Mig Welding Cast Iron head Welding Discussion
Nickel 99 can be cut, drilled, milled, and ground. Ni 55 can be ground. The low nickel rod can't be even ground. Comment. Post Cancel. N20Silverado. Senior Member. Join Try fixing the pin hole using O/A & brazing rods if that doesn't work grind out the area & weld in a new piece of metal using brazing rods.