Aluminum 7175-T66

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Aluminum 7175-T66
Categories:	Metal; Nonferrous Metal; Aluminum Alloy; 7000 Series Aluminum 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:	UNS A97175; Aluminium 7175-T66; AA7175-T66; Al7175-T66
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Physical Properties	Metric	English	Comments

Density	2.80 g/cc	0.101 lb/in³	AA; Typical

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	150	150	500 kg load with 10 mm ball
Hardness, Knoop	191	191	Converted from Brinell Hardness Value
Hardness, Rockwell A	53.5	53.5	Converted from Brinell Hardness Value
Hardness, Rockwell B	86	86	Converted from Brinell Hardness Value
Hardness, Vickers	170	170	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	590 MPa	85600 psi
Tensile Strength, Yield	520 MPa	75400 psi
Elongation at Break	11 %	11 %	In 5 cm; Sample 1.6 mm thick
Tensile Modulus	72.0 GPa	10400 ksi	Compressive Modulus is about 2% higher
Poissons Ratio	0.33	0.33	Estimated from trends in similar Al alloys.
Fatigue Strength	160 MPa @# of Cycles 5.00e+8	23200 psi @# of Cycles 5.00e+8
Shear Modulus	27.0 GPa	3920 ksi	Estimated from similar Al alloys.
Shear Strength	350 MPa	50800 psi	Calculated value.

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000479 ohm-cm	0.00000479 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	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	0.864 J/g-°C	0.207 BTU/lb-°F
Thermal Conductivity	142 W/m-K	985 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	516 °C	960 °F	must be preceded by soak at 890 to 905°F; quench from lower temperature
Aging Temperature	121 - 177 °C	250 - 350 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	88 - 91.4 %	88 - 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	<= 0.20 %	<= 0.20 %
Magnesium, Mg	2.1 - 2.9 %	2.1 - 2.9 %
Manganese, Mn	<= 0.10 %	<= 0.10 %
Other, each	<= 0.05 %	<= 0.05 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.15 %	<= 0.15 %
Titanium, Ti	<= 0.10 %	<= 0.10 %
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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MA7175T66 / 9613

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