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National Standard for Cemented Carbide Balls

Date:2024-12-23Tags:cemented carbide ball supplier,high precision tungsten carbide ball,carbide ball manufacturer,carbid

Cemented carbide ball is a high temperature sintered alloy material composed of refractory metal WC and cementing metal Co or Ni. Its alloy has high hardness and good wear resistance. It is widely used in ball rolling body in bearing industry, rotary ball for fluid sealing, pump valve spool, one-way valve spool and valve seat of petroleum extracting machine, and many other military and civilian high tech fields.

Uses of Cemented Carbide Balls: Precision bearings, instruments, meters, pen making, sprayers, pumps, mechanical parts, sealing valves, brake pumps, punching and extruding holes, oil fields, hydrochloric acid laboratories, hardness measuring instruments, fishing gear, counterweights, decorative, finishing and other high end industries!

Index

Parameter Range

Hardness

90-93 HRA

Density

14.5-15.0 g/cm³

Compression Strength

≥3000 MPa

Surface Roughness

Ra 0.02-0.04μm (High Accuracy)

Size Precision Grade

G5 - G100

Working Temperature

-200°C ~ 500°C

Common Material

YG6,YG8,YG10,YG15,YG16,YG18,YG20...

Main Features

High hardness: The hardness of cemented carbide balls can reach 90-93 HRA, second only to diamond.

Wear resistance: Excellent anti-wear performance, suitable for high load and high wear conditions.

High density: The density is usually 14.5-15.0 g/cm³, heavier than steel balls.

Corrosion resistance: Excellent performance in corrosive environments such as acid and alkali.

High precision: Can reach G5-G100 precision grade with extremely smooth surface.

High temperature resistance: Good high temperature stability, can work in high temperature environment.

Field of Application

Rolling bearings: Carbide balls are used in high-precision bearings, adapted to high-load, high-speed running occasions.

Valves and seals: Used in high-pressure valves and seals in oil and gas, chemical industry, wear-resistant and corrosion-resistant.

Nozzles: Used in sandblasting, spraying equipment nozzles, with a long life and high wear resistance.

Measuring tools: Used as reference balls for high-precision measuring equipment to ensure the accuracy of measurement results.

Other high load applications: such as aerospace, mining machinery, medical equipment, military and other fields.

Tungsten carbide ball is usually used for high precision bearings, valves, nozzles and other parts in the industrial field. Its international standards mainly involve hardness, dimensional tolerances, surface roughness, compressive strength and other performance indicators.

Tolerance Grade and Technical Requirements

Grade

Variation in Diameter of the Ball

The Spherical Deviation

Course Surface Roughness

Batch Diameter Variation

Basic Diameter Tolerance

Vdws

△Sph

Ra

Vdwl

Tdn

Not Exceeding

um

10

0.25

0.25

0.025

0.5

*

16

0.4

0.40

0.032

0.8

*

20

0.5

0.50

0.04

1

*

28

0.7

0.70

0.05

1.4

*

40

1.0

1.00

0.08

2

*

60

1.5

1.50

0.10

3

*

100

2.5

2.50

0.125

5

±12.5

200

5

5

0.2

10

±25

500

13

13

*

25

±50

1000

25

25

*

50

±125

*Indicate no


Batch Diameter Variation and common gauge value and gauge value

Grade

Batch straight though the amount of change

Straight spacing

Commonly used gauge

Sub-standard value

Sub-standard value

um

10

0.5

1

-9,…,-1,0,+1,…,+9

0.2

-0.4,-0.2,0,+0.2,+0.4

16

0.8

2

-10,…,-2,0,+2,…,+10

0.4

-0.8,-0.4,0,+0.4,+0.8

20

1

2

-10,…,-2,0,+2,…,+10

0.4

-0.8,-0.4,0,+0.4,+0.8

28

1.1

2

-12,…,-2,0,+2,…,+12

0.4

-0.8,-0.4,0,+0.4,+0.8

40

2

4

-16,…,-4,0,+4,…,+16

0.8

-1.6,-0.8,0,+0.8,+1.6

60

3

5

-20,…,-5,0,+5,…,+20

1

-2,-1,0,+1,+2

Hunan Jetvision Industrial Co.Ltd is one of the leading Tungsten carbide manufacturers and suppliers with over 20years experience of tungsten carbide products production and technology, It’s a professional supplier which provide kinds of tungsten carbide products, such as tungsten carbide ball, cemented carbide wire drawing dies, tungsten carbide seal rings, tungsten carbide plate, tungsten carbide bushing, carbide tube, cemented carbide rod, tungsten carbide button, carbide mining inserts, carbide blade, tungsten carbide strip, carbide dies, carbide brazed tips, tungsten carbide no standard products, carbide studs, tungsten carbide customized components which are widely used in machinery, mining, construction, oil and drill, industrial engineering etc.

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