*2.6. HARDOX 400 Steel Sheet*

HARDOX type steels are defined as "high-quality abrasion-resistant steels". This group of materials is derived from low-alloy steels destined for heat treatment and belongs to a new generation of machinable and weldable structural steels. Materials made of HARDOX steel are used where resistance to abrasion is required such as in the presence of variable loads, e.g., feeders, crushers, sieves, shafts, elements of incline lift, conveyors, blades, gears and chains, dumpers, loaders, trucks, motor-carriages, dozers, loading buckets, and screw conveyors. All types of HARDOX steel are delivered in the hardened condition (water-hardened). In the case of specifically required hardnesses, tempering is also performed. These steels can be bent, cut, drilled, machined, or turned under strictly defined conditions. HARDOX sheets can be machined using high-speed steel (HSS) or tools made of sintered carbides. The chemical composition and properties of HARDOX 400 steel are given in Table 6.


**Table 6.** Chemical composition and mechanical properties of HARDOX 400.
