ensures a smooth purchasing experience.
FQA
Yes,we promise to provide best quality products and delivery on time .Honesty is our company’s tenet.
We can provide the sample for customer with free, but the customer account will cover the courier freight.
The manufacturing process produces each piece in certified workshops. Our inspection team checks them piece by piece. This is done according to national QA/QC standards. We also could issue the warranty to customer to guarantee the quality.
We specialize in steel business for years. Our headquarters is in Liaocheng Economic Zone. This is in Shandong province. You are welcome to investigate in any way. By all means, you could place an order. Use trade assurance for your payment security.
Our team will check email and fax within 24 hours. Meanwhile, these platforms remain online 24 hours. They include Facebook, Skype, WeChat, and WhatsApp. Please send us your requirements and order information. Provide the specification details. These include steel grade, size, and quantity. Also include the destination port. We will work out the best price soon.










