High nickel alloy bare wire for TIG or MIG cast iron welding. Nickel 99T and 99Mare the TIG (99T) or MIG (99M) equivalents to Nickel 99 electrode. It is developed primarily for automatic and semi-automatic welding of ductile, malleable or gray cast iron to itself or dissimilar metals such as low alloy and carbon steel, stainless steel, iron, copper MonelĀ®, etc. Nickel 99T and 99Mare excellent for the buildup of worn parts, repairing machining errors or detective castings where maximum machineability of the deposit is required. Nickel 99T and 99M can be used in any position. Produces high quality welds with a minimal amount of effort. Weld deposits are strong, dense and fully machinable. Color will match that of cast iron.