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ricklach
Joined: 20 Jun 2006
Posts: 127
Location: Kernville, Calif.
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 Posted: Tue Jun 24, 2008 6:42 am Post subject: A question to Randall H. |
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I was buying some Aluminum at the local supplier here in Bakersfield and one piece of 2 x 3/16 flat stock was labeled “6061-T6511”. No one could explain the “6511” call out. After some research I found a Spec. that referred to the tempering of the metal in a slightly different way that the ”T6” call out. Every one I’ve asked said that it’s not an issue. So the question to you is:
Do you know what the difference is between the two call outs? If not that’s OK and thanks for your time.
Rick
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bobefx(at)yahoo.com
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| Posted: Tue Jun 24, 2008 7:19 am Post subject: A question to Randall H. |
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Rick,
Google 6061-t6 vs 6061-t6511 and a lot of info will come up and a site to ask questions.
Bobefx
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bcchurch
Joined: 10 Dec 2007
Posts: 25
Location: Racine, WI
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| Posted: Tue Jun 24, 2008 9:39 am Post subject: Re: A question to Randall H. |
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Rick,
The "T6" refers to the heat treatment as being solution heat treated and artificially aged. The -511 is added to specify applicability to extruded rod, bar, tubes or shapes when stretched after solution heat treatment. If you have rolled plate and not an extruded bar, the temper designation should be T651, not T6511.
My ASM Metals Handbook lists the same typical mechanical properties for both 6061-T6 and 6061-T651. Further, ASTM B221 (spec for extruded aluminum bars, rods, etc) calls out the same mechanical property limits for 6061-T6, T651 and T6511.
Hope that helps...
Regards,
Ben
do not archive
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Ben Church
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ricklach
Joined: 20 Jun 2006
Posts: 127
Location: Kernville, Calif.
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| Posted: Tue Jun 24, 2008 3:20 pm Post subject: Re: A question to Randall H. |
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Thanks everyone for providing me with some additional conversation about these call outs.
Rick
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