Stellite Alloy 3 Valve Seat (cobaltalloy)
Stellite 3 valve ball and seat are very important parts of underground oil-well pump , they always show up together and cooperate very good , no better material can replace Cobalt-chromium Alloy now .
The valve balls are made of Cobalt-chromium Alloy 20 and valve seat are made of Cobalt-chromium Alloy 3 . They are a good team to resist the wear and corrosion issue in oil and gas pimping process.
What is the Details of our stellite valve seat and ball?
| Material | Cobalt-chromium Alloy –Grade 3 and 20 |
| Process | Powder Metallurgy , it is short for PM |
| Hardness | 53-59HRC |
| Density | 8.6-8.8 g/cm ³ |
| Size | Diameter 11-60 mm |
| Properties | Wear and corrosion resistance, high temperature resistance |
| Application | Oil well pump components , wear and corrosion resistance parts |
| Instructions | Drawing made upon cutomers request |
| Usage | One balls with one valve |
| Tolerance control | Turning or grinding surface , tolerance upon drawing |
| Production lead time | Samples 10 days , normal order 30 days |
| Production capacity | 40,000pcs one month. |
| Package | Carton or wooden case , pallet for export |
Chemical composition
| 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 | |
| Cobalt-chromium 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 |
Production Process—Powder metallurgy
Mixing powder – Pressing – sintering – machining
We guarantee the balls roundness and accuracy, also the tightness of ball and seat.
Our service:
1.Supply Cobalt-chromium Alloy parts upon customer drawing and request
2.Free samples could be provided for testing
3.Both big quantity and small quantity are acceptable , Order flexible. click cobaltalloy.net for further information.