Magnesium AS41A-F, Die Cast，UNS M10410; Mg; ASTM B 94; European EN 1753 MC 21320 (Ingot UNS M10411),E FOUR

**Product Data Sheet: Magnesium AS41A-F, Die Cast** **UNS M10410; ASTM B94; EN 1753 MC21320 (Ingot UNS M10411)** --- **1. Overview** Magnesium AS41A-F is a high-temperature magnesium-aluminum-silicon die casting alloy specifically formulated for applications requiring excellent creep resistance at elevated temperatures. The alloy's composition promotes the formation of thermally stable magnesium silicide (Mg₂Si) precipitates, providing superior performance in automotive powertrain components and other high-temperature applications. --- **2. International Standards** - **ASTM**: B94 (Die Castings) - **UNS**: M10410 (Castings), M10411 (Ingot) - **EN**: 1753 MC21320 - **ISO**: 16220 - **SAE**: J465 - **DIN**: MgAl4Si - **JIS**: H 5303 - **GB/T**: 19078 --- **3. Chemical Composition (wt%)** | Element | Minimum | Maximum | |------------------|--------------|--------------| | Magnesium (Mg) | Balance | Balance | | Aluminum (Al) | 3.5 | 4.5 | | Silicon (Si) | 0.6 | 1.0 | | Manganese (Mn) | 0.20 | 0.40 | | Zinc (Zn) | – | 0.10 | | Copper (Cu) | – | 0.05 | | Iron (Fe) | – | 0.004 | | Nickel (Ni) | – | 0.005 | | Other Impurities | – | 0.30 | --- **4. Physical Properties** | Property | Value | |-------------------------------|---------------------------------| | Density | 1.77 g/cm³ (0.064 lb/in³) | | Melting Range | 565-610°C (1049-1130°F) | | Thermal Conductivity | 76 W/m·K (at 25°C) | | Electrical Resistivity | 11.2 nΩ·m | | Coefficient of Thermal Expansion | 26.0 μm/m·°C (20-100°C) | | Specific Heat Capacity | 1050 J/kg·K | | Solidification Shrinkage | 4.0% | --- **5. Mechanical Properties (As-Die Cast)** | Property | Value (20°C) | Value (150°C) | |-------------------------------|---------------------|---------------------| | Tensile Strength | 185-205 MPa | 130-150 MPa | | Yield Strength (0.2% Offset) | 105-125 MPa | 80-95 MPa | | Elongation (% in 50 mm) | 8-12% | 12-18% | | Hardness (Brinell) | 56-62 HB | 40-46 HB | | Fatigue Strength | 80-90 MPa | 55-65 MPa | | Modulus of Elasticity | 45 GPa | 42 GPa | | Compressive Yield Strength | 105-125 MPa | 80-95 MPa | --- **6. High-Temperature Performance** - Maximum continuous service temperature: 175°C (347°F) - 100-hour creep strength (150°C): 55 MPa - 1000-hour creep strength (150°C): 40 MPa - Excellent thermal stability - Good resistance to thermal cycling --- **7. Die Casting Characteristics** - Good fluidity and mold filling capability - Suitable for wall thicknesses: 2.5-5.0 mm - Moderate hot tearing resistance - Good die soldering resistance - Cycle time: 25-45 seconds - Surface finish: Ra 0.7-1.1 μm --- **8. Typical Die Casting Parameters** - Melt Temperature: 660-690°C (1220-1274°F) - Die Temperature: 220-280°C (428-536°F) - Injection Pressure: 50-90 MPa (7250-13050 psi) - Gate Velocity: 35-65 m/s - Intensification Pressure: 70-110 MPa (10150-15950 psi) --- **9. Applications** - **Automotive Powertrain**: Transmission cases, engine blocks, oil pans - **Automotive Components**: Intake manifolds, thermostat housings, engine brackets - **Aerospace**: Gearbox components, accessory drive housings - **Industrial**: Pump casings, compressor housings, high-temperature machinery parts - **Electronics**: Power supply housings, motor end shields --- **10. Corrosion Resistance** - Good atmospheric corrosion resistance - Enhanced high-temperature oxidation resistance - Suitable for automotive under-hood applications - Compatible with standard protective treatments: - Chromate conversion coatings - Anodizing processes - E-coating systems - Powder coating --- **11. Fabrication & Secondary Operations** - **Machining**: Good machinability with proper tool geometry - **Joining**: Excellent for adhesive bonding and mechanical fastening - **Welding**: TIG welding possible with specialized filler wire - **Finishing**: Good response to all standard surface treatments --- **12. Key Advantages** - Excellent creep resistance at 120-175°C - Good balance of room temperature and high-temperature properties - Superior thermal stability compared to AZ and AM series alloys - Good castability for complex components - Excellent strength-to-weight ratio at elevated temperatures - Good vibration damping characteristics --- **13. Design Considerations** - Ideal for components operating at 120-175°C under sustained load - Suitable for automotive powertrain applications - Good for parts requiring thermal cycling resistance - Higher aluminum content provides better castability than AS21 - Optimal for applications requiring both strength and creep resistance --- **14. Quality Assurance & Testing** - Chemical analysis per ASTM E1097 - Mechanical testing per ASTM B557 - High-temperature testing per ASTM E21 - Creep and stress rupture testing per ASTM E139 - Radiographic inspection per ASTM E505 - Pressure tightness testing --- **15. Comparative Performance** | Property (at 150°C) | AS41A-F | AS21-F | AZ91D | |-----------------------------|-------------|-------------|-------------| | Tensile Strength (MPa) | 130-150 | 125-145 | 80-100 | | 100-h Creep Strength (MPa) | 55 | 50 | 25 | | Room Temp Yield (MPa) | 105-125 | 95-115 | 150-165 | | Castability | Very Good | Good | Excellent | | High-Temp Performance | Excellent | Very Good | Fair | --- *Note: Mechanical properties are typical for wall thicknesses of 3-5 mm. Performance may vary based on specific casting parameters, component design, and production conditions. For critical applications, validation testing under actual service conditions is recommended. Consult with materials engineers for application-specific design guidance.*

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 3284 gallon liquid totes Special package is available on request.