Aluminum 1188 Alloy (UNS A91188)

Topics Covered

Chemical Composition
Physical Properties
Other Designations


Aluminum alloys are known for their strong corrosion resistance characteristics and have high electrical conductivity. These alloys lose some of their strength when exposed to high temperatures and experience an increase in strength at subzero temperatures, and thus are good low-temperature alloys.

The following datasheet provides an overview of Aluminium/Aluminum 1188 alloy.

Chemical Composition

The chemical composition of Aluminium/Aluminum 1188 alloy is outlined in the following table.

Element Content (%)
Aluminum, Al 99.88
Silicon, Si 0.060
Iron, Fe 0.060
Vanadium, V 0.050
Gallium, Ga 0.030
Zinc, Zn 0.030
Magnesium, Mg 0.010
Manganese, Mn 0.010
Titanium, Ti 0.010
Copper, Cu 0.0050
Beryllium, Be 0.000800
Other, each 0.010

Physical Properties

The following table shows the physical properties of Aluminium/Aluminum 1188 alloy.

Properties Metric Imperial
Density 2.70 g/cm3 0.0975 lb/in³

Other Designations

Equivalent materials to Aluminium/Aluminum 1188 alloy are:

  • ASME SFA5.10 (ER1188)
  • AWS A5.10 (ER1188)

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