Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 2024 aluminum plate in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.

2024 Aluminum Plate & Sheet – T351, T3, T4 & T851
High-Strength Aluminum-Copper-Magnesium Alloy for Aerospace, Precision Machining & Industrial Components
Xi'an Dongmeng Group Co., Ltd. supplies 2024 aluminum plate and sheet for precision machining, aerospace-related manufacturing, structural components, and industrial engineering applications.
2024 aluminum is a heat-treatable Al-Cu-Mg alloy belonging to the 2xxx series. It is known for high mechanical strength, established fatigue performance, and good machinability. Compared with general-purpose aluminum alloys, 2024 is often selected where mechanical strength and weight reduction are key design priorities.
We support project-based supply of 2024 aluminum in specified tempers and dimensions, with cut-to-size preparation, material traceability, mill inspection certificates, and export packaging available according to order requirements.
For customers machining high-strength structural parts, 2024-T351 aluminum plate is a particularly important option due to its stress-relieved condition.
Request a quotation with your required temper, thickness, dimensions, quantity, material standard, and destination.
2024 Aluminum Plate Specifications
2024 aluminum is available as rolled sheet or plate in different temper conditions. Product dimensions, tolerances, surface characteristics, and material certification requirements depend on the selected manufacturing specification.
| Specification | Details |
| Product | 2024 Aluminum Plate & Sheet |
| Alloy | AA2024 / UNS A92024 |
| Series | 2xxx / Al-Cu-Mg |
| Tempers | T3 / T4 / T351 / T851; subject to availability |
| Thickness | 1.0–150 mm published range; confirm availability |
| Sizes | Mill sizes or custom cut-to-size |
| Surface | Bare / Mill Finish / Specified Alclad |
| Standards | ASTM B209/B209M; applicable AMS and EN specifications |
| Processing | Cutting, blank preparation, arranged machining |
| Inspection | MTC, chemical and mechanical testing, optional third-party inspection |
Supply Note: The published thickness range does not mean that all thicknesses, tempers, and certification combinations are stocked or covered by every listed standard. For example, AMS 4037S specifies an applicable sheet/plate thickness range of 0.20–101.60 mm, while AMS 4041U has its own narrower scope for Alclad material.
For critical applications, always include the exact product specification and revision in your purchase order.
2024 Aluminum Tempers: T3 vs T4 vs T351 vs T851
Selecting the correct temper is essential because it affects mechanical strength, machinability, formability, dimensional stability, and component performance.
| Temper | Condition | Typical Application |
| T3 | Solution heat-treated, cold-worked and naturally aged | Aircraft sheet and mechanically fastened parts |
| T4 | Solution heat-treated and naturally aged | Selected forming and machining |
| T351 | Solution heat-treated, stretched for stress relief, naturally aged | Precision machined plate |
| T851 | Solution heat-treated, stretched for stress relief, artificially aged | High-yield-strength plate components |
| O | Annealed | Forming and subsequent processing |
Why Choose 2024-T351 Aluminum Plate?
2024-T351 is an important grade for engineering customers performing substantial CNC milling, drilling, pocketing, and contour machining.
Stress relief by stretching reduces residual stress introduced during processing. This can help reduce machining distortion, particularly when substantial material is removed from the original plate.
Typical applications include:
Precision structural fittings
Aerospace-related machined components
High-strength brackets and mounting parts
Equipment components requiring dimensional control
CNC-machined blocks and plate blanks
For close-tolerance components, purchasers should also specify machining allowances, preferred material direction, required flatness, and the inspection method.
When Should You Choose T3?
2024-T3 is commonly associated with sheet applications and mechanically fastened structures. It is an established choice where good mechanical strength and fatigue-related performance are required.
When Should You Choose T851?
2024-T851 may be considered for applications prioritizing higher yield strength. However, its lower ductility must be accounted for in the design and manufacturing process.
Engineering Reminder: Different tempers should not be substituted without approval from the responsible designer or purchasing specification.
Chemical Composition of 2024 Aluminum
The high strength of 2024 aluminum is largely associated with its copper and magnesium alloying system.
Copper contributes to precipitation strengthening, while magnesium and manganese influence the alloy's microstructure and mechanical behavior.
| Element | Symbol | Content (wt. %) |
| Copper | Cu | 3.80–4.90 |
| Magnesium | Mg | 1.20–1.80 |
| Manganese | Mn | 0.30–0.90 |
| Silicon | Si | ≤0.50 |
| Iron | Fe | ≤0.50 |
| Zinc | Zn | ≤0.25 |
| Chromium | Cr | ≤0.10 |
| Titanium | Ti | ≤0.15 |
| Others, each | - | ≤0.05 |
| Others, total | - | ≤0.15 |
| Aluminum | Al | Balance |
These are composition limits for the 2024 base alloy. For actual material acceptance, the applicable standard and mill chemical analysis must be used.
For Alclad 2024, the composition of the cladding layer is evaluated separately from that of the 2024 core.
Mechanical Properties of 2024 Aluminum Plate
Mechanical properties depend on material temper, thickness, rolling direction, product form, and governing specification.
For example, a thick 2024-T351 plate may have different guaranteed properties from thin 2024-T3 sheet. Therefore, a single numerical strength requirement should not be used for every material condition.
Reference Example: BS 2 L97 2024-T351 Plate
| Thickness (mm) | Direction | Tensile Min. (MPa) | Proof Stress Min. (MPa) | Elongation Min. (%) |
| 6–25 | LT | 430 | 280 | 10 |
| >25–40 | LT | 420 | 280 | 9 |
| >40–115 | LT | 410 | 270 | 8 |
Important: The values above are examples for BS 2 L97 2024-T351 plate in the long-transverse direction, not universal ASTM B209 or AMS 4037 acceptance limits. For current projects, use the certified values prescribed by the exact standard revision and purchase specification.
Typical Physical Properties
| Physical Property | Reference Value |
| Density | Approx. 2.78 g/cm³ |
| Elastic Modulus | Approx. 73 GPa |
| Melting Range | Approx. 502–638°C |
| Thermal Conductivity (T4/T351) | Approx. 120 W/m·K |
| Thermal Expansion (20–100°C) | Approx. 22.9 × 10⁻⁶/K |
Physical properties are reference data and should not replace design allowables or certified material test results.
Main Advantages of 2024 Aluminum Plate
High Strength-to-Weight Ratio
2024 aluminum offers a high level of mechanical strength relative to its weight. This makes it suitable for structures and components where weight reduction is important but mechanical performance must be maintained.
Established Fatigue Performance
2024 aluminum has a long history of use in cyclically loaded structural applications, particularly within aerospace manufacturing.
Actual component fatigue performance depends on geometry, surface condition, operating environment, loading spectrum, and manufacturing quality.
Good Precision Machinability
2024 aluminum can be processed using CNC milling, turning, drilling, and sawing operations.
Stress-relieved 2024-T351 plate is especially relevant to manufacturers producing parts that require extensive material removal and controlled dimensions.
Multiple Temper Choices
Different tempers provide options for strength, forming capability, residual-stress control, and manufacturing process requirements.
Structural Applications
2024 is used for selected high-load structural fittings, mounting components, and precision parts where its mechanical properties support the design requirements.
Surface Protection Options
Bare 2024 has relatively limited corrosion resistance compared with common 5xxx and 6xxx aluminum alloys. Appropriate coatings, cladding, or corrosion protection should be considered based on the application environment.
Bare 2024 vs Alclad 2024 Aluminum
Bare and Alclad 2024 are different material products and should not be treated as interchangeable without engineering approval.
Bare 2024 Aluminum Plate
Bare 2024 is generally appropriate for machined and structural components where the material has no metallurgically bonded protective cladding.
It can be supplied with a mill-finished surface, and suitable corrosion protection may be applied during or after component manufacturing.
Alclad 2024 Aluminum Sheet & Plate
Alclad 2024 includes a metallurgically bonded layer of corrosion-resistant aluminum over the stronger 2024 core.
It is associated with selected aerospace sheet and plate applications where increased surface corrosion resistance is required.
For Alclad products, customers should specify the exact AMS or other applicable material standard, temper, cladding configuration, and nominal thickness.
AMS 4041U applies to defined Alclad 2024-T3/T351 material within its specified thickness range; it does not establish that every thickness of 2024 plate can be supplied as Alclad.
Machining and Fabrication of 2024 Aluminum
CNC Milling and Precision Machining
2024-T351 is suitable for manufacturing many high-strength machined components.
For parts requiring substantial material removal, engineering controls may include staged rough machining, suitable fixturing, intermediate measurement, and optimized machining allowances.
Saw Cutting and Blank Preparation
Cut-to-size material allows customers to reduce waste and simplify subsequent machining.
Dongmeng Group can review plate dimensions, cutting allowances, and packaging requirements as part of project-based supply.
Drilling and Mechanical Fastening
2024 aluminum is often used in components assembled by rivets, bolts, and other mechanical fasteners.
Hole preparation, edge distances, joint design, and galvanic compatibility should follow the applicable engineering requirements.
Formability
Formability depends on temper, thickness, rolling direction, bend radius, and tooling. High-strength tempers should not be assumed suitable for tight-radius forming.
Welding
Conventional fusion welding is generally not recommended for highly stressed 2024 structural components because of cracking susceptibility and possible reduction in mechanical performance.
Where welding is proposed, it requires specific engineering evaluation and an appropriately qualified procedure.
Applications of 2024 Aluminum Plate
Aerospace and Aviation Components
2024 aluminum is widely associated with aircraft structures and fittings, including selected frames, structural reinforcement components, and mechanically fastened parts.
Aerospace suitability must be verified against the specific material specification, engineering drawing, approved supplier requirements, and inspection procedures.
Precision CNC-Machined Components
Stress-relieved 2024 plate is a material option for precision machined housings, fittings, brackets, and structural components.
Industrial Machinery
2024 may be selected for demanding industrial equipment components where a combination of strength, machinability, and relatively low weight is required.
Automotive and Motorsport Components
Selected vehicle and motorsport parts may use 2024 where the mechanical design justifies the alloy and temper.
Specialized Tooling and Fixtures
2024 can be used for certain high-strength fixtures, machined support components, and specialized tools. For tooling primarily requiring welding or corrosion resistance, other aluminum alloys may be more suitable.
2024 vs 6061 vs 7075 Aluminum Plate
| Selection Factor | 2024 | 6061 | 7075 |
| Alloy System | Al-Cu-Mg | Al-Mg-Si | Al-Zn-Mg-Cu |
| Typical Strength Level | High | Medium | Very high |
| General Corrosion Resistance | Limited without protection | Good | Temper-dependent |
| CNC Machining | Good | Good | Good |
| Conventional Fusion Welding | Generally unfavorable | Often suitable with qualified procedures | Generally unfavorable |
| Representative Applications | Aircraft structures, precision machined components | General structures, welded equipment, industrial parts | High-strength aerospace and machined parts |
2024 vs 6061
2024 is often selected when higher mechanical strength and established fatigue-related structural performance are more important than weldability.
6061 is generally more appropriate for welded structures, general-purpose fabrication, and applications requiring better natural corrosion resistance.
2024 vs 7075
7075 offers very high strength in selected tempers and is widely used for highly loaded machined structures.
2024 may be selected for applications requiring its particular combination of strength, fatigue properties, structural performance, and long-established aerospace use.
Selection between 2024 and 7075 must consider the exact temper, toughness requirements, corrosion environment, loading conditions, and engineering specification.
Inspection, Quality Control and Traceability
For high-strength aluminum materials, material identification, certified properties, and dimensional consistency are critical purchasing requirements.
Dongmeng Group can coordinate appropriate inspection documentation and quality verification according to the supply agreement.
Chemical Composition Verification
Mill chemical analysis and supplementary testing where requested.
Mechanical Property Verification
Review of tensile strength, proof stress, and elongation against the governing material standard.
Dimensional Inspection
Thickness, width, length, flatness, surface condition, and cut-size verification against agreed tolerances.
Material Traceability
Identification of alloy, temper, production batch or lot, and relevant test report numbers.
Non-Destructive Testing
Ultrasonic examination may be arranged for suitable material forms where the method and acceptance criteria are established in the purchase order.
Third-Party Inspection
Independent inspection may be coordinated when specified, subject to availability and commercial agreement.
Certificates
Mill Test Certificates and relevant inspection records can be reviewed during quotation. EN 10204 3.1 documentation should be requested explicitly where required.
For aerospace programs, additional approval, testing, producer qualification, and traceability requirements may apply.
Custom Sizes, Processing and Export Supply
Dongmeng Group supports industrial procurement requirements involving multiple dimensions, specified tempers, technical documentation, and international delivery.
Depending on the selected mill product and project requirements, available supply arrangements may include:
Custom plate dimensions and cut-to-size blanks
Saw cutting and preliminary material preparation
Processing arrangements based on drawings
Specified surface protection
Material identification and packing lists
Mill test documentation and agreed inspection
Export pallets and reinforced wooden crates
Consolidated shipments for distributors and manufacturers
Cutting capability, dimensional tolerances, minimum order quantity, and production lead time are confirmed individually.
Packaging and Delivery
2024 aluminum plate can require protective packaging to reduce surface scratching, corner damage, and exposure to moisture during transport.
Packaging arrangements may include:
Protective sheet interleaving
Corner and edge protection
Moisture-resistant wrapping
Secured export pallets
Wooden crates for sensitive or cut-to-size material
External package identification and shipping marks
Each package should be identifiable by alloy, temper, dimensions, quantity, and the agreed material reference.
Frequently Asked Questions
Q1. What is 2024 aluminum plate mainly used for?
2024 aluminum plate is used for selected aerospace components, machined structural fittings, industrial machinery, and high-strength parts where weight and mechanical performance are important.
Q2. What is the difference between 2024-T3 and 2024-T351?
T3 is solution heat-treated, cold-worked, and naturally aged. T351 additionally identifies stress relief by stretching. T351 plate is commonly used where control of machining distortion is valuable.
Q3. Is 2024-T351 suitable for precision CNC machining?
Yes. It is a widely used option for high-strength machined plate components. The stress-relieved condition can help reduce distortion, although machining procedures and part geometry also affect final dimensional stability.
Q4. Is 2024 aluminum stronger than 6061?
In commonly used tempers, 2024 generally offers higher mechanical strength than 6061. The comparison should always be made using specific tempers and product forms.
Q5. Does 2024 aluminum have good corrosion resistance?
Bare 2024 has relatively limited general corrosion resistance. Appropriate surface protection or a specified Alclad product may be needed.
Q6. Can 2024 aluminum be welded?
Conventional fusion welding is generally unfavorable for highly loaded 2024 parts. Qualified alternative joining methods or mechanical fastening should be evaluated.
Q7. What is the difference between bare and Alclad 2024?
Bare 2024 has no metallurgically bonded protective cladding. Alclad 2024 uses a bonded, corrosion-resistant aluminum layer over the 2024 core.
Q8. What thicknesses are available?
The published supply range is 1.0–150 mm, but actual availability depends on temper, plate size, mill capacity, and material standard. A specific AMS or other standard may cover a narrower thickness range.
Q9. Can 2024 plate be supplied according to ASTM B209 or AMS specifications?
Requests can be evaluated against ASTM B209/B209M and applicable AMS specifications. Confirm the exact standard revision and mill certification before placing an order.
Q10. Is all 2024 aluminum aerospace certified?
No. The alloy is widely used in aerospace, but aerospace suitability depends on the material specification, manufacturer qualification, inspection records, and customer-specific requirements.
Q11. Can you supply cut-to-size 2024-T351 plates?
Cut-to-size requirements can be reviewed based on available parent plate dimensions, cutting tolerances, quantity, and machining allowances.
Q12. Is third-party inspection available?
Third-party inspection can be discussed during quotation. The inspection organization, inspection scope, and acceptance requirements should be specified before ordering.
Q13. What documents should be requested for precision manufacturing?
Typical requirements include a mill test certificate, material traceability, chemical analysis, mechanical test results, specified tolerances, and any agreed additional inspections.
Q14. What information is needed for a quotation?
Please provide alloy, temper, thickness, width, length, quantity, standard, material condition, inspection requirements, delivery destination, and drawings if applicable.
Request a Quote – 2024 Aluminum Plate Supplier
High-Strength Aluminum Plate Supply for Industrial and Precision Manufacturing Projects
Looking for 2024-T351 aluminum plate, 2024-T3 aluminum sheet, or a specified aerospace-related aluminum product?
Xi'an Dongmeng Group Co., Ltd. can review your procurement requirements and help coordinate suitable material sourcing, size preparation, inspection documentation, and international delivery.
Please include the following information in your RFQ:
Alloy and required temper
Thickness × width × length
Quantity and purchasing schedule
Applicable ASTM, AMS, or EN specification
Dimensional and surface requirements
Inspection and certification requirements
Delivery destination and Incoterms
Technical drawings, if available
Contact our team for a project-based quotation.
Office Information
Company: Xi'an Dongmeng Group Co., Ltd.
Phone: +86 15769214734
Email: office@dongmjd.com
WhatsApp: +86 15769214734
Office Address: Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province, China.
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