Aluminum 5083-O

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Aluminum 5083-O
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 5000 Series Aluminum Alloy
Material Notes:	This alloy has very good corrosion resistance (susceptible to deterioration after prolonged exposure to elevated temperatures) and moderate strength. Its weldability is a plus. It finds uses in transportation, pressure vessels, cryogenics, towers and drilling rigs, gas/oil piping, ordnance, and armor plate. Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN. Composition Notes: Composition information provided by the Aluminum Association and is not for design.
Key Words:	UNS A95083; ISO AlMg4.5Mn; Aluminium 5083-O; AA5083-O; Al5083-O
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	2.66 g/cc	AA; Typical

Mechanical Properties	Original Value	Comments
Hardness, Brinell	77	500 kg load with 10 mm ball. Calculated value.
Hardness, Knoop	100	Converted from Brinell Hardness Value
Hardness, Vickers	87	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	42.0 ksi	AA; Typical
	41.0 MPa @Temperature 370 °C
	75.0 MPa @Temperature 315 °C
	115 MPa @Temperature 260 °C
	150 MPa @Temperature 205 °C
	215 MPa @Temperature 150 °C
	275 MPa @Temperature 100 °C
	290 MPa @Temperature -30.0 °C
	290 MPa @Temperature 25.0 °C
	295 MPa @Temperature -80.0 °C
	405 MPa @Temperature -195 °C
	>= 250 MPa @Thickness 177.8 - 203 mm
	>= 255 MPa @Thickness 127.0 - 178 mm
	>= 260 MPa @Thickness 76.23 - 127 mm
	270 - 345 MPa @Thickness 38.13 - 76.2 mm
	275 - 350 MPa @Thickness 1.30 - 38.1 mm
Tensile Strength, Yield	21.0 ksi	AA; Typical
	>= 95.0 MPa @Thickness 177.8 - 203 mm
	>= 105 MPa @Thickness 127.0 - 178 mm
	>= 110 MPa @Thickness 76.23 - 127 mm
	115 - 200 MPa @Thickness 38.13 - 76.2 mm
	125 - 200 MPa @Thickness 1.30 - 38.1 mm
	29.0 MPa @Strain 0.2 %, Temperature 370 °C
	50.0 MPa @Strain 0.2 %, Temperature 315 °C
	75.0 MPa @Strain 0.2 %, Temperature 260 °C
	115 MPa @Strain 0.2 %, Temperature 205 °C
	130 MPa @Strain 0.2 %, Temperature 150 °C
	145 MPa @Strain 0.2 %, Temperature -80.0 °C
	145 MPa @Strain 0.2 %, Temperature -30.0 °C
	145 MPa @Strain 0.2 %, Temperature 25.0 °C
	145 MPa @Strain 0.2 %, Temperature 100 °C
	165 MPa @Strain 0.2 %, Temperature -195 °C
Elongation at Break	25 % @Temperature 25.0 °C
	27 % @Temperature -30.0 °C
	30 % @Temperature -80.0 °C
	36 % @Temperature -195 °C
	36 % @Temperature 100 °C
	50 % @Temperature 150 °C
	60 % @Temperature 205 °C
	80 % @Temperature 260 °C
	110 % @Temperature 315 °C
	130 % @Temperature 370 °C
	>= 12 % @Thickness 177.8 - 203 mm
	>= 14 % @Thickness 127.0 - 178 mm
	14 - 16 % @Thickness 76.23 - 127 mm
	>= 16 % @Thickness 1.30 - 38.1 mm
	>= 16 % @Thickness 38.13 - 76.2 mm
	22 % @Diameter 12.7 mm	AA; Typical
Modulus of Elasticity	10300 ksi	AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Tensile Modulus	70.3 GPa
Compressive Modulus	71.7 GPa
Notched Tensile Strength	269 MPa	2.5 cm width x 0.16 cm thick side-notched specimen, K_t = 17.
Ultimate Bearing Strength	552 MPa	Edge distance/pin diameter = 2.0
Bearing Yield Strength	248 MPa	Edge distance/pin diameter = 2.0
Poissons Ratio	0.33	Estimated from trends in similar Al alloys.
Fatigue Strength	150 MPa @# of Cycles 5.00e+8	unnotched R. R. Moore rotating beam
Machinability	30 %	0-100 Scale of Aluminum Alloys
Shear Modulus	26.4 GPa
Shear Strength	25.0 ksi	AA; Typical

Electrical Properties	Original Value	Comments
Electrical Resistivity	36.0 ohm-cir-mil/ft @Temperature 20.0 °C	AA; Typical

Thermal Properties	Original Value	Comments
CTE, linear	13.2 µin/in-°F @Temperature 20.0 - 100 °C	AA; Typical; average over range
	22.3 µm/m-°C @Temperature -50.0 - 20.0 °C
	24.2 µm/m-°C @Temperature 20.0 - 100 °C
	25.0 µm/m-°C @Temperature 20.0 - 200 °C
	26.0 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.900 J/g-°C
Thermal Conductivity	810 BTU-in/hr-ft²-°F	AA; Typical at 77°F
Melting Point	1095 - 1180 °F	AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness
Solidus	1095 °F	AA; Typical
Liquidus	1180 °F	AA; Typical

Processing Properties	Original Value	Comments
Annealing Temperature	775 °F	holding at temperature not required
Hot-Working Temperature	600 - 900 °F

Component Elements Properties	Original Value	Comments
Aluminum, Al	92.4 - 95.6 %	As remainder
Chromium, Cr	0.05 - 0.25 %
Copper, Cu	<= 0.10 %
Iron, Fe	<= 0.40 %
Magnesium, Mg	4.0 - 4.9 %
Manganese, Mn	0.40 - 1.0 %
Other, each	<= 0.05 %
Other, total	<= 0.15 %
Silicon, Si	<= 0.40 %
Titanium, Ti	<= 0.15 %
Zinc, Zn	<= 0.25 %

References for this datasheet.

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MA5083O / 9184

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