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Carbide Balls & Seats

Precision machined tungsten carbide balls and valve seats

* High strength, high wear resistance, high precision, high temperature resistant, corrosion resistant. 
* They are mainly used for the sealing of valves of oil pumps in petroleum industry's sand containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc.
* They are used with compatible cemented carbide valve seats.
* The surface finish, tolerance class and tolerances of dimensions have respectively reached the standards of the machine industry: G5, G10, G16, G40 and G100 of JB/T 9145-1999.
* Precision machined cemented carbide balls of other grades and specifications are also available based on customers' demands.
* Compatible high precision valve seats can also be made available.

Carbide grade

Grade

Density(g/cm³)

Hardness(HRA)

TRS(MPa)

YG6X

14.95

91.5

1800

YG8

14.80

89.5

2200

YG11

14.40

87.0

2500

Many carbide grades can meet your requirements for precision machined cemented carbide balls in their good precision, good wear resistance and good corrosion resistance.
 
Type and specifications

Dia.
(D)

Inch

3/4

7/8

15/16

1

1 1/8

1 3/16

mm

19.050

22.225

23.813

25.400

28.575

30.163

Inch

1 1/4

1 3/8

1 1/2

1 5/8

1 11/16

1 3/4

mm

31.750

34.925

38.100

41.275

42.863

44.450

Inch

 

2

1 1/4

 

2 1/2

 

mm

50.000

50.800

57.150

60.000

63.500

 

 
              
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