Every cast I weld is different. 4043 has less tendency to crack with the inconsistencies of welding cast just because it's more ductile.I'm generally not worried about that small gain in tensile strength with cast repairs as they are usually one of a kind, somewhat dirty, unknown contents and such. That's all. Most cast repairs I do are a design flaw so I reinforce them. I'd gladly use 4943 if that's all I had but I have both and the ductility helps with castings as they are mating surfaces that need to have a minor "give" to them. Dave
No announcement yet.
4943 for 356 Aluminum TIG Casting repair..?