Wear Resistance Ball API Cobalt Chrome Non Ferrous Alloys
Cobalt Chrome Alloy Seat And Ball
Cobalt Chrome Alloy Seat And Ball are designed and manufactured according to API 11AX Specification for Subsurface Sucker Rod Pumps and Fittings(current edition). Each ball-and-seat combination is vacuum tested to ensure a perfect seal is obtained in all positions of contact
| Feasures |
1. High temperature resistance
The strength keeps stable up to 800℃ and it can even momentarily used at 1200℃.
2. Wear resistance
Due mainly to the unique inherent characteristics of the hard carbide phase dispersed in a
CoCr alloy matrix, it has exceptional wear and galling resistance.
3. Corrosion resistance
This exellent and lovely property allows this kind of material parts to be used in oil&gas, slurry, acid liquid and any other mediums.
4..We use Precision Cast Process to produce the Co alloy parts;
Cobalt Chrome Alloy Seat And Ball Chemical Composition:
| Composition (%) | C | Si | Mn | Cr | Ni | S | P | Mo | W | Fe | Co |
|
Stellite 20 (Balls) |
2.30-2.65 | ≤1.0 | ≤1.0 | 31.0-34.0 | ≤2.5 | ≤0.04 | ≤0.04 | ≤1.0 | 16.0-18.0 | ≤2.5 | Bal. |
|
CoCr Alloy (Seats) |
2.20-2.50 | ≤1.0 | ≤1.0 | 29.0-34.0 | ≤3.0 | ≤0.04 | ≤0.04 | ≤1.0 | 11.0-14.0 | ≤2.5 | Bal. |
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