Economical high-abrasion-resistance steel ball and manufacturing method thereof

The invention relates to a low-cost economical high-abrasion-resistance steel ball and a manufacturing method thereof. The low-cost economical high-abrasion-resistance steel ball comprises the following chemical components, by mass percentage, 0.95-1.10% of C, 0.10-0.25% of Si, 0.85-1.00% of Mn, being less than or equal to 0.030% of P, being less than or equal to 0.030% of S, 0.35-0.70% of Cr, 0.008-0.020% of Ti, and the balance Fe and inevitable impurity elements. Round steel bars for rolling steel balls are obtained through smelting, continuous casting, continuous casting billet heating, round steel bar rolling and air cooling, then the round steel bars are heated to 970-1100 DEG C, heat preservation and thorough burning are conducted, then the round steel bars are rolled into the steel balls on a ball rolling machine, then the steel balls with waste heat are subjected to water cooling quenching, the steel balls are tempered after quenching, the tempering temperature is 160-200 DEG C, and the heat preservat