3103A Aluminum alloy,Aluminum 3103A alloy,E FORU

### **Aluminum 3103A Alloy Product Introduction** **Aluminum 3103A** is an enhanced version of the standard 3103 aluminum-manganese alloy, offering improved consistency and controlled chemical composition for better performance in demanding applications. This alloy maintains the excellent corrosion resistance and good formability of 3103 while providing more reliable mechanical properties through tighter compositional controls. --- #### **1. Chemical Composition** | Element | Content (%) | | :--- | :--- | | **Manganese (Mn)** | 0.9 - 1.5 | | **Iron (Fe)** | 0.45 max | | **Silicon (Si)** | 0.30 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 primary strengthening element - **Tighter control** on iron and silicon content - **Enhanced purity** for improved corrosion resistance - **Optimized composition** for consistent performance --- #### **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:** 155 - 195 MPa (22 - 28 ksi) - **Tensile Yield Strength (0.2% Offset):** 125 - 165 MPa (18 - 24 ksi) - **Elongation:** 6 - 10% (in 2 inches) - **Shear Strength:** 98 MPa (14 ksi) - **Brinell Hardness:** 41 - 51 HB *Typical properties for H16 temper:* - **Tensile Ultimate Strength:** 175 - 215 MPa (25 - 31 ksi) - **Tensile Yield Strength:** 145 - 185 MPa (21 - 27 ksi) - **Elongation:** 4 - 8% --- #### **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** 3103A alloy is used in high-quality applications: * **Building & Construction:** - Premium roofing systems - Architectural cladding - High-quality gutter systems - Decorative architectural elements * **Transportation:** - Automotive body panels - Railway carriage components - Commercial vehicle parts - Container manufacturing * **Heat Exchangers:** - High-performance radiator fins - Air conditioning systems - Industrial heat exchangers - Cooling equipment * **Consumer Products:** - Quality appliance panels - Premium cookware - Decorative items - Furniture components --- #### **6. Key Advantages** * **Enhanced Consistency:** Tighter compositional controls ensure reliable performance * **Excellent Corrosion Resistance:** Superior performance in various environments * **Improved Formability:** Better workability than standard 3103 * **Good Mechanical Properties:** Reliable strength characteristics * **Excellent Weldability:** Compatible with all standard welding methods * **Superior Surface Quality:** Ideal for high-quality finishes * **Cost-Effective:** Premium quality at competitive pricing --- #### **7. Fabrication Characteristics** * **Welding:** Excellent weldability using GMAW, GTAW, and resistance welding * **Forming:** Superior for deep drawing, bending, and roll forming * **Machining:** Good machinability with consistent chip formation * **Strain Hardening:** Predictable response to cold working * **Surface Treatment:** Excellent for anodizing and painting * **Joining:** Suitable for all mechanical fastening methods --- #### **8. Corrosion Performance** * **Atmospheric Corrosion:** Excellent * **Marine Environment:** Very Good * **Stress Corrosion Cracking:** Excellent Resistance * **Pitting Resistance:** Very Good * **Industrial Atmospheres:** Excellent Resistance --- #### **9. Quality Enhancement Features** * **Tighter Iron Control** for improved corrosion resistance * **Reduced Silicon Content** for better formability * **Consistent Manganese Distribution** for uniform properties * **Enhanced Purity** for superior surface quality * **Strict Quality Controls** throughout manufacturing --- #### **10. Quality Assurance** * Stringent chemical composition control * Enhanced mechanical property consistency * Comprehensive quality testing protocols * Superior surface quality standards * Full traceability and certification **Conclusion** Aluminum 3103A alloy represents a premium grade within the 3103 series, offering enhanced consistency and performance through tighter compositional controls and improved manufacturing processes. Its optimized chemistry provides more reliable mechanical properties and better corrosion resistance compared to the standard 3103 alloy, making it particularly suitable for applications where consistent quality and superior performance are essential. The alloy maintains all the advantageous characteristics of the 3103 series while delivering improved reliability and enhanced fabrication characteristics. 3103A is the material of choice for manufacturers seeking premium aluminum quality for high-value applications in construction, transportation, and consumer products where consistent performance and superior finish quality are paramount requirements.

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 1700 gallon liquid totes Special package is available on request.