The production process is different. Ordinary steel grit is produced by smelting and casting, and has certain defects; Bearing steel grit is directly quenched and heat treated from bearing steel without any defects.
The metal elements are different. The metal elements contained in ordinary steel grit mainly include C, Mn, Si, S, and P; In addition to containing these elements, bearing steel grit also contains precious metal Cr, which enhances fatigue life and wear resistance.
The appearance is different. The surface of ordinary steel grit is formed by crushing cast steel pellets, with a circular arc shape; Bearing steel grit is directly crushed into grit by quenching bearing steel, with sharp edges and no circular arc shape.
Prices vary. The raw material price of bearing steel grit is higher than that of ordinary steel grit, resulting in bearing steel grit being more expensive than ordinary steel grit.
Efficiency varies. The efficiency of bearing steel grit is about 30% higher than that of ordinary steel grit.