We are widely acclaimed for offering Rockbit Steel Balls that are designed to work well in extreme conditions and commonly used for drilling deep into the ground. The Rockbit Steel Balls we provide possess the strength and toughness that is required to withstand heavy force and the abrasion of pulverized rock. Our Rockbit Steel Balls also have unusually good wear characteristics due to the materials hardening capabilities.

Used In

  • Well drilling
  • Oil field drilling and equipment and offshore drilling platforms



AISI Type S-2 Rockbit Steel Balls
Size Range ¼” (0.25) thru 1 ½” (1.50)
Grades 100, 200
Chemical Compositions
Carbon 0.45% to 0.55%
Manganese 0.30% to 0.50%
Molybdenum 0.30% to 0.60%
Silicon 0.90% to 1.10%
Phosphorous 0.030% Max.
Sulphur 0.030% Max.
Vanadium 0.050% Max.
Mechanical Properties
Tensile Strength 310,000 psi
Yield Strength 290,000 psi
Elongation in 2 Inches 7%
Reduction in Area 25%
Modulus in ElastIcity 30,000,000 psi
Density 0.283 lbs/cubic inch
Physical Characteristics Extreme Wear Resistance
Hardness 54-60 Rockwell C
General Usage
Well Drilling, Oil Drilling