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TENSILE-328N Unitor TENSILE-328N is a rutile-acid high alloy electrode capable of welding mild steel, high tensile steel and the different steels we refer to as problems steel or difficult to weld steel. This cover Spring Steel, Carbone Steel, Chrome-Nickel Steel, Vanadium Steel, High Speed Steel, Tool Steel and Manganese Steel. These types of steel are commonly used in main engine rocker arms and push rods, pump shafts, gear wheels, etc. Should you have no electrode for welding Cast Iron on-board, it can even be used for this purpose. The TENSILE -328N can be used for joining as well as building up a worn down surface. It is simply referred to as a problem solver. The TENSILE-328N has excellent weldability and produces a deposit free from pores. The deposit can be filed, and may be polished to high gloss finish. The slag is self –releasing. Hardness as welded 200-300HB (Hardness Brinell) but can work harden to approximately 450HB. If in doupt about the base materials chemistry the TENSILE-328N is the most likely electrode to provide a good result.