Elektron W16 Magnesium Alloy ，AZ101,E FOUR

### **Elektron W16 / AZ101 Magnesium Alloy** **Product Overview** Elektron W16, commercially designated as AZ101, is a high-strength magnesium-aluminum-zinc casting alloy designed to provide superior mechanical properties while maintaining good castability. As an enhanced version of the AZ91 alloy with higher aluminum content, AZ101 offers improved strength and hardness characteristics, making it suitable for applications requiring high load-bearing capacity and wear resistance. The alloy represents an optimal balance between the excellent castability of the AZ series and enhanced mechanical performance for demanding structural applications. This alloy is typically supplied as sand castings and permanent mold castings, with properties that can be further enhanced through appropriate heat treatment. --- #### **1. Chemical Composition** AZ101 features an elevated aluminum content compared to standard AZ91, contributing to its enhanced strength characteristics. | Element | Composition (% by Weight) | | :---------------- | :-------------------------------- | | **Aluminum (Al)** | 9.5 - 10.5 % | | **Zinc (Zn)** | 0.4 - 1.0 % | | **Manganese (Mn)** | 0.10 - 0.30 % | | **Silicon (Si)** | ≤ 0.08 % | | **Copper (Cu)** | ≤ 0.03 % | | **Iron (Fe)** | ≤ 0.004 % | | **Nickel (Ni)** | ≤ 0.001 % | | **Other Impurities** | ≤ 0.02 % (each) | | **Magnesium (Mg)** | Balance | *Note:* The higher **aluminum** content (compared to AZ91) increases the volume fraction of the hard Mg₁₇Al₁₂ intermetallic phase, resulting in improved strength and hardness. The controlled **zinc** content provides additional solid solution strengthening, while strict limits on **iron, copper, and nickel** ensure good corrosion resistance. --- #### **2. Physical & Mechanical Properties** AZ101 exhibits enhanced strength and hardness while maintaining adequate ductility. **Physical Properties:** * **Density:** 1.81 g/cm³ (0.065 lb/in³) * **Melting Range:** 465 - 590 °C (869 - 1094 °F) * **Coefficient of Thermal Expansion:** 26.2 μm/m·°C (20-200°C) * **Thermal Conductivity:** 52 W/m·K * **Specific Heat Capacity:** 1050 J/kg·K **Typical Mechanical Properties (As-Cast):** * **Ultimate Tensile Strength (UTS):** 240 - 270 MPa (35 - 39 ksi) * **Tensile Yield Strength (TYS):** 160 - 190 MPa (23 - 28 ksi) * **Elongation:** 2 - 5% * **Compressive Yield Strength:** 160 - 190 MPa (23 - 28 ksi) * **Shear Strength:** 140 - 160 MPa (20 - 23 ksi) * **Hardness:** 70 - 80 HBW * **Modulus of Elasticity:** 45 GPa (6.5 × 10³ ksi) **Elevated Temperature Performance:** * **Maintains strength up to approximately 120°C (248°F)** * **Good wear resistance at room temperature** * **Limited creep resistance above 120°C** * **Gradual strength reduction above 150°C** --- #### **3. International Standards & Specifications** AZ101 is recognized by several international standards organizations. * **ASTM International:** **ASTM B80** (Standard Specification for Magnesium-Alloy Sand Castings) * **ASTM International:** **ASTM B93** (Standard Specification for Magnesium-Alloy Die Castings) * **SAE International:** **SAE J465** * **UNS Designation:** **UNS M12100** * **ISO Standards:** **ISO 16220** (Magnesium and magnesium alloys - Castings) * **German Standards:** **DIN MgAl10Zn** * **Proprietary Designation:** **Elektron AZ101** / **W16** (Luxfer MEL Technologies) --- #### **4. Product Applications** AZ101 is primarily used in applications requiring high strength and hardness. * **Automotive Industry:** * **Transmission Housings and Cases** * **Engine Bracket and Mounting Systems** * **High-Stress Structural Components** * **Differential Housings** * **Wheel Hubs and Components** * **Aerospace & Defense:** * **Gearbox Housings** * **Engine Accessory Housings** * **Aircraft Structural Brackets** * **Missile Components** * **Industrial Equipment:** * **Power Tool Housings and Components** * **Compressor Housings** * **Pump Casings and Components** * **High-Stress Machinery Parts** * **Consumer Applications:** * **High-Performance Sporting Goods** * **Professional Equipment Housings** * **Agricultural Machinery Components** --- #### **5. Manufacturing Characteristics** **Casting Performance:** * Good castability with adequate fluidity * Higher tendency for microporosity compared to lower aluminum alloys * Suitable for both sand and permanent mold casting * Requires proper gating and risering design * Good dimensional stability **Secondary Processing:** * Good machinability, though harder than AZ91 * Produces good surface finish * Responsive to heat treatment (T4, T5, T6) * Good response to surface treatments and coatings * Weldable with proper procedures and precautions --- **Summary** **Elektron W16 / AZ101 Magnesium Alloy** represents the high-strength variant in the Mg-Al-Zn alloy system, offering superior **mechanical strength** and **hardness** compared to the more common AZ91 alloy. The elevated **aluminum content** provides enhanced strength characteristics through increased volume of strengthening phases, making it suitable for applications where mechanical loading is the primary design consideration. While the alloy exhibits reduced ductility compared to lower-aluminum alloys, its compliance with international standards including **ASTM B80** and **ASTM B93** ensures reliable performance in structural applications. AZ101 continues to serve important roles in automotive, aerospace, and industrial sectors where its high strength-to-weight ratio and good wear resistance provide significant advantages over other materials, particularly in applications where maximum strength is required within the constraints of weight limitations. The alloy represents an excellent balance between the proven castability of the AZ system and enhanced mechanical performance for demanding applications.

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 3418 gallon liquid totes Special package is available on request.