Aluminum 6105 Alloy (UNS A96105)

Topics Covered

Chemical Composition
Physical Properties
Thermal Properties
Other Designations


Aluminum is a widely used metal in many industries, as it is an excellent conductor of heat and electricity. When combined with elements such as silicon, magnesium, manganese, copper, and zinc, aluminum alloys are formed.

Aluminum 6105 is a wrought alloy with good corrosion resistance and medium strength. The following datasheet will provide more details about aluminum 6105 alloy.

Chemical Composition

The following table shows the chemical composition of aluminum 6105 alloy.

Element Content (%)
Silicon, Si 0.6-1
Magnesium, Mg 0.45-0.8
Iron, Fe 0.35 max
Chromium, Cr 0.1 max
Copper, Cu 0.1 max
Manganese, Mn 0.1 max
Zinc, Zn 0.1 max
Titanium , Ti 0.1 max
Remainder (each) 0.05 max
Remainder (total) 0.15 max
Aluminum, Al Remainder

Physical Properties

The physical properties of aluminum 6105-T1 alloy are outlined in the following table.

Properties Metric Imperial
Density 2.69 g/cm³ 0.0972 lb/in³
Melting point 599-649°C 1110-1200°F

Thermal Properties

The thermal properties of aluminum 6105 alloy are tabulated below.

Properties Metric Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F) 23.4 µm/m°C 13 µin/in°F
Thermal conductivity 176 W/mK 1220 BTU in/hr.ft².°F

Other Designations

Equivalent material to the aluminum 6105 alloy is ASTM B221.


Aluminum 6105 alloy is chiefly used in applications requiring moderate strength, especially where there is minimal impact or overloading.

The following are some of the areas this alloy is used:

  • Automobile connector stock
  • Hand rail tubing
  • Ladder structures
  • Seamless tubing

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