A premium quality 55% Nickel-45% Iron bare wire for TIG or MIG welding of cast iron components to themselves or to steel. NICKEL 55T and 55M are the TIG and MIG equivalents of NICKEL 55 (coated electrodes).

It’s developed for high deposition and greater welding efficiency using automatic or semi-automatic equipment. NICKEL 55T/55M is excellent when doing large scale production welding of ductile (nodular) cast iron, malleable cast iron or gray cast iron to themselves or to carbon and low alloy steel. Preheating is generally needed and very important when welding heavier and thicker castings.

More common uses include the repair of thick and highly restrained weldments, worn or broken parts and for salvaging defective castings that require the higher tensile strength of steel, such as found in castings containing phosphorus levels greater than 0.20%.  NICKEL 55T and 55M contain sufficient levels of carbon which promote the formation of graphite in the weld deposit, thereby reducing shrink age stresses and in turn, reducing the possibility of heat-affected zone cracking. Weld deposits are machinable using normal methods but can be made easier by stress relieving the part at approximately 1100oF.