Wear Parts . Rollers and Table Segments: Both are cast in High Chrome Alloys in the range of 16% to 27 % with a 5562 HRC hardness. The use of High Chrome increases the wear life versus low and medium chrome alloys. We are able to send to your plant site engineers and sales staff to reengineer and/or draft your vertical mill wear parts in the case that we have not had developed your mill ...