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  #21  
Old 12-22-2009, 06:29 PM
hlfuzzball hlfuzzball is offline
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Verrrrrrry interesting !

Thanks for the info.
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  #22  
Old 12-22-2009, 06:55 PM
hlfuzzball hlfuzzball is offline
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I stand corrected, 3003 alloy is used for can bodies.

So 3003-H18 (Temper) is used , that's why it's so rigid and strong for it's thin sheet.

I Googled 3003-H18 and found this chart:

Mechanical Properties



Tensile Strength


Yield Strength


Elongation


Brinell Hardness




ksi


MPa


ksi


MPa


% in 2"
(50mm)




3003-0


16.0

110

6.0

40

30

28
3003-H12


19.0

135

18.0

125

10

35
3003-H14


22.0

155

21.0

155

8

40
3003-H16


26.0

180

25.0

175

5

47
3003-H18


29.0

205

27.0

190

4

-
-




Fabrication Guide






Weldability




Corrosion Resistance


Formability


Machinability


Mpa


TIG


Resist.

3003-0


AAEAAA
3003-H14



ABDAAA
3003-H18



ACDAAA


So, I assume the can stock reverts to 3003-0 after annealing with the torch and then can be easily formed.
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  #23  
Old 12-22-2009, 09:40 PM
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tdoty tdoty is offline
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Thanks for the info. I stand corrected as well! I would guess the drawing and ironing operations would have an effect as well, thus the decreased ductility after forming.

Since I have never used 3003-H0 (to my knowledge), I can't comment on how it compares. However, if properly and fully annealed, it should return to a "dead soft" state.

Tim D.
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  #24  
Old 12-27-2009, 08:32 PM
Peter Miles Peter Miles is offline
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Another possible source for thin aluminum is aluminum printing plates, as used in newspaper plants, etc. The alloy may be too still to form well, however. A quick search showed that some of it is only 0.15 millimeter = 0.005905512 inch thick.
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  #25  
Old 12-28-2009, 04:45 AM
Einar_S Einar_S is offline
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Did you figure out how to get the coating off?
I have lots of these plates, but never found out how get the coating off.
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