Aluminum 355.0-T51, Permanent Mold Cast

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Aluminum 355.0-T51, 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 355.0-T51; UNS A03550; ISO 3522: AlSi5Cu1Mg; ISO R164: AlSi5Cu1; AA355.0-T51. Comparable to JIS AC4D-T51, LM16; Al355.0-T51
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Physical Properties	Original Value	Comments

Density	2.71 g/cc	AA; Typical

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	>= 27.0 ksi	AA
Tensile Strength, Yield	165 MPa @Strain 0.2 %
Elongation at Break	2.0 %	in 50 mm
Tensile Modulus	70.3 GPa	Compressive modulus in is typically about 2% higher for Al alloys
Compressive Yield Strength	165 MPa
Poissons Ratio	0.33
Machinability	50 %	0-100 Scale (100=best)
Shear Modulus	26.2 GPa
Shear Strength	165 MPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000400 ohm-cm	AA; Typical 43% IACS Conductivity

Thermal Properties	Original Value	Comments
Heat of Fusion	389 J/g	Typical for cast aluminum
CTE, linear	12.4 µin/in-°F @Temperature 20.0 - 100 °C	AA; Typical
	13.7 µin/in-°F @Temperature 20.0 - 300 °C	AA; Typical; average over range
Specific Heat Capacity	0.963 J/g-°C
Thermal Conductivity	0.400 cal cm/sec-cm²-°C	AA; Typical at 25°C
Melting Point	1015 - 1150 °F	AA; Typical
Solidus	1015 °F	AA; Typical
Liquidus	1150 °F	AA; Typical

Processing Properties	Original Value	Comments
Melt Temperature	1250 - 1500 °F
Solution Temperature	970 - 980 °F	hold at temperature for 8 hrs; cool in water at 150 - 212°F
Casting Temperature	1250 - 1450 °F

Component Elements Properties	Original Value	Comments
Aluminum, Al	90.3 - 94.1 %	As remainder
Chromium, Cr	<= 0.25 %
Copper, Cu	1.0 - 1.5 %
Iron, Fe	<= 0.60 %
Magnesium, Mg	0.40 - 0.60 %
Manganese, Mn	<= 0.50 %
Other, each	<= 0.05 %
Other, total	<= 0.15 %
Silicon, Si	4.5 - 5.5 %
Titanium, Ti	<= 0.25 %
Zinc, Zn	<= 0.35 %

References for this datasheet.

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MAC3550T5P / 9909

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