Stellite Alloy 20 Ball and Stellite Alloy 3 Valve Seat are very important parts of underground oil-well pump , they always show up together and cooperate very good , no better material can replace Stellite Alloy now .
The valve balls are made of Stellite Alloy 20 and Stellite Alloy 3 Valve Seatare made of Stellite Alloy 3 . They are a good team to resist the wear and corrosion issue in oil and gas pimping process .
Chemical Composition of Stellite Alloy 3 and Stellite Alloy 20:
| Grade | C | Mn | Si | Cr | Ni | Mo | W | Co | Fe | P | S | Density
(g/cm³) |
Hardness
(HRC) |
| Stellite Alloy 3 | 2.0-2.7 | 1.0 | 1.0 | 29-33 | 3.0 | 11-14 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.55 | 51-55 | |
| Stellite Alloy 20 | 2.2-3.0 | 2.0 | 30-34 | 3.0 | 1.0 | 14-18 | Bal. | 3.0 | ≤0.05 | ≤0.05 | 8.65 | 53-59 |
As a professional stellite alloy manufacturer – cobaltalloy.net offer high-quality products for you. All products have been passed 12 inspection process, all aspects of production are record, which can be verified at any time. Finished products have real detailed inspection report, any division caused by the quality defects and problems, we will consult with customers , free return for change.
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