Re: Stud welding stainless

How would you know just how much carbide precipitation has taken place
and if there is a possibility of future cracking? Will a 30 degree standard
proof test be adequate?
There is close to 6000 pounds of plate taking multiple studs. I worry
about litigation and due diligence if something fails months or years from
now.
Randy

<dcaster@xxxxxxx> wrote in message
news:1156867459.812388.80690@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
This is really a guess, but I think it would work. The problem with
welding mild steel to stainless is that the carbon from the mild steel
mixes with the stainless and forms chrome carbides. So you generally
need to use filler rod with a higher chrome percentage than the
original stainless.

My guess with stud welding in that there is much less mixing, and
therefore less of a problem. 316 has higher chrome and nickel so would
be less of a problem than say 304. You might get a better answer here,
but the best thing would be to try it.

Dan

R. Zimmerman wrote:
Can you safely stud weld mild steel studs to stainless? ( 316)
I am highly suspicious of this because welding mild steel to SS can have
problems if the incorrect filler is used. In the case of a stud weld no
filler is used. Is there a problem?
Randy



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