Aluminum 7068-T6; 7068-T6511 Rod & Bar
Categories: Metal; Nonferrous Metal; Aluminum Alloy; 7000 Series Aluminum Alloy
Material Notes: Alloy 7068 is one of the highest strength extruded aluminum alloys. Used in aerospace, ordnance and light weight recreational applications where extremely high strength is required.

Some information supplied by Kaiser Aluminum.

Composition Notes:
Composition information provided by the Aluminum Association and is not for design.
Key Words: UNS A97068; Aluminium 7068; AA7068; Al7068
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Physical PropertiesMetricEnglishComments
Density 2.85 g/cc0.103 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 190190500 kg, 10 mm
Tensile Strength, Ultimate 710 MPa
@Diameter 12.7 mm		103000 psi
@Diameter 0.500 in
Tensile Strength, Yield 683 MPa
@Diameter 12.7 mm		99100 psi
@Diameter 0.500 in
Elongation at Break 9.0 %
@Diameter 12.7 mm		9.0 %
@Diameter 0.500 in		4D
Fracture Toughness 16.5 MPa-m½15.0 ksi-in½T-L
 27.5 MPa-m½25.0 ksi-in½L-T
Shear Strength 365 MPa53000 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000550 ohm-cm0.00000550 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 23.4 µm/m-°C
@Temperature 20.0 - 100 °C		13.0 µin/in-°F
@Temperature 68.0 - 212 °F
Specific Heat Capacity 1.05 J/g-°C
@Temperature 100 °C		0.250 BTU/lb-°F
@Temperature 212 °F
Thermal Conductivity 190 W/m-K1320 BTU-in/hr-ft²-°F
Melting Point 476 - 635 °C889 - 1180 °F
Solidus 476 °C889 °F
Liquidus 635 °C1180 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 85.48 - 88.85 %85.48 - 88.85 %As Balance
Chromium, Cr <= 0.050 %<= 0.050 %
Copper, Cu 1.6 - 2.4 %1.6 - 2.4 %
Iron, Fe <= 0.15 %<= 0.15 %
Magnesium, Mg 2.2 - 3.0 %2.2 - 3.0 %
Manganese, Mn <= 0.10 %<= 0.10 %
Other, each <= 0.050 %<= 0.050 %
Other, total <= 0.15 %<= 0.15 %
Silicon, Si <= 0.12 %<= 0.12 %
Titanium, Ti <= 0.10 %<= 0.10 %
Zinc, Zn 7.3 - 8.3 %7.3 - 8.3 %
Zirconium, Zr 0.050 - 0.15 %0.050 - 0.15 %
 
Descriptive Properties
Volumetric CTE m³/m³-K0.00006868°F/20°C

References for this datasheet.

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