Changzhou WL Allotech Material Co.,Ltd
Changzhou WL Allotech Material Co.,Ltd
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Stellite 6 Weartech WT-6 Welding Electrode - Cobalt Based Alloy Hard Facing Electrode High Temperature Valve
WL-Co6 is the most widely used of the wear resistant cobalt-based alloys and exhibits good all-round performance. 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). It also has good resistance to impact and cavitation erosion. WL-Co6 is ideally suited to a variety of hardfacing processes and can be turned with carbide tooling. Examples include valve seats and gates, pump shafts and bearings, erosion shields, and rolling couples. It is often used self-mated.
Common Names: Stellite 6, Polystel 6, Hoganas 2537
Standard:AWS / ASME: A5.13 / SFA5.13 ECoCr-A
Chemical Composition(%)
| Co | Cr | W | C | Ni | Mo | Others |
| Bal. | 27-32 | 4-6 | 0.9-1.4 | <3.0 | <1.0 | Fe, Si, Mn |
Physical Properties
| Hardness | Density | Melting Range |
| 36-45 HRC | 8.44 g/cm3 | 1285-1410 ºC |
Specification
| AWS / ASME: A5.13 / SFA5.13 ECoCr-A | |
| Metal to metal Wear | Excellent |
| Cold / Hot Abrasion | Good / Good |
| Erosion / Corrosion | Excellent / Excellent |
| Impact | Excellent |
| Magnetic | No |
| Deposit Layers | 2 Max |
| Thermal Conductivity | 14.82 W/m.K, 102.7 Btu-in/hr/ft2/°F |
| Electrical Resistivity | 106 μ-ohm.cm, 41.7 μ-ohm.inch |
Packing Details
For length 350mm 5kg per Vacuum Pack, 1 Vacpak inside a Carton
a carton 4 packs a total of 20kg, then put them in wooden boxes or trays.
Packaging details can also be customized according to customer requirements.
Applications
The most widely used Cobalt Alloy with good mechanical
properties at different temperatures, Recommended use
for making valve seat material, hot shear blade, high temperature valve , turbine blade ,etc.
Type We Could Offer
| Trademark | Nominal Chemical Composition | HRC | Application | Reference Standard | |||||||||
| C | Cr | Si | W | Ni | Fe | Mn | Mo | Co | others | ||||
| WL Co1 | 2.1 | 30.0 | 1.0 | 14.0 | ≤3.0 | ≤5.0 | ≤2.0 | ≤1.0 | Bal. | <1.0 | 48-54 | Valve seat insets, bearing, sawteeth, rotary ring, Pump Sleeves | Stellite 1, ECoCr-C |
| WL Co6 | 1.0 | 29.0 | 1.0 | 4.5 | ≤3.0 | ≤5.0 | ≤2.0 | ≤1.0 | Bal. | <1.0 | 38-44 | Engine valve, high temperature valve, turbine blade | Stellite 6, ECoCr-A |
| WL Co12 | 1.4 | 30.0 | 1.4 | 8.5 | ≤3.0 | ≤5.0 | ≤2.0 | ≤1.0 | Bal. | <1.0 | 44-50 | Pressure valves, sawteeth screw fights | Stellite 12, ECoCr-B |
| WL Co21 | 0.2 | 28.0 | 1.0 | ≤3.0 | ≤5.0 | ≤2.0 | 5.5 | Bal. | <1.0 | 20-40 | Fluid valve seat, turbine blades, hot forging die | Stellite 21, ECoCr-E | |
| WL Co25 | 0.15 | 20.0 | 1.0 | 14.0 | 10.0 | ≤5.0 | ≤2.0 | ≤1.0 | Bal. | <1.0 | 22-40 | High temperature and corrosion-resistant valve sealing surface, pressure casting dies, etc. | Stellite 25 |