Aluminum 242.0-T21, Sand Cast

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Aluminum 242.0-T21, Sand Cast
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 242.0-T21; UNS A02420; ISO 3522 and R164 AlCu4Ni2Mg2; AA242.0-T21; Al242.0-T21
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Density	2.823 g/cc	0.1020 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	70	70	500 kg load, 10 mm ball
Hardness, Knoop	93	93	Estimated from Brinell Hardness.
Hardness, Vickers	80	80	Estimated from Brinell Hardness.
Tensile Strength, Ultimate	185 MPa	26800 psi
Tensile Strength, Yield	125 MPa @Strain 0.2 %	18100 psi @Strain 0.2 %
Elongation at Break	2.0 %	2.0 %	in 50 mm
Tensile Modulus	71.0 GPa	10300 ksi	Compressive modulus in is typically about 2% higher for Al alloys
Compressive Yield Strength	125 MPa	18100 psi
Poissons Ratio	0.33	0.33
Fatigue Strength	55.0 MPa @# of Cycles 5.00e+8	7980 psi @# of Cycles 5.00e+8	Notch Status unknown, R.R. Moore Test
Machinability	70 %	70 %	0-100 Scale (100=best)
Shear Modulus	26.5 GPa	3840 ksi
Shear Strength	145 MPa	21000 psi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000392 ohm-cm	0.00000392 ohm-cm

Thermal Properties	Metric	English	Comments
Heat of Fusion	389 J/g	167 BTU/lb
CTE, linear	22.7 µm/m-°C @Temperature 20.0 - 100 °C	12.6 µin/in-°F @Temperature 68.0 - 212 °F
	24.5 µm/m-°C @Temperature 20.0 - 300 °C	13.6 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.963 J/g-°C	0.230 BTU/lb-°F
Thermal Conductivity	167 W/m-K	1160 BTU-in/hr-ft²-°F
Melting Point	532 - 635 °C	990 - 1180 °F
Solidus	532 °C	990 °F
Liquidus	635 °C	1180 °F

Processing Properties	Metric	English	Comments
Melt Temperature	677 - 816 °C	1250 - 1500 °F
Annealing Temperature	341 - 346 °C	645 - 655 °F	2 - 4 hrs
Solution Temperature	518 - 524 °C	965 - 975 °F
Casting Temperature	677 - 788 °C	1250 - 1450 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	88.3 - 93.6 %	88.3 - 93.6 %	As remainder
Chromium, Cr	<= 0.25 %	<= 0.25 %
Copper, Cu	3.5 - 4.5 %	3.5 - 4.5 %
Iron, Fe	<= 1.0 %	<= 1.0 %
Magnesium, Mg	1.2 - 1.8 %	1.2 - 1.8 %
Manganese, Mn	<= 0.35 %	<= 0.35 %
Nickel, Ni	1.7 - 2.3 %	1.7 - 2.3 %
Other, each	<= 0.050 %	<= 0.050 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.70 %	<= 0.70 %
Titanium, Ti	<= 0.25 %	<= 0.25 %
Zinc, Zn	<= 0.35 %	<= 0.35 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
Aluminum 242.0-O, Sand Cast
Aluminum 242.0-T571, Permanent Mold Cast
Aluminum 242.0-T61, Sand Cast
Aluminum 242.0-T571, Sand Cast
Aluminum 242.0-T77, Sand Cast

MAC2420T21 / 9808

Free Trade Publications, Click Here!

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message