5083-H34; 5083-H343 Aluminum alloy,Aluminum 5083-H34; 5083-H343 alloy,E FORU

### **Technical Datasheet: 5083-H34 / 5083-H343 Aluminum Alloy** --- #### **1. Material Overview** **5083-H34** and **5083-H343** are medium-strength strain-hardened tempers of the aluminum-magnesium alloy 5083, offering enhanced mechanical properties while maintaining excellent corrosion resistance. The H34 temper provides higher strength than H32 through additional cold working, while H343 represents a specialized variant with improved stability for specific applications, particularly in marine and structural sectors. --- #### **2. Chemical Composition (Weight %)** | Element | Content (%) | Role in the Alloy | |---------|-------------|-------------------| | Al | Balance | Base metal | | Mg | 4.0-4.9 | Primary strengthening element | | Mn | 0.40-1.0 | Grain refinement and strength enhancement | | Cr | 0.05-0.25 | Stress corrosion resistance | | Cu | ≤0.10 | Impurity control | | Fe | ≤0.40 | Impurity control | | Si | ≤0.40 | Impurity control | | Zn | ≤0.25 | Impurity control | | Ti | ≤0.15 | Grain refinement | | Others (each) | ≤0.05 | - | | Others (total) | ≤0.15 | - | --- #### **3. Physical Properties** | Property | Value | Test Standard | |----------|-------|---------------| | Density | 2.66 g/cm³ | ASTM B193 | | Melting Range | 590-640 °C | - | | Electrical Conductivity | 28-33% IACS | ASTM B193 | | Thermal Conductivity | 115-125 W/m·K | ASTM E1461 | | Coefficient of Thermal Expansion | 23.8 × 10⁻⁶/K (20-100°C) | ASTM E228 | | Modulus of Elasticity | 70.0 GPa | ASTM E111 | | Specific Heat Capacity | 900 J/kg·K | - | --- #### **4. Mechanical Properties (Typical)** | Property | 5083-H34 | 5083-H343 | Test Standard | |----------|-----------|-----------|---------------| | Tensile Strength (MPa) | 315-365 | 320-370 | ASTM B557 | | Yield Strength (MPa) | 235-285 | 245-295 | ASTM B557 | | Elongation (%) | 8-14 | 8-14 | ASTM B557 | | Hardness (HB) | 90-105 | 95-110 | ASTM E10 | | Shear Strength (MPa) | 190-210 | 195-215 | ASTM B831 | | Fatigue Strength (MPa) | 120-140 | 125-145 | ASTM E466 | --- #### **5. Key Characteristics** - **Enhanced Strength**: Higher mechanical properties than H32 temper - **Excellent Marine Corrosion Resistance**: Superior performance in seawater environments - **Good Formability**: Suitable for moderate forming operations - **Superior Weldability**: Maintains good properties in welded condition - **Stress Corrosion Resistance**: Good resistance to stress corrosion cracking - **Stable Properties**: Consistent performance across temperature ranges --- #### **6. Processing Characteristics** **Forming Operations:** - Good for moderate bending and forming - Minimum bend radius: 3-4× thickness - Suitable for roll forming and pressing - Moderate springback requiring compensation **Joining Methods:** - GTAW (TIG) - Excellent with 5183/5356 filler - GMAW (MIG) - Excellent results - Resistance welding - Very good - Friction stir welding - Suitable - Mechanical fastening - Excellent **Surface Treatments:** - Anodizing - Very good results - Chemical conversion - Excellent corrosion protection - Painting - Good adhesion - Powder coating - Excellent finish quality - Metal spraying - Suitable --- #### **7. Product Applications** **Marine & Offshore:** - Ship hull plating - Deck structures and platforms - Marine superstructures - Offshore platform components **Transportation Industry:** - Truck body panels - Trailer side walls - Railway carriage components - Heavy vehicle structures **Pressure Vessels:** - Storage tanks - Pressure containers - Cryogenic vessels - Chemical processors **Architectural & Structural:** - Bridge components - Building panels - Structural frameworks - Architectural features --- #### **8. Available Forms & Sizes** - Sheet: 0.8mm to 6.0mm thickness - Plate: 6mm to 100mm thickness - Coil: Up to 1500mm width - Strip: 0.5mm to 3.0mm thickness --- #### **9. International Standards** | Standard Organization | H34 Designation | H343 Designation | |----------------------|------------------|------------------| | Aluminum Association | AA 5083-H34 | AA 5083-H343 | | ASTM International | ASTM B209-5083H34 | ASTM B209-5083H343 | | EN Standard | EN AW-5083-H34 | EN AW-5083-H343 | | ISO Standard | AlMg4.5Mn0.7-H34 | AlMg4.5Mn0.7-H343 | | JIS Standard | A5083-H34 | A5083-H343 | --- #### **10. Special Properties** - **Seawater Compatibility**: Excellent resistance to saltwater corrosion - **Weld Integrity**: High joint efficiency in welded structures - **Impact Resistance**: Good energy absorption characteristics - **Thermal Stability**: Maintains properties at moderate temperatures - **Cryogenic Performance**: Suitable for low-temperature applications --- #### **11. Quality Assurance** - Certified chemical composition - Mechanical properties verification - Non-destructive testing capabilities - Surface quality inspection - Dimensional accuracy control - Third-party certification available --- #### **12. Design Considerations** - **Strength Optimization**: Balanced strength and formability - **Corrosion Design**: Reduced need for corrosion allowance - **Welding Design**: Good HAZ properties - **Temperature Range**: -196°C to +65°C service capability - **Weight Efficiency**: Significant weight savings versus steel --- #### **13. Comparative Analysis** | Property | H34 Temper | H343 Temper | H32 Temper | |----------|------------|-------------|------------| | Tensile Strength (MPa) | 315-365 | 320-370 | 295-345 | | Yield Strength (MPa) | 235-285 | 245-295 | 200-250 | | Elongation (%) | 8-14 | 8-14 | 10-16 | | Applications | Marine structures | Specialized marine | General marine | --- *Note: 5083-H34 and 5083-H343 aluminum alloys offer enhanced strength characteristics while maintaining the excellent corrosion resistance that makes 5083 alloy suitable for marine applications. The H343 variant provides additional stability and consistency for critical applications where performance reliability is essential. These tempers represent an optimal balance between mechanical properties, corrosion resistance, and manufacturability.*

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 1825 gallon liquid totes Special package is available on request.