China Stellite 20 Wear and Corrosion Resistant Cobalt Chrome Tungsten Alloy API Valve Ball for Oil, Find details about China Cobalt, Stellite 20 from Stellite 20 Wear and Corrosion Resistant Cobalt Chrome Tungsten Alloy API Valve Ball for Oil
1.Product Name:Stellite 20 Valve Balls
2.Material Grade:Stellite 20
4.Process:Cast Process
5.What`s the Material of our Valve Seat ?
8..Chemical Composition:
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 |
Chemical Composition:
Composition (%) | C | Si | Mn | Cr | Ni | S | P | Mo | W | Fe | Co | Hardness |
Stellite 20 Balls | 2.30-3.00 | ≤1.5 | ≤1.0 | 31.0-36.0 | ≤3.0 | ≤0.04 | ≤0.04 | ≤1.0 | 16.0-19.5 | ≤3.0 | Bal. | HRC:52-60 |