2024 T851 Aluminum Round Bar

2024 T851 aluminum round bar is a high-strength aluminum alloy that has been precisely heat-treated, making it particularly suitable for aerospace, automotive, mechanical, and industrial applications that require resistance to high loads and stresses.

The T851 condition of 2024 aluminum alloy is achieved through solution heat treatment, artificial aging, and stress relief stretching, offering higher strength, hardness, and stability, while also improving fatigue resistance and stress tolerance. Although its corrosion resistance is relatively weak, it remains the material of choice for many load-bearing and critical structural components.

2024 T851 Aluminum

The T851 condition is the result of further stress relief stretching after the T6 heat treatment. This process removes internal stresses in the aluminum alloy, reducing the risk of deformation and enhancing the material's stability.

• High Strength: 2024 T851 aluminum alloy is one of the highest strength alloys, suitable for use in high-stress environments.
• Good Hardness: This material has a high hardness, effectively resisting wear and plastic deformation.
• Corrosion Resistance: While 2024 aluminum alloy has relatively poor corrosion resistance compared to other alloys (such as the 5xxx series), the alloy in T851 condition still provides adequate corrosion resistance for some applications.

2024 T851 Aluminum Round Bar Specifications

• ASTM B221
• AMS 4339B
• AMS QQ A 225/6

2024 T851 Aluminum Round Bar Characteristics

• Extremely High Strength: 2024 T851 aluminum round bars are commonly used in applications that require bearing heavy loads.
• Good Fatigue Strength: Suitable for environments subject to frequent, repetitive loading.
• Low Density: Retains the lightweight properties of aluminum, making it ideal for aerospace applications requiring lightweight materials.
• High Stability: The stress relief stretching process removes internal stresses, preventing deformation due to stress concentration during use.

2024 T851 Aluminum Round Bar Applications

Aerospace: 2024 T851 aluminum round bar is widely used in the aerospace industry, especially for critical structural components that bear high stresses. Common applications include:

Aircraft fuselage and wing spars

Aircraft frame structures

Cabin and load-bearing components

Precision Parts Manufacturing: This alloy is also suitable for manufacturing precision parts that endure significant loads, such as:

Aircraft engine housings

Ducts and onboard equipment

High-strength fasteners

Automotive Industry: In high-performance vehicles, it is used to manufacture parts that require high strength and wear resistance, such as suspension systems, wheel hubs, and safety components.

Machinery and Industrial Applications: In heavy machinery and industrial equipment, 2024 T851 aluminum round bars are used in high-strength load-bearing components.

2024 T851 Aluminum Round Bar Machinability

• Machining: After proper heat treatment, 2024 T851 aluminum round bars can be processed using conventional machining methods such as milling, turning, and drilling. However, its higher strength may lead to accelerated tool wear.
• Weldability: Although 2024 aluminum alloy has poor weldability, it can still meet the needs of some high-strength structures when appropriate welding techniques (such as TIG welding for aluminum alloys) are used.

2024 T851 aluminum round bar is an ideal high-strength, fatigue-resistant material widely used in critical structural and load-bearing components in the aerospace, automotive, and industrial fields. Its enhanced performance after T851 heat treatment provides excellent stability and durability in high-stress environments.

Select length below or Custom Cut

• 12" (1 ft.)
• 24" (2 ft.)
• 36" (3 ft.)
• 48" (4 ft.)
• 60" (5 ft.)
• 72" (6 ft.)
• Custom cuts supported

2024 T851 Aluminum Mechanical Properties

Chemistry Information 2024 Aluminum

2024 T851 Aluminum Round Bar Stock List