7475 aluminium alloy

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

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

Chemical composition

Element Content (%)
Aluminum 90.3
Zinc 5.7
Magnesium 2.3
Silicon 1.50
Chromium 0.22

Properties

Properties 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 531 MPa (77.0 ksi)
Elongation at Break 12%
Modulus of Elasticity 71.7 GPa (10,400 ksi)

Applications

  1. Shell casings
  2. Aircraft

References

  1. ^ a b c d "Aluminum 7475 alloy". 31 August 2012. Archived from the original on 2021-01-09.
  2. ^ a b c "7475 alloys". Archived from the original on 2004-05-21.

External links

  1. https://www.suppliersonline.com/propertypages/7475.asp
  2. https://www.suppliersonline.com/propertypages/7475.asp
  3. https://www.makeitfrom.com/material-properties/7475-AlZn5.5MgCuA-Aluminum
  4. Tanaka, Hiroki; Minoda, Tadashi (1 July 2014). "Mechanical properties of 7475 aluminum alloy sheets with fine subgrain structure by warm rolling". Transactions of Nonferrous Metals Society of China. 24 (7): 2187–2195. doi:10.1016/S1003-6326(14)63331-8.
  5. https://www.efunda.com/Materials/alloys/aluminum/show_aluminum.cfm?ID=AA_7475&show_prop=all&Page_Title=AA%207475
Aluminium alloys
Introduction
Al 1000 series (pure)
Al-Cu 2000 series
Al-Mn 3000 series
Al-Si 4000 series
Al-Mg 5000 series
Al-Mg-Si 6000 series
Al-Zn 7000 series
8000 series (misc.)
Named alloys