It helps when you have a stainless alloy admixture at hand so to speak.
I have noticed that when welding on hand wrench material. At the time I
just let the weld cool in still air.
I didn't experience a fracture during use. I was partially expecting a
problem even though the weld looked nice, smooth and shiny.
I welded some chrome vanadium things together today (needed to make a
quick socket wrench for a particular bolt) and I was surprised as to
how easy it is to make SUPER nice looking welds.