4032-O Aluminum alloy,Aluminum 4032-O alloy,E FORU

### **Product Introduction: Aluminum 4032-O Alloy** **Overview** Aluminum 4032-O Alloy is a heat-treatable aluminum-silicon alloy supplied in the annealed (O) temper condition. This silicon-rich alloy contains significant copper, magnesium, and nickel additions, designed to provide good thermal stability and wear resistance. The "O" temper represents the softest state, offering maximum ductility and formability while maintaining the alloy's inherent characteristics for machining and thermal applications. --- ### **1. Chemical Composition (Typical Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Silicon (Si)** | 11.0 - 13.5 | | **Copper (Cu)** | 0.50 - 1.3 | | **Magnesium (Mg)** | 0.8 - 1.3 | | **Iron (Fe)** | ≤ 0.50 | | **Manganese (Mn)** | ≤ 0.10 | | **Nickel (Ni)** | 0.5 - 1.3 | | **Zinc (Zn)** | ≤ 0.25 | | **Chromium (Cr)** | ≤ 0.10 | | **Others (Each)** | ≤ 0.05 | | **Others (Total)** | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.68 g/cm³ | | **Melting Range** | 532 - 571 °C | | **Electrical Conductivity** | 33-38% IACS | | **Thermal Conductivity** | 138-155 W/m·K | | **Coefficient of Thermal Expansion** | 19.5 × 10⁻⁶/°C | | **Modulus of Elasticity** | 79 GPa | | **Specific Heat Capacity** | 0.88 J/g·°C | --- ### **3. Mechanical Properties (O Temper Condition)** | Property | Value Range | |----------|-------------| | **Tensile Strength** | 170-210 MPa | | **Yield Strength (0.2% Offset)** | 95-135 MPa | | **Elongation (in 50mm)** | 6-12% | | **Hardness (Brinell)** | 65-80 HB | | **Shear Strength** | 180-220 MPa | | **Fatigue Strength** | 95-115 MPa | --- ### **4. International Standards** | Standard Body | Designation | |---------------|-------------| | **Aluminum Association (AA)** | AA 4032-O | | **European Standard (EN)** | EN AW-4032-O | | **ISO** | AlSi12CuNiMg (ISO 209) | | **UNS** | A94032 | | **ASTM** | B247 | --- ### **5. Product Applications** **Forging Applications:** - Aircraft piston forgings - Automotive piston pre-forms - Forged machine parts - Engine component blanks - Structural forging stock **Machining Applications:** - Complex machined components - Precision instrument parts - Automotive engine parts - Aerospace components - Industrial machinery parts **Thermal Applications:** - Heat exchanger components - Engine cylinder heads - Brake system components - High-temperature fixtures - Thermal management parts **General Manufacturing:** - Tooling components - Jigs and fixtures - Machine tool elements - Specialized equipment parts - Prototype development --- ### **6. Key Characteristics & Advantages** - **Excellent Machinability**: Superior machining characteristics in annealed condition - **Good Thermal Stability**: Maintains properties at elevated temperatures - **Low Thermal Expansion**: Suitable for precision applications - **High Wear Resistance**: Excellent for moving parts and bearing surfaces - **Good Forgeability**: Can be forged into complex shapes - **Heat Treatable**: Can be precipitation hardened after forming - **Corrosion Resistance**: Adequate for most industrial environments --- ### **7. Special Features in O Temper** **Annealing Characteristics:** - Fully softened condition for maximum formability - Uniform microstructure - Stress-relieved state - Optimal condition for subsequent heat treatment **Manufacturing Advantages:** - Easy to machine with excellent chip formation - Suitable for complex forging operations - Good for cold working and forming - Excellent base material for subsequent heat treatment - Predictable dimensional changes during processing --- ### **8. Processing Recommendations** - **Machining**: Excellent machinability with proper tool geometry - **Forging**: Forge at 370-460°C for optimal results - **Heat Treatment**: Solution treat at 505-515°C followed by aging at 155-165°C - **Forming**: Good formability in O temper for moderate deformation - **Joining**: Can be welded using TIG and MIG methods - **Finishing**: Good surface finish for plating and coating **Disclaimer:** The information provided is for reference purposes only. The O temper condition is optimized for formability and machinability rather than strength. Properties may vary depending on manufacturing processes and product form. For structural applications requiring higher strength, consider heat-treated tempers (T6/T651). Always consult technical data sheets from material suppliers for critical applications and conduct appropriate testing.

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 1747 gallon liquid totes Special package is available on request.