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	Metric	English	Comments

Density	2.796 g/cc	0.1010 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	80	80	500 kg load, 10 mm ball
Hardness, Knoop	103	103	Estimated from Brinell Hardness.
Hardness, Rockwell B	49	49	Estimated from Brinell Hardness.
Hardness, Vickers	90	90	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	270 MPa	39200 psi
Tensile Strength, Yield	140 MPa @Strain 0.2 %	20300 psi @Strain 0.2 %
Elongation at Break	4.5 %	4.5 %	in 50 mm
Tensile Modulus	69.0 GPa	10000 ksi	Compressive modulus in is typically about 2% higher for Al alloys
Compressive Yield Strength	140 MPa	20300 psi
Poissons Ratio	0.33	0.33
Fatigue Strength	60.0 MPa @# of Cycles 5.00e+8	8700 psi @# of Cycles 5.00e+8	Notch Status unknown, R.R. Moore Test
Machinability	50 %	50 %	0-100 Scale (100=best)
Shear Modulus	26.2 GPa	3800 ksi
Shear Strength	205 MPa	29700 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000522 ohm-cm	0.00000522 ohm-cm	T4 and T6

Thermal Properties	Metric	English	Comments
Heat of Fusion	389 J/g	167 BTU/lb
CTE, linear	22.0 µm/m-°C @Temperature 20.0 - 100 °C	12.2 µin/in-°F @Temperature 68.0 - 212 °F
	23.9 µm/m-°C @Temperature 20.0 - 300 °C	13.3 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.963 J/g-°C	0.230 BTU/lb-°F
Thermal Conductivity	130 W/m-K	902 BTU-in/hr-ft²-°F	T4 and T6
Melting Point	521 - 632 °C	970 - 1170 °F
Solidus	521 °C	970 °F
Liquidus	632 °C	1170 °F

Processing Properties	Metric	English	Comments
Melt Temperature	677 - 816 °C	1250 - 1500 °F
Solution Temperature	507 - 513 °C	945 - 955 °F	hold at temperature for 8 hrs; cool in water at 150 to 212°F
Aging Temperature	257 - 263 °C	495 - 505 °F	hold at temperature for 4 - 6 hrs
Casting Temperature	677 - 816 °C	1250 - 1500 °F

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

References for this datasheet.

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MAC2960T7 / 9834

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