Stellite 12 Hard Facing Powder Cobalt Based Powder Wood Cutting
Tools Molten Glass Cutter
Product Description
WL-Co12 could be considered as 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 high temperature properties compared to WL-Co6, and
it can be used at temperature up to 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 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
| Abrasion Resistance | Good |
| Impact Resistance | Good |
| Corrosion Resistance | Good |
| Hardness | HRC 44-50 |
| Deposit Layers | 2 MAX |
| Deposit Cross Checks | * No |
| Magnetic | No |
| Hot Wear Hardness | Good |
| Machineability | Carbide Tools |
Packing Details
Each bottle 5kg/bottles, 5 bottles pack in one carton,
then put cartons onto pallet or Box. OEM packing & label or
customized packing methods available.
APPLICATIONS
High temperature and high-pressure valve
Used for pre-protection of plastics, paper-making, chemical fiber,
cutter and blade Outlet valve sealing surface
Scissor Blades, Knives, Twist Rolls
Saw Blades, Saw Blades and Tips, Saw Teeth, Chain saw bars
Guide Bars
Wood Cutting Tools
molten glass cutter
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 |
