1. Duralumin
By Group 2

2. Duralumin was developed by the German
History of Duralumin
Duralumin was developed by the German
metallurgist Alfred Wilm at Dürener Metallwerke
Aktien Gesellschaft. In 1903, Wilm discovered that
after quenching, an aluminium alloy containing
4% copper would slowly harden when left at room
temperature for several days. Further improvements
led to the introduction of duralumin in 1909.
The name is obsolete today, and mainly used in
popular science to describe the Al-Cu alloy system,
or 2000 series as designated by the International
Alloy Designation System (IADS) originally created
in 1970 by the Aluminum Association.

3. Duralumin It is strong and hard.
It is an alloy of aluminum that is 4 percent copper,
1 percent manganese, 0.5 percent, and 95.5 percent
aluminum
Ussually used for it’s lightness and strength.

4. making the frames of automobiles and speedboats
It is used for......
making aircraft frames
making the frames of automobiles
and speedboats
making household articles

5. Future Plans * 2011: Wire, rod, and bar for screw machine products.
Applications where good machinability and good strength
are required.
* 2014: Heavy-duty forgings, plate, and extrusions
for aircraft fittings, wheels, and major structural
components, space booster tankage and structure, truck
frame and suspension components. Applications requiring
high strength and hardness including service at elevated
temperatures.

6. * 2024: Aircraft structures, rivets, hardware, truck wheels,
screw machine products, and other miscellaneous structural
applications. The first age-hardened alloy ever discovered.
* 2036: Sheet for auto body panels.
* 2048: Sheet and plate in structural components for
aerospace application and military equipment.
* 2141: Plate in thicknesses of 40 to 150 mm
(1.5 to 6.0 in.) for aircraft structures.
* 2218: Forgings; aircraft and diesel engine pistons;
aircraft engine cylind

7. Sources http://www.britannica.com/EBchecked/topic/174106/duralumin