Stellite 12 Weartech WT-12 Stellite 12 Green Hard Facing Rod Green
Color Cutter And Blade Outlet Valve Sealing Surface
Product Description
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.
Common Names: Stellite 12, BISHILITE (MHA) No.12, Weartech WT-12,
Stoodite 12, POLYSTEL 12
Standard: AWS 5.21-2001 ERCoCr-B
Chemical Composition(%)
C | Si | Mn | Mo | Cr | W | Ni | Fe | Co |
1.4 | 1.30 | ≤1.00 | ≤1.00 | 30.00 | 8.5 | ≤3.00. | ≤3.00 | Rest |
Characterisitic
AWS / ASME: A5.21 / SFA5.21 ERCoCr-B |
Metal to metal Wear | Excellent |
Cold / Hot Abrasion | Excellent/Excellent |
Erosion / Corrosion | Excellent/Excellent |
Deposit Layers | 2 Max |
Impact | Good |
Magnetic | No |
Thermal Conductivity | 14.6 W/m.K, 100 Btu-in/hr/ft2/°F |
Electrical Resistivity | 98 µ-ohm.cm, 38.6 µ-ohm.cm |
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 for pre-protection of plastics, paper-making, chemical fiber,
cutter and blade Outlet valve sealing surface
High temperature and high-pressure valve
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 |
