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AMS QQ-A-200/4 / AlMg4.5Mn0.7 / 5083 / O

Chemical Properties % Value
Silicon (Si)0,00 - 0,40
Chromium (Cr)0,05 - 0,25
Manganese (Mn)0,40 - 1,00
Magnesium (Mg)4,00 - 4,90
Copper (Cu)0,00 - 0,10
Titanium (Ti)0,00 - 0,15
Iron (Fe)0,00 - 0,40
Zinc (Zn)0,00 - 0,25
Aluminium (Al)Balance
Physical Properties Value
Density2,66 g/cm³
Melting Point574 °C
Thermal Expansion23.9 x 10^-6 /K
Modulus of Elasticity71 GPa
Thermal Conductivity120 W/m.K
Electrical Resistivity%29 IACS
Mechanical Properties Value
Proof Strength150 MPa
Yield Strength310 MPa
Elongation A50 mm%17
Modulus of Elasticity71 GPa
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.


Aluminium alloy QQ-A-250/6, 5083 has s imilarities to the following standard designations and specifications ;

Alloy 5083, UNS A95083, ASTM B209

ISO AlMg4.5Mn, AMS 4056

BS N8, 3.3547, AlMg4.5Mn0.7
5083 is supplied in a wide range of tempers:
  • O - Soft
  • H111 - Annealed and slightly strain-hardened (less than H11) during subsequent operations such as stretching or levelling.
  • H112 - Applies to alloys that acquire some temper from shaping processes which do not have special control over the amount of strain-hardening or thermal treatment, but for which there are mechanical property limits.
  • H116 - Applies to aluminium-magnesium alloys with a magnesium content of 4% or more and for which mechanical property limits and exfoliation corrosion resistance are specified.
  • H32 - Work hardened by rolling then stabilised by low-temperature heat treatment to quarter hard
  • H321 - Applies to alloys which are strain-hardened less than the amount required for a controlled H32 temper
  • H36 - Strain-hardened and stabilized - 3/4 hard.


5083 is supplied in plate, sheet, bar and extrusions.
  • Plate
  • Sheet
  • Round Bar / Bar
  • Tube / Extrusions