1070 aluminum is a 1000-series aluminum alloy: it is considered commercially pure, and is formulated for primary forming into wrought products. 1070 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-1070. Additionally, the EN chemical designation is Al99,7. And the UNS number is A91070.

It originally received its standard designation in 1954.

The properties of 1070 aluminum include nine common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 1070 aluminum to: 1000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it’s 50% of the highest, and so on.

1070 aluminium 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/  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


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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