Magnesium ZE41A-T5,UNS M16410; Mg; AMS 4439; ASTM B 80; European EN 1753 MC35110 (Ingot UNS M16411),E FOUR

### **Product Datasheet: Magnesium ZE41A-T5 (UNS M16410)** **High-Strength Sand Casting Magnesium Alloy with Rare Earth Elements** --- #### **1. Overview** Magnesium ZE41A-T5 (UNS M16410) is a versatile sand casting alloy that combines zinc and rare earth elements to achieve a favorable balance of strength, castability, and corrosion resistance. Designated in the T5 temper (artificially aged after casting), this alloy offers improved mechanical properties at room temperature while maintaining good pressure tightness and dimensional stability. Its compliance with AMS 4439, ASTM B80, and EN 1753 MC35110 standards makes it a preferred choice for aerospace and high-performance applications where reliability and weight reduction are critical. --- #### **2. Key Features & Advantages** - **Good Strength-to-Weight Ratio:** Optimal mechanical properties for structural applications - **Excellent Castability:** Well-suited for complex sand castings with thin sections - **Good Corrosion Resistance:** Superior to many magnesium-aluminum-zinc alloys - **Pressure Tight:** Minimal microporosity in properly produced castings - **Stable at Moderate Temperatures:** Suitable for applications up to 150°C (300°F) - **Good Machinability:** Can be easily machined to high precision --- #### **3. Chemical Composition (Weight %)** As specified in AMS 4439, ASTM B80, and EN 1753 MC35110: | Element | Mg (Balance) | Zn | Rare Earth (RE) | Zr | Other (max) | |---------------|--------------|------------|-----------------|------------|-------------| | **Content (%)** | - | 3.5-5.0 | 0.75-1.75 | 0.4-1.0 | 0.30 total | *Note: Rare earth elements typically include cerium, lanthanum, neodymium, and praseodymium. Zinc provides solid solution strengthening, while rare earths enhance high-temperature properties and castability.* --- #### **4. Typical Physical & Mechanical Properties (T5 Temper)** | Property | Value | Condition / Remarks | |---------------------------|------------------------------|---------------------| | **Density** | 1.83 g/cm³ (0.066 lb/in³) | | | **Melting Range** | 525-645°C (977-1193°F) | | | **Thermal Conductivity** | 113 W/m·K | At 25°C | | **Specific Heat Capacity**| 1050 J/kg·K | At 25°C | | **Coefficient of Thermal Expansion** | 26.0 × 10⁻⁶/°C | 20-100°C | | **Ultimate Tensile Strength** | 205 MPa (30 ksi) | Room Temperature | | **Tensile Yield Strength**| 140 MPa (20 ksi) | 0.2% offset, RT | | **Elongation** | 3.5% | In 2 inches, RT | | **Compressive Yield Strength** | 140 MPa (20 ksi) | | | **Shear Strength** | 125 MPa (18 ksi) | | | **Fatigue Strength** | 90 MPa (13 ksi) | 5×10⁷ cycles, RT | | **Elastic Modulus** | 45 GPa (6.5×10⁶ psi) | | | **Hardness** | 60-70 HB | | --- #### **5. International Standards & Specifications** ZE41A-T5 is fully certified to the following international standards: - **AMS 4439:** Aerospace Material Specification for Castings - **ASTM B80:** Standard Specification for Magnesium-Alloy Sand Castings - **EN 1753 MC35110:** European Standard Designation - **UNS M16410:** Unified Numbering System (Castings) - **UNS M16411:** Unified Numbering System (Ingot) - **ISO 16220:** Magnesium and magnesium alloys - Castings --- #### **6. Applications** - **Aerospace Components:** - Gearbox housings and transmission cases - Engine accessory housings - Helicopter transmission casings - Wing root fittings and brackets - Door frames and canopy components - **Defense Applications:** - Missile body sections and fins - Radar antenna structures - Military vehicle components - **Industrial Equipment:** - High-speed rotating components - Compressor housings - Electronic equipment enclosures - **Automotive Racing:** - Engine blocks and components - Transmission cases - Suspension components --- #### **7. Heat Treatment & Processing** - **Artificial Aging (T5):** 325°C ± 5°C (617°F ± 9°F) for 2-6 hours - **Casting Methods:** - Sand casting (primary application) - Permanent mold casting - Investment casting for complex components - **Machining:** Excellent machinability with high surface finish capability - **Joining:** Good weldability using TIG methods with compatible filler rods - **Surface Treatment:** Responds well to chemical conversion coatings and anodizing processes --- #### **8. Quality Assurance & Certification** - **Chemical Analysis:** Certified to AMS 4439 requirements - **Mechanical Testing:** Full certification to specified T5 properties - **Radiographic Inspection:** Capable of meeting aerospace quality levels - **Dye Penetrant Testing:** Mandatory for surface defect detection - **Microstructural Control:** Grain size and intermetallic phase distribution monitoring --- **Disclaimer** This technical data is for informational purposes only. ZE41A-T5 is an aerospace-grade alloy requiring strict process controls and certification. Properties may vary depending on casting parameters, section size, and aging conditions. Users must consult the relevant specifications (AMS 4439, ASTM B80, EN 1753 MC35110) and conduct appropriate qualification testing for specific applications. All processing must follow established aerospace quality procedures and magnesium safety protocols.

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 3362 gallon liquid totes Special package is available on request.