Aluminum 2219-T31

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Aluminum 2219-T31
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 2000 Series Aluminum Alloy
Material Notes:	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 A92219; ISO AlCu6Mn; Aluminium 2219-T31; AA2219-T31; Al2219-T31
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Physical Properties	Original Value	Comments

Density	2.84 g/cc	AA; Typical

Mechanical Properties	Original Value	Comments
Hardness, Brinell	100	500 kg load with 10 mm ball
Hardness, Knoop	126	Converted from Brinell Hardness Value
Hardness, Rockwell A	41.2	Converted from Brinell Hardness Value
Hardness, Rockwell B	63	Converted from Brinell Hardness Value
Hardness, Vickers	113	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	52.0 ksi	AA; Typical
	>= 315 MPa @Thickness 0.508 - 0.991 mm	Sheet
	>= 315 MPa @Thickness 1.02 - 6.32 mm	Sheet
	>= 290 MPa @Diameter <=12.7 mm	Wire, rod, bar, and shapes (extruded)
	>= 290 MPa @Diameter <=12.7 mm	Extruded tube
	>= 310 MPa @Diameter 12.7 - 76.17 mm	Wire, rod, bar, and shapes (extruded)
	>= 310 MPa @Diameter 12.7 - 76.17 mm	Extruded tube
Tensile Strength, Yield	36.0 ksi	AA; Typical
	>= 195 MPa @Thickness 1.02 - 6.32 mm	Sheet
	>= 200 MPa @Thickness 0.508 - 0.991 mm	Sheet
	>= 180 MPa @Diameter <=12.7 mm	Wire, rod, bar, and shapes (extruded)
	>= 180 MPa @Diameter <=12.7 mm	Extruded tube
	>= 185 MPa @Diameter 12.7 - 76.17 mm	Wire, rod, bar, and shapes (extruded)
	>= 185 MPa @Diameter 12.7 - 76.17 mm	Extruded tube
Elongation at Break	8.0 % @Thickness 0.508 - 0.991 mm	Sheet
	10 % @Thickness 1.02 - 6.32 mm	Sheet
	17 % @Thickness 1.59 mm	AA; Typical
	14 % @Diameter <=12.7 mm	Wire, rod, bar, and shapes (extruded)
	14 % @Diameter 12.7 - 76.17 mm	Wire, rod, bar, and shapes (extruded)
	14 % @Diameter <=12.7 mm	Extruded tube
	14 % @Diameter 12.7 - 76.17 mm	Extruded tube
Modulus of Elasticity	10600 ksi	AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poissons Ratio	0.33	Estimated from trends in similar Al alloys.
Machinability	70 %	0-100 Scale of Aluminum Alloys
Shear Modulus	27.0 GPa	Estimated from similar Al alloys.
Shear Strength	250 MPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	37.0 ohm-cir-mil/ft @Temperature 20.0 °C	AA; Typical

Thermal Properties	Original Value	Comments
CTE, linear	12.4 µin/in-°F @Temperature 20.0 - 100 °C	AA; Typical; average over range
	20.8 µm/m-°C @Temperature -50.0 - 20.0 °C
	22.5 µm/m-°C @Temperature 20.0 - 100 °C
	23.4 µm/m-°C @Temperature 20.0 - 200 °C
	24.1 µm/m-°C @Temperature 20.0 - 300 °C
	24.4 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.864 J/g-°C
Thermal Conductivity	780 BTU-in/hr-ft²-°F	AA; Typical at 77°F
Melting Point	1010 - 1190 °F	AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness. Eutectic melting is not eliminated by homogenization.
Solidus	1010 °F	AA; Typical
Liquidus	1190 °F	AA; Typical

Processing Properties	Original Value	Comments
Annealing Temperature	775 °F
Solution Temperature	995 °F
Aging Temperature	325 - 375 °F	from 18 to 36 hr at temperature

Component Elements Properties	Original Value	Comments
Aluminum, Al	91.5 - 93.8 %	As remainder
Copper, Cu	5.8 - 6.8 %
Iron, Fe	<= 0.30 %
Magnesium, Mg	<= 0.02 %
Manganese, Mn	0.20 - 0.40 %
Other, each	<= 0.05 %
Other, total	<= 0.15 %
Silicon, Si	<= 0.20 %
Titanium, Ti	0.02 - 0.10 %
Vanadium, V	0.05 - 0.15 %
Zinc, Zn	<= 0.10 %
Zirconium, Zr	0.10 - 0.25 %

References for this datasheet.

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MA2219T31 / 8927

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