Alclad 3003-O Aluminum alloy,Aluminum 3003-O alloy,E FORU

### **Alclad 3003-O Aluminum Alloy Product Introduction** **Alclad 3003-O** is an annealed aluminum composite material featuring a **3003 alloy core** in the **O temper** (fully annealed) condition with a metallurgically bonded pure aluminum cladding. This combination provides maximum formability and ductility while maintaining the exceptional corrosion resistance of the Alclad coating. The material is specifically designed for applications requiring severe forming operations, deep drawing, and spinning, where maximum workability is essential. --- #### **1. Chemical Composition** * **Core Alloy (3003):** | Element | Content (%) | | :--- | :--- | | **Manganese (Mn)** | 1.0 - 1.5 | | **Copper (Cu)** | 0.05 - 0.20 | | **Iron (Fe)** | 0.7 max | | **Silicon (Si)** | 0.6 max | | **Zinc (Zn)** | 0.10 max | | **Other Elements** | each 0.05 max | | **Aluminum (Al)** | Balance | * **Cladding Layer:** High-purity aluminum alloy (AA1050, AA1060, or AA1100 series) providing sacrificial corrosion protection. --- #### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.73 g/cm³ (0.098 lb/in³) | | **Melting Range** | 643 - 654 °C (1190 - 1210 °F) | | **Modulus of Elasticity** | 69 GPa (10,000 ksi) | | **Thermal Conductivity** | 155 W/m·K (107 BTU·in/hr·ft²·°F) | | **Electrical Conductivity** | 42% IACS | | **Coefficient of Thermal Expansion** | 23.2 × 10⁻⁶/°C (20-100°C) | | **Cladding Thickness** | Typically 2.5-5% per side of total thickness | --- #### **3. Mechanical Properties** The O temper provides fully annealed characteristics with maximum ductility: * **Tensile Ultimate Strength:** 95 - 130 MPa (14 - 19 ksi) * **Tensile Yield Strength (0.2% Offset):** 35 - 70 MPa (5 - 10 ksi) * **Elongation:** 20 - 30% (in 2 inches) * **Shear Strength:** 75 MPa (11 ksi) * **Fatigue Strength:** 50 MPa (7 ksi) * **Brinell Hardness:** 25 - 35 HB * **Bending Characteristics:** Excellent bendability with minimum bend radius of 0-1t (t = thickness) --- #### **4. International Standards** * **ASTM:** * **ASTM B209** - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate * **ASTM B928** - Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate * **AMS:** **AMS 4003** - Aluminum Alloy 3003, Alclad Sheet and Plate * **ISO:** * **ISO 6361-2** - Wrought Aluminum and Aluminum Alloy Sheets, Strips and Plates * **ISO 209** - Aluminum and Aluminum Alloys - Chemical Composition * **EN:** * **EN 573-3** - Chemical composition and form of products * **EN 485-2** - Mechanical properties --- #### **5. Product Applications** Alclad 3003-O is specified for applications requiring maximum formability and corrosion resistance: * **Aerospace:** Complexly formed aircraft components, fuel tanks, and ductwork * **Marine:** Intricately shaped boat components, marine fittings, and custom hardware * **Automotive:** Fuel tanks, oil pans, and complex structural components * **HVAC:** Ductwork, ventilation components, and heat exchanger housings * **Food Processing:** Cooking utensils, processing equipment, and storage containers * **Architecture:** Decorative elements, complex architectural forms, and custom fabrications * **Chemical Industry:** Custom-formed tanks and processing equipment --- #### **6. Key Advantages** * **Maximum Formability:** O temper provides exceptional ductility for severe forming operations * **Superior Corrosion Resistance:** Alclad layer offers sacrificial protection in corrosive environments * **Excellent Deep Drawing Characteristics:** Ideal for deep drawing and spinning operations * **Good Weldability:** Excellent weldability using all standard aluminum welding techniques * **High Elongation:** Capable of withstanding significant deformation without failure * **Low Yield Strength:** Easy to form with minimal springback * **Maintained Thermal Conductivity:** Suitable for heat transfer applications requiring formed shapes --- #### **7. Fabrication Characteristics** * **Welding:** Excellent weldability using GTAW, GMAW, and resistance welding methods * **Forming:** Superior formability for deep drawing, spinning, stamping, and bending operations * **Machining:** Good machinability; produces continuous chips * **Strain Hardening:** Cold working after annealing can increase strength for final application * **Surface Treatment:** Excellent suitability for chemical conversion coatings, painting, and anodizing --- #### **8. Technical Notes** * The O temper is achieved by annealing at 345°C (650°F) for 2-3 hours followed by controlled cooling * Material can be strain-hardened after forming to achieve desired mechanical properties * The Alclad layer provides protection even when the material is severely deformed * Suitable for service temperatures from -70°C to +150°C (-94°F to +302°F) * Exhibits excellent resistance to atmospheric corrosion and industrial environments --- #### **9. Heat Treatment Information** * **Annealing Temperature:** 345°C (650°F) * **Soaking Time:** 2-3 hours * **Cooling Method:** Air cooling or furnace cooling * **Grain Size Control:** Proper annealing produces uniform fine grain structure **Conclusion** Alclad 3003-O represents the most formable variant in the 3003 aluminum alloy series, offering maximum workability combined with the proven corrosion protection of Alclad technology. This material is ideally suited for applications requiring complex forming operations, deep drawing, and spinning where maximum ductility is essential. While it offers the lowest mechanical strength in the 3003 series, it provides unparalleled fabrication flexibility, making it the material of choice for manufacturing complex components that must withstand corrosive environments. The combination of exceptional formability and superior corrosion resistance makes Alclad 3003-O an invaluable material for aerospace, automotive, and industrial applications involving severe forming processes.

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 1651 gallon liquid totes Special package is available on request.