Originally Posted by
guy153
Why ER312? I've noticed some people use various stainless rods but never known why. I just use ER70-S either 2 or 6 I can't remember which.
It seems to flow better than ER70S2 and I can use it for welding dissimilar metals like stainless dropouts to chromoly stays. Weldmold 880 is popular with framebuilders, but I believe that ER312 is the same stuff and costs less.