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Re: Weldability of Bolts

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>What bolt specifications ARE weldable and where (AWS D-1.1?) is
>this to be found?
As a general rule, bolts are heat treated or strain hardened, so welding 
heat makes them pretty much useless for bolts. Weldable studs exist which 
are basically spot or resistance welded so that welding heat is highly 
localized. You'll probably need to look over the ASTM fastener specs for 
a bolt made from plain vanilla carbon steel. 

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