Aluminum 5086 is a popular high-strength, corrosion resistant aluminum alloy. Its primary alloying element is magnesium. The alloy is offered in many forms including sheets, plates, bars, and tubes. Like other aluminum alloys in the 5xxx series, aluminum 5086 performs flawlessly in testing environments.

Properties

Here are key properties of aluminum alloy 5086 sheet

Composition

Aluminum (95.4%), Magnesium (4%, in some cases up to 4.9%), Manganese (0.4-1%), Iron (up to 0.5%), Copper (up to 0.1%), Silicon (up to 0.25%), Zinc (not more than 0.25%) and Titanium (up to 0.15%)

Physical and Mechanical Properties

  • Physical properties-Aluminum alloy 5086 has a density of 2.66 g/cm3. Its melting point is 588°C or 1090.4°F
  • Mechanical properties- Tensile strength-Between 38,000 and 52,000 psi. Yield strength- 28,000-44,000 psi, and hardness-60 to 100 HB

Corrosion Resistance

Aluminum 5086 offers excellent resistance to corrosion. The alloy’s superior corrosion resistance and durability make it ideal for marine applications (boat hulls are often made from aluminum 5086). It also offers better stress corrosion cracking compared to several other aluminum alloys.

Weldability

Aluminum 5086 can be easily welded using TIG, MIG welding and other welding methods. To achieve excellent results, use electric arc welding. When welding aluminum 5086 take special care to avoid softening in the heat-affected area.

Machinability

Aluminum 5086 has good machinability in different strain hardened tempers such as H38, H36, and H34.

Formability

Though less formable than Aluminum 5052, 5086 has good working properties (especially in the O temper) and can be easily formed and rolled into sheets and plates.

Cold Working

The alloy has better cold working characteristics in the O temper than in many other tempers including H36 and H38.

Applications

Aluminum 5086 is used for
  • Hulls and ship structures
  • Offshore oil rigs
  • Military vehicles and equipment
  • Railcars, tankers, and trailers
  • Storage tanks
  • Pressure vehicles
  • Armored vehicles

Advantages

Here are some advantages of aluminum 5086 that make it perfect for a wide variety of applications.
  • Excellent corrosion resistance in marine and acidic environments
  • Good weldability
  • Excellent weight-to-strength ratio, which makes the alloy ideal for applications where weight reduction is important.
  • Though lightweight, aluminum alloy 5086 sheets boast exceptional strength and durability
  • Better resistance to stress cracking compared to many other alloys

Considerations

Follow these tips when using aluminum 5086
  • In marine environments, take appropriate measures to make sure the alloy does not come in contact with dissimilar metals
  • Apply lubricant during machining to reduce friction
  • Take steps to prevent surface scratches
  • Do not expose the alloy to high temperatures for prolonged periods
Bayou Metal Supply & Manufacturing & Manufacturing is a renowned supplier of aluminum alloy 5086 sheets. We offer a range of metal processing services. To learn more, call (877) 375-4800.
Request a Quote
Recent Post