Aluminum 5356 Alloy (UNS A95356)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations


Aluminum alloys are good low-temperature alloys with high electrical conductivity. These alloys have strong corrosion resistance characteristics and are sensitive to high temperatures ranging between 200 and 250°C (392 and 482°F). When exposed to subzero temperatures the aluminum alloys gain strength, and strength is lost when these alloys are exposed to high temperatures.

The following datasheet provides an overview of the aluminum 5356 alloy.

Chemical Composition

The chemical composition of aluminum 5356 alloy is outlined in the following table.

Element Content (%)
Aluminum, Al 92.9-95.3
Magnesium, Mg 4.50-5.50
Iron, Fe 0.40
Silicon, Si 0.25
Copper, Cu 0.10
Zinc, Zn 0.10
Titanium, Ti 0.060-0.20
Chromium, Cr 0.050-0.20
Manganese, Mn 0.050-0.20
Beryllium, Be 0.000800
Other, total 0.15
Other, each 0.050

Physical Properties

The following table shows the physical properties of aluminum 5356 alloy.

Properties Metric Imperial
Density 2.64 g/ cm3 0.0954 lb/in³

Mechanical Properties

The mechanical properties of aluminum 5356 alloy are displayed in the following table.

Properties Metric Imperial
Shear modulus (estimated from similar Al alloys) 26.0 GPa 3770 ksi
Elastic modulus 70-80 Gpa 10152-11603 ksi
Poisson's ratio 0.33 0.33

Thermal Properties

The thermal properties of aluminum 5356 alloy are given in the following table.

Properties Conditions
T (ºC) Treatment
Thermal conductivity 116 (W/mK) 25 O

Other Designations

Equivalent materials to aluminum 5356 alloy are:

  • ASME SFA5.10 (ER5356)
  • AWS A5.10 (ER5356)
  • MIL S-24149/2


Aluminum 5356 alloy is used for filler wires and electrodes in the welding process of aluminum alloys with high-magnesium content.

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