Aluminium Alloy - Commercial Alloy - 5083 - H321 Sheet

5083 - H321 Sheet

Aluminium 5083 is known for exceptional performance in extreme environments. 5083 is highly resistant to attack by both seawater and industrial chemical environments.
Alloy 5083 also retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65°C.

Alloy 5083 is typically used in:
~ Shipbuilding
~ Rail cars
~ Vehicle bodies
~ Tip truck bodies
~ Mine skips and cages
~ Pressure vessels

Mechanical Properties shown are for H321 temper

Chemical Composition

Spec: BS EN 573-3:2009

Alloy 5083

Chemical Element % Present
Manganese (Mn) 0.40 - 1.00
Iron (Fe) 0.0 - 0.40
Copper (Cu) 0.0 - 0.10
Magnesium (Mg) 4.00 - 4.90
Silicon (Si) 0.0 - 0.40
Zinc (Zn) 0.0 - 0.25
Chromium (Cr) 0.05 - 0.25
Titanium (Ti) 0.0 - 0.15
Aluminium (Al) Balance


Physical PropertyValue
Density 2.65 g/cm³
Melting Point 570 °C
Thermal Expansion 25 x10^-6 /K
Modulus of Elasticity 72 GPa
Thermal Conductivity 121 W/m.K
Electrical Resistivity 0.058 x10^-6 Ω .m

Spec: BS EN 485-2:2008

Sheet - 0.2mm to 6.00mm

Mechanical PropertyValue
Proof Stress 240 Min MPa
Tensile Strength 330 MPa
Elongation A50 mm 17 %
Shear Strength 185 MPa
Hardness Vickers 95 HV

Alloy Designations

Alloy 5083   corresponds to the following standard designations and specifications but may not be a direct equivalent:





Al Mg4.5 Mn0.7



Temper Types

The most common tempers for 5083 aluminium are:

    Supplied Forms

    • Plate
    • Sheet


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    Last Datasheet Revision

    18 July 2019


    This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

    Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

    The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.

    Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards.

    As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied.

    Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.