Stellite 6 Polystel 6 Hardfacing Powder Cobalt Based Alloy Welding Powder Used For High Pressure Valve Sealing Surface
WL Co6 cobalt based powder is the most widely used of the cobalt alloys.
It is regarded as the industry standard for general-purpose wear resistance applications, has excellent resistance to many forms of mechanical and chemical degradation over a wide temperature range, and retains a reasonable level of hardness up to 500°C (930°F)
Common Names: Stellite 6, Polystel 6, Hoganas 2537
Standard: AWS 5.21-2001, ERCoCr-A
Chemical Composition(%)
| C | Si | Mn | Mo | Cr | W | Ni | Fe | Co |
| 1.15 | 1.00 | ≤1.00 | ≤1.00 | 29.00 | 4.5 | ≤3.00. | ≤3.00 | Rest |
Characterisitic
| AWS / ASME: A5.21 / SFA5.21 ERCoCr-A | |
| Abrasion Resistance | Good |
| Impact Resistance | Good |
| Corrosion Resistance | Good |
| Hardness | HRC 40-46 |
| Deposit Layers | 2 Max |
| Deposit Cross Checks | * Possible |
| Hot Wear Hardness | Good |
| Machineability | Carbide Tools |
Packing Details
Each bottle 5kg/bottles, 5 bottles pack in one carton,
then put cartons onto pallet or Box. OEM packing & label or customized packing methods available.
Applications
Used to make motor spiracle, high temperature and high pressure valve sealing surface
Bearing Areas
Extrusion Screws Flights
Tong Bits
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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