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Re: welding SS to A36

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On Aug 11, 2005, at 6:15 PM, Eli Grassley wrote:

Does anyone have experience with welding stainless (A304) steel to regular A36 steel?  Anything special to be aware of on the engineering end, or can I just leave it to the welder to do his job?
Only leave it to a welder who knows how to do it. It's doable and done all the time, but there's a lot more to it than meets the eye. For example, the carbon steel frequently has to be buttered with 309 or 310 stainless before you can make a sound joint. This makes the metallurgical transition from austenitic to carbon steel less abrupt. There are also thermal expansion and corrosion issues. Make the weld shop show you written procedures and welder qualifications.

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

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