I am making some glass blowing irons with 310 heads and 316 tube shafts.
> The local supplier's normal supplier lists 308, 309, 312, and 316 rods.
> I have seen recommended using 310 for joining 310. From the previous
> list is any particular one preferable. The weld area may get upto dull
> red on occasions.
>
>
In message , David Billington writes
Use 309L,has best resistance to cracking for dissimilar austenitic stainless steels.
309L, 312, or 347.
309L is more common and will work fine.
347 can take more heat but is kind of rare. 312 is also rather rare.
Go for 309L. It is fairly easy to weld with and works well.
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