disadvantages of aluminium industry

  • what are the disadvantages and advantages of aluminum ...

    Jun 15, 2008 · Disadvantages: 1) aluminum is not particularly strong - the strongest varieties are around 75,000 psi tensile strength (compared to 240,000 psi tensile strength for the strongest varieties of heat-treated steel) 2) aluminum is not very hard - it's easy to scratch 3) aluminum is more expensive than steel of the same strength