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Wear resistance is brought about by the high work-hardening capabilities of these steels; this in turn is generated during the pounding (i.e., deforming) of the surface, when a large number of disturbances are created in the lattices of their crystals that effectively block the flow of dislocations.
The benefit of using an abrasion resistant steel is that the plant, machinery or constructions working life can be extended considerably. This can significantly improve the reliability, durability and safety of structures and equipment. It also helps to reduce the maintenance costs associated with wear and breakdown of plant.
The steel is quenched which provides wear resistance; in order to improve hardness it may also be tempered. Wear resistant steels’ generally provide good cold bending properties and good weldability. Weldability is not generally reduced as the hardness increases.
Wear resistant steels are not appropriate for use at temperatures over 250 degree C as the heat can cause changes to the material properties.
