Aluminum 384.0-F Die Casting Alloy

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Aluminum 384.0-F Die Casting Alloy
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 384.0-F; UNS A03840; AA384.0-F Die, SAE 383, LM2, ISO AlSi10Cu2Fe, EN 1706 AC 46100, UNI 5076, ADC 12 (ADC12), A-S9U3-Y4, RSA SA 46; Al384.0-F
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Physical Properties	Metric	English	Comments

Density	2.823 g/cc	0.1020 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	85	85	500 kg load, 10 mm ball
Hardness, Knoop	109	109	Estimated from Brinell Hardness.
Hardness, Rockwell B	53	53	Estimated from Brinell Hardness.
Hardness, Vickers	96	96	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	331 MPa	48000 psi
Tensile Strength, Yield	165 MPa @Strain 0.2 %	23900 psi @Strain 0.2 %
Elongation at Break	2.5 %	2.5 %	in 50 mm
Fatigue Strength	140 MPa @# of Cycles 5.00e+8	20300 psi @# of Cycles 5.00e+8	Specific test unknown
Machinability	50 %	50 %	0-100 Scale (100=best)
Shear Strength	199 MPa	28900 psi	Calculated

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000750 ohm-cm	0.00000750 ohm-cm

Thermal Properties	Metric	English	Comments
Heat of Fusion	389 J/g	167 BTU/lb	Typical for cast aluminum
CTE, linear	20.8 µm/m-°C @Temperature 20.0 - 100 °C	11.6 µin/in-°F @Temperature 68.0 - 212 °F
	22.1 µm/m-°C @Temperature 20.0 - 300 °C	12.3 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.963 J/g-°C	0.230 BTU/lb-°F	Typical for cast aluminum
Thermal Conductivity	92.0 W/m-K	638 BTU-in/hr-ft²-°F
Melting Point	516 - 582 °C	961 - 1080 °F
Solidus	516 °C	961 °F
Liquidus	582 °C	1080 °F

Processing Properties	Metric	English	Comments
Annealing Temperature	177 - 260 °C	350 - 500 °F	Stress-relief anneal; hold at temperature 4 - 6 hrs; cool in still air
	260 - 371 °C	500 - 700 °F	for increased ductility; hold at temperature 4 - 6 hrs; furnace cool or cool in still air
Casting Temperature	616 - 699 °C	1140 - 1290 °F	Die Casting

Component Elements Properties	Metric	English	Comments
Aluminum, Al	77.3 - 86.5 %	77.3 - 86.5 %	As remainder
Copper, Cu	3.0 - 4.5 %	3.0 - 4.5 %
Iron, Fe	<= 1.3 %	<= 1.3 %
Magnesium, Mg	<= 0.10 %	<= 0.10 %
Manganese, Mn	<= 0.50 %	<= 0.50 %
Nickel, Ni	<= 0.50 %	<= 0.50 %
Other, total	<= 0.50 %	<= 0.50 %
Silicon, Si	10.5 - 12 %	10.5 - 12 %
Tin, Sn	<= 0.35 %	<= 0.35 %
Zinc, Zn	<= 3.0 %	<= 3.0 %

References for this datasheet.

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MAC3840F / 10033

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