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EN AW-5083 · AlMg4.5Mn0.7

The strongest common non-heat-treatable alloy and the shipbuilding standard: weldable with minimal strength loss, exceptionally resistant to seawater, and tough down to cryogenic temperatures. H116/H321 tempers are certified against intergranular corrosion.

2.66g/cm³
Density
315MPa
Typical tensile strength (H12 (drawn))
70.3GPa
Elastic modulus
5000
Series — Al-Mg marine

Material Data

Composition and physical properties

Chemical composition (% by mass)
ElementLimit / range
Si≤ 0.40
Fe≤ 0.40
Cu≤ 0.10
Mn0.40 – 1.0
Mg4.0 – 4.9
Cr0.05 – 0.25
Zn≤ 0.25
Ti≤ 0.15
Albalance

Limits per EN 573-3 / applicable registration. The governing specification on your order prevails.

Physical properties (typical, room temperature)
PropertyValue
Density2.66 g/cm³
Melting range570 – 640 °C
Thermal expansion (20–100 °C)23.8 µm/m·K
Elastic modulus70.3 GPa
Thermal conductivity117 W/m·K
Electrical conductivity29 % IACS

Strength Data

Mechanical properties by temper

Typical room-temperature values for orientation. Design minimums depend on product form, thickness and the governing specification — request the applicable table with your inquiry.

Typical mechanical properties — EN AW-5083 (AlMg4.5Mn0.7)
TemperYield strength (MPa)Tensile strength (MPa)Elongation (%)Hardness (HB)
O / H111 / F1453001775
H116 / H3212153051285
H322153051285
H12 (drawn)250315890
H14 (sheet)235310888

Designations & Standards

How this alloy appears on drawings

Cross-reference designations
SystemDesignation
ISO / EN designationAlMg4.5Mn0.7
EN numericEN AW-5083
UNSA95083
Werkstoff-Nr.3.3547
Common product standardsAMS QQ-A-250/6 · ASTM B209, B211, B221, B241, B928 · ASME SB209 · EN 485 / EN 754 / EN 755

Supply Program

Available from Lipol as

Catalog entries for EN AW-5083
Product formStandardAlloyTemperCategory
PlateAMS QQ-A-250/65083H116Aerospace & Defense
PlateASTM B2095083H32Aerospace & Defense
SheetAMS QQ-A-250/65083H14Aerospace & Defense
SheetASME SB2095083H321Aerospace & Defense
Bar / FlatASTM B2215083H111Aerospace & Defense
Bar / FlatASTM B2115083H12Aerospace & Defense
Tube / Profile / ExtrusionASTM B2415083FAerospace & Defense
Cold-Drawn TubeEN 754-7/-85083OCold Drawing

Additional tempers, forms and specifications available on request — the table shows the standard program.

Applications

Where EN AW-5083 is the right answer

  • Ship hulls and superstructures
  • LNG and cryogenic tanks
  • Pressure vessels
  • Military vehicles and bridges
  • Blow-mold and foaming tooling plate

Specifying EN AW-5083?

State the temper, product form, dimensions and governing standard from the tables above, and we will confirm availability with a firm price and delivery date — typically within one business day.

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Material Engineering

Not sure EN AW-5083 is the right alloy?

Describe the application — load, environment, joining, finishing — and our engineers will confirm the choice or propose a better-value alternative.

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