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Tungsten Carbide Seats
Application
For sealing of valves of oil pumps in petroleum industry's sand containing wells, viscous oil wells, sea oil wells, high pressure sulfur resistant oil wells, compatible Cemented Carbide valve seats, etc.
Various grades for tungsten shot/pellets can be supplied according to customer's drawings. 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.
Grade List
| Grade | ISO Code | Chemical Composition(%) | Physical Mechanical Properties (≥) | Application | ||||
| WC | Co | Density g/cm3 | Hardness(HRA) | T.R.S N/mm2 | ||||
| YG3 | K01 | 97 | 3 | 14.90 | 91.00 | 1180 | Suitable for finishing of cast iron,non-ferrous metals,alloys and non-metallic materials,and semi-finishing vehicles for intermittent cutting. | |
| YG6 | K10 | 94 | 6 | 15.10 | 92.00 | 1420 | Finishing of chilled hard alloy cast iron and heat resistant alloy steel and ordinary cast iron. | |
| YG6X | K20 | 94 | 6 | 15.10 | 91.00 | 1600 | Cast iron, non-ferrous metals and alloys, non-metallic materials, medium to cutting, semi-finishing and finishing. | |
| YG8 | K20-K30 | 92 | 8 | 14.90 | 90.00 | 1600 | Suitable for casting of cast iron, non-ferrous metals and their alloys and non-metallic materials, roughing of sections and rough cutting. | |
| YG10 | K40 | 90 | 10 | 14.70 | 89.00 | 1900 | Suitable for the production of drawing dies, wear parts and stamping parts and cores for hard alloy automatic presses. | |
| YG10X | K40 | 89 | 10 | 14.70 | 89.50 | 2200 | Suitable for small diameter micro drills, end mills, rotary boring tools, etc. | |
| YG15 | K30 | 85 | 15 | 14.70 | 87.00 | 2100 | Forging, perforating and stamping tools for steel bars and steel tubes with high compression ratios and working under large stresses. | |
| YG20 | K30 | 80 | 20 | 13.70 | 85.50 | 2500 | Stamping die, stamping watch parts, musical instrument spring piece. | |
| YG20C | K40 | 80 | 20 | 13.70 | 82.00 | 2200 | punching battery case, toothpaste skin mold, small size steel ball, screw, nut stamping die, hot rolling twist drill bit plate. | |
| YG30 | G60 | 70 | 30 | 12.80 | 82.00 | 2750 | Production of standard parts, bearings, tools and other industries for cold heading, cold punching, cold pressing die. | |
Grade and applicaton for valve seat
| Grade | Co (wt%) | Density (g/cm³) | Hardness(HRA) | TRS (≥N/mm²) | Application |
| XC100 | 5.8-6.2 | 14.6-15.0 | 91.5-92.5 | 2000 | Wear-resistant |
| XC101 | 5.8-6.2 | 14.6-15.0 | 91.5-92.5 | 2500 | |
| XC200 | 7.8-8.2 | 14.5-14.9 | 91.0-92.0 | 2100 | |
| XC201 | 7.8-8.2 | 13.5-14.9 | 91.0-92.0 | 2800 | |
| XC300 | 9.8-10.3 | 14.2-14.6 | 90.5-91.5 | 2600 | |
| XC301 | 9.8-10.3 | 14.2-14.6 | 90.5-91.5 | 3200 | |
| Grade | Ni (wt%) | Density (g/cm³) | Hardness (HRA) | TRS (≥N/mm²) | Application |
| XN100 | 6.5-7.5 | 14.5-14.8 | 88.5-91.0 | 1800 | Corrosion-resistant |
| XN101 | 6.5-7.5 | 14.5-14.8 | 88.5-91.0 | 2200 | |
| XN300 | 10.0-11.0 | 14.2-14.6 | 86.5-89.5 | 2100 | |
| XN301 | 10.0-11.0 | 14.2-14.6 | 86.5-89.5 | 2400 |
| Seats dimension (mm) | ||
| D | d | H |
| 19.48 | 11.68 | 12.7 |
| 22.66 | 13.97 | 12.7 |
| 28.22 | 17.02 | 12.7 |
| 33.81 | 20.96 | 12.7 |
| 36.09 | 24.38 | 12.7 |
| 41.43 | 26.92 | 12.7 |
| 48.79 | 33.27 | 12.7 |
| 74.93 | 43.18 | 19.05 |
Standard
1. High Precission in Shape;
2. Strong corrosion resistance
3. Excellent mechanical property
4. Materials: Stainless Steel, Tungsten Carbide, Titanium Carbide, Cobalt Alloy
Features
1. High wear resistance grade
2. Precise control on dimension
3. Last longer due to its special properties to suit application
The valve balls and valve seats are main components and parts of the sucker rod pump.
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