Aluminum 1070 Alloy (UNS A91070)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties


Aluminium / aluminum is the second most widely used metal in the world today. It is a versatile metal that can be cast into any form. This lightweight metal can be welded, riveted, brazed, or resin bonded according to the requirement.

Aluminium / aluminum 1070 alloy is a wrought alloy type with good corrosion resistance. It is an excellent brazing alloy.

The following datasheet will provide more details about aluminium/ aluminum 1070 alloy.

Chemical Composition

The following table shows the chemical composition of aluminium/aluminum 1070 alloy.

Element Content (%)
Aluminum, Al ≥ 99.7
Iron, Fe ≤ 0.25
Silicon, Si ≤ 0.20
Zinc, Zn ≤ 0.040
Vanadium, V ≤ 0.050
Copper, Cu ≤ 0.040
Titanium, Ti ≤ 0.030
Magnesium, Mg ≤ 0.030
Manganese, Mn ≤ 0.030
Other (each) ≤ 0.030

Physical Properties

The physical properties of aluminium/aluminum 1070 alloy are outlined in the following table.

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

Mechanical Properties

The mechanical properties of aluminium / aluminum 1070-O alloy are tabulated below.

Properties Metric Imperial
Tensile strength 95 MPa 13778 psi


Aluminium / aluminum 1070 alloy is chiefly used in the following areas:

  • General industrial components
  • Building and construction
  • Transport
  • Electrical material
  • PS plates
  • Strips for ornaments
  • Communication cables
  • Refrigerator and freezer cabinets
  • For joining two pieces of aluminium / aluminum.

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