7075-T6

UNS A97075 aluminium
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Zn-Mg-Cu high-strength aluminium alloy, one of the strongest commercially available. Used for upper wing skins and structural airframe components where maximum strength-to-weight is required.

Applicable Standards

  • AMS 2770
  • ASTM B209
  • UNS A97075

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Al 87.2 91.4 ~89.3
Zn 5.1 6.1 ~5.6
Mg 2.1 2.9 ~2.5
Cu 1.2 2.0 ~1.6
Cr 0.18 0.28 ~0.23
Fe — 0.5 ~0.25
Si — 0.4 ~0.2
Al 87.2–91.4% Zn 5.1–6.1% Mg 2.1–2.9% Cu 1.2–2.0% Cr 0.18–0.28% Fe 0.0–0.5% Si 0.0–0.4%

Typical Applications

  • Aircraft upper wings
  • Fuselage frames
  • Sporting goods
  • Armour
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