Aluminum 7075-O

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Aluminum 7075-O
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 7000 Series Aluminum Alloy
Material Notes:	General 7075 characteristics and uses (from Alcoa): Very high strength material used for highly stressed structural parts. The T7351 temper offers improved stress-corrosion cracking resistance. Uses: Aircraft fittings, gears and shafts, fuse parts, meter shafts and gears, missile parts, regulating valve parts, worm gears, keys, aircraft, aerospace and defense applications. Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN. Composition Notes: A Zr + Ti limit of 0.25 percent maximum may be used with this alloy designation for extruded and forged products only, but only when the supplier and the purchaser have mutually agreed. Composition information provided by the Aluminum Association and is not for design.
Key Words:	UNS A97075; ISO AlZn5.5MgCu(A); Aluminium 7075-O; AA7075-O; Al7075-O
Vendors:	Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Density	2.81 g/cc	0.102 lb/in³	AA; Typical

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	60	60	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	80	80	Converted from Brinell Hardness Value
Hardness, Vickers	68	68	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	228 MPa	33000 psi	AA; Typical
	<= 276 MPa	<= 40000 psi	Sheet and plate
Tensile Strength, Yield	103 MPa	15000 psi	AA; Typical
	<= 145 MPa	<= 21000 psi	Sheet and plate
Elongation at Break	>= 10 %	>= 10 %	Sheet and plate
	17 % @Thickness 1.59 mm	17 % @Thickness 0.0625 in	AA; Typical
	16 % @Diameter 12.7 mm	16 % @Diameter 0.500 in	AA; Typical
Modulus of Elasticity	71.7 GPa	10400 ksi	AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poissons Ratio	0.33	0.33
Shear Modulus	26.9 GPa	3900 ksi
Shear Strength	152 MPa	22000 psi	AA; Typical

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000380 ohm-cm	0.00000380 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	21.6 µm/m-°C @Temperature -50.0 - 20.0 °C	12.0 µin/in-°F @Temperature -58.0 - 68.0 °F
	23.4 µm/m-°C @Temperature 20.0 - 100 °C	13.0 µin/in-°F @Temperature 68.0 - 212 °F
	23.6 µm/m-°C @Temperature 20.0 - 100 °C	13.1 µin/in-°F @Temperature 68.0 - 212 °F	AA; Typical; average over range
	24.3 µm/m-°C @Temperature 20.0 - 200 °C	13.5 µin/in-°F @Temperature 68.0 - 392 °F
	25.2 µm/m-°C @Temperature 20.0 - 300 °C	14.0 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.960 J/g-°C	0.229 BTU/lb-°F
Thermal Conductivity	173 W/m-K	1200 BTU-in/hr-ft²-°F
Melting Point	477 - 635.0 °C	890 - 1175 °F	AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness. Homogenization may raise eutectic melting temperature 20-40°F but usually does not eliminate it.
Solidus	477 °C	890 °F	AA; Typical
Liquidus	635.0 °C	1175 °F	AA; Typical

Processing Properties	Metric	English	Comments
Annealing Temperature	413 °C	775 °F
Solution Temperature	466 - 482 °C	870 - 900 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	87.1 - 91.4 %	87.1 - 91.4 %	As remainder
Chromium, Cr	0.18 - 0.28 %	0.18 - 0.28 %
Copper, Cu	1.2 - 2.0 %	1.2 - 2.0 %
Iron, Fe	<= 0.50 %	<= 0.50 %
Magnesium, Mg	2.1 - 2.9 %	2.1 - 2.9 %
Manganese, Mn	<= 0.30 %	<= 0.30 %
Other, each	<= 0.05 %	<= 0.05 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.40 %	<= 0.40 %
Titanium, Ti	<= 0.20 %	<= 0.20 %
Zinc, Zn	5.1 - 6.1 %	5.1 - 6.1 %

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.

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MA7075O / 9594

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