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Home> Products> Other Chemicals > S-2 Rockbit Tool Steel Shock Resisting Balls of All Size

S-2 Rockbit Tool Steel Shock Resisting Balls of All Size

FOB Price: 
Minimum Order Quantity:500/kg
Supply Ability:2000 Metric Ton/Year
Payment Terms:L/C,T/T,
Updatetime:Feb 12 2018
Company Profile
Contact:amy zhang
Address: ***Invalid.***
Website: ***Invalid.***
Packaging & Delivery
Packaging Detail:
Delivery Detail:
Detailed Description


Luoyang Yusion Industrial Co.,Ltd,founded in 1993, is specialized in producing AISI 52100 Chrome Steel Balls & AISI S-2 Rockbit Balls from 3/16" to 150mm. The grade of our products ranges from G10 to G600 , which conform to ASTM/AISI and international standard like ISO, JIS & DIN. We can also manufacture steel balls according to customer's detailed technical requirements. Moreover, our balls have passed ISO 9001:2000, SGS and D&B quality system certification.

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.
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.


Size 3/16"-6′
Hardness HRC60-HRC66
Diamenter 4.7625mm-150mm
Grade G10-G600
International Standard ASTM/AISI/JIS/DIN


Material AISI Military   ASTM UNS  AMS DIN JIS/SUJ
S-2 Tool Steel  S-2          A-681 T-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
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
Sulphur 0.030% maximum
Vanadium 0.5% maximum

Hardness as measured on parallel flat surfaces is Rockwell "C"55-58.Ball of special hardness are available upon request.

Tensile strength 310,000 psi
Yield strength 290,000 psi
Elongation in two inches 7%
Reduction in area 25%
Modulus of elasticity 30,000,000 psi
Density 0.283 lbs./

Production process

1.Firstly we pack the balls in cartons.
One type inside has two cartons.
For each carton,  length: 22cm  width:17cm   height:10cm  
Another type inside has four cartons:
For each carton, length: 15cm  width:12cm   height:10cm   

2.Then, we pack our balls using wooden pallet in our export business :
1).Put the plastic paper in the pallet(waterproof).
 The size of wooden pallet: 860mmm  800mm  750mm
2).Put the ball carton into the pallet ,and fix the pallet.
3).Hooping the pallet tightly using the steel rods


About the outside carton:
For each carton,   length: 37cm  width:25cm   height:11cm   
Generally, if you don't want packing with our company's logo and name, we offer neutral packing.

Quality Control

Before packing, surface inspection will be made.
First, all the finished products will be visually inspected two times.     
After that, sample inspection is done each batch by visual inspection.
Last, sample inspection again is made by automatic checking and sorting machine.


ISO9001:2000 Quality Certificate
 Quqlity Inspection Equipment

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.

How to Inquire
When ordering balls, please specify the following:
1. Nominal ball diameter.
2. Type of material.
3. Precision grade.
All standard balls are always in stock and ready for immediate off-the-shelf delivery. If your application calls for custom balls, send us your specifications and we'll gladly meet them
we will provide customers with quality products, perfect service and fast delivery at competitive pricing! our products are very well known in more than European and other foreign countries. your cooperation and order are warmly welcome!
Company Information
Trade Category: Manufacturer
Registered Time: 1993
Registered Capital:
Legal Representative:
Employees: 51 - 100 People
Product/Service: AISI 52100 chrome steel ball & AISI S-2 Rockbit Balls
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