The fact is that ARJES shafts are made of Creusabro wear-resistant steel. The uniqueness of this brand lies in the fact that steel is hardened during operation. Such characteristics are achieved due to the uniform dispersion of microcarbides of chromium, molybdenum and titanium carbides.
New grinding elements have hardness of 200BHN, but when in use, their hardness rises to 600BHN. This ability to strain hardening increases the service life of parts made of this steel. In this case, the subsurface layer, which has not undergone strain hardening, retains high ductility and excellent impact resistance.