2618 Aluminum Bar
2618 aluminum is a high-strength, heat-treatable aluminum alloy in the 2000 series. It is highly regarded for its excellent performance at elevated temperatures and is commonly used in aerospace components, high-performance automotive parts (such as pistons), and industrial structures requiring stringent performance. Its design combines excellent strength, toughness, machinability, and reliable thermal stability.
2618 aluminum bars can be produced through forging or extrusion. This alloy has excellent machinability, allowing for both cold and hot working while maintaining a smooth surface finish and precise dimensions.
2618 aluminum is a highly ductile alloy with excellent strength and good corrosion resistance. Its highly machinable characteristics make 2618 aluminum an excellent choice for applications in jet engines, structural components, piping, and motorsport applications.
2618 Aluminum Bar Product Quality Standards
Haomei Aluminum provides high-quality 2618 aluminum bar products. Our product quality is ensured through third-party inspections, buyer inspections, and factory test certificates. Additional certifications can be provided according to customer requirements to ensure quality.
Standard specifications include DIN 3.1924, DTD 717A, and MSRR 8018.
- AMS: 4176 (forgings), 4180 (bars).
- UNS: A92618.
- EN Name: EN AW-2618A (referred to as "corrosion-resistant" in Europe).
- Testing: ASTM E8 (tensile), ASTM E18 (hardness).
2618 Aluminum Bar Material Properties
| Property | Description |
| High-Temperature Resistance | 2618 Aluminum Bar remains stable in environments up to 150°C and can withstand short-term exposure to temperatures up to 250°C, exhibiting exceptional thermal stability. It is suitable for manufacturing aerospace engine components and high-performance racing engine parts exposed to high temperatures. |
| Corrosion Resistance | 2618 Aluminum Bar has relatively poor corrosion resistance and is prone to oxidation and corrosion in harsh environments. Therefore, it is often treated with pure aluminum cladding, anodizing, or other surface treatments to enhance its protective properties and extend its service life. |
Haomei Hot Selling 2618 Aluminum Bar Products
| Product | Description |
| 2618 Aluminum Round Bar | 2618 Aluminum Round Bar offers excellent high-temperature performance and good mechanical strength, widely used in the aerospace and automotive industries for the manufacturing of rotating components such as engine shafts, turbine parts, and high-temperature structural components. |
| 2618 Aluminum Square Bar | 2618 Aluminum Square Bar, with its high strength and heat resistance, is commonly used in the aerospace and automotive sectors to manufacture high-load-bearing components, especially for frame structures and support components. |
| 2618 Forged Aluminum Bar | 2618 Forged Aluminum Bar is processed using forging techniques, further enhancing the material's strength and fatigue resistance. It is often used in high-stress environments such as aerospace engine components and racing engine parts. |
| 2618 Aluminum Extruded Bar | 2618 Aluminum Extruded Bar is manufactured using the extrusion process, ensuring excellent dimensional accuracy and surface quality. It is widely used in aerospace structural components, mechanical parts, and high-temperature automotive applications. |
| 2618 Aluminum Flat Bar | 2618 Aluminum Flat Bar is known for its good thermal conductivity and heat resistance, making it ideal for manufacturing supports, panels, and reinforcements in high-temperature environments. It also has extensive applications in mold making and mechanical processing. |
| 2618 Aluminum Hex Bar | 2618 Aluminum Hex Bar, with its hexagonal cross-section and high-strength characteristics, is widely used in the manufacturing of fasteners, mechanical connectors, and aerospace high-temperature components, providing excellent structural stability. |
2618 Aluminum Bar Applications
| Application Field | Description |
| Aerospace | 2618 Aluminum Bar is widely used in the aerospace industry due to its excellent strength-to-weight ratio and reliable high-temperature performance. It is particularly suitable for manufacturing aircraft structural components and engine parts. Its ability to maintain outstanding mechanical properties in high-temperature environments makes it an ideal choice for turbine blades, turbine disks, combustion chambers, and other critical components. |
| Automotive | 2618 Aluminum Bar is highly favored in the automotive industry for its heat resistance and thermal fatigue resistance, making it especially suitable for manufacturing high-performance engine components, such as forged pistons. Many automotive enthusiasts prefer 2618 aluminum pistons because they can effectively absorb a large amount of heat under extreme temperatures while minimizing damage and deformation, ensuring stable engine operation under high loads. |
| Industrial | 2618 Aluminum Bar is extensively used in the industrial sector for producing forged components, tools, and parts requiring high thermal stability. Its exceptional mechanical and heat-resistant properties make it ideal for applications in high-temperature environments, such as machinery structural parts, mold bases, and industrial equipment subjected to significant stress, ensuring long-term stable operation. |
2618 Aluminum Bar Heat Treatment
- Solution Treatment: Heat to approximately 530°C, followed by rapid quenching.
- Aging: Perform artificial aging at around 190–210°C (T6/T61 temper) for 8–20 hours to enhance strength.
- Overaging (T7): Applied to improve dimensional stability at high temperatures.
2618 Aluminum Bar Corrosion Resistance
| Corrosion Resistance Characteristics | Description |
| Moderate Corrosion Resistance | 2618 Aluminum Bar has moderate corrosion resistance. Compared to the 1000 and 6000 series alloys, its corrosion resistance is relatively weak. In humid or corrosive environments, the surface is prone to oxidation and corrosion, so it is generally not recommended for prolonged use without protection. |
| Requires Protective Coating | Due to its poor corrosion resistance, 2618 Aluminum Bar typically requires surface treatments for enhanced protection in practical applications. Common protective methods include anodizing, painting, or applying specialized anti-corrosion coatings. In harsh environments, a pure aluminum cladding can also be used for additional corrosion resistance. |
| Risk of Stress Corrosion Cracking | Improper heat treatment of 2618 Aluminum Bar may lead to residual stress within the material, increasing the risk of stress corrosion cracking (SCC). This phenomenon is especially significant under the combined effects of high stress and corrosive media. Therefore, strict control of heat treatment processes during manufacturing and use is essential to reduce the risk of cracking. |
2618 Aluminum Bar Availability
Forms: Bars, rods, forgings, and extrusions.
- AL 2618 Round Bar
- AL 2618 Flat Bar
- AL 2618 Rectangular Bar
- AL 2618 Rolled Rings
- AL 2618 Forged Rings
- AL 2618 Disc
OTHER PRODUCT FORMS
- 2618 Aluminum Sheet
- 2618 Aluminum Plate
- 2618 Aluminum Extrusion
- 2618 Aluminum Extrusion angles
- 2618 Aluminum Billet
- 2618 Aluminum Ingot
- 2618 Aluminum Machined Parts
Advantages of 2618 Aluminum Bar
| Advantage | Description |
| High Strength-to-Weight Ratio | 2618 Aluminum Bar has an excellent high strength-to-weight ratio, providing exceptional mechanical strength while maintaining structural lightness. This characteristic is particularly important in the aerospace and automotive industries, helping to improve fuel efficiency and overall performance. |
| Mechanical Performance at High Temperatures | 2618 Aluminum Bar retains stable mechanical performance even in high-temperature environments, maintaining good strength and toughness even under short-term high temperatures of up to 250°C. This makes it widely used in engine components and other high-temperature structural parts. |
| Excellent Creep Resistance | 2618 Aluminum Bar offers outstanding creep resistance, effectively resisting material deformation even under prolonged exposure to high temperatures. This property ensures structural stability and reliability in applications such as aircraft engines, turbines, and high-performance race car engines. |
2618 Aluminum Bar Chemical Composition
AL 2618 is primarily composed of aluminum, copper, iron, magnesium, and nickel.
| Element | Composition (%) |
| Si | 0.10-0.25 |
| Fe | 0.9-1.3 |
| Cu | 1.9-2.7 |
| Mn | - |
| Mg | 1.3-1.8 |
| Ni | 0.9-1.2 |
| Zn | 0.10 |
| Ti | 0.04-0.10 |
| Other | 0.20 |
| Al | Remainder |
2618 Aluminum Bar is a versatile high-strength material specifically designed for environments where high temperatures and mechanical stresses are critical. Its carefully balanced chemical composition and heat-treatable properties make it the material of choice for aerospace, automotive, and other advanced engineering applications, offering both durability and performance.
The mechanical properties of 2618 aluminum bar
| 2618-T6 T6511 aluminum rod | 2618-T8 T8511 aluminum bar | 2618-T1 T62 aluminum rod | |
| Tensile strength Rm/MPa | 375 MPa | 385 MPa | 365 MPa |
| Yield Strength Rp0.2/MPa | 315 MPa | 325 MPa | 305 MPa |
| Elongation % | 6% | 5% | 5% |
2618 Aluminum Bar Manufacturing and Processing
- Machinability: Generally good; due to copper content, it can cause tool wear. Best results are achieved using carbide tools.
- Welding: Challenging (prone to cracking). It is recommended to use 4043 or 2319 filler for TIG welding.
- Forming: Best results in annealed condition; moderate ductility.
Note: 2618 differs from alloys such as 2024 (higher copper content, no Ni/Fe) and 2219 (space applications). Its advantage lies in its high-temperature stability, making it an ideal choice for demanding engineering applications.
