Tungsten carbide is an important raw material in valve seat. Valve seat is wearing part. The important point is: it in the pipe. The medium will crushing the inner place. If the valve seat were not maintained properly, it would get rusty as time passes. Tungsten carbide features: High hardness, corrosion and wear resistance etc. It’s high hardness and wear resistance to ensure valve seat guarantee quality. The advantage is tungsten carbide is washing-out resistance. When the liquid into valve, it will washing-out valve seat. The raw material is more important. When parts or machine rubbing against each other, we always using tungsten carbide for valve seat raw material. This way is most quickly, easily way to solve work piece corrosion problem. It’s versatility and flexibility in various work piece. It’s mainly used in Oil, Gas industry and so on. After accurate grinding and polishing, the frictional factor of surface is very low. We accept customized service. If you have other specification, you can contact us.
Features of Tungsten Carbide Valve Core
1. 100% virgin raw materials.
2. Various kinds of grades are available based on customer's
application.
3. we have professional advanced production line and inspection,
equipment to ensure high quality products.
4. Precision Ground and high polishing process
5.
High wear resistance,high hardness and impact toughness
6. Advanced technology , precise grinding.
Grade List
Chinese Grade |
Equal to ISO Category Number |
Chemical composition |
Physical mechanical properties |
Application |
||||
WC |
Co |
Density |
Bend Strength |
Hardness |
||||
% |
% |
g/Cm3 |
N/mm2 |
HRA |
||||
YG3 |
K01 |
96.5-97 |
3 |
14.9-15.3 |
≥1180 |
≥91.0 |
It is suitable for the finishing of cast iron, non-ferrous metals, alloys and non-metallic materials, and semi-finishing vehicles for intermittent cutting. |
|
YG6X |
K10 |
93.5 |
6 |
14.8-15.1 |
≥1420 |
≥92 |
Finishing of chilled hard alloy cast iron and heat resistant alloy steel and ordinary cast iron |
|
YG6 |
K20 |
94 |
6 |
14.7-15.1 |
≥1600 |
≥91 |
Cast iron, non-ferrous metals and alloys, non-metallic materials, medium to cutting, semi-finishing and finishing. |
|
YG8 |
K20-K30 |
92 |
8 |
14.5-14.9 |
≥1600 |
≥90 |
Suitable for casting of cast iron, non-ferrous metals and their alloys and non-metallic materials. |
|
YG10 |
K40 |
90 |
10 |
14.3-14.7 |
≥1900 |
≥89 |
It is used for large batch production and has excellent strength and toughness. |
|
YG15 |
K30 |
85 |
15 |
13.9-14.2 |
≥2100 |
≥87 |
Forging, perforating and stamping tools for steel bars and steel tubes with high compression ratios and working under large stresses |
|
YG20 |
K30 |
80 |
20 |
13.4-13.7 |
≥2500 |
≥85.5 |
Stamping die, stamping watch parts, musical instrument spring piece; |
|
YG30 |
|
70 |
30 |
12.75 |
≥2500 |
≥82.8 |
High toughness |
Specification:
Type |
VII-106 |
VII-125 |
VII-150 |
VII-175 |
VII-200 |
VII-225 |
VII-250 |
VII-375 |
Ball-D +0.51/-0.25 |
15.88 |
19.05 |
23.83 |
28.58 |
31.75 |
34.93 |
42.88 |
57.15 |
Seat-ID ±1.27 |
11.68 |
13.97 |
17.02 |
20.96 |
24.38 |
26.92 |
33.27 |
43.18 |
Seat-OD +0.00/-0.13 |
20.14 |
23.32 |
29.67 |
35.26 |
37.54 |
43.69 |
51.05 |
78.03 |
Seat-H +0.51/-0.25 |
12.7 |
12.7 |
12.7 |
12.7 |
12.7 |
12.7 |
12.7 |
19.05 |