Grinding balls are delivered as-rolled or in the quenched and tempered condition. The standard grinding ball steel A810 is of the type 0.83% C, 0.8% Mn, 0.3% Cr.
Hardness in the quenched and tempered condition. The A 810 grinding balls maintain the same wear resistance from start to finish. Grinding balls in other steel grades can be supplied upon request.
Grinding rods are delivered in the as-rolled, straightened condition. The grinding rod steel is of the type 1.0% C 1.4% Cr. The dimension range is O 75–120 mm. The hardness range is 340–400 HBW.