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 Post subject: Impacts SA-333
PostPosted: Thu Nov 18, 2010 11:44 pm 
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Joined: Fri May 02, 2008 8:45 pm
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I hope some one can give me an opinion on this. Im thinking about rejecting a lot of pipe unless someone proves me wrong and shows me in the specs why.
5"pipe sch xxs (.375)wall
SA-333 gr 6
The Impact size reads .394x.295 temp -45c (Results ok well above)
Should the temp have been 48c
MDK


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 Post subject: Re: Impacts SA-333
PostPosted: Fri Nov 19, 2010 2:35 am 
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Agree, 3 Degree C temperature reduction should have been applied to impect test temperature value (-45 Deg C) for full/ standard size specimen


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 Post subject: Re: Impacts SA-333
PostPosted: Fri Nov 19, 2010 3:47 am 
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I have sent a request to my supplier to contact the manufacturer about this.
I have another cert from the same manufacturer that has a impact size of .394 x .295....But the pipe wall thickness is .281 .....How can that be?

Now i gotta do a corrective action.
Im very interested in what he manufacturer will say.

But how can the sample size be larger? :?


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 Post subject: Re: Impacts SA-333
PostPosted: Fri Nov 19, 2010 11:04 pm 
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What if the wall thickness was on the low end of the wall thickness spec.


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 Post subject: Re: Impacts SA-333
PostPosted: Sat Nov 20, 2010 1:02 am 
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gonna have it tested again ...they seem to think its fine and so does the manufacturer....after 3 different trys to convince me the last story he told me was the sample wall thickness was under .375 wall thickness.but within spec......????


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