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7475 aluminium alloy

Wrought aluminium zinc alloy From Wikipedia, the free encyclopedia

7475 aluminum alloy (Adirium) is a wrought alloy with high zinc weight percentage. It also contains magnesium, silicon and chromium.[1]

7475 alloy can not be welded. It has more spring back because of its strength. It has high machinability.[citation needed]

Chemical composition

More information Element, Content (%) ...
Element[1] Content (%)
Aluminum 90.3
Zinc 5.7
Magnesium 2.3
Silicon 1.50
Chromium 0.22
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Properties

More information Properties, Value ...
Properties[1] Value
Density 2.6–2.8 g/cm3 (0.094–0.101 lb/cu in)
Melting point 546 °C (1,015 °F)
Elastic modulus 70–80 GPa (10,000–12,000 ksi)
Poisson's ratio 0.33
Thermal conductivity 177 W/m/K (0.040 hp/ft/°R)
Ultimate Tensile Strength[2] 531 MPa (77.0 ksi)
Elongation at Break[2] 12%
Modulus of Elasticity[2] 71.7 GPa (10,400 ksi)
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Applications

  1. Shell casings
  2. Aircraft

[1]

References

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