Aluminum 204.0-T6, Sand Cast, Precipitation Treatment 12 h at 140°C (285°F)

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Aluminum 204.0-T6, Sand Cast, Precipitation Treatment 12 h at 140°C (285°F)
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; Aluminum Casting Alloy
Material Notes:	Composition Notes: Composition information provided by the Aluminum Association and is not for design.
Key Words:	Aluminium 204.0-T6; UNS A02040; ISO AlCu4MgTi; AA204.0-T6; Al204.0-T6
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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	105	105	500 kg load, 10 mm ball
Hardness, Knoop	132	132	Estimated from Brinell Hardness.
Hardness, Rockwell A	43	43	Estimated from Brinell Hardness.
Hardness, Rockwell B	66	66	Estimated from Brinell Hardness.
Hardness, Vickers	118	118	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	395 MPa	57300 psi
Tensile Strength, Yield	250 MPa @Strain 0.2 %	36300 psi @Strain 0.2 %
Elongation at Break	13.5 %	13.5 %	in 50 mm
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	236 MPa	34200 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	984 - 1200 °F
Solidus	529 °C	984 °F
Liquidus	649 °C	1200 °F

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	<= 0.050 %	<= 0.050 %
Other, each	<= 0.050 %	<= 0.050 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.20 %	<= 0.20 %
Tin, Sn	<= 0.050 %	<= 0.050 %
Titanium, Ti	0.15 - 0.30 %	0.15 - 0.30 %
Zinc, Zn	<= 0.10 %	<= 0.10 %

References for this datasheet.

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MAC2040TS1 / 9769

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