Abstract
Mechanical properties of steel 30KhGSA and new domestic steel B1700 specimens cut from agricultural equipment components after field trials are determined. A different wear mechanism is revealed for the steels: elastoplastic deformation with plastic repulsion of metal by soil particles and traces of microcutting of steel 30KhGSA chisels, adhesive-fatigue failure with traces of shallow pitting of a surface layer, and indentation of abrasive particles for a steel B1700 chisel. Use of the test steel makes it possible to increase soil tillage depth from 17–19 to 20–22 cm, which significantly increases the quality of agricultural operations or permits an increase in soil tillage rate.
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