Aluminum 1199 Alloy (UNS A91199)

Topics Covered

Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties


Aluminium / aluminum is a highly sought after metal due to its numerous advantageous properties. It finds use in multiple fields such as automobile, aerospace, marine, and engineering. As it is abundantly available, it is relatively cheaper than most metals.

Aluminium / aluminum 1199 alloy is a wrought alloy with good corrosion resistance. The following datasheet will provide more details about aluminium / aluminum 1199 alloy.

Chemical Composition

The following table shows the chemical composition of aluminium / aluminum 1199 alloy.

Element Content (%)
Aluminum, Al 99.99 min
Silicon, Si 0.006 max
Magnesium, Mg 0.006 max
Zinc, Zn 0.006 max
Iron, Fe 0.006 max
Copper, Cu 0.006 max
Gallium, Ga 0.005 max
Vanadium, Va 0.005 max
Manganese, Mn 0.002 max
Remainder (each) 0.002 (each)

Physical Properties

The physical properties of aluminium / aluminum 1199 alloy are outlined in the following table.

Properties Metric Imperial
Density 2.70 g/cm³ 0.0975 lb/in³
Melting point 660°C 1220°F

Mechanical Properties

The mechanical properties of aluminium / aluminum 1199-H18 alloy are tabulated below.

Properties Metric Imperial
Tensile strength 115 MPa 16700 psi
Yield strength 110 MPa 16000 psi
Poisson’s ratio 0.33 0.33
Elastic modulus 62 GPa 8990 ksi
Shear modulus 25 GPa 3630 ksi
Elongation at break (@thickness 1.60 mm/0.0630 in) 5% 5%
Shear strength 74 MPa 10700 psi
Hardness, Brinell (@load 500 kg with 10.0 mm ball) 31 31

Thermal Properties

The thermal properties of aluminium / aluminum 1199 alloy are tabulated below.

Properties Conditions
T (°C) Treatment
Thermal conductivity 243 W/mK 25 O

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