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PostPosted: Thu Apr 04, 2013 4:27 pm 
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Attachment:
IMG_1876 (800x600) (300x225).jpg
IMG_1876 (800x600) (300x225).jpg [ 74.37 KiB | Viewed 399 times ]

This is another fill plug and cap in the raw. Getting a knurling tool tomorrow to complete the middle section for removal and tightening.


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PostPosted: Thu Apr 04, 2013 8:44 pm 
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Location: Alberta Canada
T6 6061 is strong, but it's not going to have the same shear factor that steel will have being threaded into your tube. If your pressure value is to exceed 1800psi. I wont error on caution as to your fill end cap. JMO

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PostPosted: Thu Apr 04, 2013 9:57 pm 
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Location: P.G. B.C.
T6 6061 - is that aluminum?

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PostPosted: Thu Apr 04, 2013 10:04 pm 
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Yes it is Daryl.

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PostPosted: Fri Apr 05, 2013 1:26 am 
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This will be tested to find out at what point it shears. Always proceeding with caution.


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PostPosted: Fri Apr 05, 2013 11:55 am 
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Ult.Shear Strength = 0.50 x Ult. Tensile Strength (estimation)
T6 temper 6061 has an ultimate tensile strength of at least 42,000 psi (Wikipedia)


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PostPosted: Fri Apr 05, 2013 12:48 pm 
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I would not use aluminum for a pcp fill assembly either. May be safe but I prefer steel in that application. Just my 2 cents.



George.


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PostPosted: Fri Apr 05, 2013 2:07 pm 
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pelletguy wrote:
This will be tested to find out at what point it shears. Always proceeding with caution.


So are we to understand you plan on testing this until shear or to a 3 to 1, or 4 to1 safety margin. ??? And what media are you using for testing, compressed air or compressed fluid ???

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