2024 aluminum bar T3 T4 T351 AMS4152

As a representative Al-Cu-Mg series hard aluminum alloy, 2024 aluminum bar demonstrates excellent strength and fatigue resistance after heat treatments in tempers such as T3, T4, and T351, in full compliance with SAE AMS4152N standards. It is widely used in aerospace and high-end equipment applications where performance and reliability are critical. We supply full-size extruded aluminum bars with complete traceability and consistent mechanical properties to meet demanding industrial requirements.

Aluminum Alloy 2024 T3 T4 T351 Properties

1. Core Chemical Composition (%)

2024 aluminum alloy uses aluminum as the base, with precisely balanced copper, magnesium, and manganese content that ensures high mechanical performance.

2. Key Mechanical Properties (by Temper)

Note: T3 involves solution heat treatment and cold working; T4 involves solution treatment and natural aging; T351 involves solution treatment with stress relief stretching (permanent deformation 1.5–3%).

3. Overall Characteristics

• Strength advantage: Below 150°C, its strength surpasses 7075 alloy; its strength-to-weight ratio is nearly 50% that of steel.

• Machinability: Excellent in hot forming and after quenching; supports precision milling and drilling (recommended cutting speed 200–300 m/min).

• Limitation: Moderate corrosion resistance—requires cladding or surface treatment for enhanced protection.

Available shapes: Flats, squares and rounds

Tempers: T351, T3511 & T4 T3

Specifications: ASTM B211, AMS 4120, AMS 4339, AMS-QQ-A-225/6, ASTM B221, AMS 4152, AMS 4164, AMS 4165, AMS-QQ-A-200/3

Aluminum extruded  bar 2024 T3 T4 Stock list

Aluminum extruded  bar 2024 T3 T4 Applications:

aircraft structural components,

truck wheels,

medical instruments,

ascrew machine products

FAQ: 

Q1: What is extruded aluminum?
Extruded aluminum is produced by forcing a preheated aluminum billet through a die to obtain a specific cross-sectional profile, forming bars or shapes with uniform geometry. This process offers advantages such as high dimensional accuracy (tolerance ≤ ±0.1 mm), consistent mechanical properties, and flexibility in complex shapes—making it ideal for aerospace-grade alloys like 2024.

Q2: How is extruded aluminum made?
The production process consists of four main stages. First, 2024 aluminum billets are cut to length and cleaned to remove oxide layers. Then, they are heated to around 400–500°C to reach the ideal plasticity for extrusion. Under high pressure, the billet is forced through the die to form the desired shape. Finally, post-extrusion treatments such as solution heat treatment, stress relief, and surface cleaning are applied to achieve T3, T4, or T351 tempers.

Q3: How to cut extruded aluminum?
The cutting method depends on precision and surface finish requirements. For general cutting, carbide-tipped saw blades (with 60 or more teeth) running at 1500–3000 rpm are recommended to avoid burrs and chip adhesion. For precision applications, laser or waterjet cutting provides high accuracy within ±0.05 mm. After cutting, deburring and surface cleaning with alcohol are advised to ensure optimal finish and cleanliness.

Q4: Can 2024 aluminum be welded?
2024 aluminum has poor weldability due to its high copper content, which makes it prone to hot cracking. However, reliable joints can be achieved using specialized processes such as TIG (Tungsten Inert Gas) welding with 4043 filler wire and pure argon gas protection. Before welding, the aluminum surface and any cladding must be removed, and temperature must be controlled below 200°C. For non-load-bearing parts, riveting or switching to a more weldable alloy like 6061 is recommended.

Q5: 2024 Aluminum vs 6061 Aluminum
These two alloys differ significantly in composition and performance. 2024 belongs to the Al-Cu-Mg system, offering higher strength (420–450 MPa) but only moderate corrosion resistance and limited weldability. 6061, on the other hand, is an Al-Mg-Si alloy with lower strength (276–310 MPa) but excellent corrosion resistance and weldability, suitable for anodizing and marine applications. In short, 2024 is preferred for aircraft structures and high-load aerospace parts, while 6061 is ideal for general structural, automotive, and marine applications.

Why Choose Our 2024 Aluminum Bar?

• Full Temper Range: Available in T3, T4, and T351 conditions with customizable lengths.

• Quality Traceability: Each batch includes a heat treatment certificate with full traceability to furnace number and chemical composition.

• Technical Support: Expert assistance with machining parameters and surface finishing (hard anodizing, electroless nickel plating).