5021 Aluminum alloy,Aluminum 5021 alloy,E FORU

### **Product Introduction: Aluminum 5021 Alloy** **Overview** Aluminum 5021 Alloy is a non-heat-treatable aluminum-magnesium alloy known for its excellent corrosion resistance, good strength characteristics, and superior formability. This alloy is specifically designed for applications requiring a balance of mechanical properties and manufacturing efficiency, particularly in marine, automotive, and general industrial sectors. --- ### **1. Chemical Composition (Typical Weight %)** | Element | Content (%) | |---------|-------------| | **Aluminum (Al)** | Balance | | **Magnesium (Mg)** | 1.5 - 2.2 | | **Manganese (Mn)** | 0.6 - 1.0 | | **Iron (Fe)** | ≤ 0.35 | | **Silicon (Si)** | ≤ 0.25 | | **Copper (Cu)** | ≤ 0.05 | | **Zinc (Zn)** | ≤ 0.10 | | **Chromium (Cr)** | 0.15 - 0.25 | | **Titanium (Ti)** | ≤ 0.10 | | **Other Elements** | ≤ 0.05 each | | **Total Others** | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 2.69 g/cm³ | | **Melting Range** | 625 - 645 °C | | **Electrical Conductivity** | 36-41% IACS | | **Thermal Conductivity** | 138-158 W/m·K | | **Coefficient of Thermal Expansion** | 23.7 × 10⁻⁶/°C | | **Modulus of Elasticity** | 70 GPa | | **Specific Heat Capacity** | 0.90 J/g·°C | --- ### **3. Mechanical Properties (by Temper Condition)** | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |--------|------------------------|----------------------|----------------| | **O** | 190-230 | 75-115 | 16-22 | | **H12** | 210-250 | 165-205 | 10-16 | | **H14** | 230-270 | 185-225 | 8-12 | | **H16** | 250-290 | 205-245 | 6-9 | | **H18** | 270-310 | 225-265 | 4-7 | --- ### **4. International Standards** | Standard Body | Designation | |---------------|-------------| | **Aluminum Association (AA)** | AA 5021 | | **European Standard (EN)** | EN AW-5021 | | **ISO** | AlMg2Mn0.8 (ISO 209) | | **UNS** | A95021 | | **JIS H** | A5021 | --- ### **5. Product Applications** **Marine Applications:** - Boat hull components - Marine fittings and hardware - Deck structures - Marine furniture - Coastal architectural elements **Automotive Components:** - Vehicle body panels - Structural reinforcements - Interior trim components - Chassis parts - Automotive brackets **General Engineering:** - Machinery components - Equipment housings - Structural frames - Support brackets - Industrial fabrications **Consumer Products:** - Appliance components - Furniture frames - Sporting goods - Luggage frames - Recreational equipment --- ### **6. Key Characteristics & Advantages** - **Excellent Corrosion Resistance**: Good performance in marine and industrial environments - **Good Strength-to-Weight Ratio**: Favorable mechanical properties with low density - **Superior Formability**: Easily formed using standard manufacturing methods - **Good Weldability**: Suitable for conventional welding processes - **Machinability**: Can be machined effectively in all tempers - **Anodizing Capability**: Produces quality surface finishes - **Cost-Effectiveness**: Economical solution for various applications --- ### **7. Special Features** **Corrosion Performance:** - Good resistance to saltwater exposure - Suitable for marine atmospheres - Resists industrial environments - Performs well in rural settings - Maintains appearance over time **Manufacturing Advantages:** - Good deep drawing characteristics - Suitable for stamping and pressing - Excellent roll forming capabilities - Consistent in production runs - Minimal springback in forming --- ### **8. Processing Guidelines** **Forming Operations:** - Excellent formability in O temper - Suitable for complex shapes - Good bending characteristics - Can be stretch formed - Maintains integrity in severe forming **Joining Methods:** - MIG and TIG welding compatible - Resistance welding applicable - Adhesive bonding effective - Mechanical fastening suitable - Standard procedures yield good results **Heat Treatment:** - Annealing temperature: 340-350°C - Stress relief annealing available - Not responsive to precipitation hardening - Air cooling sufficient **Finishing Operations:** - Good anodizing characteristics - Suitable for powder coating - Accepts liquid painting - Can be chemically treated - Mechanical finishing effective **Disclaimer:** The information provided is for reference purposes only. Aluminum 5021 offers a versatile combination of properties suitable for general manufacturing and marine applications. Specific properties may vary depending on production methods, temper conditions, and product specifications. For critical applications, always consult technical data sheets from material suppliers and conduct appropriate testing. The alloy represents an excellent balance between performance characteristics and manufacturing economics for a wide range of industrial uses.

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 1787 gallon liquid totes Special package is available on request.