PRODUCT DESCRIPTION
Stellite 1 ERCoCr-C POLYSTEL 1 Cobalt Welding Rod Hard Facing Rod Engine Valve Pump Sleeves
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, Polystel 1
Standard: AWS 5.21-2001, ERCoCr-C
Chemical Composition(%)
| C | Si | Mn | Mo | Cr | W | Ni | Fe | Co |
| 2.5 | 1.00 | ≤1.00 | ≤1.00 | 29.00 | 12.5 | ≤3.00. | ≤3.00 | Rest |
Characterisitic
| AWS / ASME: A5.21 / SFA5.21 ERCoCr-C | |
| Metal to metal Wear | Excellent |
| Cold / Hot Abrasion | Excellent / Excellent |
| Erosion / Corrosion | Excellent / Excellent |
| Impact | Unsatisfactory |
| 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 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
