Aluminum 296.0-T7, Cast

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Aluminum 296.0-T7, Cast
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; Aluminum Casting Alloy
Material Notes:	Composition Notes: Composition information provided by the Aluminum Association and is not for design.
Key Words:	Aluminium 296.0-T7; UNS A02960; AA296.0-T7; Al296.0-T7
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Physical Properties	Original Value	Comments

Density	2.796 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	80	500 kg load, 10 mm ball
Hardness, Knoop	103	Estimated from Brinell Hardness.
Hardness, Rockwell B	49	Estimated from Brinell Hardness.
Hardness, Vickers	90	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	270 MPa
Tensile Strength, Yield	140 MPa @Strain 0.2 %
Elongation at Break	4.5 %	in 50 mm
Tensile Modulus	69.0 GPa	Compressive modulus in is typically about 2% higher for Al alloys
Compressive Yield Strength	140 MPa
Poissons Ratio	0.33
Fatigue Strength	60.0 MPa @# of Cycles 5.00e+8	Notch Status unknown, R.R. Moore Test
Machinability	50 %	0-100 Scale (100=best)
Shear Modulus	26.2 GPa
Shear Strength	205 MPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000522 ohm-cm	T4 and T6

Thermal Properties	Original Value	Comments
Heat of Fusion	389 J/g
CTE, linear	22.0 µm/m-°C @Temperature 20.0 - 100 °C
	23.9 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.963 J/g-°C
Thermal Conductivity	130 W/m-K	T4 and T6
Melting Point	521 - 632 °C
Solidus	521 °C
Liquidus	632 °C

Processing Properties	Original Value	Comments
Melt Temperature	1250 - 1500 °F
Solution Temperature	945 - 955 °F	hold at temperature for 8 hrs; cool in water at 150 to 212°F
Aging Temperature	495 - 505 °F	hold at temperature for 4 - 6 hrs
Casting Temperature	1250 - 1500 °F

Component Elements Properties	Original Value	Comments
Aluminum, Al	89 - 94 %	As remainder
Copper, Cu	4.0 - 5.0 %
Iron, Fe	<= 1.2 %
Magnesium, Mg	<= 0.050 %
Manganese, Mn	<= 0.35 %
Nickel, Ni	<= 0.35 %
Other, total	<= 0.35 %
Silicon, Si	2.0 - 3.0 %
Titanium, Ti	<= 0.25 %
Zinc, Zn	<= 0.50 %

References for this datasheet.

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MAC2960T7 / 9834

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