Aluminum vs steel

  • Thread starter smartin1
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  • #1
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I'm a little confused and i would appreciate if someone could enlighten me on how there are some claims of certain manufacturers that the strength or load bearing capacities of aluminum I beams can surpass steel I beams? is that false advertising or can that statement ring true?

Please help.
 
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Answers and Replies

  • #2
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Could well be true; it all depends on the alloys and dimensions of the I beam itself.
 
  • #3
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Could well be true; it all depends on the alloys and dimensions of the I beam itself.

can you provide any examples to clarify?
 
  • #4
Astronuc
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Science Advisor
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Example of high strength Al alloys - http://www.vtol.org/f65_bestPapers/structuresAndMaterials.pdf [Broken]

It depends on the alloy, composition, heat treatment (annealed vs cold worked, stress-relieved), and component geometry.

One can find annealed steels or cold-worked steels, as well as high strength steels.
 
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