5254-H112 Aluminum alloy,Aluminum 5254-H112 alloy,E FORU

### **5254-H112 Aluminum Alloy Technical Datasheet** **Material Overview** 5254-H112 is a strain-hardened temper variant of the 5254 aluminum-magnesium alloy, designed to provide moderate strength combined with good corrosion resistance and manufacturability. The H112 temper indicates that the material has been moderately strain-hardened during hot forming processes and is suitable for applications where specific mechanical property requirements are less stringent than fully strain-hardened tempers. This alloy is particularly noted for its excellent performance in marine and chemical processing environments. --- ### **1. Chemical Composition (Weight %)** | Element | Composition Range | |---------|-------------------| | Aluminum (Al) | Balance | | Magnesium (Mg) | 3.1 - 3.9 | | Manganese (Mn) | ≤ 0.50 | | Chromium (Cr) | 0.15 - 0.35 | | Iron (Fe) | ≤ 0.40 | | Silicon (Si) | ≤ 0.25 | | Copper (Cu) | ≤ 0.05 | | Zinc (Zn) | ≤ 0.20 | | Titanium (Ti) | ≤ 0.05 | | Other Elements (Each) | ≤ 0.05 | | Other Elements (Total) | ≤ 0.15 | --- ### **2. Physical Properties** | Property | Value | |----------|-------| | Density | 2.66 g/cm³ | | Melting Range | 590 - 645 °C | | Electrical Conductivity | 32-36% IACS | | Thermal Conductivity | 125 - 135 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 23.9 × 10⁻⁶/°C | | Modulus of Elasticity | 70 GPa | | Specific Heat Capacity | 900 J/kg·K | --- ### **3. Mechanical Properties** | Property | Typical Value | |----------|---------------| | Tensile Strength | 240 - 290 MPa | | Yield Strength (0.2% Offset) | 110 - 160 MPa | | Elongation (50mm) | 14 - 18% | | Hardness (Brinell) | 65 - 75 HB | | Shear Strength | 150 - 180 MPa | | Fatigue Strength | 110 - 130 MPa | --- ### **4. Technical Applications** **Primary Application Sectors:** - **Marine & Offshore** - Ship hull components - Marine structures - Offshore platform components - Deck plating - **Chemical Processing** - Chemical storage tanks - Processing equipment - Heat exchangers - Piping systems - **Pressure Vessels** - Storage containers - Pressure tanks - Cryogenic vessels - Industrial containers - **General Engineering** - Structural frameworks - Support structures - Machinery components - Industrial equipment --- ### **5. International Standards Compliance** | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5254-H112 | | ASTM International | ASTM B209-5254 H112 | | European Standards | EN AW-5254A H112 | | Japanese Standards | JIS A5254 H112 | | International Standards | ISO 6361-2 | --- ### **6. Material Characteristics** **Key Advantages:** - Good corrosion resistance, particularly in marine environments - Moderate strength with adequate formability - Excellent weldability - Good stress corrosion cracking resistance - Suitable for welded structures - Cost-effective for many industrial applications **Special Features:** - **Corrosion Performance** - Excellent seawater corrosion resistance - Good resistance to chemical environments - Suitable for splash zone applications - Good performance in acidic and alkaline conditions - **Manufacturing Versatility** - Good machinability - Suitable for various fabrication methods - Can be welded using all standard processes - Adequate formability for many applications --- ### **7. Processing Characteristics** **Manufacturing Considerations:** - **Welding Technology** - Excellent weldability using MIG and TIG methods - Recommended filler: 5356, 5183 - Good weld metal properties - Minimal strength loss in heat-affected zone - **Forming Operations** - Moderate formability - Suitable for bending and light forming - Predictable springback characteristics - Good for structural applications - **Machining** - Good machinability with proper tools - Produces acceptable surface finish - Suitable for most machining operations - Requires adequate cooling --- ### **8. Quality Assurance** **Testing & Certification:** - Mechanical property verification - Chemical composition analysis - Corrosion resistance testing - Non-destructive testing capability - Dimensional inspection - Mill test certificates per EN 10204 3.1 --- ### **9. Special Considerations** **Design Applications:** - Structural components in corrosive environments - Marine and offshore structures - Chemical processing equipment - Pressure vessel applications **Service Conditions:** - Suitable for temperatures up to 150°C - Good cryogenic performance - Excellent for continuous outdoor exposure - Resistant to marine atmosphere --- **Technical Note:** 5254-H112 Aluminum Alloy provides a balanced combination of moderate strength, excellent corrosion resistance, and good manufacturability, making it particularly suitable for marine, chemical processing, and pressure vessel applications. The H112 temper offers adequate mechanical properties for many structural applications while maintaining the corrosion resistance characteristics that make 5254 alloy valuable in aggressive environments. Its versatility and reliability make it a preferred choice for engineers designing components for demanding service conditions.

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 1876 gallon liquid totes Special package is available on request.