7 Series Aluminium Alloy Plate With Ultimate Tensile Strength of 32
to 88 ksi
With the growth of aluminum within the welding fabrication
industry, and its acceptance as an excellent alternative to steel
for many applications, there are increasing requirements for those
involved with developing aluminum projects to become more familiar
with this group of materials. To fully understand aluminum,it is
advisable to start by becoming acquainted with the aluminum
identification / designation system, the many aluminum alloys
available and their characteristics.
|Item||Typical Thickness / mm||Tensile Strength||Yield Strength||Elongation / %||Standard|
|7050 sheet T76||0.5-6.0||535||485||10||SAE AMS 4243|
|7050 plate T7451||6.0-225.0||530||460||10||SAE AMS 4050|
|7050 palte T7651||6.0-100.0||550||480||10||SAE AMS 4201|
7XXX Series Alloys – (heat treatable – with ultimate tensile strength of 32 to 88 ksi)
These are the aluminum / zinc alloys (zinc additions ranging from
0.8 to 12.0%) and comprise some of the highest strength aluminum
alloys. These alloys are often used in high performance
applications such as aircraft, aerospace, and competitive sporting
equipment. Like the 2xxx series of alloys, this series incorporates
alloys which are considered unsuitable candidates for arc welding,
and others, which are often arc welded successfully. The commonly
welded alloys in this series, such as 7005, are predominantly
welded with the 5xxx series filler alloys.
Zinc is the primary alloying agent for this series, and when
magnesium is added in a smaller amount, the result is a
heat-treatable, very high strength alloy. Other elements such as
copper and chromium may also be added in small quantities. The most
commonly known alloys are 7050 and 7075, which are widely used in
the aircraft industry. A famous brand watch, released in 2015, was
made from a custom 7xxx series alloy.
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