Weartech Wt-12 Welding Hard Facing Electrode Cobalt Based Alloy For Cutting Bearing Bushes
Weartech Wt-12 Welding Electrode - Cobalt Based Alloy Hard Facing Electrode Used For Cutting Bearing Bushes
WL-Co12 could be considered an intermediate alloy between WL-Co6 and WL-Co1. It contains a higher fraction of hard, brittle carbides than WL-Co6, and has increased resistance to lowangle erosion, abrasion, and severe sliding wear whilst retaining reasonable impact and cavitation resistance. WL-Co12 is often used self-mated or running against WL-Co6 or WL-Co1. The higher tungsten content provides better hightemperature properties compared to WL-Co6, and it can be used at temperatures up to about 700˚C.
WL-Co12 is typically used for cutting tools that need to withstand abrasion, heat and corrosion. Examples include industrial knives for cutting carpets, plastics, paper and synthetic fibres; and saw tips in the timber industry. It is also used for control plates in the beverage industry, pump vanes, bearing bushes and narrowneck glass mold plungers; and for hardfacing of engine valves, pinch rollers in the metal-processing industries, and rotor blade edges. Used in the work of 650 degrees Celsius should be able to maintain good wear resistance and a certain degree of corrosion resistance of the occasion; for example, the high temperature and high pressure welding valve and hot shear knife, the impact of hot and cold staggered place.
Common Names: Stellite 12, BISHILITE (MHA) No.12, Weartech WT-12
Standard:AWS / ASME: A5.13 / SFA5.13 ECoCr-B
Chemical Composition(%)
|
Co |
Cr |
W |
C |
Ni |
Mo |
Others |
|
Bal. |
27-32 |
7.5-9.5 |
1.4-1.7 |
<3.0 |
<1.0 |
Fe, Si, Mn |
Physical Properties
|
Hardness |
Density | Melting Range |
| 45-51 HRC | 8.53 g/cm3 | 1200-1365 ºC |
Specification
|
AWS / ASME: A5.13 / SFA5.13 ECoCr-B |
|
| Metal to metal Wear | Excellent |
| Cold / Hot Abrasion | Excellent / Excellent |
| Erosion / Corrosion | Excellent / Excellent |
| Impact | Good |
| Magnetic | No |
| Deposit Layers |
2 Max
|
| Thermal Conductivity | 14.6 W/m.K, 100 Btu-in/hr/ft2/°F |
| Electrical Resistivity |
98 µ-ohm.cm, 38.6 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
It is used for industrial knives for cutting carpets, plastics, paper and synthetic fibres; and saw tips in the timber industry, control plates in the beverage industry, pump vanes, bearing bushes and narrowneck glass mold plungers; and for hardfacing of engine valves, pinch rollers in the metal-processing industries, and rotor blade edges.
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 |
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