Aluminum 204.0-T4, Sand Cast

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Aluminum 204.0-T4, 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 204.0-T4; UNS A02040; ISO AlCu4MgTi; AA204.0-T4; Al204.0-T4
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Physical Properties	Metric	English	Comments

Density	2.80 g/cc	0.101 lb/in³	Value for aluminum 201.0

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	110	110	500 kg load, 10 mm ball
Hardness, Knoop	138	138	Estimated from Brinell Hardness.
Hardness, Rockwell A	44	44	Estimated from Brinell Hardness.
Hardness, Rockwell B	69	69	Estimated from Brinell Hardness.
Hardness, Vickers	124	124	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	>= 310 MPa	>= 45000 psi	AA
Tensile Strength, Yield	>= 193 MPa @Strain 0.2 %	>= 28000 psi @Strain 0.2 %	AA
Elongation at Break	>= 6.0 %	>= 6.0 %	AA; in 2 in. (50 mm) or 4D
Tensile Modulus	71.0 GPa	10300 ksi	Estimated from 206.0
Poissons Ratio	0.33	0.33	Estimated from 206.0
Machinability	90 %	90 %	0-100 Scale (100=best)
Shear Modulus	26.5 GPa	3840 ksi	Estimated from 206.0
Shear Strength	187 MPa	27100 psi	Calculated

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000550 ohm-cm	0.00000550 ohm-cm	Value for Aluminum 201.0

Thermal Properties	Metric	English	Comments
Heat of Fusion	389 J/g	167 BTU/lb	Typical for cast aluminum
CTE, linear	19.3 µm/m-°C @Temperature 20.0 - 100 °C	10.7 µin/in-°F @Temperature 68.0 - 212 °F	Value for Aluminum 201.0
	24.7 µm/m-°C @Temperature 20.0 - 300 °C	13.7 µin/in-°F @Temperature 68.0 - 572 °F	Value for Aluminum 201.0
Specific Heat Capacity	0.963 J/g-°C	0.230 BTU/lb-°F	Typical for cast aluminum
Thermal Conductivity	120 W/m-K	833 BTU-in/hr-ft²-°F	Value for Aluminum 201.0
Melting Point	529 - 649 °C	985 - 1200 °F	AA; Typical
Solidus	529 °C	985 °F	AA; Typical
Liquidus	649 °C	1200 °F	AA; Typical

Component Elements Properties	Metric	English	Comments
Aluminum, Al	93.3 - 95.5 %	93.3 - 95.5 %	As remainder
Copper, Cu	4.2 - 5.0 %	4.2 - 5.0 %
Iron, Fe	<= 0.35 %	<= 0.35 %
Magnesium, Mg	0.15 - 0.35 %	0.15 - 0.35 %
Manganese, Mn	<= 0.10 %	<= 0.10 %
Nickel, Ni	<= 0.05 %	<= 0.05 %
Other, each	<= 0.05 %	<= 0.05 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.20 %	<= 0.20 %
Tin, Sn	<= 0.05 %	<= 0.05 %
Titanium, Ti	0.15 - 0.30 %	0.15 - 0.30 %
Zinc, Zn	<= 0.10 %	<= 0.10 %

References for this datasheet.

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