7075 Aluminum

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7075 Aluminum

• Byhttp//7075aluminum.org/

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• Lithium is the least dense elemental metal. When
  combined with aluminum to produce Al-Li alloys
  every 1 increase in lithium to the mix results
  in a 3 reduction in the density and therefore
  the weight of the resulting alloy the modulus
  also increases by approximately 5.

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• In addition to reduced weight Al-Li alloys also
  have increased stiffness, high elastic modulus,
  fatigue and cryogenic durability(the 3rd
  generation of Space Shuttle external fuel tanks
  are made of Al-Li alloy), however the increased
  stiffness of Al-Li alloys means reduced ductility
  and fracture resistance in the short transverse
  direction. Al-Li alloys have a high resistance to
  fatigue crack growth because of the jagged path
  cracks must follow through the alloy.

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• Some Al-Li alloys that are commercially
  available are Alloy 2090 developed as a
  replacement for 7075-T6, offering 8 lower
  density and 10 higher stiffness than the
  conventional alloy that is used heavily in
  aircraft structures. The 2090 alloy also has a
  higher corrosion resistance in salt-spray
  (marine) environment than 7075-T6.

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• Alloy 2091 developed as a replacement for
  conventional aluminum alloy 2024-T3, offering 8
  lower density and 7 higher modulus as well as
  superior damage tolerance. Alloy 8090 developed
  as a replacement for some of the most long
  serving of the commercial aluminum alloys, namely
  2014 and 2024.

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• Alloy 8090 has 10 lower density and 11 higher
  modulus than these conventional counterparts, and
  8090 exhibits superior mechanical properties at
  cryogenic temperatures. Weldalite 049 is a
  weldable Al-Li alloy designed to replace 2219 and
  2014 in spacecraft launch systems. Weldalite 049
  has a density of 2.7 g/cm3 has about 5 higher
  modulus than 2024, and tensile strengths of
  forged parts in excess of 700 MPa have been
  reported.

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• Al-Li is typically 3-5 times more expensive than
  other aluminum alloys due to the high cost of
  Lithium as well as high processing and handling
  costs. Al-Li alloys are typically used in the
  construction of aircraft wing edges and access
  covers.

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• Military and space applications are also common
  as main wing boxes and main fuselage. Al-Li
  alloys should not be combined with some other
  aluminum alloys as there is a potential for
  explosive reactions.

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• Long gone are the days of setting up giant tents
  that all soldiers sleep together in. Marine and
  Army soldiers of today get high tech 2 man tents
  that are easy to setup and transport. With
  today's military men constantly on the move, they
  need light weight and highly portable tents.

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• A military combat II dome tent fills the need
  for the average camper and hunter to sleep
  securely. Styled after those used by the US
  Marines, this tent is light weight, setups in a
  flash, and take down is just as simple.

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• Heavy duty fabrics that are long lasting are
  required for combat operations, this is built in
  with the Catoma tent. The Denier polyester fabric
  is a high count material with a 2000 mm water
  repellent rating. Totally UV resistant for long
  life.

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• Every camper knows what a chore it can be
  getting into and out of some tents. Our combat
  personal know this too. Having to move large gear
  securely and easily through any opening. Catoma
  offers a extra large door in the front vertical
  wall, this upright wall also helps to provide
  extra room inside the tent. Both front and rear
  doors are fully screened for ventilation and bug
  protection.

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• As with the military style tent, the high
  quality 7075 aluminum poles provide the strength
  and durability that is needed by the most
  demanding users. The tent even has fully taped
  seams, just like the military version, for added
  protection from all types of weather.

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• For added convenience and shelter, a reversible
  fly that is attached with adjustable quick
  release buckles is included. This fly is green on
  one side for blending into wooded areas and tan
  on the other for desert or light regions. The fly
  can even be used separately from the tent as a
  canopy shade.

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• A few other features of this tent include,
  compression bag for tent/fly storage, bag for
  aluminum poles and aluminum stakes storage, large
  38 square feet interior footprint gives ample
  space for two adults, storm flaps on all openings
  loft to suspend your gear for added interior room
  and convenience pockets. Fly extends over front
  wall to create 20 square feet vestibule if
  additional storage area is needed.

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• If you have an urge to camp military style, or
  need a light weight tent for hunting, you have to
  look no further the Catoma military combat style
  tent.

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7075 Aluminum

• For more information, please visit
  http//7075aluminum.org/