Aluminum C355.0-T6, Sand Cast

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Aluminum C355.0-T6, Sand 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 C355.0-T6; UNS A33550; AAC355.0-T6; AlC355.0-T6
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Physical Properties	Original Value	Comments

Density	2.71 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	75 - 105	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	114	Estimated from Brinell Hardness.
Hardness, Rockwell A	37	Estimated from Brinell Hardness.
Hardness, Rockwell B	56	Estimated from Brinell Hardness.
Hardness, Vickers	101	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	>= 36.0 ksi	AA
Tensile Strength, Yield	>= 25.0 ksi @Strain 0.2 %	AA
Elongation at Break	>= 2.5 %	AA; in 2 in. (50 mm) or 4D
Tensile Modulus	69.6 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	26.5 GPa
Shear Strength	151 MPa	Calculated

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000440 ohm-cm

Thermal Properties	Original Value	Comments
Heat of Fusion	389 J/g	Typical for cast aluminum
CTE, linear	22.3 µm/m-°C @Temperature 20.0 - 100 °C
	24.7 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.963 J/g-°C
Thermal Conductivity	151 W/m-K
Melting Point	546 - 621 °C
Solidus	546 °C
Liquidus	621 °C

Processing Properties	Original Value	Comments
Melt Temperature	1250 - 1500 °F
Solution Temperature	970 - 980 °F	hold at temperature for 12 hr; cool in water at 150 to 212°F
Aging Temperature	300 - 315 °F	hold at temperature 3 - 5 hrs; start with solution heat-treated material
Casting Temperature	1250 - 1450 °F

Component Elements Properties	Original Value	Comments
Aluminum, Al	91.6 - 94.1 %	As remainder
Copper, Cu	1.0 - 1.5 %
Iron, Fe	<= 0.20 %
Magnesium, Mg	0.40 - 0.60 %
Manganese, Mn	<= 0.10 %
Other, each	<= 0.05 %
Other, total	<= 0.15 %
Silicon, Si	4.5 - 5.5 %
Titanium, Ti	<= 0.20 %
Zinc, Zn	<= 0.10 %

References for this datasheet.

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MAC3550CT6 / 9908

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