Aluminium 7075

Key Features
  • High tensile strength and ductility
  • Good fatigue resistance
  • Excellent for structural applications
  • Good corrosion resistance
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Key Features
  • High tensile strength and ductility
  • Good fatigue resistance
  • Excellent for structural applications
  • Good corrosion resistance

Overview

7075 aluminium alloy (AA7075) is an aluminium alloy, with zinc as the primary alloying element. It has excellent mechanical properties, and exhibits good ductility, high strength, toughness and good resistance to fatigue. It is one of the most commonly used aluminium alloy for highly stressed structural applications and has been extensively utilized in aircraft structural parts.

Chemical Composition

Element Symbol Range %
Aluminium Al Balance
Zinc Zn 5.1-6.1
Magnesium Mg 2.1-2.9
Copper Cu 1.2-2.0
Chromium Cr 0.18-0.28
Manganese Mn 0.3 max
Titanium Ti 0.2 max
Silicon Si 0.40 max
Iron Fe 0.50 max
Others   0.15 max

Physical Properties

Metric Imperial
MaterialUnitAluminium 7075-T6
Tensile Strength Minpsi83000
Yield Strength Minpsi73000
Elongation at Break%11%
Hardness MinBHN150