English
русский
عربى
Cobalt-based alloy powder is a hard alloy powder that can resist various wear, corrosion, and oxidation at high-temperature. It contains a considerable proportion of Cr, and W, and a small amount of Ni, Mo, Si, C, Nb, Ta elements while the Co is the main ingredient. These cobalt alloy powders are used in overlayed welding, spray welding, which can also fabricate casting, and powder metallurgy components, such as high-temperature pressure valve, sawtooth, and helical rotor.
| Type | HRC | Chemistry（wt%） | Typical Application | |||||||||
| C | Cr | Si | W | Fe | Mo | Ni | Co | Mn | B | |||
| SD-Co01 | 48 | 2.4 | 30.5 | 1 | 12.5 | 3 | 1 | 3 | Bal | 0.25 | Valve seat inserts, bearing—cutter edge, etc. | |
| SD-Co03 | 48 | 2.3 | 30.5 | 1 | 12.5 | 3 | 2.5 | Bal | Needle holders, valve seat inserts, steel mill guide roll | |||
| SD-Co06 | 38 | 1.15 | 29 | 1.1 | 4 | 3 | 1 | 3 | Bal | 0.5 | Engine valve, high-pressure valve, and turbine blade | |
| SD-Co12 | 42 | 1.4 | 29.5 | 1.45 | 8.25 | 3 | 1 | 3 | Bal | 1 | High temperature and pressure valves, sawteeth screw flights, etc. | |
| SD-Co12B | 43 | 1.3 | 31 | 1 | 5 | 3 | 4 | 11 | Bal | 1 | Saw chain guides | |
| SD-Co12S | 52 | 2 | 30 | 1.5 | 9 | 1 | 1 | 2 | Bal | 1 | Valves, screws | |
| SD-Co20 | 52 | 2.45 | 32.5 | 1 | 17.5 | 3 | 1 | 3 | Bal | 0.5 | Bearing sleeve, wearing plate | |
| SD-Co21 | 28 | 0.25 | 27.5 | 2 | 0.15 | 2 | 5.5 | 2.5 | Bal | 1 | Turbine blades, fluid valve, valve seat | |
| SD-Co31 | 31 | 0.5 | 25.5 | 1 | 7.5 | 2 | 10.5 | Bal | 1 | Extrusion die, turbine impeller | ||
| SD-Co156 | 43 | 1.6 | 28 | 1.15 | 4.5 | 0.5 | 1 | 3 | Bal | 1 | High temperature and pressure valves, hot-forging die | |
| SD-Co157 | 50 | 0.1 | 22 | 1.6 | 4.5 | 3 | 0.3 | 3 | Bal | 0.3 | 2.4 | Top of motor car valve |
| SD-Co158 | 40 | 0.75 | 26 | 1.9 | 5.5 | 3 | 0.5 | 3 | Bal | 0.1 | 0.7 | High temperature and pressure valves, sawteeth screw flights, etc. |
| SD-Co158Q | 43 | 1 | 30 | 1.2 | 4 | 3 | 3 | 6 | Bal | 0.5 | 0.3 | Saw chain guides |
| SD-Co158V | 48 | 1 | 30 | 1 | 8 | 4 | 0.5 | 3 | Bal | 0.5 | 0.7 | Intake valves for internal combustion engines |
| SD-Co158W | 41 | 1.3 | 31 | 1.5 | 5.5 | 4.5 | 2 | Bal | 0.7 | Valve seat, high temeperature&press valves, etc. | ||
| SD-CoF | 37 | 1.75 | 25.5 | 1.1 | 12 | 3 | 0.6 | 22.5 | Bal | 0.5 | Engine inlet and exhaust valve | |
| SD-CoFH | 37 | 1.4 | 28 | 1.2 | 12 | 3 | 0.8 | 22 | Bal | 0.5 | Engine inlet and exhaust valve | |
| SD-CoX40 | 34 | 0.85 | 25 | 0.3 | 7.5 | 1 | 10 | Bal | 0.3 | Extrusion die turbine impeller | ||
| SD-Co400 | 53 | 0.08 | 8.5 | 2.6 | 1.5 | 28.5 | 1.5 | Bal | Wedge gate valves at elevated temeperature&corrosive environments, plastic extrusion liners | |||
| SD-Co800 | 53 | 0.08 | 18 | 3.4 | 1.5 | 28.5 | 1.5 | Bal | Wedge gate valves at elevated temeperature&corrosive environments, plastic extrusion liners | |||
| SD-Co900 | 0.08 | 18 | 2.7 | 2.5 | 23 | 16 | Bal | Valve, seat, sealing rings,hot-roll | ||||
| SD-CoSF6 | 41 | 0.7 | 19 | 2.3 | 7.5 | 3 | 13.5 | Bal | 1 | 1.7 | Engine valve, high temeperature&press valves | |
| SD-CoSF12 | 43 | 1 | 19 | 2.8 | 9 | 3 | 13 | Bal | 1 | 1.8 | High temperature and pressure valves, hot shears, etc. | |
| SD-Co706 | 40 | 1.1 | 29 | 2 | 2 | 5 | 2 | Bal | Engine valve, high temeperature&press valves | |||
| SD-Co712 | 47 | 1.9 | 29 | 2 | 2 | 8.5 | 2 | Bal | High temeperature&pres valves, screw flights | |||
