Product Description S-2 TOOL Steel BALLS (ROCKBIT) S-2 Tool Steel balls are designed to achieve extreme ruggedness.The ball surface has a smooth ground and polished finish.These balls provide the toughness and strength necessary for severe shock loads.S-2 Tool Steel balls are hardened throughout and have unusually good wear characteristics. Applications: S-2 Tool Steel balls find most frequent use in oil field equipment and offshore drilling operations.They provide good service in withstanding the abrasio of pulverized rock and mud slurries. Material AISI Military ASTMUN S AMSDINJIS/SUJ S-2 Tool steelS-2A-681T-41902 Additional testing may be required to certify that materials comply with specific standards. Material Analysis S-2 Tool Steel (Rockbit) balls are manufactured to the following chemical analysis: Chemical Analysis Carbon 0.47% to 0.55% Manganese 0.30% to 0.50% Silicon 0.90% to 01.10% Molybdenum 0.30% to 0.60% Phosphorus 0.030% maximum Parking Type 1 : Plastic bag + box + carton + wooden pallet Type 2 : Plastic bag + carton + wooden pallet Type 3 : Our package :export cartons, steel drums, wooden pallets About the outside carton: Generally, if you don't want packing with our company's logo and name, we offer neutral packing. Services 1. All the inquiries will be reply within 24 hours 2. For the steel ball, please kindly let us know the size, material, grade and quantity. 3. For the bearing, please kindly let us know bearing type, material, Accuracy Grade/Class, and quantity. Any futher query, please do contact us anytime.