5451 Aluminum alloy,Aluminum 5451 alloy,E FORU

# 5451 Aluminum Alloy Technical Datasheet ## Material Overview 5451 Aluminum Alloy is a non-heat-treatable aluminum-magnesium alloy from the 5xxx series, designed to provide a balanced combination of moderate strength, excellent corrosion resistance, and good formability. This alloy is particularly suitable for marine applications, pressure vessels, and structural components where reliability and durability in corrosive environments are essential requirements. --- ## 1. Chemical Composition (Weight %) | Element | Composition Range | |---------|-------------------| | Aluminum (Al) | Balance | | Magnesium (Mg) | 1.5 - 2.5 | | Manganese (Mn) | 0.10 - 0.40 | | Chromium (Cr) | 0.15 - 0.25 | | Iron (Fe) | ≤ 0.35 | | Silicon (Si) | ≤ 0.25 | | Copper (Cu) | ≤ 0.08 | | Zinc (Zn) | ≤ 0.15 | | Titanium (Ti) | ≤ 0.10 | | Other Elements (Each) | ≤ 0.05 | | Other Elements (Total) | ≤ 0.15 | --- ## 2. Physical Properties | Property | Value | |----------|-------| | Density | 2.69 g/cm³ | | Melting Range | 610 - 650 °C | | Electrical Conductivity | 34-38% IACS | | Thermal Conductivity | 135 - 145 W/m·K | | Coefficient of Thermal Expansion (20-100°C) | 23.7 × 10⁻⁶/°C | | Modulus of Elasticity | 70 GPa | | Specific Heat Capacity | 900 J/kg·K | --- ## 3. Mechanical Properties | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |--------|------------------------|----------------------|----------------| | O | 180 - 230 | 80 - 120 | 20 - 25 | | H32 | 230 - 280 | 180 - 220 | 14 - 18 | | H34 | 250 - 300 | 200 - 240 | 12 - 16 | | H36 | 270 - 320 | 220 - 260 | 10 - 14 | --- ## 4. Technical Applications ### Primary Application Sectors: - **Marine Applications** - Boat hull components - Marine fittings and hardware - Deck structures - Superstructure components - **Pressure Vessels** - Storage tanks - Pressure containers - Cryogenic vessels - Industrial containers - **Transportation** - Truck body components - Trailer structures - Railway carriage parts - Automotive components - **General Engineering** - Structural frameworks - Machinery components - Equipment housings - Industrial applications --- ## 5. International Standards Compliance | Standard Organization | Designation | |----------------------|-------------| | Aluminum Association | AA 5451 | | ASTM International | ASTM B209-5451 | | European Standards | EN AW-5451 | | Japanese Standards | JIS A5451 | | International Standards | ISO 6361-2 | --- ## 6. Material Characteristics ### Key Advantages: - Good corrosion resistance in marine environments - Moderate strength with excellent formability - Good weldability using conventional methods - Superior stress corrosion cracking resistance - Excellent fatigue performance - Good cryogenic properties ### Special Features: - **Corrosion Performance** - Excellent seawater corrosion resistance - Good atmospheric corrosion resistance - Suitable for marine environments - Resistant to stress corrosion cracking - **Manufacturing Versatility** - Good deep drawing capability - Excellent bending and forming characteristics - Predictable springback behavior - Suitable for complex fabrication --- ## 7. Processing Characteristics ### Manufacturing Considerations: - **Forming Operations** - Excellent formability in annealed condition - Good deep drawing performance - Suitable for moderate to severe bending - Predictable springback characteristics - **Welding Technology** - Excellent weldability using standard methods - Recommended filler alloys: 5356, 5183 - Good weld metal properties - Minimal heat-affected zone sensitivity - **Machining** - Good machinability with proper tools - Produces good surface finish - Suitable for precision machining - Requires adequate cooling and lubrication --- ## 8. Quality Assurance ### Testing & Certification: - Mechanical property testing - Chemical composition analysis - Corrosion resistance evaluation - Non-destructive testing capability - Formability assessment - Mill test certificates per EN 10204 3.1 --- ## Technical Note 5451 Aluminum Alloy provides an excellent balance of mechanical properties, corrosion resistance, and manufacturing versatility. Its optimized chemical composition ensures reliable performance in various marine, pressure vessel, and structural applications. The alloy offers good strength combined with excellent formability, making it suitable for both structural components and complex fabricated parts. Its consistent performance and good welding characteristics make it a reliable choice for applications requiring durability and long service life in demanding environments, particularly in marine and industrial applications where corrosion resistance is a critical requirement.

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 1899 gallon liquid totes Special package is available on request.