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Externaltank

A Space Shuttle External Tank (ET) on its way to the Vehicle Assembly Building at Cape Kennedy.

The metalEdit

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ManufacturingEdit

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Properties and usageEdit

It is 30 % stronger and 5 % less dense than the Al 2219 alloy used in the original Space Shuttle's external tank.

Metallurgical formulaEdit

The alloy composition of Al 2195 aluminium is:

  1. Aluminium: 91.9 to 94.9%
  2. Copper: 3.7 to 4.3%
  3. Lithium: 0.8 to 1.2%
  4. Manganese: 0.25 to 0.8%
  5. Silver: 0.25 to 0.6%
  6. Zirconium: 0.08 to 0.16%
  7. Iron: 0.15% max
  8. Silicon: 0.12% max
  9. Titanium: 0.1% max
  10. Zinc: 0.25% max
  11. Residuals: 0.15% max

Corrosion and toxicityEdit

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Nations that produce itEdit

  1. USA (most)
  2. Canada (small)
  3. Japan (minimal)
  4. UK (minimal)

Also seeEdit

  1. What is an 'alloy'?
  2. Space Shuttle
  3. Lockheed D-21
  4. Useful metals
  5. Nickel
  6. What is an 'alloy'
  7. What is 'galvanizing'
  8. Thoriated magnesium (AKA- Mag-Thor)

SourcesEdit

  1. https://en.wikipedia.org/wiki/Aluminium-lithium_alloy
  2. http://aluminumlithium.com/
  3. https://en.wikipedia.org/wiki/Aluminium_alloy#Aerospace_alloys
  4. http://www.smithshp.com/metals/aluminium-lithium-alloys.htm
  5. https://ntrs.nasa.gov/search.jsp?R=20140011616
  6. http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-2002-cr211942.pdf
  7. http://www.aluminum-alloy.com/aluminum-alloy-2195.html
  8. http://www.aluminum-alloy.com/products/polished-aluminum-mirror
  9. http://www.matweb.com/search/datasheettext.aspx?matguid=4363dafc7f5545688506d8b4af1e9468
  10. http://www.matweb.com/search/datasheetText.aspx?bassnum=MA9WELD8
  11. https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19980017087.pdf
  12. http://n.stuccu.co.uk/s/Aluminum+Lithium
  13. https://www.idealprice.co.uk/search?adid=iaCkp56jz52hrI6jz6afnM%2FX0Fehnp6jz52hrI6jz6afnM%2FX0FelcMjD2KRYlsnD1W6T&baa=A&ort=Alloy-Aluminum-Sale&q=Alloy-Aluminum-Sale&utm_campaign=A_3&utm_content=Alloy+Aluminum&utm_medium=cpc&utm_source=bing&utm_term=%2BAlloy+%2BAluminum
  14. https://www.alibaba.com/premium/aluminium_alloy.html?src=sem_bing&cmpgn=131989355&adgrp=2732718790&tgt=kwd-39005196390&KwdID=39005196390&mtchtyp=b&bdmtchtyp%20=bb&ntwrk=o&device=c&creative=6285145305&p1=default&p2=default&p3=default&Query=Aluminium-lithium%20alloy%20(Al%202195)
  15. http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-2002-cr211942.pdf
  16. http://www.aluminum-alloy.com/aluminum-alloy-2195.html
  17. http://www.aluminum-alloy.com/aluminum-alloy-2195.html
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