Elektron 43 Magnesium Wrought Alloy,E FOUR

### **Product Datasheet: Elektron 43 Magnesium Wrought Alloy** **High-Strength Wrought Magnesium Alloy for Demanding Applications** --- #### **1. Overview** Elektron 43 is a high-performance wrought magnesium alloy belonging to the magnesium-rare earth-zirconium system. Designed for applications requiring excellent strength-to-weight ratio, good corrosion resistance, and maintainance of mechanical properties at elevated temperatures, this alloy is typically available in extruded and forged forms. Elektron 43 combines the lightweight advantages of magnesium with enhanced mechanical properties through strategic rare earth element additions, making it suitable for aerospace, defense, and high-performance automotive applications. --- #### **2. Key Features & Advantages** - **Excellent Strength-to-Weight Ratio:** Superior specific strength compared to many aluminum alloys - **Good Elevated Temperature Performance:** Maintains properties up to 250°C (482°F) - **Fine Grain Structure:** Zirconium addition ensures refined microstructure - **Good Corrosion Resistance:** Enhanced environmental performance - **Excellent Fatigue Properties:** Suitable for dynamic loading applications - **Good Formability:** Can be extruded and forged into complex shapes - **Weldability:** Reparable using standard TIG methods --- #### **3. Chemical Composition (Weight %)** | Element | Magnesium (Balance) | Rare Earth (RE) | Zirconium | Zinc (max) | Other Elements (max) | |---------------|---------------------|-----------------|--------------|--------------|---------------------| | **Content (%)** | - | 3.0-5.0 | 0.4-1.0 | 0.30 | 0.30 total | *Note: Rare earth elements (typically neodymium-rich mischmetal) provide solid solution strengthening and precipitation hardening potential, while zirconium ensures fine, uniform grain structure throughout wrought products.* --- #### **4. Typical Physical & Mechanical Properties** **Physical Properties:** | Property | Value | |---------------------------|------------------------------| | **Density** | 1.81 g/cm³ (0.065 lb/in³) | | **Melting Range** | 545-640°C (1013-1184°F) | | **Thermal Conductivity** | 72 W/m·K | | **Specific Heat Capacity**| 1040 J/kg·K | | **Coefficient of Thermal Expansion** | 25.8 × 10⁻⁶/°C | | **Electrical Resistivity**| 10.8 μΩ·cm | **Mechanical Properties (Typical):** | Property | Extruded Condition | Forged Condition | |---------------------------|-------------------------|-------------------------| | **Ultimate Tensile Strength** | 270-310 MPa (39-45 ksi) | 280-330 MPa (41-48 ksi) | | **Tensile Yield Strength**| 190-230 MPa (28-33 ksi) | 200-250 MPa (29-36 ksi) | | **Elongation** | 8-14% | 7-12% | | **Compressive Yield Strength** | 180-220 MPa (26-32 ksi) | 190-240 MPa (28-35 ksi) | | **Shear Strength** | 160-190 MPa (23-28 ksi) | 170-200 MPa (25-29 ksi) | | **Fatigue Strength** | 130-150 MPa (19-22 ksi) | 140-160 MPa (20-23 ksi) | | **Elastic Modulus** | 45 GPa (6.5×10⁶ psi) | 45 GPa (6.5×10⁶ psi) | | **Hardness** | 70-80 HB | 75-85 HB | | **Impact Toughness** | 7-11 J | 8-12 J | **Elevated Temperature Properties (at 200°C/392°F):** - **Tensile Yield Strength:** 150-180 MPa (22-26 ksi) - **Creep Resistance:** Excellent for magnesium alloys - **Property Retention:** ~75% of room temperature strength --- #### **5. International Standards** Elektron 43 is specified in the following standards: - **ASTM B107/B107M:** Specification for Magnesium-Alloy Extruded Products - **ASTM B91:** Standard Specification for Magnesium-Alloy Forgings - **AMS 4380:** Aerospace Material Specification for Extruded Bars and Shapes - **Proprietary Specifications:** Various OEM and manufacturer standards - **ISO 3116:** Wrought magnesium and magnesium alloys --- #### **6. Applications** **Aerospace & Defense:** - Aircraft structural brackets and fittings - Helicopter transmission components - Missile airframe structures - Satellite structural members - Engine mounting components - Accessory drive housings **High-Performance Automotive:** - Racing transmission cases - High-performance engine components - Sports car chassis elements - Motorcycle frames and swingarms - Competition vehicle components **Industrial Equipment:** - Robotics arm components - High-speed machinery parts - Material handling equipment - Specialized tooling applications - Process industry components **Specialized Applications:** - Nuclear industry components - Medical equipment parts - Portable military equipment - High-performance sporting goods - Specialized instrumentation --- #### **7. Processing & Fabrication** **Extrusion Parameters:** - **Billet Temperature:** 330-400°C (626-752°F) - **Extrusion Ratio:** 15:1 to 30:1 - **Ram Speed:** 1-8 m/min depending on complexity **Forging Conditions:** - **Forging Temperature:** 350-450°C (662-842°F) - **Die Temperature:** 250-350°C (482-662°F) - **Strain Rates:** Moderate to high **Heat Treatment Options:** - **T5 Temper:** Artificial aging at 200°C (392°F) for 16-24 hours - **Stress Relieving:** 250°C (482°F) for 1-2 hours **Machining Characteristics:** - **Machinability:** Excellent - **Cutting Speed:** 300-600 m/min - **Surface Finish:** 0.8-1.6 μm Ra achievable - **Tool Life:** Extended compared to steel **Joining Methods:** - **TIG Welding:** Good with proper filler material - **Adhesive Bonding:** Excellent with surface preparation - **Mechanical Fastening:** Good bearing strength --- #### **8. Quality Assurance** - **Chemical Certification:** Full composition verification - **Mechanical Testing:** Certified mechanical properties - **Ultrasonic Inspection:** Available for critical applications - **Microstructural Control:** Grain size ASTM 8-10 typical - **Traceability:** Full manufacturing history --- **Disclaimer** This technical data represents typical properties for Elektron 43 wrought magnesium alloy. Actual properties may vary based on manufacturing process, section size, and thermal treatment. Users should conduct appropriate testing to verify suitability for specific applications. The alloy requires proper handling and processing according to established magnesium safety protocols. Consultation with materials engineering specialists is recommended for critical 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 3387 gallon liquid totes Special package is available on request.