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EN AW-5086 · AlMg4

Slightly leaner in magnesium than 5083, trading a little strength for even better forming and weld ductility. A mainstay for welded marine and transport structures where plates must bend before they break.

2.66g/cm³
Density
290MPa
Typical tensile strength (H116)
71GPa
Elastic modulus
5000
Series — Al-Mg marine

Material Data

Composition and physical properties

Chemical composition (% by mass)
ElementLimit / range
Si≤ 0.40
Fe≤ 0.50
Cu≤ 0.10
Mn0.20 – 0.7
Mg3.5 – 4.5
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 range585 – 641 °C
Thermal expansion (20–100 °C)23.8 µm/m·K
Elastic modulus71 GPa
Thermal conductivity127 W/m·K
Electrical conductivity31 % 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-5086 (AlMg4)
TemperYield strength (MPa)Tensile strength (MPa)Elongation (%)Hardness (HB)
O1152602265
H1111302701570
H1121302701470
H1161952901080
H22 / H321852751078
H3211952901080

Designations & Standards

How this alloy appears on drawings

Cross-reference designations
SystemDesignation
ISO / EN designationAlMg4
EN numericEN AW-5086
UNSA95086
Werkstoff-Nr.3.3545
Common product standardsAMS QQ-A-250/7, AMS QQ-A-200/5 · ASTM B209, B928 · EN 485 / EN 755

Supply Program

Available from Lipol as

Catalog entries for EN AW-5086
Product formStandardAlloyTemperCategory
PlateAMS QQ-A-250/75086H111Aerospace & Defense
PlateASTM B2095086H321Aerospace & Defense
SheetQQ-A-250/75086H116Aerospace & Defense
Bar / FlatASTM B9285086H112Aerospace & Defense
Tube / Profile / ExtrusionAMS QQ-A-200/55086OAerospace & Defense
PlateEN AW5086H32Machinery, Automotive & Mold
PlateUNS A950865086H22General Industry

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

Applications

Where EN AW-5086 is the right answer

  • Workboat and patrol-craft hulls
  • Deckhouses and superstructures
  • Tanker bodies and welded tanks
  • Armor and blast-mitigation panels

Specifying EN AW-5086?

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-5086 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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