Aluminum Alloy 5086 (UNS A95086)
Aluminum 5086 is a marine-grade alloy engineered known for its superior corrosion resistance in saltwater environments. Its high strength-to-weight ratio and weldability make it ideal for offshore structures, aerospace components, and heavy-duty transportation.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Aluminum | 93.0% | 96.3% |
| Chromium | 0.05% | 0.25% |
| Copper | —— | 0.1% |
| Iron | —— | 0.5% |
| Magnesium | 3.5% | 4.5% |
| Manganese | 0.2% | 0.7% |
| Silicon | —— | 0.4% |
| Titanium | —— | 0.15% |
| Zinc | —— | 0.25% |
| Residuals | —— | 0.15% |
The following table provides a list of aluminum 5086 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 2650 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength | 260 MPa |
| Yield Strength | 120 MPa |
| Young’s Modulus (E) | 70 - 80 GPa |
| Shear Modulus (G) | 26 GPa |
| Elongation at Break | 12% |
| Poisson’s Ratio (ν) | 0.33 |
| Brinell Hardness | 80 HB |
| Thermal Properties | Metric |
| Melting Point | 590 - 640 °C |
| Thermal Conductivity | 125 W/m·K |
| Specific Heat Capacity (Cp) | 900 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 2.39×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 1.8×107 S/m |
| Electrical Resistivity | 5.6×10-8 Ω·m |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of Aluminum 5086
| Advantages | Disadvantages |
|---|---|
| Corrosion resistance | High cost |
| High strength | Limited heat resistance |
| Lightweight | Surface finish |
| Weldability | Strength limitations at high temperatures |
| Formability |
Applications of Aluminum 5086
Aluminum 5086 is the material of choice for industries requiring lightweight durability in corrosive environments. Key applications include:
- Marine industry: Aluminum 5086 is a popular material choice for boat hulls, superstructures, and other marine components due to its excellent corrosion resistance and weldability.
- Offshore oil rigs: Aluminum 5086 is highly resistant to saltwater corrosion, making it a preferred material for offshore oil rigs and other structures exposed to harsh marine environments.
- Transportation industry: Aluminum 5086 is used in the transportation industry for applications such as truck and trailer bodies, rail cars, and other transportation components due to its high strength-to-weight ratio.
- Aerospace industry: Aluminum 5086 is used in the aerospace industry for applications such as aircraft fuselage and wing structures due to its lightweight and high strength properties.
- Industrial applications: Aluminum 5086 is used in various industrial applications such as heat exchangers, chemical processing equipment, and pressure vessels due to its high strength and corrosion resistance properties.
- Construction industry: Aluminum 5086 is used in the construction industry for applications such as bridges, roofing, and siding due to its durability and resistance to corrosion.
- Electrical industry: Aluminum 5086 is used in electrical applications such as transmission lines and bus bars due to its good conductivity and lightweight properties.
- Sports equipment: Aluminum 5086 is used in the manufacturing of sports equipment such as bike frames, ski poles, and baseball bats due to its lightweight and high strength properties.