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    chevrod's Avatar
    chevrod Posts: 2, Reputation: 1
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    #1

    Sep 12, 2007, 08:05 AM
    extruded aluminum material hardness by numeric value
    What is the difference between a 7075 T73511 extruded aluminum alloy shape and the same shape in a 7075-T6511?
    Lowtax4eva's Avatar
    Lowtax4eva Posts: 2,467, Reputation: 190
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    #2

    Sep 12, 2007, 08:12 AM
    The T6 or T7 is the temper number, T6 would be less hard but more flexible T7 would be harder but more brittle.

    Is that what you were wondering?
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    chevrod Posts: 2, Reputation: 1
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    #3

    Sep 13, 2007, 06:38 AM
    Actually I was curious about the numbers following the T6/T7. I do know the numbers represent extruded shapes but what else do they mean?
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