Discontinued (Discontinued) AL6620 Aluminum Magnesium Manganese Zirconium Alloy Powder (AlMgMnZr)

Aluminium-Magnesium-Manganese-Zirconium Alloy Powder (AlMgMnZr) Description

Aluminium-Magnesium-Manganese-Zirconium Alloy Powder (AlMgMnZr) is a lightweight high-performance material comprising an aluminium matrix alloyed with magnesium (Mg, 3-6%), manganese (Mn, 0.5-1.5%) and zirconium (Zr, 0.1-0.4%). Magnesium improves the strength-to-weight ratio and corrosion resistance, while manganese stabilises the grain boundaries and enhances workability. Zirconium contributes to grain refinement and thermal stability by forming fine dispersoids, allowing the alloy to maintain mechanical properties at elevated temperatures (up to 300 °C).

The spherical powder exhibits a narrow particle size distribution (15-53 μm) and high sphericity (>95%), ensuring excellent flowability (angle of repose ≤25°) and uniform packing density. The low oxygen content (<0.1%) minimises oxidation during processing. The alloy achieves a tensile strength of 320-380 MPa and an elongation of 10-15%, balanced by a density of ~2.75 g/cm³.

Microstructurally, Zr-induced Al₃Zr precipitates inhibit grain growth, while Mn mitigates stress corrosion cracking. The homogeneous distribution of intermetallic phases increases hardness (120-140 HV) and fatigue resistance. Thermally, the alloy has a low coefficient of thermal expansion (23.6 × 10⁻⁶/°C) and high thermal conductivity (120-140 W/m-K), ensuring dimensional stability under temperature variations. These properties render AlMgMnZr an effective heat-resistant alloy with excellent mechanical and processing characteristics.

Aluminium-Magnesium-Manganese-Zirconium Alloy Powder (AlMgMnZr) Specification

Properties

Chemical Composition. %

*Theabove product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us.

Aluminium-Magnesium-Manganese-Zirconium Alloy Powder (AlMgMnZr) Applications

1. Aerospace

High-temperature components: for compressor blades in jet engines, combustion chamber casings, etc., which withstand high temperatures of 300°C and exhibit high strength (~380 MPa) and creep resistance.

Light structural parts: fuselage supports, hatch hinges, etc., with a density of only 2.75 g/cm³, significantly reducing fuel consumption.

2. Automotive Industry

High-performance components: Battery carriers and suspension systems for electric vehicles, combining low weight and high fatigue resistance to increase range.

Components for thermal management: radiators, turbocharger housings, demonstrating high thermal conductivity (140 W/m-K) for efficient heat dissipation.

3. Additive Manufacturing (3D Printing)

Complex functional parts: Topology-optimised fuel injectors, custom manifolds that utilise highly spherical powders (particle size 15-53 μm) to ensure low porosity (<0.5%) and fine resolution.

Mould making: Rapid prototyping of high-temperature-resistant injection moulds to shorten production cycles.

4. Energy and Chemical

Corrosion-resistant equipment: Pipeline systems for offshore platforms, cooling systems for nuclear reactors, exhibiting resistance to stress corrosion cracking (Mn/Zr interaction).

Heat exchangers: High-temperature exhaust heat recovery systems, oxidation resistance, and low thermal expansion coefficient (23.6 × 10⁻⁶/°C).

5. Defence and High-End Equipment

Armoured materials: lightweight armoured vehicle hulls with specific strengths exceeding those of conventional steel, balancing protection and mobility.

Rocket components: high-temperature resistant guidance casing tailored to thermal load during supersonic flight.

Aluminium-Magnesium-Manganese-Zirconium Alloy Powder (AlMgMnZr) Packaging

Our products are packaged in custom cartons of various sizes tailored to the dimensions of the material. Small items are securely packaged in PP cartons, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging specifications and use appropriate cushioning materials to provide optimal protection during transportation.

Packaging: Carton, wooden crate, or custom.

Manufacturing Process

1. Testing Procedures

1. Chemical composition analysis - Verified using techniques such as GDMS or XRF to ensure compliance with purity requirements.

Aluminium-Magnesium-Manganese-Zirconium Alloy Powder (AlMgMnZr) FAQ

Q1: What are the main advantages of AlMgMnZr?

A1: High strength (320-380 MPa tensile strength), heat resistance (stable up to 300°C), corrosion resistance, and low weight (density ~2.75 g/cm³).

Q2: Is it suitable for laser-based additive manufacturing (e.g., SLM, DED)?

A2: Yes. It has been optimised for processes such as selective laser melting (SLM) to achieve low porosity (<0.5%) and high resolution for complex geometries.

Q3: What are the storage recommendations?

A3: Store in a dry, inert environment (argon-sealed containers recommended) to avoid oxidation.

Performance Comparison Table with Competitor Products

Related Information

1. Raw Materials - Aluminium (Al)

Aluminium, with the atomic number 13 and symbol Al, is a lightweight, silvery-white metal renowned for its low density (2.70 g/cm³) and excellent corrosion resistance. It has a melting point of 660.3 °C and exhibits high ductility, allowing it to be readily formed into sheets, wires or powders. Aluminium possesses exceptional thermal and electrical conductivity, surpassed only by copper among common metals. As the most abundant metal in the Earth's crust, it is frequently employed in aerospace, construction, packaging, and electronics. Its recyclability (only 5% of the energy required for primary production is needed) further contributes to sustainability. In alloys such as AlMgSc, aluminium serves as the base matrix, ensuring structural integrity while maintaining lightweight properties.

Raw Materials - Magnesium (Mg)

Magnesium, with the atomic number 12 (symbol Mg), is the lightest structural metal with a density of 1.74 g/cm³ and a melting point of 650 °C. It is highly reactive, particularly in powdered form, where it can easily ignite in air. Nevertheless, magnesium offers an excellent strength-to-weight ratio and is biocompatible, making it valuable for biomedical implants. It is extracted from seawater or minerals such as dolomite and is a key alloying element in aluminium-based materials. In AlMgSc alloys, magnesium increases strength and reduces overall weight, although its flammability necessitates careful handling during powder processing.

Raw Materials - Manganese (Mn)

Manganese is a transition metal with atomic number 25, atomic weight 54.94 g/mol, density 7.21 g/cm³, and melting point 1,246°C. It is one of the more common elements in the Earth's crust, occurring frequently as oxides or silicates. Notable properties of manganese include high hardness, good wear resistance, and excellent alloy strengthening characteristics. In aluminium alloys, manganese increases strength, creep resistance, and corrosion resistance through solid solution hardening and the formation of diffuse phases (e.g., Al₆Mn) to refine grains, particularly in saline or acidic environments. Furthermore, manganese mitigates the recrystallisation tendency of aluminium alloys and enhances high-temperature stability. Although it is typically added in small amounts (around 0.5-1.5%), its interaction with magnesium, zirconium, and other elements can significantly optimise the overall performance of the alloy. Manganese plays a crucial role in the steel industry (e.g., high-strength steels, stainless steels) but is also unreplaceable in aluminium-based alloys.

Raw Materials - Zirconium (Zr)

Zirconium is a high-melting-point transition metal with atomic number 40, atomic weight 91.22 g/mol, density 6.52 g/cm³, and melting point 1,855 °C. It commonly occurs in nature in symbiosis with hafnium and requires complex processes for purification. Outstanding properties of zirconium include excellent corrosion resistance (especially in high-temperature steam or acidic environments) and superior neutron absorption, making it a key component in structural materials for nuclear reactors (e.g., zirconium alloy cladding). In aluminium alloys, trace amounts of zirconium (0.1-0.4%) assist in grain refinement, prevent recrystallisation, and enhance the high-temperature strength (up to 300 °C) and fatigue resistance of the alloy by forming nanoscale Al₃Zr precipitates. Additionally, zirconium reduces the thermal expansion coefficient of the alloy and improves dimensional stability, making it suitable for precision components. Despite its high cost, the enhancement of material properties, especially in additive manufacturing for aerospace applications, makes it an important additive in the development of high-end alloys.