Stellite 1 Welding Electrode - Cobalt Based Alloy Hard Facing
Electrode Oil Drilling Tools Rotary Ring
Product Description
WL-Co1 is a hardfacing alloy possessing excellent abrasion and
corrosion resistance for applications such as pump sleeves, rotary
seal rings, wear pads, expeller screws and bearing sleeves. It
retains its hardness at temperatures in excess of 760°C (1400°F).
WL-Co1 contains a high proportion of hard, wear resistant primary
carbides. These render the alloy well suited to applications
involving extreme low-angle erosion and severe abrasion, with some
sacrifice in toughness. Compared to other WL-Co alloys it is more
crack-sensitive, and care should be taken to minimize the cooling
stresses experienced during casting and hardfacing processes. Due
to its high hardness and wear resistance, WL-Co1 should only be
finished by grinding.
Common Names: Stellite 1, BISHILITE (MHA) No.1, Weartech WT-1
Standard:AWS / ASME: A5.13 / SFA5.13 ECoCr-C
Chemical Composition(%)
Co | Cr | W | C | Ni | Mo | Others |
Bal. | 28-32 | 11-13 | 2.0-3.0 | <3.0 | <1.0 | Fe, Si, Mn |
Physical Properties
| Density | Melting Range |
50-58 HRC | 8.69 g/cm3 | 1190-1345 ºC |
Specification
AWS / ASME: A5.13 / SFA5.13 ECoCr-C |
Metal to metal Wear | Excellent |
Cold / Hot Abrasion | Excellent / Excellent |
Erosion / Corrosion | Good /Good |
Impact Resistance | Moderate |
Magnetic | No |
Deposit Layers | 2 Max |
Thermal Conductivity | 14.5 W/m.K, 100.5 Btu-in/hr/ft2/°F |
Electrical Resistivity | 94.0 µ-ohm.cm, 37.0 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
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 | 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 |
