Hardfacing with precious alloys makes it possible to ennoble, at a contained cost, base materials of a low cost. Current knowledge puts this technology among those able to provide an increased benefit in terms of increasing production, due to fewer machine stops resulting in higher efficiency of the hardfaced pieces.

To obtain these results a careful analysis of the problem needs to be carried out to identify the ideal filler material and welding process for each individual situation. We all know that the cost of the material and the labour required to apply it, in relation to the operational result and adjusted for the costs due to a lack of production resulting from machine stoppages for maintenance interventions, represents the only comparable value among traditional solutions and the evaluation of the innovative proposal of hardfacing.

A correct analysis of the problem must take into account the life cycle of the hardfaced piece in relation to the life cycle of the entire complex where it is located, so as to obtain a uniform decline of all the equipment. Only in this way will it be possible to perform maintenance with the system still partially efficient in all its parts.