Aluminum 7049-T73; 7049-T7352

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Aluminum 7049-T73; 7049-T7352
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:	AA7049-T73; AA7049-T735, UNS A97049; Aluminium 7049-T73 and Aluminium 7049-T7352; Al7049-T73
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Physical Properties	Metric	English	Comments

Density	2.84 g/cc	0.103 lb/in³	AA; Typical

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	135	135	AA; Typical; 500 g load; 10 mm ball
Hardness, Knoop	170	170	Converted from Brinell Hardness Value
Hardness, Rockwell A	50.5	50.5	Converted from Brinell Hardness Value
Hardness, Rockwell B	82	82	Converted from Brinell Hardness Value
Hardness, Vickers	155	155	Converted from Brinell Hardness Value
Tensile Strength, Ultimate	517 MPa	75000 psi	AA; Typical
Tensile Strength, Yield	448 MPa	65000 psi	AA; Typical
Elongation at Break	12 % @Diameter 12.7 mm	12 % @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
Fracture Toughness	24.0 MPa-m½	21.8 ksi-in½	K(IC) in S-L Direction
	34.0 MPa-m½	30.9 ksi-in½	K(IC) in L-S Direction
	36.0 MPa-m½	32.8 ksi-in½	K(IC) in L-T Direction
Shear Modulus	27.6 GPa	4000 ksi
Shear Strength	303 MPa	44000 psi	AA; Typical

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000432 ohm-cm @Temperature 20.0 °C	0.00000432 ohm-cm @Temperature 68.0 °F	AA; Typical

Thermal Properties	Metric	English	Comments
CTE, linear	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
	25.0 µm/m-°C @Temperature 20.0 - 300 °C	13.9 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.960 J/g-°C	0.229 BTU/lb-°F
Thermal Conductivity	154 W/m-K	1070 BTU-in/hr-ft²-°F	AA; Typical at 77°F
Melting Point	477 - 635.0 °C	890 - 1175 °F	AA; Typical range based on typical composition for wrought products >= 1/4 in. thickness
Solidus	477 °C	890 °F	AA; Typical
Liquidus	635.0 °C	1175 °F	AA; Typical

Component Elements Properties	Metric	English	Comments
Aluminum, Al	85.7 - 89.5 %	85.7 - 89.5 %	As remainder
Chromium, Cr	0.10 - 0.22 %	0.10 - 0.22 %
Copper, Cu	1.2 - 1.9 %	1.2 - 1.9 %
Iron, Fe	<= 0.35 %	<= 0.35 %
Magnesium, Mg	2.0 - 2.9 %	2.0 - 2.9 %
Manganese, Mn	<= 0.20 %	<= 0.20 %
Other, each	<= 0.05 %	<= 0.05 %
Other, total	<= 0.15 %	<= 0.15 %
Silicon, Si	<= 0.25 %	<= 0.25 %
Titanium, Ti	<= 0.10 %	<= 0.10 %
Zinc, Zn	7.2 - 8.2 %	7.2 - 8.2 %

References for this datasheet.

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MA7049T73 / 9572

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