most any rod will stick to cast, what makes the weld fail is the free carbon that forms (concentrates between the weld and the cast, this is a problem with nickel welding cast too. If you want the finials to stay stuck even during rough treatment, wire brush or polish grind the finial end and the bottom of the cast finial and soft solder them on with acid core solder.
If they are not a really good fit when you tack weld them on, someone grabbing the finial will break the weld at the free carbon zone.
__________________
Irnsrgn
Knowledge must be shared or it lies dead in the mind.
The Blacksmith must use Hammer and Flame to force the iron down the path of his own choosing.
I usually find it much easier to be wrong once in while than to try to be perfect.
|