Stellite 190 Welding Hardfacing Rod Cobalt Based Alloy Gouge Type Bearing Sleeve Drill Head
Stellite 190 Welding Rod - Cobalt Based Alloy Hard Facing Rod Gouge Type Bearing Sleeve Drill Head
Product Description
Cobalt 190 is a highly abrasion-resistant alloy, primarily used for the hardfacing of bearing journals in tricone rotary rock bits used in the Oil and Gas Industry. Tricone bits operate in hot and extremely abrasive downhole conditions. Due to the high proportion of carbides, which provide the abrasion resistance, care must be taken to minimize cooling stresses incurred during hardfacing and to avoid service conditions which involve severe mechanical or thermal shock.
Common Names: Stellite 190 Polystel 190
Standard: AWS 5.21-2001 Mil-R-17131C ERCoCr-G Mil-CoCr-G
Chemical Composition(%)
|
C |
Si |
Mn |
Mo |
Cr |
W |
Ni |
Fe |
Co |
|
3.2 |
1.00 |
≤1.00 |
≤1.00 |
26.00 |
14 |
≤1.00 |
≤3.00 |
Rest |
Characterisitic
|
Abrasion Resistance |
Excellent |
|
Impact Resistance |
Moderate |
|
Corrosion Resistance |
Good |
|
Hardness |
HRC 54-60 |
|
Deposit Layers |
2 Max |
|
Deposit Cross Checks |
* Possible |
|
Magnetic |
No |
|
Hot Wear Hardness |
Excellent |
|
Machineability |
Diffcult |
Packing Details
For length 350mm 500mm pack in carton each 5kg
For 1000mm packing in 5kg tube, 4 tubes in one 20kg carton
For length more than 1000mm, pack in wooden box directly
Applications
Used to make rotating sealing ring, gouge type bearing sleeve, drill head, etc
Hydro pulper disc
Oil drilling tools
Mixer seals and rotors
Type We Could Offer
| Trademark | Nominal Chemical Composition | HRC | Application | |||||||||
| C | Cr | Si | W | Ni | Fe | Mn | Mo | Co | B | |||
| WL Co1 | 2.45 | 30.0 | 1.0 | 13.0 | ≤3.0 | ≤3.0 | ≤1.0 | ≤1.0 | Bal. | 50-58 | Valve seat insets, bearing, sawteeth, rotary ring, Pump Sleeves | |
| WL Co3 | 2.4 | 30.5 | 1.0 | 13.0 | ≤3.0 | ≤3.0 | ≤1.0 | ≤1.0 | Bal. | 50-56 | Valve seat insets,steel mill guide roll, wearing panel of cracker blade, etc. | |
| WL Co4 | 1.0 | 31.0 | 1.0 | 14.0 | ≤3.0 | ≤1.0 | ≤0.5 | ≤0.5 | Bal. | 45-50 | Hot extrusion die, dry battery industry | |
| WL Co6 | 1.2 | 29.0 | 1.0 | 4.5 | ≤3.0 | ≤3.0 | ≤1.0 | ≤1.0 | Bal. | 40-46 | Engine valve, high temperature valve, turbine blade | |
| WL Co12 | 1.4 | 30.0 | 1.3 | 8.5 | ≤3.0 | ≤3.0 | ≤1.0 | ≤1.0 | Bal. | 44-50 | Pressure valves, sawteeth screw fights | |
| WL Co20 | 2.5 | 32.0 | 1.0 | 17.0 | ≤3.0 | ≤3.0 | ≤0.5 | ≤1.0 | Bal. | 54-59 | Wear plate, bearing sleeve, etc. | |
| WL Co21 | 0.2 | 27.0 | 1.0 | 0.2 | ≤3.0 | ≤2 | ≤1.0 | ≤5.5 | Bal. | 20-40 | Fluid valve seat, turbine blades, hot forging die | |
| WL Co25 | 0.05 | 20.0 | 1.0 | 15.0 | 10.0 | ≤2.0 | ≤1.5 | ≤1.0 | Bal. | 24 | High temperature and corrosion-resistant valve sealing surface, pressure casting dies, etc. | |
| WL Co31 | 0.5 | 26.0 | 1.0 | 7.5 | 10.0 | ≤3.0 | ≤1.0 | ≤1.0 | Bal. | 30-35 | Extrusion die, steam turbine blade, etc. | |
| WL Co32 | 1.8 | 26.0 | 1.2 | 12.0 | 22.0 | ≤1.5 | ≤0.5 | ≤1.0 | Bal. | 40-45 | Engine inlet and exhaust valve | |
| WL Co190 | 3.2 | 26.0 | 1.0 | 14.0 | ≤1.0 | ≤3.0 | ≤1.0 | ≤1.0 | Bal. | 54-60 | Petroleum drill bit, mining industry | |
| WL CoT400 | 0.08 | 8.5 | 2.6 | 1.5 | ≤1.5 | ≤1.0 | 28 | Bal. | 0.8 | 50-60 | Valve and roller path, plastic extruder in strongly corrosive | |
| WL CoT800 | 0.08 | 18.0 | 3.4 | ≤1.5 | 1.5 | ≤1.0 | 28 | Bal. | 0.8 | 52-58 | Valve and roller path, plastic extruder in strongly corrosive | |
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