Aluminium 7129 alloy is a heat treatable wrought alloy.
Chemical composition ElementWeight Percentage (%)Aluminum90.9 - 94Zinc4.2 - 5.2Magnesium1.3 - 2Copper0.50 - 0.90Iron≤ 0.30Titanium≤ 0.050Vanadium≤ 0.050Gallium≤ 0.030Silicon≤ 0.15Chromium≤ 0.10Manganese≤ 0.10Remainder (each)≤ 0.050Remainder (total)≤ 0.15
Properties PropertiesMetricDensity2.78 g/cm3Youngs modulus69 GPaElongation at Break9.0 % to 9.1 %Fatigue Strength150 to 190 MPaShear Modulus26 GPaShear Strength250 to 260 MPaTensile Strength: Ultimate (UTS)430 MPaSpecific Heat Capacity880 J/kg-KThermal Conductivity150 W/m-K
Applications Aircraft manufacturing sector
References
External links Comparison of 6061 and 7129 alloy http://www.matweb.com/search/datasheet.aspx?matguid=d62fafde9ffe4ef68614c5e2ab5869e5