5083 aluminium alloy

5083 aluminium alloy is an aluminium alloy with magnesium and traces of manganese and chromium. It is highly resistant to attack by seawater and industrial chemicals.[1]

Alloy 5083 retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys with a Ultimate Tensile Strength of 317 MPa or 46000 psi and a Tensile Yield Strength of 228 MPa or 33000 psi. It is not recommended for use in temperatures in excess of 65 °C.[2]

Anodizing

For AA 5083 alloy, the stages of porous structure development are substantially identical with that of pure aluminium, although an increase in oxide growth rate and high conductance of the oxide film were observed.

Chemical composition

The composition of 5083 aluminium is:[3]

• Aluminium: balance
• Chromium: 0.05-0.25% max
• Copper: 0.1% max
• Iron: 0.4% max
• Magnesium: 4.0 to 4.9%
• Manganese: 0.4 to 1.0%
• Silicon: 0.4% max
• Titanium: 0.15% max
• Zinc: 0.25% max

Applications

Alloy 5083 is commonly used in:

• Shipbuilding
• Railroad cars
• Drilling rigs
• Coachwork
• Pressure vessels
• Aluminium armor

Uses requiring a weldable moderate-strength alloy having good corrosion resistance are commonly utilizing alloy 5083.

See also

• Hydronalium

References

1. "Aluminium Alloys - Aluminium 5083 Properties, Fabrication and Applications, Supplier Data by Aalco". azom.com. Retrieved 8 March 2015.
2. "5083 Aluminium Alloy". Smiths Metal Centres. Retrieved 8 March 2015.
3. "Aluminium Alloys - Aluminium 5083 Properties, Fabrication and Applications". AZoM.com. 2005-04-19. Retrieved 2019-05-02.

Further reading

• Tsangaraki-Kaplanoglou, I.; Theohari, S.; Dimogerontakis, Th.; Wang, Yar-Ming; Kuo, Hong-Hsiang (Harry); Kia, Sheila (2006). "Effect of alloy types on the anodizing process of aluminum". Surface and Coatings Technology. 200 (8): 2634–41. doi:10.1016/j.surfcoat.2005.07.065. INIST:17461272.