Magnesium AZ21X1-F,UNS M11210; Mg,E FOUR

**Product Datasheet: Magnesium Alloy AZ21X1-F (UNS M11210)** **1.0 General Overview** Magnesium Alloy AZ21X1-F is a wrought magnesium alloy primarily supplied in the form of extruded rods, bars, shapes, and tubes. The "F" temper designation indicates that it is in the as-fabricated condition. This alloy is known for its excellent combination of moderate strength, good ductility, and superior corrosion resistance compared to many other magnesium alloys. It offers a very high strength-to-weight ratio, making it an ideal choice for lightweight structural applications. **2.0 Chemical Composition (Weight % - Typical)** The chemical composition conforms to major international standards. The following table outlines the typical and maximum allowable percentages. | Element | Minimum (%) | Maximum (%) | Typical (%) | | :------ | :---------- | :---------- | :---------- | | Aluminum (Al) | 1.70 | 2.50 | 2.10 | | Zinc (Zn) | 0.40 | 1.00 | 0.70 | | Manganese (Mn) | 0.15 | 0.55 | 0.30 | | Silicon (Si) | - | 0.08 | 0.05 | | Copper (Cu) | - | 0.04 | 0.01 | | Iron (Fe) | - | 0.04 | 0.01 | | Nickel (Ni) | - | 0.005 | 0.001 | | Other Impurities | - | 0.30 | - | | **Magnesium (Mg)** | **Balance** | **Balance** | **Balance** | *Note: The composition is carefully controlled to minimize impurities like Fe, Cu, and Ni to enhance corrosion resistance.* **3.0 Physical Properties** | Property | Value (Metric) | Value (Imperial) | | :--- | :--- | :--- | | Density | 1.77 g/cm³ | 0.0639 lb/in³ | | Melting Range | ~605 - 630 °C | ~1121 - 1166 °F | | Thermal Conductivity | 105 W/m·K (at 25°C) | 728 BTU·in/(hr·ft²·°F) | | Electrical Resistivity | 12.5 nΩ·m | 12.5 μΩ·cm | | Modulus of Elasticity (Tension) | 45 GPa | 6.5 x 10⁶ psi | | Coefficient of Thermal Expansion (20-100°C) | 26.8 μm/m·°C | 14.9 μin/in·°F | **4.0 Mechanical Properties (Typical for Extruded Sections)** Properties are typical for sections up to 25 mm (1 inch) thickness and may vary with section size. | Property | Value (Metric) | Value (Imperial) | | :--- | :--- | :--- | | Ultimate Tensile Strength | 220 - 255 MPa | 32,000 - 37,000 psi | | Tensile Yield Strength (0.2% Offset) | 145 - 180 MPa | 21,000 - 26,000 psi | | Compressive Yield Strength | 70 - 110 MPa | 10,000 - 16,000 psi | | Elongation at Break (in 50 mm) | 8 - 12 % | 8 - 12 % | | Hardness (Brinell, 500 kg load) | 45 - 50 HB | 45 - 50 HB | | Shear Strength | 130 - 140 MPa | 19,000 - 20,300 psi | | Fatigue Strength (Rotating Beam, 5x10⁸ cycles) | 90 - 110 MPa | 13,000 - 16,000 psi | **5.0 Key Characteristics & Advantages** * **Lightweight:** Extremely low density, offering the highest strength-to-weight ratio of all structural metals. * **Good Corrosion Resistance:** Superior to many standard magnesium alloys like AZ31 in certain environments, due to tighter control of impurities. * **Excellent Machinability:** Can be machined at very high speeds with low power consumption, producing small, clean chips. * **Good Damping Capacity:** Effectively absorbs vibration and noise. * **High Thermal Conductivity.** * **Good Ductility and Formability** in the as-fabricated condition. **6.0 Product Applications** Magnesium Alloy AZ21X1-F is used in a wide range of industries where weight reduction is critical: * **Aerospace:** Interior components, seat frames, brackets, and electronic housing. * **Automotive:** Steering column components, gearbox housings, pedal brackets, and seat frames. * **Electronics:** Housings for laptops, cameras, and portable power tools (where EMI shielding is a benefit). * **Industrial:** Jigs, fixtures, and material handling equipment for lightweight automation. * **Sporting Goods:** Bicycle frames, archery bows, and climbing equipment. **7.0 International Standard Designations** AZ21X1-F (UNS M11210) is recognized under various standard systems: * **ASTM:** ASTM B107/B107M (Specification for Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire) * **UNS:** UNS M11210 * **SAE:** AMS 4354 (Aerospace Material Specification) * **EN / European:** Mg-Al2Zn1 (EN 1753:1997 - Designation System) * **ISO:** ISO 3116:2007 (Wrought magnesium and magnesium alloys) **8.0 Fabrication & Handling** * **Machining:** Excellent machinability. Use sharp tools, positive rake angles, and adequate cooling/lubrication (often mineral spirits or air blast). * **Joining:** Can be welded using Tungsten Inert Gas (TIG) methods. Also suitable for adhesive bonding and mechanical fastening. * **Surface Treatment:** To further enhance corrosion resistance and for aesthetic purposes, surfaces can be chemically treated (e.g., chrome pickle, phosphate), anodized (e.g., Magoxid-Coat, Tagnite, Anomag), or painted/powder coated. * **Safety:** Machining and grinding can produce flammable chips and dust. Proper dust collection systems and adherence to safety protocols for handling combustible metals are mandatory. **Disclaimer** The information provided in this datasheet is typical and for informational purposes only. It is not a substitute for specific technical advice. Mechanical and physical properties can vary based on manufacturing process, section size, and heat treatment. Users should conduct their own tests to verify the suitability of this material for a specific application. **[End of Document Content]**

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 3289 gallon liquid totes Special package is available on request.