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	Metric	English	Comments

Density	2.71 g/cc	0.0979 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	75 - 105	75 - 105	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	114	114	Estimated from Brinell Hardness.
Hardness, Rockwell A	37	37	Estimated from Brinell Hardness.
Hardness, Rockwell B	56	56	Estimated from Brinell Hardness.
Hardness, Vickers	101	101	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	>= 248 MPa	>= 36000 psi	AA
Tensile Strength, Yield	>= 172 MPa @Strain 0.2 %	>= 25000 psi @Strain 0.2 %	AA
Elongation at Break	>= 2.5 %	>= 2.5 %	AA; in 2 in. (50 mm) or 4D
Tensile Modulus	69.6 GPa	10100 ksi	Compressive modulus in is typically about 2% higher for Al alloys
Poissons Ratio	0.33	0.33
Machinability	50 %	50 %	0-100 Scale (100=best)
Shear Modulus	26.5 GPa	3840 ksi
Shear Strength	151 MPa	21900 psi	Calculated

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000440 ohm-cm	0.00000440 ohm-cm

Thermal Properties	Metric	English	Comments
Heat of Fusion	389 J/g	167 BTU/lb	Typical for cast aluminum
CTE, linear	22.3 µm/m-°C @Temperature 20.0 - 100 °C	12.4 µin/in-°F @Temperature 68.0 - 212 °F
	24.7 µm/m-°C @Temperature 20.0 - 300 °C	13.7 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.963 J/g-°C	0.230 BTU/lb-°F
Thermal Conductivity	151 W/m-K	1050 BTU-in/hr-ft²-°F
Melting Point	546 - 621 °C	1010 - 1150 °F
Solidus	546 °C	1010 °F
Liquidus	621 °C	1150 °F

Processing Properties	Metric	English	Comments
Melt Temperature	677 - 816 °C	1250 - 1500 °F
Solution Temperature	521 - 527 °C	970 - 980 °F	hold at temperature for 12 hr; cool in water at 150 to 212°F
Aging Temperature	149 - 157 °C	300 - 315 °F	hold at temperature 3 - 5 hrs; start with solution heat-treated material
Casting Temperature	677 - 788 °C	1250 - 1450 °F

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

References for this datasheet.

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MAC3550CT6 / 9908

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