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Re: Low Temperatures and structural steel

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>I have been able to locate information on elevated steel temperatures but 
>I have had little success in finding literature or guidance on steel in 
>this low temperature range.
The problem at low temperatures is brittle fracture, typically as the 
result of a weld defect or cyclic stress at a stress concentration. You 
need to use steel that will provide notch toughness at low temperatures. 
Literature about the subject is everywhere. The AISC web site is a great 
place to start.

Christopher Wright P.E.    |"They couldn't hit an elephant from
chrisw(--nospam--at)        | this distance"   (last words of Gen.
___________________________| John Sedgwick, Spotsylvania 1864)