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High-performance ultra-light magnesium-lithium alloys (Mg-Li) with densities as low as 1.35-1.65 g/cm3, 45% lighter than aerospace aluminum. Available in LA43M, LA86M, and LA103M/Z grades across ingots, plates (1-80mm), foils, and bars. Supports Aikerly end-to-end customization and MAO surface treatment.
Magnesium–Lithium Alloy Solutions for Lightweight Structures | Aikerly
Magnesium–Lithium Alloy Solutions for Lightweight Structures | Aikerly
Mg-Li alloys are ideal candidates for ultra-lightweight structures, combining:Lowest density metallic materials,Good mechanical performance and ductility,Versatile processing: extrusion, rolling, stamping.
Choosing the right alloy (LA43M, LA86M, LA103M, LA103Z) requires balancing density, strength, formability, and corrosion resistance according to engineering requirements.
Engineering-grade magnesium–lithium alloys are used for lightweight electronic housings, equipment enclosures, and structural components where low weight, stiffness, and functional performance are important.
Aikerly supports material selection, custom component manufacturing, machining, forming, and surface treatment for magnesium–lithium alloy applications.
Chemical Composition of Mg-Li Alloys
Mg-Li alloys are primarily categorized by their lithium content, which directly influences their crystal structure and mechanical behavior. Below is the composition of the most common commercial alloys:
Table 1 the composition of Mg-Li alloys
Lightest Lightness
Ultra-light magnesium–lithium (Mg–Li) alloy is widely recognized as the lightest structural metallic material available today, with a density of only 1.35–1.65 g/cm³.
It is approximately 45% lighter than aluminum and even 15% lighter than carbon fiber composites.
Table 2 Phase and density of Mg-Li alloys
The lithium content in Mg-Li alloys defines their phase and density, which strongly affects strength and formability:
Li content determines the phase structure, ranging from α-HCP with high strength, through α+β with balanced strength and ductility, to β-BCC with excellent cold formability and ultra-low density.
Beyond weight reduction, magnesium–lithium alloys deliver an exceptional balance of strength, stability, and functional performance, positioning them at the forefront of material innovation for advanced equipment.
Mechanical Properties
Mg-Li alloys are designed to provide a balance of low weight and sufficient mechanical performance:
Table 3 low weight and sufficient mechanical performance of Mg-Li alloys
Key points:
Higher Li content reduces density but also reduces tensile strength and stiffness.
β-phase alloys have excellent formability, suitable for deep drawing and stamping.
Processing Methods
Mg-Li alloys can be processed by several methods depending on phase and lithium content:
Table 4 Processing Methods of Mg-Li alloys
β-phase alloys are highly formable at room temperature, unlike conventional magnesium alloys.
Alloy selection should consider post-processing requirements, as high Li content can increase corrosion susceptibility.
Corrosion and Thermal Behavior
Mg-Li alloys are generally more anodic than aluminum, requiring protective coatings for structural applications.Although high-lithium Mg-Li alloys are relatively stable in their crystal structure, their increased chemical reactivity significantly enhances susceptibility to corrosion. Therefore, in practical applications, it is generally necessary to employ surface coatings, protective layers, or alloy design strategies for comprehensive control, ensuring structural durability and operational safety.
Thermal conductivity is high, facilitating heat dissipation in electronics.
Li-rich alloys (β-phase) maintain good dimensional stability under moderate thermal cycles.
Why Choose Magnesium–Lithium Alloy?
Table 5 Magnesium–Lithium Alloy vs Aluminum vs Carbon Fiber: A Materials Comparison
Performance Advantages vs. Conventional Materials
45% lighter than aluminum, with superior manufacturability compared to carbon fiber
High stiffness: Elastic modulus of 42–45 GPa
Excellent weldability: Compatible with TIG welding, laser welding, and friction stir welding
Electromagnetic shielding: Effective EMI protection for enhanced signal stability
Environmentally sustainable: Fully recyclable, aligned with green manufacturing initiatives
Applications
Mg-Li alloys are widely used in transportation, and portable electronics due to their unique properties:
LA43M: precision instruments.
LA86M: portable electronic housings, lightweight transport components.
LA103M / LA103Z: Ultra-light structural panels, high-formability electronic frames.
Their exceptional strength-to-weight ratio and low density (~1.3–1.4 g/cm³) make them one of the lightest commercially used metallic materials.
End-to-End Solutions We Provide
Material Supply + Precision Manufacturing + Surface Engineering
Available Product Forms
Table 6 Available Product Forms
Minimum Order Quantity (MOQ)：100Kg
Comprehensive Surface Treatment Options
Chemical conversion coating
Micro-arc oxidation (salt spray resistance >1000 hours)
Electroplating / electroless plating
Protective coatings (three-proof coatings, thermal-control coatings)
Inquiry
If you are seeking:
Structural weight reduction for electronic components
Lightweight, thermally efficient housings for high-end electronics
We welcome you to contact us for technical documentation, material samples, or tailored engineering solutions.
This product is solely for civilian use and shall not be used in military or other related fields, and must strictly comply with the Export Control Law.
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