A very high strength aerospace aluminium alloy. This alloy is used where high strength is required and where good resistance to general corrosion is NOT important. Strength depending upon temperature.
See where AA Standards Grade 7075 T73 falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.
Density
ρ2.81 - 3.1 g/cm³ at 23 °C
Dimensions
Dicke
Elongation
AElongation in 50 mm
Coefficient of thermal expansion
α2.3E-5 - 2.35E-5 1/K at 23 °C
Melting point
Tm480 - 635 °C
Specific heat capacity
cp910 J/(kg·K) at 23 °C
Thermal conductivity
λ130 - 160 W/(m·K) at 23 °C
Electrical conductivity
σel2.30E+7 S/m at 23 °C
Typical/derived value
Electrical resistivity
ρel4.31E-8 Ω·m at 23 °C
Typical value
Specific Electrical conductivity
40 % IACS
Typical value
Element
Weight %
Comment
86.9 - 91.4 %
Balance
5.1 - 6.1 %
2.1 - 2.9 %
1.2 - 2 %
0.18 - 0.28 %
Application areas
Aerospace
Brazing
general: no brazing is known or developed
Corrosion properties
Stress corrosion cracking: Operational damage in areas with tensile stresses transverse to the grain structure, limited damage to laboratory samples, general: good, without protection in industrial or seawater atmosphere
General machinability
General: poor (O), good to acceptable
Workability
general (condition): not suitable
This material data has been provided by MakeItFrom.com,ASM Handbook Volume 2 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials,WroughtAl_ElectricalResistivity,Righton Blackburns,AluKey.