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cobalt alloy Balls and Seats Price, API Cobalt Based Alloy V11-225 Cobalt Valve Ball EB008
1. Product Name:Valve Balls and Seats
2. Material Grade:API V11-225
3. Size:Balls φ28.58mm,V11-225 Seat
4. Hardness:G100 HRC 52-60
5. Process:Cast Process
6. Standard:
| Type | Fluid, mm2 | Dw, mm | D, mm | d mm | H, mm |
| V11-106 | 107 | 15.8750 | 20.142 | 11.68 | 12.70 |
| V11-125 | 153 | 19.0500 | 23.317 | 13.97 | 12.70 |
| V11-150 | 227 | 23.8125 | 29.667 | 17.02 | 12.70 |
| V11-175 | 345 | 28.5750 | 35.255 | 20.96 | 12.70 |
| V11-225 | 569 | 34.9250 | 43.688 | 26.92 | 12.70 |
| V11-250 | 869 | 42.8625 | 51.054 | 33.27 | 12.70 |
| V11-375 | 1623 | 57.1500 | 78.029 | 45.47 | 19,05 |
7. Chemical Composition:
| Composition (%) | C | Si | Mn | Cr | Ni | S | P | Mo | W | Fe | Co |
| cobalt alloy 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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