Aluminum 707.0-T7, Permanent Mold Cast

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Aluminum 707.0-T7, Permanent Mold Cast
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; Aluminum Casting 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:	Aluminium 707.0-T7; UNS A07070; AA707.0-T7; Al707.0-T7
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Physical Properties	Metric	English	Comments

Density	2.77 g/cc	0.100 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	80 - 110	80 - 110	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	120	120	Estimated from Brinell Hardness.
Hardness, Rockwell A	39	39	Estimated from Brinell Hardness.
Hardness, Rockwell B	60	60	Estimated from Brinell Hardness.
Hardness, Vickers	107	107	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	>= 310 MPa	>= 45000 psi	AA
Tensile Strength, Yield	>= 241 MPa @Strain 0.2 %	>= 35000 psi @Strain 0.2 %	AA
Elongation at Break	>= 3.0 %	>= 3.0 %	AA; in 2 in. (50 mm) or 4D
Tensile Modulus	71.0 GPa	10300 ksi	Aluminum 770.0
Poissons Ratio	0.33	0.33	Estimated from aluminum 770.0
Machinability	90 %	90 %	0-100 Scale (100=best)
Shear Modulus	26.5 GPa	3840 ksi	Estimated from aluminum 770.0
Shear Strength	187 MPa	27100 psi	Calculated

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000690 ohm-cm	0.00000690 ohm-cm

Thermal Properties	Metric	English	Comments
Heat of Fusion	389 J/g	167 BTU/lb	Typical for cast aluminum
CTE, linear	23.8 µm/m-°C @Temperature 20.0 - 100 °C	13.2 µin/in-°F @Temperature 68.0 - 212 °F
	25.9 µm/m-°C @Temperature 20.0 - 300 °C	14.4 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.963 J/g-°C	0.230 BTU/lb-°F	Typical for cast aluminum
Thermal Conductivity	105 W/m-K	729 BTU-in/hr-ft²-°F
Melting Point	585 - 629 °C	1090 - 1160 °F
Solidus	585 °C	1090 °F
Liquidus	629 °C	1160 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	90.5 - 93.6 %	90.5 - 93.6 %	As remainder
Chromium, Cr	0.20 - 0.40 %	0.20 - 0.40 %
Copper, Cu	<= 0.20 %	<= 0.20 %
Iron, Fe	<= 0.80 %	<= 0.80 %
Magnesium, Mg	1.8 - 2.4 %	1.8 - 2.4 %
Manganese, Mn	0.40 - 0.60 %	0.40 - 0.60 %
Other, each	<= 0.05 %	<= 0.05 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.20 %	<= 0.20 %
Titanium, Ti	<= 0.25 %	<= 0.25 %
Zinc, Zn	4.0 - 4.5 %	4.0 - 4.5 %

References for this datasheet.

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MAC7070T7P / 10167

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