Vascowear, in not very tough, it have over 1% tungsten.
The ESR k360 have same propriety superior than A2 as plastic deformation chipping and cracking. Test is maked for steel (a2,k360 ) hardrned at 58HRC.
ESR mean
Electro Slag Remelted In Electro Slag Remelting the ingot is built up in a water cooled mould by melting a consumable electrode immersed in a superheated process slag. An electrical current flowing through the liquid slag, which provides the electrical resistance, generates the heat. As the slag temperature rises above the liquids temperature of the steel, the tip of the electrode melts. The reaction between slag and steel droplets results in a significant reduction in sulphur and non-metallic inclusions. The directional solidification of the ingot from bottom to top results in an ingot with a high homogeneity and freedom from macro - segregations. This gives uniform mechanical properties in the longitudinal and transverse directions after hot working. By utilizing homogenisation annealing of ingots, a high ingot break down and special heat treatment methods for structure refinement and strategy is fulfilled in optimising steel properties for an extended tool life.
(bohler)