Thixomolded AM60A Magnesium， UNS M10600; Mg; ASTM B 94; European EN 1753 MC21230 (Ingot UNS M10601),E FOUR

### **Product Datasheet: Thixomolded® AM60A Magnesium Alloy** **Introduction** Thixomolded® AM60A is a semi-solid molded magnesium alloy processed using Thixomolding® technology, which combines elements of plastic injection molding and metal casting. This advanced manufacturing process produces components with superior microstructural characteristics compared to conventional die casting. The thixotropic behavior of the semi-solid material allows for production of complex, thin-walled components with excellent mechanical properties and dimensional stability. --- #### **1. Chemical Composition (Weight %)** Composition per ASTM B94, EN 1753 MC21230, and UNS M10600/M10601: | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | 5.6 - 6.4 | | **Manganese (Mn)** | 0.26 - 0.50 | | **Zinc (Zn)** | ≤ 0.20 | | **Silicon (Si)** | ≤ 0.08 | | **Copper (Cu)** | ≤ 0.008 | | **Iron (Fe)** | ≤ 0.004 | | **Nickel (Ni)** | ≤ 0.001 | | **Other Elements** | ≤ 0.30 (total) | | **Magnesium (Mg)** | Remainder | --- #### **2. Physical Properties** | Property | Value | |----------|--------| | **Density** | 1.78 g/cm³ (0.064 lb/in³) | | **Solidus Temperature** | 540°C (1004°F) | | **Liquidus Temperature** | 615°C (1139°F) | | **Thixomolding Temperature** | 570 - 590°C (1058 - 1094°F) | | **Thermal Conductivity** | 62 W/m·K | | **Coefficient of Thermal Expansion** | 25.9 µm/m·K (20-100°C) | | **Modulus of Elasticity** | 45 GPa (6.5 × 10⁶ psi) | | **Electrical Resistivity** | 125 nΩ·m | --- #### **3. Mechanical Properties (Thixomolded Condition)** **Room Temperature Properties:** | Property | Value | |----------|--------| | **Tensile Strength, Ultimate** | 240 - 270 MPa (34,800 - 39,200 psi) | | **Tensile Strength, Yield (0.2% Offset)** | 130 - 150 MPa (18,900 - 21,800 psi) | | **Elongation** | 10 - 15% (in 2 inches) | | **Hardness, Brinell** | 65 - 75 HB | | **Fatigue Strength** | 110 - 130 MPa (16,000 - 18,900 psi) | | **Impact Strength (Charpy)** | 6 - 9 J (4.4 - 6.6 ft-lb) | | **Shear Strength** | 155 - 175 MPa (22,500 - 25,400 psi) | **Enhanced Characteristics vs. Conventional Die Casting:** - 10-15% higher tensile and yield strength - 15-25% improved elongation - 20-30% better fatigue performance - Reduced porosity (<0.5% typical) - More consistent mechanical properties --- #### **4. International Standards** **Primary Standards:** - **ASTM**: **B94** - Standard Specification for Magnesium-Alloy Die Castings - **European**: **EN 1753 MC21230** - Magnesium alloy ingots and castings - **UNS**: **M10600** (Components), **M10601** (Ingot) **Additional Recognition:** - **ISO**: **ISO 16220** - Magnesium and magnesium alloys - **SAE**: **J465** - Wrought and Cast Magnesium Alloys - **JIS**: **H 2221** - Magnesium alloy die castings - **DIN**: **1729-2** - Magnesium casting alloys --- #### **5. Product Applications** **Automotive Applications:** - **Steering column components** - **Seat frame structures** - **Instrument panel supports** - **Pedal support assemblies** - **Transmission components** - **Engine brackets and mounts** - **Wheel components** **Electronics & Consumer:** - **Laptop and tablet housings** - **Camera body frames** - **Mobile device enclosures** - **Power tool housings** - **Optical instrument frames** **Aerospace & Defense:** - **Avionics enclosures** - **Military communication devices** - **Aircraft interior components** - **Drone structural components** **Medical Applications:** - **Portable medical device housings** - **Surgical instrument frames** - **Diagnostic equipment components** --- #### **6. Thixomolding® Process Characteristics** **Process Parameters:** - **Material Form**: Magnesium alloy chips/pellets - **Processing Temperature**: 570-590°C (1058-1094°F) - **Solid Fraction**: 40-60% during injection - **Injection Pressure**: 50-100 MPa - **Screw Speed**: 50-200 rpm - **Cycle Time**: 30-90 seconds **Manufacturing Advantages:** - Fine, spherical microstructure (grain size: 20-50 μm) - Reduced gas porosity and shrinkage defects - Excellent dimensional repeatability - Lower thermal shock to molds - Reduced machining requirements - Environmentally friendly (SF₆-free process) --- #### **7. Quality & Performance Features** **Microstructural Advantages:** - Spherical alpha-Mg grains with uniform distribution - Fine beta-phase (Mg₁₇Al₁₂) precipitation - Reduced segregation and banding effects - Homogeneous properties throughout cross-sections **Performance Benefits:** - Improved pressure tightness - Enhanced dynamic load capability - Superior fatigue resistance - Excellent impact strength - Good corrosion resistance (with proper coating) - Consistent mechanical properties --- #### **8. Design Considerations** **Wall Thickness Capability:** - Minimum wall: 1.0 mm - Typical range: 1.5-4.0 mm - Uniform wall distribution recommended **Dimensional Capabilities:** - Tight tolerances: ±0.002 mm/mm - Excellent surface finish: 1-2 μm Ra - Minimal draft angles: 0.5-1.0° - Good for complex geometries and undercuts **Secondary Operations:** - Minimal machining required - Excellent for CNC machining - Good adhesion for coatings - Compatible with all standard Mg finishing processes --- **Technical Notes:** 1. Thixomolded AM60A offers mechanical properties superior to conventional die casting 2. Ideal for thin-walled, complex geometries requiring high integrity 3. Suitable for safety-critical applications due to consistent properties 4. Reduced porosity improves anodizing and plating quality 5. Rapid cycle times comparable to injection molding processes **Disclaimer:** This information describes Thixomolded® AM60A characteristics. Properties may vary based on part design, processing parameters, and wall thickness. Thixomolding® is a proprietary process of Thixomat Inc. Users should conduct application-specific testing and consult current material specifications for design and manufacturing requirements. Always verify compliance with relevant industry standards for specific 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 3279 gallon liquid totes Special package is available on request.