5083-H112 Aluminum alloy,Aluminum 5083-H112 alloy,E FORU

### **Technical Datasheet: 5083-H112 Aluminum Alloy** --- #### **1. Material Overview** **5083-H112 Aluminum Alloy** is a high-strength non-heat-treatable aluminum-magnesium alloy in the strain-hardened temper, specifically designed for excellent performance in marine environments. The H112 temper indicates the material has been strain-hardened during the manufacturing process (such as hot rolling) to achieve moderate mechanical properties, making it suitable for structural applications requiring good strength and superior corrosion resistance. --- #### **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 | 29-34% IACS | ASTM B193 | | Thermal Conductivity | 117-127 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 | Value Range | Test Standard | |----------|-------------|---------------| | Tensile Strength | 270-320 MPa | ASTM B557 | | Yield Strength (0.2% Offset) | 125-165 MPa | ASTM B557 | | Elongation (50mm) | 12-18% | ASTM B557 | | Hardness (Brinell) | 70-85 HB | ASTM E10 | | Shear Strength | 175-195 MPa | ASTM B831 | | Fatigue Strength (10⁷ cycles) | 110-130 MPa | ASTM E466 | | **Bend Radius (90°)** | **3-4×t** | **ASTM B311** | --- #### **5. Key Characteristics** - **Excellent Marine Corrosion Resistance**: Outstanding performance in seawater environments - **Good Structural Strength**: Suitable for heavy-duty applications - **Excellent Weldability**: Maintains good properties in welded condition - **Good Formability**: Can be formed and machined effectively - **Stress Corrosion Resistance**: Excellent resistance to stress corrosion cracking - **Cryogenic Toughness**: Maintains properties at low temperatures --- #### **6. Processing Characteristics** **Forming Operations:** - Good for moderate bending and forming - Suitable for roll forming and pressing - Can be machined using standard methods - Moderate springback requiring compensation **Joining Methods:** - GTAW (TIG) - Excellent with 5183 or 5356 filler - GMAW (MIG) - Excellent results - Friction stir welding - Very good - Resistance welding - Good - Mechanical fastening - Excellent **Surface Treatments:** - Anodizing - Very good results - Chemical conversion - Excellent corrosion protection - Painting - Good adhesion - Powder coating - Excellent finish - Metal spraying - Suitable --- #### **7. Product Applications** **Marine & Offshore:** - Ship hulls and superstructures - Offshore platform components - Marine fittings and hardware - Deck plates and structures **Transportation:** - Truck and trailer bodies - Railway carriage components - Vehicle structural members - Heavy transport equipment **Pressure Vessels:** - LNG storage tanks - Chemical pressure vessels - Cryogenic containers - Gas storage systems **Architectural & Structural:** - Bridge components - Building structures - Architectural panels - Structural frameworks --- #### **8. Available Forms & Sizes** - Plate: 6mm to 200mm thickness - Sheet: 0.5mm to 6.0mm thickness - Extrusions: Various profiles and sizes - Forgings: Custom shapes - Welding wire: Various diameters --- #### **9. International Standards** | Standard Organization | Designation | Specification | |----------------------|-------------|---------------| | Aluminum Association | AA 5083-H112 | AA-50 | | ASTM International | ASTM B209-5083H112 | ASTM B209 | | EN Standard | EN AW-5083-H112 | EN 573-3 | | ISO Standard | AlMg4.5Mn0.7-H112 | ISO 209 | | JIS Standard | A5083-H112 | JIS H4000 | | GB Standard | 5083-H112 | GB/T 3880 | --- #### **10. Special Properties** - **Seawater Resistance**: Exceptional corrosion resistance in saltwater - **Weld Strength Efficiency**: High joint efficiency (>90%) - **Impact Toughness**: Excellent energy absorption capacity - **Low Temperature Performance**: Good properties down to -196°C - **Fire Resistance**: Non-combustible and high melting point --- #### **11. Quality Assurance** - Certified chemical composition - Mechanical properties verification - Non-destructive testing (UT, RT) - Surface quality inspection - Dimensional accuracy control - Third-party certification available --- #### **12. Design Advantages** - **Weight Reduction**: 65% weight savings compared to steel - **Life Cycle Cost**: Reduced maintenance and long service life - **Design Flexibility**: Suitable for complex structures - **Safety Performance**: Excellent crash energy absorption - **Environmental Resistance**: 20+ years service life in marine environments --- #### **13. Comparative Performance** | Property | 5083-H112 vs 5083-O | 5083-H112 vs 6061-T6 | |----------|---------------------|----------------------| | Strength | Higher | Comparable | | Corrosion Resistance | Same excellent | Superior | | Weldability | Same excellent | Better | | Cost Effectiveness | Better for marine | More economical | --- *Note: 5083-H112 aluminum alloy is particularly valued for marine and offshore applications due to its exceptional corrosion resistance in seawater, good mechanical properties, and excellent weldability. The H112 temper provides a good balance of strength and formability, making it suitable for heavy-duty structural applications where reliability and durability are paramount.*

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 1822 gallon liquid totes Special package is available on request.