No. There is a lot of different grades of stainless. 304, 316, 317, 317LM, hastelloy, inconnell. I am sure there are others...its been a while.
Just welding it with stainless will not hold. There is a particular wire made for just welding hot roll to stainless. I just wish I could remember the number. It was rare that we ever did that in the shop.