Aluminum 356.0-T71, Permanent Mold Cast

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Aluminum 356.0-T71, 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: If iron exceeds 0.45%, manganese content shall not be less than one-half iron content. Composition information provided by the Aluminum Association and is not for design.
Key Words:	Aluminium 356.0-T71; UNS A03560; ISO 3522 and R2147 AlSi7Mg; AA356.0-T71. Comparable to JIS AC4C; Al356.0-T71
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Physical Properties	Original Value	Comments

Density	2.68 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	60 - 90	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	98	Estimated from Brinell Hardness.
Hardness, Vickers	85	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	>= 25.0 ksi	AA
Elongation at Break	>= 3.0 %	AA; in 2 in. (50 mm) or 4D
Tensile Modulus	72.4 GPa	Compressive modulus in is typically about 2% higher for Al alloys
Poissons Ratio	0.33
Machinability	50 %	0-100 Scale (100=best)
Shear Modulus	27.2 GPa
Shear Strength	107 MPa	Calculated

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000400 ohm-cm

Thermal Properties	Original Value	Comments
Heat of Fusion	389 J/g
CTE, linear	21.4 µm/m-°C @Temperature 20.0 - 100 °C
	23.2 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.963 J/g-°C
Thermal Conductivity	167 W/m-K
Melting Point	557 - 613 °C
Solidus	557 °C
Liquidus	613 °C

Processing Properties	Original Value	Comments
Melt Temperature	1250 - 1500 °F
Solution Temperature	995 - 1005 °F	hold at temperature for 8 hrs; cool in water at 150 to 212°F
Casting Temperature	1250 - 1450 °F

Component Elements Properties	Original Value	Comments
Aluminum, Al	90.1 - 93.3 %	As remainder
Copper, Cu	<= 0.25 %
Iron, Fe	<= 0.60 %
Magnesium, Mg	0.20 - 0.45 %
Manganese, Mn	<= 0.35 %
Other, each	<= 0.05 %
Other, total	<= 0.15 %
Silicon, Si	6.5 - 7.5 %
Titanium, Ti	<= 0.25 %
Zinc, Zn	<= 0.35 %

References for this datasheet.

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MAC356071P / 9923

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