3103 Aluminum alloy,Aluminum 3103 alloy,E FORU

### **Aluminum 3103 Alloy Product Introduction** **Aluminum 3103** is a widely used aluminum-manganese alloy known for its excellent corrosion resistance, good formability, and moderate strength. As a non-heat-treatable alloy, it derives its mechanical properties from strain hardening, making it suitable for various applications in construction, automotive, and general engineering. --- #### **1. Chemical Composition** | Element | Content (%) | | :--- | :--- | | **Manganese (Mn)** | 0.9 - 1.5 | | **Iron (Fe)** | 0.7 max | | **Silicon (Si)** | 0.5 max | | **Copper (Cu)** | 0.10 max | | **Zinc (Zn)** | 0.20 max | | **Other Elements** | each 0.05 max, total 0.15 max | | **Aluminum (Al)** | Balance | *Alloy Characteristics:* - **Manganese** as the primary alloying element for solid solution strengthening - **Low copper content** ensures excellent corrosion resistance - **Balanced composition** for optimal performance - **Controlled impurities** maintain consistent quality --- #### **2. Physical Properties** | Property | Value / Description | | :--- | :--- | | **Density** | 2.73 g/cm³ (0.098 lb/in³) | | **Melting Range** | 640 - 655 °C (1184 - 1211 °F) | | **Modulus of Elasticity** | 69 GPa (10,000 ksi) | | **Thermal Conductivity** | 163 W/m·K (113 BTU·in/hr·ft²·°F) | | **Electrical Conductivity** | 41% IACS | | **Coefficient of Thermal Expansion** | 23.6 × 10⁻⁶/°C (20-100°C) | | **Specific Heat Capacity** | 900 J/kg·K | --- #### **3. Mechanical Properties** *Typical properties for H14 temper:* - **Tensile Ultimate Strength:** 150 - 190 MPa (22 - 28 ksi) - **Tensile Yield Strength (0.2% Offset):** 120 - 160 MPa (17 - 23 ksi) - **Elongation:** 5 - 9% (in 2 inches) - **Shear Strength:** 95 MPa (14 ksi) - **Brinell Hardness:** 40 - 50 HB *Typical properties for O temper:* - **Tensile Ultimate Strength:** 100 - 140 MPa (15 - 20 ksi) - **Tensile Yield Strength:** 40 - 80 MPa (6 - 12 ksi) - **Elongation:** 21 - 27% --- #### **4. International Standards** * **European Standards (EN):** * **EN 573-3** - Chemical composition and form of products * **EN 485-2** - Mechanical properties * **ASTM:** * **ASTM B209** - Aluminum and Aluminum-Alloy Sheet and Plate * **ISO:** * **ISO 6361-2** - Wrought Aluminum and Aluminum Alloy Sheets, Strips and Plates * **National Standards:** * **GB/T 3190** (China) * **JIS H 4000** (Japan) --- #### **5. Product Applications** 3103 alloy is widely used in various industrial applications: * **Building & Construction:** - Roofing and siding sheets - Wall cladding systems - Gutters and downpipes - Architectural trim * **Transportation:** - Vehicle body panels - Truck and trailer components - Container panels - Automotive trim parts * **Heat Exchangers:** - Radiator fins - Heat exchanger plates - Air conditioning components - Cooling system parts * **General Engineering:** - Storage tanks - Chemical equipment - Electrical enclosures - Machinery components --- #### **6. Key Advantages** * **Excellent Corrosion Resistance:** Superior performance in various environments * **Good Formability:** Suitable for bending and forming operations * **Moderate Strength:** Adequate mechanical properties for most applications * **Good Weldability:** Compatible with standard welding techniques * **High Thermal Conductivity:** Excellent for heat transfer applications * **Cost-Effective:** Economical manufacturing solution * **Recyclable:** Environmentally friendly material --- #### **7. Fabrication Characteristics** * **Welding:** Good weldability using GMAW, GTAW, and resistance welding * **Forming:** Excellent for bending, roll forming, and stamping * **Machining:** Fair machinability with proper tool selection * **Strain Hardening:** Good response to cold working processes * **Surface Treatment:** Excellent for painting and chemical conversion * **Joining:** Suitable for mechanical fastening and adhesive bonding --- #### **8. Corrosion Performance** * **Atmospheric Corrosion:** Excellent * **Marine Environment:** Good * **Stress Corrosion Cracking:** Excellent Resistance * **Pitting Resistance:** Good * **Industrial Atmospheres:** Good Resistance --- #### **9. Special Features** * **Consistent Quality** through controlled manufacturing * **Good Thermal Properties** for heat exchange applications * **Excellent Surface Quality** for aesthetic applications * **Non-Toxic** suitable for food contact applications * **Good Fatigue Resistance** for dynamic applications --- #### **10. Quality Assurance** * Strict chemical composition control * Consistent mechanical properties * Comprehensive quality testing * Good dimensional accuracy * Full material traceability **Conclusion** Aluminum 3103 alloy provides a reliable and versatile solution for applications requiring a balanced combination of corrosion resistance, formability, and moderate strength. Its well-established composition ensures consistent performance across various manufacturing processes and end-use applications. The alloy offers adequate mechanical properties for structural applications while maintaining excellent workability and corrosion resistance. Particularly valued in construction and heat exchanger applications, 3103 alloy delivers dependable performance and represents a cost-effective choice for manufacturers seeking a proven aluminum material that consistently meets quality standards in diverse industrial 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 1699 gallon liquid totes Special package is available on request.