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Steel Ball, S-2 Tool Steel Ball, AISI S-2 Rockbit Balls manufacturer / supplier in China, offering China S-2 Tool (Rockbit) Balls with Dongbei Special Steel Raw Material, 3/16"-6′ China Factory Yusion Free Samples52100 Bearing Ball, Low Price Chrome Steel Ball for Bearing G10-G600 and so on.

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Supplier Homepage Product AISI S-2 Tool(Rockbit) Ball China S-2 Tool (Rockbit) Balls with Dongbei Special Steel Raw Material

China S-2 Tool (Rockbit) Balls with Dongbei Special Steel Raw Material

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
  • Trademark: Yusion
  • Specification: ISO 9001
  • HS Code: 84829100
  • Customized: Customized
  • Standard Parts: Yes
  • Type: Ball
  • Size: 3/16"~6"
  • Grade: G10-G600
  • International Standard: ASTM/AISI/JIS/DIN
  • Transport Package: Paper Cartons Wrapped by Fumigation Wooden Pallet
  • Origin: Luoyang City, Henan Province
Product Description

S-2 Tool Steel Balls are hardened throughout and have unusually good wear characteristics. These balls are intended for applications that require extreme toughness and strength. They provide good service in withstanding the abrasion, high shock resistance, severe pressure impact, etc.

We manufacture a complete line of Rockbit balls in various diameters. Rockbit Balls are designed for extreme ruggedness. The balls are made from S-2 tool steel and specially heat treated to provide excellent hardness and wear resistance combined with toughness and impact resistance to survive extreme shock loads found in the drilling industry.

China S-2 Tool (Rockbit) Balls with Dongbei Special Steel Raw Material

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

China S-2 Tool (Rockbit) Balls with Dongbei Special Steel Raw Material

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.

China S-2 Tool (Rockbit) Balls with Dongbei Special Steel Raw Material

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