About Alloy
2618 aluminum alloy is a precipitation-hardening alloy containing primarily aluminum, copper, and magnesium. It is renowned for its exceptional strength at elevated temperatures, making it suitable for critical applications in aerospace, motorsports, and other industries where high performance under stress is required.
High Strength: 2618 alloy exhibits high strength properties, particularly at elevated temperatures. This makes it ideal for components subjected to high stresses in demanding environments.
Heat Resistance: It retains its mechanical properties at temperatures up to 300°C (572°F) and maintains good performance even at higher temperatures, which is crucial for applications in engines and aerospace structures.
Good Weldability: Despite its strength, 2618 aluminum alloy offers good weldability, enabling manufacturers to fabricate complex structures and components.
Corrosion Resistance: It provides moderate corrosion resistance, though not as high as some other aluminum alloys like 7075.
Product Form
DTD 717A T6 Forging Stock and Forgings
DTD 731B T6 Forging Stock and Forgings
DTD 745A T6 Forging Stock and Forgings
DTD 5070B Clad Sheet and Strip (DTD5070)
DTD 5014 A Bars and Sections (DTD5014)
DTD 5084A T6 Forging Stock and Forgings
MSRR 8018
MSRR 8016 Plate
BS Pre-1980 H16
CM001-1 T6
CM001-3 H28
Hiduminium 58
GB-D19S
SO7-1103 (S07-1103)
A-U2GN
UNI 9002/6
L-3171
AIRBUS - ABM1-1006
BAEM 1101 and BAEM 1103
MM 0531
AIR 9048.640 T351, T851
AIR 9051A
AIR 9048.150
AIR 9048.170 CLAD SHEET
AIR 9048.640
Werkstoff Nr. 3.1924 T651
AECMA
EN 2123 T351, T851
EN 3553 T6511 BAR
ASN-A-3355
ASN-A-3357
CCT LA 767
Chemical Composition
| Weight% | Al | Si | Fe | Cu | Mn | Mg | Ni | Zn | Ti | Zr + Ti | Other Each | Others Total |
| Alloy 2618 USA | Rem | 0.10-0.25 | 0.9-1.3 | 1.9-2.7 | - | 1.3-1.8 | 0.9-1.2 | 0.10 max | 0.04-0.10 | - | 0.05 max | 0.15 max |
| Alloy 2618A EAA | Rem | 0.15-0.25 | 0.9-1.4 | 1.8-2.7 | 0.25 max | 1.2-1.8 | 0.8-1.4 | 0.15 max | 0.20 max | 0.25 max | 0.05 max | 0.15 max |
Property
| Material | Size | Diameter (mm) | Tensile Strength min (N/mm²) | Yield Strength min (N/mm²) | Elongation in 50 mm % |
| Alloy 2618A | Extruded Bar | <10 | 400 | 320 | 5 |
| Alloy 2618 | Extruded Bar | 10-100 | 420 | 340 | 7 |
Application
2618A aluminum alloy, a variant of 2618 aluminum, shares many of the same properties and applications due to its similar composition. Here are some common applications of 2618A aluminum alloy:
Aerospace Components:
Pistons: Both 2618 and 2618A alloys are commonly used in the manufacturing of pistons for high-performance aircraft engines. Their high strength and heat resistance make them suitable for withstanding the demanding conditions of aviation.
Connecting Rods: These alloys are also utilized in connecting rods within aerospace engines, where durability and reliability are critical.
Motorsports:
Engine Components: In racing and high-performance automotive applications, 2618A aluminum alloy is often chosen for pistons and connecting rods due to its ability to maintain strength and performance under extreme temperatures and stress.
Industrial Equipment:
High-Strength Structural Components: 2618A alloy is used in industrial applications where components require high strength and reliability, particularly in environments where elevated temperatures are present.
Military Applications:
Weapon Systems: The alloy's strength and thermal stability make it suitable for certain military applications, including components for weapons systems where performance under stress and harsh conditions is crucial.
Marine Industry:
Marine Components: Some marine applications also benefit from the use of 2618A alloy, especially where corrosion resistance and high strength-to-weight ratio are advantageous.
Sports Equipment:
Bicycles and Sporting Goods: In the sporting goods industry, particularly for bicycles and other equipment where lightweight, durable materials are necessary, 2618A aluminum alloy can be used for frames and components.
High-Performance Engineering:
Custom Engineering Solutions: In custom engineering projects where specific strength and temperature requirements must be met, 2618A aluminum alloy provides a versatile solution.
Overall, 2618A aluminum alloy is favored in applications that demand superior strength, heat resistance, and reliability under stress. Its properties make it a valuable material in industries where performance and durability are paramount.
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