Composition, Characteristics, and Properties of 1050 Aluminum Alloy 

1050 aluminum alloy is a high-purity alloy mainly composed of aluminum with small amounts of copper and manganese. It is commonly used in industry due to its excellent plasticity, conductivity, and thermal conductivity.

Composition, Characteristics, and Properties of 1050 Aluminum Alloy

Characteristics of 1050 Aluminum

Aluminum alloy 1050 is industrial pure aluminum with high plasticity, corrosion resistance, and electrical and thermal conductivity. However, its strength is relatively low and cannot be improved through heat treatment. It can be gas welded, contact welded, and hydrogen atom welded, but it is not easy to solder. This alloy can easily withstand various pressure processing, stretching, and bending.

Chemical Composition of Aluminium Alloy 1050

Element% Composition
Fe0.0 – 0.40
Mn0.0 – 0.05
Cu0.0 – 0.05
Mg0.0 – 0.05
Si0.0 – 0.25
Ti0.0 – 0.05
Zn0.0 – 0.07

Aluminium 1050 Mechanical Properties

Al 1050 Mechanical properties at room temperatureValue
Tensile Strength100 MPa
Proof Stress85 MPa
Shear Strength60 MPa
Hardness Brinell34 HB

Physical Properties of Aluminium Alloy 1050

Physical PropertiesValue
Melting Point650 °C
Density2.71 Kg/m3
Thermal Expansion24 x 10-6 /K
Modulus of Elasticity71 GPa
Electrical Resistivity0.0282 x 10-6 Ω .m
Thermal Conductivity222W/m.K


Alloy Designations

The following designations can also refer to aluminum 1050:

  • AA1050A
  • A91050
  • S1B

1050 Aluminum Welding

When welding Aluminium 1050 alloy with itself or an alloy from the same subgroup, it is recommended to use filler wire 1100. For welding with alloys 5083 and 5086 or alloys from the 7XXX series, it is recommended to use 5356 filler wire. For welding with other alloys, use 4043 filler wire.

1050 Aluminum Welding

Fabrication Performance for Aluminium Alloy 1050

Process  Performance
Workability – Cold Good
Weldability – Gas Good
Weldability – Arc Good
Weldability – Resistance Good
Solderability Good
Brazability Good


Temper Types of 1050 Aluminum

The most common temper for 1050 aluminum is H14, which means it has been working hardened by rolling to half hard but not annealed after rolling.

Applications of Aluminium Alloy 1050

Aluminum alloy 1050 is commonly utilized for:

  • Food industry 
  • Chemical process plant machines
  • Pyrotechnic powder
  • Architectural industry
  • Lighting industry
  • Cable sheathing
  • New energy industry

Supplied Forms of Aluminium Alloy 1050-H14

Supplied forms of Aluminium alloy 1050-H14 include plain and stucco sheet, with or without PVC coating, and shate.


What is the difference between aluminum 1100 and 1050?

The 1050 aluminum alloy is made up of 99.5% aluminum, 0.4% iron, 0.45% silicon, and 0.2% copper. It is often used for applications that require good weldability and resistance to corrosion. On the other hand, the 1100 aluminum alloy comprises 99.6% aluminum, 0.4% iron, 0.2% silicon and 0.2% copper.

Is Aluminium 1050 suitable for use in casting?

1050 Aluminium Alloy is typically not employed for castings but fashioned through extrusion or rolling. It is widely utilized in electrical and chemical industries due to its corrosion resistance, high electrical conductivity, and workability.

What is the difference between 3003 and 1050 aluminum?

Compared to 3003 aluminum alloy, the polarization and corrosion resistance of 1050 aluminum alloy in natural seawater are increased. The recorded electrochemical measurements agree with the optical micrographs taken after corrosion assays.


Please contact us if you want to learn more about aluminium 1050 data sheet and other alloys. Enze offers various manufacturing capabilities and value-added services for aluminum prototyping and production needs.