2024-O Aluminum alloy,Aluminum 2024-O alloy,E FORU

### **Aluminum 2024-O Alloy Product Introduction** **Overview** Aluminum 2024-O is the annealed, soft condition of the renowned 2024 aluminum-copper alloy. The "O" temper designation indicates that the material has undergone a full annealing process, resulting in the softest and most ductile state of this high-strength alloy system. This condition provides maximum formability, making it ideal for severe forming operations before final heat treatment to achieve the alloy's characteristic high strength properties. --- #### **1. Chemical Composition** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.8 - 4.9 | | **Magnesium (Mg)** | 1.2 - 1.8 | | **Manganese (Mn)** | 0.30 - 0.9 | | **Iron (Fe)** | ≤ 0.20 | | **Silicon (Si)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.10 | | **Chromium (Cr)** | ≤ 0.10 | | **Other Elements** | ≤ 0.15 total | --- #### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.78 g/cm³ (0.100 lb/in³) | | **Melting Range** | 500°C - 638°C (932°F - 1180°F) | | **Electrical Conductivity** | 35-40% IACS | | **Thermal Conductivity** | 121 W/m·K | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 73.1 GPa (10,600 ksi) | --- #### **3. Mechanical Properties** **Typical Mechanical Properties:** | Property | Value | |----------|-------| | **Tensile Strength** | 180-220 MPa (26-32 ksi) | | **Yield Strength (0.2% Offset)** | 75-100 MPa (11-15 ksi) | | **Elongation in 2 inches** | 15-20% | | **Shear Strength** | 125-150 MPa (18-22 ksi) | | **Brinell Hardness** | 45-55 HB | | **Fatigue Strength** | 90 MPa (13 ksi) | *Note: These properties represent the minimum strength condition. The material must be heat-treated after forming to develop its full strength potential.* --- #### **4. International Standards** | Standard System | Designation | Product Form | |-----------------|-------------|--------------| | **ASTM** | ASTM B209 | Sheet & Plate | | **AMS** | AMS 4035 | Sheet | | **MIL** | MIL-DTL-6075 | Sheet | | **EN** | EN AW-2024A [O] | Sheet/Plate | | **ISO** | ISO 6361 | Wrought Products | --- #### **5. Product Applications** **Primary Applications:** **Aerospace Manufacturing:** - Complex aircraft skin components requiring deep drawing - Intricate fuselage and wing panels - Structural components needing severe forming operations - Prototype aircraft parts **Manufacturing Process Applications:** - Blanks for subsequent heat treatment - Components requiring extensive machining before hardening - Parts needing spinning or severe bending operations - Experimental and development projects **Industrial Applications:** - Custom fabricated components - Complex-shaped industrial parts - Prototype development - Specialized equipment manufacturing --- #### **6. Key Advantages & Considerations** **Advantages:** - ✅ **Maximum Formability:** Excellent ductility for severe forming operations - ✅ **Good Machinability:** Soft condition allows easy machining - ✅ **Weldability:** Better welding characteristics than aged tempers - ✅ **Stress Relief:** Annealed condition minimizes residual stresses - ✅ **Manufacturing Flexibility:** Ideal for complex fabrication sequences **Considerations:** - ⚠️ **Low Strength Condition:** Not suitable for structural applications in "O" temper - ⚠️ **Required Heat Treatment:** Must be solution heat-treated and aged after forming - ⚠️ **Dimensional Changes:** Heat treatment after forming may cause distortion - ⚠️ **Additional Processing:** Requires secondary heat treatment operations - ⚠️ **Temporary State:** "O" temper is a processing condition, not a service condition --- **Manufacturing Workflow** **Typical Production Sequence:** 1. **Material Supply:** Receive 2024-O material 2. **Forming Operations:** Perform all severe forming (deep drawing, bending, stretching) 3. **Solution Heat Treatment:** Heat to 490-500°C (915-932°F) and quench 4. **Aging:** Natural (T4) or artificial (T6, T8) aging to develop strength 5. **Final Machining:** Complete precision machining if required 6. **Service Use:** Component ready for structural application **Heat Treatment Response:** - Readily responds to solution heat treatment and aging - Can achieve T4 properties (420 MPa tensile) after forming - Suitable for various aging treatments depending on application requirements - Consistent property development after proper heat treatment --- **Conclusion** Aluminum 2024-O serves as the essential starting condition for manufacturing complex components from the high-strength 2024 alloy system. Its fully annealed state provides the maximum formability required for severe manufacturing operations that would be impossible with the alloy in its high-strength tempers. While not suitable for direct structural application in the "O" condition, its value lies in enabling the production of intricate components that can subsequently be heat-treated to achieve the excellent strength-to-weight ratio and mechanical properties that make 2024 aluminum indispensable in aerospace and high-performance applications. The material represents the first step in a manufacturing process that culminates in high-strength, precision components for demanding engineering applications.### **Aluminum 2024-O Alloy Product Introduction** **Overview** Aluminum 2024-O is the annealed, soft condition of the renowned 2024 aluminum-copper alloy. The "O" temper designation indicates that the material has undergone a full annealing process, resulting in the softest and most ductile state of this high-strength alloy system. This condition provides maximum formability, making it ideal for severe forming operations before final heat treatment to achieve the alloy's characteristic high strength properties. --- #### **1. Chemical Composition** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Copper (Cu)** | 3.8 - 4.9 | | **Magnesium (Mg)** | 1.2 - 1.8 | | **Manganese (Mn)** | 0.30 - 0.9 | | **Iron (Fe)** | ≤ 0.20 | | **Silicon (Si)** | ≤ 0.15 | | **Zinc (Zn)** | ≤ 0.10 | | **Chromium (Cr)** | ≤ 0.10 | | **Other Elements** | ≤ 0.15 total | --- #### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.78 g/cm³ (0.100 lb/in³) | | **Melting Range** | 500°C - 638°C (932°F - 1180°F) | | **Electrical Conductivity** | 35-40% IACS | | **Thermal Conductivity** | 121 W/m·K | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | | **Modulus of Elasticity** | 73.1 GPa (10,600 ksi) | --- #### **3. Mechanical Properties** **Typical Mechanical Properties:** | Property | Value | |----------|-------| | **Tensile Strength** | 180-220 MPa (26-32 ksi) | | **Yield Strength (0.2% Offset)** | 75-100 MPa (11-15 ksi) | | **Elongation in 2 inches** | 15-20% | | **Shear Strength** | 125-150 MPa (18-22 ksi) | | **Brinell Hardness** | 45-55 HB | | **Fatigue Strength** | 90 MPa (13 ksi) | *Note: These properties represent the minimum strength condition. The material must be heat-treated after forming to develop its full strength potential.* --- #### **4. International Standards** | Standard System | Designation | Product Form | |-----------------|-------------|--------------| | **ASTM** | ASTM B209 | Sheet & Plate | | **AMS** | AMS 4035 | Sheet | | **MIL** | MIL-DTL-6075 | Sheet | | **EN** | EN AW-2024A [O] | Sheet/Plate | | **ISO** | ISO 6361 | Wrought Products | --- #### **5. Product Applications** **Primary Applications:** **Aerospace Manufacturing:** - Complex aircraft skin components requiring deep drawing - Intricate fuselage and wing panels - Structural components needing severe forming operations - Prototype aircraft parts **Manufacturing Process Applications:** - Blanks for subsequent heat treatment - Components requiring extensive machining before hardening - Parts needing spinning or severe bending operations - Experimental and development projects **Industrial Applications:** - Custom fabricated components - Complex-shaped industrial parts - Prototype development - Specialized equipment manufacturing --- #### **6. Key Advantages & Considerations** **Advantages:** - ✅ **Maximum Formability:** Excellent ductility for severe forming operations - ✅ **Good Machinability:** Soft condition allows easy machining - ✅ **Weldability:** Better welding characteristics than aged tempers - ✅ **Stress Relief:** Annealed condition minimizes residual stresses - ✅ **Manufacturing Flexibility:** Ideal for complex fabrication sequences **Considerations:** - ⚠️ **Low Strength Condition:** Not suitable for structural applications in "O" temper - ⚠️ **Required Heat Treatment:** Must be solution heat-treated and aged after forming - ⚠️ **Dimensional Changes:** Heat treatment after forming may cause distortion - ⚠️ **Additional Processing:** Requires secondary heat treatment operations - ⚠️ **Temporary State:** "O" temper is a processing condition, not a service condition --- **Manufacturing Workflow** **Typical Production Sequence:** 1. **Material Supply:** Receive 2024-O material 2. **Forming Operations:** Perform all severe forming (deep drawing, bending, stretching) 3. **Solution Heat Treatment:** Heat to 490-500°C (915-932°F) and quench 4. **Aging:** Natural (T4) or artificial (T6, T8) aging to develop strength 5. **Final Machining:** Complete precision machining if required 6. **Service Use:** Component ready for structural application **Heat Treatment Response:** - Readily responds to solution heat treatment and aging - Can achieve T4 properties (420 MPa tensile) after forming - Suitable for various aging treatments depending on application requirements - Consistent property development after proper heat treatment --- **Conclusion** Aluminum 2024-O serves as the essential starting condition for manufacturing complex components from the high-strength 2024 alloy system. Its fully annealed state provides the maximum formability required for severe manufacturing operations that would be impossible with the alloy in its high-strength tempers. While not suitable for direct structural application in the "O" condition, its value lies in enabling the production of intricate components that can subsequently be heat-treated to achieve the excellent strength-to-weight ratio and mechanical properties that make 2024 aluminum indispensable in aerospace and high-performance applications. The material represents the first step in a manufacturing process that culminates in high-strength, precision components for demanding engineering 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 1541 gallon liquid totes Special package is available on request.