• Tungsten Carbide Ball and Seat API Standards
  • Tungsten Carbide Ball and Seat API Standards
  • Tungsten Carbide Ball and Seat API Standards
  • Tungsten Carbide Ball and Seat API Standards
  • Tungsten Carbide Ball and Seat API Standards
  • Tungsten Carbide Ball and Seat API Standards

Tungsten Carbide Ball and Seat API Standards

Tungsten carbide ball & seat, made from virgin raw materials, have high hardness, wear-resistance, corrosion resistance, and resistance to bending. We are able to supply Carbide Balls in various desired material specifications including TC Cobalt, TC Nickel and TC Titanium, and the TC Balls are manufactured as per ISO and Anti-Friction Bearing Manufacturer Association (AFMBA) standards.

Blank balls and finished balls can be both supplied. Standard and non-standard balls are available. 

 Features

-- 91HRA or above
-- High dimension precision
-- API standards or OEM sizes
-- 100% Virgin pure Raw materials
-- Certificate of origin available
-- 7days 24 hours after-sale service

 Common shape and size see below:

 Recommend grades and specifications:

Grade Binder (Wt %) Density (g/cm3) Hardness (HRA) TRS (≥N/mm²)
YG6 6 14.9 90.5 2100
YG8 8 14.7 89.0 2250
YG11 11 14.5 88.5 2600
YG13 13 14.2 87.5 2650
YG15 15 14.0 87.0 2750
YG20 20 13.5 85.5 2850
Grade Allowable Ball Diameter Variation Deviation From Spherical Form Surface Roughness Arithmetical Average Basic Diameter Tolerance Allowable Lot Diameter Variation
3 3 µ" 3 µ" .5µ" ±30 µ" 5 µ"
  .000003" .000003" .0000005" ±.00003" .000005"
5 5 µ" 5 µ" .8 µ" ±50 µ" 10 µ"
  .000005" .000005" .0000008" ±.00005" .00001"
10 10 µ" 10 µ" 1.0 µ" ±100 µ" 20 µ"
  .00001" .00001" .000001" ±.0001" .00002"
15 15 µ" 15 µ" 1.0 µ" ±100 µ" 30 µ"
  .000015" .000015" .000001" ±.0001" .00003"
16 16 µ" 16 µ" 1.0 µ" ±100 µ" 32 µ"
  .000016" .000016" .000001" ±.0001" .000032"
24 24 µ" 24 µ" 2.0 µ" ±100 µ" 48 µ"
  .000024" .000024" .000002" ±.0001" .000048"
25 25 µ" 25 µ" 2.0 µ" ±100 µ" 50 µ"
  .000025" .000025" .000002" ±.0001" .00005"
48 48 µ" 48 µ" 3.0 µ" ±200 µ" 96 µ"
  .000048" .000048" .000003" ±.0002" .000096"
50 50 µ" 50 µ" 3.0 µ" ±300 µ" 100 µ"
  .00005" .00005" .000003" ±.0003" .0001"
100 100 µ" 100 µ" 5.0 µ" ±500 µ" 200 µ"
  .0001" .0001" .000005" ±.0005" .0002"
200 200 µ" 200 µ" 8.0 µ" ±1000 µ" 400 µ"
  .0002" .0002" .000008" ±.001" .0004"
300 300 µ" 300 µ"   ±1000 µ" 400 µ"
  .0003" .0003"   ±.001" .0004"
500 500 µ" 500 µ"   ±2000 µ" 1000 µ"
  .0005" .0005"   ±.002" .001"
1000 1000 µ" 1000 µ"   ±5000 µ" 2000 µ"
  .001" .001"   ±.005" .002"
2000 2000 µ" 2000 µ"   ±5000 µ" 4000 µ"
  .002" .002"   ±.005" .004"
3000 3000 µ" 3000 µ"   ±5000 µ" 6000 µ"
  .003" .003"   ±.005" .006"

 Application

Tungsten carbide balls and seats are widely used in oil&gas industry, bearings, ball screws, valves and flow meters. ballpen, spraying machines, pump, machinery parts and other related industries.

Related Products

As a professional tungsten carbide manufacturer from China, with more than 20 years’ experience, we have skilled engineers and technical know-how, to meet any of your carbide request.

Contact Details


MAIL US ATarris@zzhthj.com
CALL US ON:+86 731 28487117
ADDRESS:No.86,Mingri Rd,Tianyuan Dist,Zhuzhou,Hunan,China 412007