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AMS QQ-A-250/8 / AlMg2.5 / 5052 / O

Chemical Properties % Value
Silicon (Si)0,00 - 0,25
Chromium (Cr)0,15 - 0,35
Manganese (Mn)0,00 - 0,10
Magnesium (Mg)2,20 - 2,80
Copper (Cu)0,00 - 0,10
Iron (Fe)0,00 - 0,40
Zinc (Zn)0,00 - 0,10
Aluminium (Al)Balance
Physical Properties Value
Density2.68 g/cm³
Melting Point607 °C
Thermal Expansion23.8 x10^-6 /K
Modulus of Elasticity70 GPa
Thermal Conductivity140 W/m.K
Electrical Resistivity%35 IACS
Mechanical Properties Value
Proof Strength240 MPa
Yield Strength330 MPa
Shear Strength185 MPa
Elongation A50 mm%17
Modulus of Elasticity70 GPa
5052 has excellent finishing qualities and anodized coatings are bright and clear.  Weldability is very good and 5052 has good resistance to corrosion, especially in salt-water / marine atmospheres.


Aluminium alloy QQ-A-250/8, 5052 has s imilarities to the following standard designations and specifications ;


Alloy 5052, UNS A95052, ASTM B209

AMS 4015, 3.3523
Alloy QQ-A-250/8, 5052 is supplied in a wide range of tempers:
  • O - Soft
  • H34 - Stabilised - A low temperature thermal treatment or heat introduced during manufacture which stabilises the mechanical properties and relieves residual internal stress, plus usually improves ductility
  • H112 - Alloys that have some tempering from shaping but do not have special control over the amount of work-hardening or thermal treatment.
  • H24 - Work hardened by rolling then annealed to half hard
  • H26 - Work hardened by rolling then annealed to three-quarter hard
  • H32 - Work hardened by rolling then stabilised by low-temperature heat treatment to quarter hard
  • T36 - Solution heat treated then cold worked by a reduction of 6%


5052 is supplied in plate, sheet, bar and extrusions.
  • Plate
  • Sheet
  • Round Bar / Bar
  • Tube / Extrusions