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Steel Ball, S-2 Tool Steel Ball, AISI S-2 Rockbit Balls manufacturer / supplier in China, offering 4.7625mm-150mm Steel Ball Supplier, Chrome / Carbon / S-2 Rockbit Ball Manufacturer, Rock Bit AISI S-2 Tool Steel Balls for Mud Lubricated Bearing Assemblies/Oil Screw Drilling Bearing/Bearings for Downhole Motors, High Polished Chrome Steel Ball for Deep Groove Ball Bearing and so on.

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Supplier Homepage Product AISI S-2 Tool(Rockbit) Ball 4.7625mm-150mm Steel Ball Supplier, Chrome / Carbon / S-2 Rockbit Ball Manufacturer

4.7625mm-150mm Steel Ball Supplier, Chrome / Carbon / S-2 Rockbit Ball Manufacturer

FOB Price: US $0.001-0.003 / piece
Min. Order: 1 piece
Min. Order FOB Price
1 piece US $0.001-0.003/ piece
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Port: Tianjin, China
Production Capacity: 2000 Tons/Year
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: 3/16"~6"(4.7625mm~150mm)
  • Certification: ISO
  • Universal: Yes
  • Material: Bearing Steel
  • Diamenter: 4.7625mm~150mm
  • Hardness: HRC55~HRC60
  • Color: Metal,Mirror
  • Transport Package: Paper Cartons Wrapped by Fumigation Wooden Pallet
  • Origin: Luoyang City, Henan Province
  • Customized: Customized
  • Standard Parts: Yes
  • Type: Ball
  • Size: 3/16"~6"
  • Grade: G10-G600
  • International Standard: ASTM/AISI/JIS/DIN
  • Trademark: Yusion
  • Specification: ISO 9001
  • HS Code: 84829100
Product Description
AISI 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.

S-2 Tool Steel Balls find most frequent use in oil field equipment and offshore drilling operations.They provide good service in withstanding the abrasion of pulverized rock and mud slurries.

S-2 Tool Steel S-2         A-681T-41902  
Additional testing may be required to certify that materials comply with specific standards.
S-2 Tool Steel (Rockbit) Balls are manufactured to the following chemical analysis:
Chemical Analysis
Carbon0.47% to 0.55%
Manganese0.30% to 0.50%
Silicon0.90% to 01.10%
Molybdenum0.30% to 0.60%
Phosphorus0.030% maximum
Sulphur0.030% maximum
Vanadium0.5% maximum
Hardness as measured on parallel flat surfaces is Rockwell "C"55-58.Ball of special hardness are available upon request.
Tensile strength
Yield strength
310,000 psi
290,000 psi
Elongation in two inches7%
Reduction in area25%
Modulus of elasticity
30,000,000 psi
0.283 lbs./
GradeSize Range in Inches and Millimeters
50-2003/16"-6"  4.7625mm-150mm

1. Professional manufacturer of steel balls since 1993;
2. The leading domestic facility which can supply high precision steel balls with complete specifications;
3. Non-standard products can be customized;
4. An integrated set of industry and trade company,professional at before-after sales service;
5. Supplying quality product at the best value;
6. Certified by ISO 9001:2000,SGS and D&B quality system certification;
7. Strict quality control system,100% inspection;
8. Adequate inventory,on time delivery;
9. All inquiries and messages will be replied within 24 hours;
10. Free samples can be offered.

Firstly we pack the balls in cartons.
For each carton,the size is : 160mm x120mm x65mmm
Then, we pack our balls using wooden pallet(fumigation) in our export business :
Put the plastic paper in the pallet(waterproof) at first, then put the ball carton into the pallet ,and fix the pallet.
The size of wooden pallet: Length:1050mmx850mmx420mm
Generally, if you don't want packing with our company's logo & name and our package, we offer neutral packing and can according to your requirements.

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