Aluminium / Aluminum 6020 Alloy (UNS A96020)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties


Aluminium / aluminum is a silverish white metal. It is the third most abundantly available element. Aluminium / aluminum can be combined with one of these elements – silicon, magnesium, manganese, copper, and zinc, to form aluminium / aluminum alloys.

It is possible to use aluminium / aluminum alloys to create stiffer and lighter designs than traditional uses of steels. Aluminium / aluminum 6020 alloy is a wrought alloy type with excellent corrosion resistance. It is an unleaded variety. Aluminium / aluminum 6020 alloy is known for its high corrosion resistance, excellent machinability, good joining characteristics, and very good response to anodizing.

The following datasheet will provide more details about the aluminium / aluminum 6020 alloy.

Chemical Composition

The following table shows the chemical composition of the aluminium / aluminum 6020 –T8 alloy.

Element Content (%)
Aluminum, Al 93.9-97.8
Tin, Sn 0.90-1.5
Magnesium, Mg 0.60-1.2
Silicon, Si 0.40-0.90
Copper, Cu 0.30-0.90
Iron, Fe ≤ 0.50
Manganese, Mn ≤ 0.35
Zinc, Zn ≤ 0.20
Chromium, Cr ≤ 0.15
Titanium, Ti ≤ 0.15
Lead, Pb ≤ 0.050
Remainder (each) ≤ 0.050
Remainder (total) ≤ 0.15

Physical Properties

The physical properties of aluminium / aluminum 6020 alloy are outlined in the following table.

Properties Metric Imperial
Density 2.71 g/cm3 0.0979 lb/in³

Mechanical Properties

The mechanical properties of the aluminium / aluminum 6020-T8 alloy are tabulated below.

Properties Metric Imperial
Tensile strength ≥ 303 MPa ≥ 43900 psi
Yield strength ≥ 283 MPa ≥ 41000 psi
Elongation at break 10% 10%
Hardness, Brinell 100 100
Hardness, Knoop (estimated from Brinell) 126 126
Hardness, Rockwell A (estimated from Brinell) 41 41
Hardness, Rockwell B (estimated from Brinell) 63 63
Hardness, Vickers (estimated from Brinell) 112 112
Machinability 90 90

Thermal Properties

The thermal properties of the aluminium / aluminum 6020 alloy are tabulated below.

Properties Metric Imperial
Thermal expansion co-efficient 23.8 µm/m°C 13.2 µin/in°F


The following are potential applications of aluminium / aluminum 6020 alloy:

  • Hinge pins
  • Brake pistons
  • Camera parts
  • Automotive transmission valves
  • CATV connectors
  • Tripod fittings
  • Air-conditioning compressor pistons

Aluminium / aluminum 6020 alloy is also used in areas where leaded products pose an environmental concern.

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