2618
Aluminium: Premium Alloy for Aerospace & High-Performance Components
2618 aluminium is a high-strength, heat-treatable wrought alloy primarily composed of aluminium, copper, magnesium, and iron. It belongs to the 2xxx series, which are known for their superior mechanical strength, excellent fatigue resistance, and ability to retain structural integrity at elevated temperatures. Unlike most standard aluminium alloys, 2618 is specifically engineered for aerospace, motorsport, and high-performance industrial applications where strength, thermal stability, and stress endurance are critical. This alloy exhibits exceptional tensile and yield strength even at temperatures exceeding 150°C, making it suitable for use in highly loaded components such as aerospace pistons, compressor rotors, turbine housings, and connecting rods. It maintains dimensional stability under cyclic thermal loads, reducing the risk of fatigue failure in demanding conditions.
Overview of 2618 Aluminium Alloy
2618 aluminium is a copper-based alloy, primarily used in high-performance applications that demand both strength and lightweight properties. It is often employed for critical parts in aerospace engines, aircraft components, and automotive pistons.
With excellent machinability and strong resistance to thermal stress, 2618 aluminium remains highly suitable for complex machining operationswhile maintaining exceptional mechanical properties even under high-temperature conditions.
Chemical Composition of 2618 Aluminium
The chemical composition of 2618 aluminium ensures superior performance under demanding conditions:
| Element | Composition (%) |
|---|---|
| Aluminium (Al) | Balance |
| Copper (Cu) | 1.9 – 2.7% |
| Silicon (Si) | 0.25% |
| Iron (Fe) | 0.9 – 1.3% |
| Magnesium (Mg) | 1.3 – 1.8% |
| Nickel (Ni) | 0.9 – 1.2% |
| Titanium (Ti) | 0.04 – 0.1% |
| Zinc (Zn) | 0.0 – 0.1% |
Mechanical Properties of 2618 Aluminium
| Property | Value |
|---|---|
| Tensile Strength | 372 MPa (min), 441 MPa (ultimate) |
| Yield Strength | 340 MPa (min) |
| Elongation | 7% |
| Fatigue Strength | 124 MPa |
| Density | 2.75 g/cm³ |
| Melting Point | 549–638 °C |
| Thermal Conductivity | 146 W/m·K |
Equivalents to grade 2618
| Country - Japan | Standard - JIS H4140 | Grade - 2618 |
Applications of 2618 Aluminium
Due to its high strength, machinability, and resilience at elevated temperatures, 2618 aluminium is widely used in industries where performance under stress and heat is critical.
Aerospace
2618 aluminium is extensively used in aerospace for its exceptional strength-to-weight ratio and ability to retain mechanical properties under high temperatures. Typical applications include engine components, aircraft frames, and turbocharger impellers.
Defense
In the defense sector, 2618 aluminium is used for structural parts in military vehicles, weapon housings, and other critical applications where high strength and durability are essential.
Automotive
Automotive industries utilize 2618 aluminium for high-performance engine components such as pistons and connecting rods that must endure extreme heat and pressure during operation.
Industrial
In industrial environments, 2618 aluminium is chosen for parts requiring high fatigue resistance and excellent performance under sustained stress or elevated temperatures.
2618 Japan Aluminium alloy: Equivalent Grades for Russia, Ukraine, Belarus, Kazakhstan...
2618 Aluminium T851 and T6 Temper
The T851 temper of 2618 aluminium is widely used in aerospace and military applications where high strength and heat resistance are essential. It undergoes solution treatment followed by artificial aging, enhancing mechanical performance and reliability in critical structural components.
T851 Temper
Known for its superior strength and toughness, the T851 temper is preferred in demanding aerospace applications such as aircraft frames, engine components, and structural fittings. It provides an optimal balance between heat resistance and mechanical stability.
T6 Temper
The T6 temper is solution heat-treated and artificially aged to achieve excellent hardness, durability, and dimensional stability. It is used where components must withstand sustained loads and high operational temperatures without loss of performance.
Why Choose 2618 Aluminium?
2618 aluminium is known for its balance of strength, fatigue resistance, and workability, making it an ideal alloy for industries that demand performance under high stress and heat.
High Strength at Elevated Temperatures
Ideal for components exposed to high heat such as aerospace engines and automotive parts.
Fatigue Resistance
Perfect for parts subjected to cyclic stress, ensuring long-term reliability and durability.
Good Machinability
Allows precise fabrication of complex shapes and critical components without difficulty.
Heat Treatable
Can be heat treated to enhance mechanical properties and overall performance.
Why Choose Russian Metals for 2618 Aluminium?
At Russian Metals, we take pride in providing reliable, high-performance 2618 aluminium that meets the quality and precision demands of modern engineering and manufacturing industries.
High-Quality Materials
We supply premium 2618 aluminium in various tempers and sizes to meet the most stringent aerospace, defense, and industrial standards.
Expert Consultation
Our experienced team assists you in selecting the right aluminium alloy and temper based on your specific design and performance requirements.
Global Delivery
We ensure timely and secure delivery with fast logistics support across India and international markets, meeting your project timelines efficiently.
Competitive Pricing
Get exceptional value for high-performance 2618 aluminium rods, plates, and round bars without compromising on quality.
Contact Us for 2618 Aluminum Orders
For more information or to place an order, contact Russian Metals today. We specialize in providing the best quality GOST 2618 aluminum at competitive prices for industrial, defense, and aerospace applications.