SULFINIZED TREATMENT OF A36 STEEL PROBETS

The use of thermochemical treatments has been of great importance for metal alloys, modifying the hardness due to the deposition of surface layers, an essential property for machinery elements. The components of heavy machinery are subjected to heating caused by the friction and stress to which they are subjected, which is reduced by the layer deposited through thermochemical treatment. ASTM A36 steel is used in welded and bolted steel structures for industrial and civil construction, as well as bridge construction. Due to the importance of its application, the purpose of the present investigation is the thermochemical treatment of sulfinized A36 steel probes, after being heated in a temperature range of 450 to 500ºC and subsequent cooling, these samples were subjected to a sales bath for 1.5 hours increasing the Rockwell C hardness value.