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Material Type: Wrought aluminum-copper-magnesium alloy
Temper Options: T3, T4, T6, T651
Melting Point: ~502°C
Modulus of Elasticity: 73 GPa
Thermal Conductivity: 121 W/m·K
Origin: China
Transport Package: Standard Export Package
LY12 Aluminum Alloy is a high-strength, heat-treatable aluminum-copper-magnesium alloy, equivalent to 2024 aluminum, widely used in aerospace, transportation, and mechanical engineering. It offers a balanced combination of excellent mechanical strength, good fatigue resistance, and reliable machinability, making it ideal for critical load-bearing structures where both performance and durability are essential.
High Strength: Outstanding tensile and yield strength after heat treatment.
Good Fatigue Resistance: Maintains reliability under cyclic loading.
Excellent Machinability: Suitable for precision machining and forming.
Moderate Corrosion Resistance: Can be improved with surface treatment or anodizing.
Heat Treatable: Commonly used in T4, T6, and T651 tempers for enhanced properties.
| Property | Typical Value |
|---|---|
| Tensile Strength | 420–470 MPa |
| Yield Strength (0.2%) | 260–320 MPa |
| Elongation | 10–18% |
| Hardness | 120 HB |
| Density | 2.78 g/cm³ |
| Element | Cu | Mg | Mn | Fe | Si | Zn | Ti | Cr | Al |
|---|---|---|---|---|---|---|---|---|---|
| Typical | 3.8–4.9 | 1.2–1.8 | 0.3–0.9 | ≤0.5 | ≤0.5 | ≤0.25 | ≤0.15 | ≤0.1 | Balance |
Aerospace Industry: Aircraft fuselage, wings, and structural components.
Automotive: Frames, wheel hubs, and suspension parts.
Marine Engineering: Lightweight high-strength structures.
Machinery: Tools, molds, and mechanical parts.
Transportation: Railway and shipbuilding materials.
Excellent strength-to-weight ratio.
Reliable performance under fatigue and stress.
Easy to machine and form into complex parts.
Widely recognized and interchangeable with 2024 aluminum.
LY12 Aluminum Alloy provides high strength, excellent fatigue resistance, and good machinability, making it one of the most trusted materials for aerospace and mechanical applications. Its proven performance ensures long-term structural reliability and consistent quality across industries.
