Magnesium AZ80A-T6, Forged,E FOUR

Product Datasheet: Magnesium Alloy AZ80A-T6 (Forged), UNS M11800** **1. Overview** Magnesium Alloy AZ80A-T6 is a high-strength, heat-treatable wrought magnesium alloy supplied in the forged and artificially aged condition. The **"T6"** temper designation indicates that the material has undergone a three-step process: **Solution Heat Treatment, Quenching, and then Artificial Aging**. This thermal treatment sequence maximizes the alloy's strength and hardness by precipitating intermetallic compounds within the magnesium matrix. Forging this alloy refines its grain structure and aligns it with the contours of the part, resulting in exceptional static and dynamic mechanical properties. AZ80A-T6 is renowned for offering one of the best strength-to-weight ratios among commercially available magnesium alloys, making it a premier choice for critical, lightweight structural components. **2. Key Advantages** * **Exceptional Strength-to-Weight Ratio:** Provides high tensile and yield strength while being approximately 35% lighter than aluminum and 75% lighter than steel. * **Superior Mechanical Properties:** The combination of forging and T6 temper delivers higher strength and hardness compared to the as-fabricated (F) or solution-treated (T4) tempers. * **Good Ductility:** Maintains adequate elongation for most structural applications. * **Excellent Damping Capacity:** Highly effective at absorbing vibrational energy, reducing noise and fatigue in dynamic systems. * **Good Machinability:** Can be machined to high tolerances with an excellent surface finish. **3. Chemical Composition (Weight %)** The composition conforms to major international standards for AZ80A alloy. | Element | Content (%) | Element | Content (%) | | :--- | :--- | :--- | :--- | | **Aluminum (Al)** | 7.8 - 9.2 | **Zinc (Zn)** | 0.2 - 0.8 | | **Manganese (Mn)** | 0.12 - 0.50 | **Silicon (Si)** | ≤ 0.10 | | **Copper (Cu)** | ≤ 0.05 | **Iron (Fe)** | ≤ 0.005 | | **Nickel (Ni)** | ≤ 0.005 | **Other Impurities** | ≤ 0.30 | | **Magnesium (Mg)** | Balance | | | *Note: The strict control of iron, copper, and nickel impurities is critical for ensuring superior corrosion resistance.* **4. Physical & Mechanical Properties (Typical for Forged T6 Temper)** *Note: Properties are directional and will be highest in the direction of primary metal flow during forging.* | Property | Metric Unit | Imperial Unit | | :--- | :--- | :--- | | **Density** | 1.80 g/cm³ | 0.065 lb/in³ | | **Melting Range** | ~ 430 - 590 °C | ~ 806 - 1094 °F | | **Ultimate Tensile Strength (UTS)** | 345 - 380 MPa | 50 - 55 ksi | | **Tensile Yield Strength (0.2% Offset)** | 240 - 275 MPa | 35 - 40 ksi | | **Elongation (in 50 mm / 2 in)** | 5 - 8 % | 5 - 8 % | | **Compressive Yield Strength** | 240 - 275 MPa | 35 - 40 ksi | | **Shear Strength** | ~ 180 - 200 MPa | ~ 26 - 29 ksi | | **Hardness (Brinell)** | 75 - 85 HB | 75 - 85 HB | | **Modulus of Elasticity** | 45 GPa | 6.5 x 10⁶ psi | | **Fatigue Strength (Rotating Beam, 5x10⁸ cycles)** | ~ 140 - 160 MPa | ~ 20 - 23 ksi | **5. International Standards** Magnesium AZ80A-T6 forging stock and forgings are specified in the following standards: * **ASTM International:** * **ASTM B91:** Standard Specification for Magnesium-Alloy Forgings. (This is the primary governing standard). * **ASTM B107/B107M:** Standard Specification for Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire. (Often referenced for forging stock/billets). * **SAE International:** * **SAE AMS 4357:** Covers Magnesium Alloy Forgings (AZ80A-F, T4, and T5 tempers are common; T6 properties are often agreed upon between customer and supplier but meet or exceed base requirements). * **Aerospace Material Specifications:** * Proprietary internal specifications from major aerospace manufacturers (e.g., Boeing, Airbus) often have detailed specifications for AZ80A-T6 forgings. * **Unified Numbering System (UNS):** * **UNS M11800** **6. Product Applications** Forged AZ80A-T6 components are critical in high-performance industries where saving weight directly translates to improved performance, fuel efficiency, and payload capacity. * **Aerospace & Defense:** * Aircraft landing gear wheels and components. * Helicopter rotor hubs, transmission housings, and gearbox parts. * Missile fins, wings, and structural body sections. * Engine accessory mounts and brackets. * **Automotive & Motorsports:** * High-performance racing wheel rims. * Gearbox cases, sequential transmission parts, and clutch housings. * Suspension components such as control arms and uprights. * **Other Industrial Applications:** * High-speed components for textile and packaging machinery. * Housing and parts for portable tools and equipment requiring low inertia. * Components for robotics and automation where weight reduction improves speed and precision. **7. Handling & Considerations** * **Corrosion Protection:** While AZ80A-T6 offers good corrosion resistance for a magnesium alloy, unprotected components are susceptible to corrosion in wet or saline environments. A protective coating system (e.g., chemical conversion coatings like Tagnite or Magoxid, anodizing, paint, or plating) is essential for long-term service. * **Joining:** Best joined by adhesive bonding or mechanical fastening. Specialized techniques are required for welding, and the T6 properties will be lost in the heat-affected zone. * **High-Temperature Use:** Mechanical properties decline significantly at temperatures above approximately 120°C (250°F). Not recommended for prolonged high-temperature service. --- **Disclaimer:** The information provided herein is for reference purposes only. Material properties can vary based on the specific forging process, die design, section size, and supplier. For critical applications, consult the relevant material standards (e.g., ASTM B91) and the component manufacturer for certified test data. ---

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3310 gallon liquid totes Special package is available on request.