| abstract |
The invention discloses a high-life bearing steel material and a processing method thereof. The high-life bearing steel material comprises the following components: 0.95-1.05wt% of C, 0.15-0.35wt% of Si, 0.25-0.45wt% of Mn , 1.40~1.60wt% Cr, 0.05~0.09wt% Ni, 0.02~0.05wt% Mo, ≦0.050wt% Al, 0.05~0.08wt% Cu, ≦0.010wt% P, ≦0.008wt % S, ≦0.0025wt% Ti, ≦0.0020wt% O, ≦0.040wt% As, ≦0.030wt% Sn, ≦0.0050wt% Sb, ≦0.0020wt% Pb, ≦0.0010wt% Ca, the balance is Fe. The high-life bearing steel material of the present invention can meet the following performance requirements: high elastic limit, tensile strength and contact fatigue strength; high hardenability and necessary hardenability to ensure high wear resistance; certain impact toughness; Good dimensional stability or tissue stability; chemical corrosion resistance; can effectively reduce material fatigue peeling, stuck, ferrule fracture, wear, rust and other phenomena. |