Aluminum 5083-O

Aluminum 5083-O

Subcategory: 5000 Series Aluminum Alloy; Aluminum Alloy; Metal; Nonferrous Metal

Close Analogs:

Composition Notes:
Aluminum content reported is calculated as remainder.
Composition information provided by the Aluminum Association and is not for design.

Key Words: UNS A95083; ISO AlMg4.5Mn; Aluminium 5083-O; AA5083-O

Component    Wt. %
Al 92.4 – 95.6
Cr 0.05 – 0.25
Cu Max 0.1
Fe Max 0.4
Component    Wt. %
Mg 4 – 4.9
Mn 0.4 – 1
Other, each Max 0.05
Other, total Max 0.15
Component    Wt. %
Si Max 0.4
Ti Max 0.15
Zn Max 0.25

Material Notes: 
Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Physical Properties

Physical Properties Metric English Comments
Density 2.66 g/cc 0.0961 lb/in³  AA; Typical

Mechanical Properties

Hardness, Brinell 77 77  500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop 100 100  Converted from Brinell Hardness Value
Hardness, Vickers 87 87  Converted from Brinell Hardness Value
Ultimate Tensile Strength 290 MPa 42000 psi  AA; Typical
Tensile Yield Strength 145 MPa 21000 psi  AA; Typical
Elongation at Break 22 % 22 %  AA; Typical; 1/2 in. (12.7 mm) Diameter
Modulus of Elasticity 70.3 GPa 10200 ksi  In Tension
Modulus of Elasticity 71 GPa 10300 ksi  AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Compressive Modulus 71.7 GPa 10400 ksi
Notched Tensile Strength 269 MPa 39000 psi  2.5 cm width x 0.16 cm thick side-notched specimen, Kt = 17.
Ultimate Bearing Strength 552 MPa 80100 psi  Edge distance/pin diameter = 2.0
Bearing Yield Strength 248 MPa 36000 psi  Edge distance/pin diameter = 2.0
Poisson’s Ratio 0.33 0.33  Estimated from trends in similar Al alloys.
Fatigue Strength 150 MPa 21800 psi  5 E+8 cycles unnotched R. R. Moore rotating beam
Machinability 30 % 30 %  0-100 Scale of Aluminum Alloys
Shear Modulus 26.4 GPa 3830 ksi
Shear Strength 172 MPa 25000 psi  AA; Typical

Electrical Properties

Electrical Resistivity 5.98e-006 ohm-cm 5.98e-006 ohm-cm  AA; Typical at 68°F

Thermal Properties

CTE, linear 68°F 23.8 µm/m-°C 13.2 µin/in-°F  AA; Typical; Average over 68-212°F range.
CTE, linear 250°C 26 µm/m-°C 14.4 µin/in-°F  Average over the range 20-300ºC
Specific Heat Capacity 0.9 J/g-°C 0.215 BTU/lb-°F
Thermal Conductivity 117 W/m-K 810 BTU-in/hr-ft²-°F  AA; Typical at 77°F
Melting Point 591 – 638 °C 1095 – 1180 °F  AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater
Solidus 591 °C 1095 °F  AA; Typical
Liquidus 638 °C 1180 °F  AA; Typical

Processing Properties

Annealing Temperature 413 °C 775 °F  holding at temperature not required
Hot-Working Temperature 316-482 °C 600 – 900 °F