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| Categories | Hard Facing Rod & Powder |
|---|---|
| Brand Name: | WL-ALLOTECH |
| Model Number: | WL-Co21 |
| Place of Origin: | China |
| MOQ: | 5kg |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 300 tons per month |
| Delivery Time: | within 10 days |
| Packaging Details: | Each tube 5kg, 4 tubes pack in one carton |
| Price: | Negotiable |
| Shape: | rod |
| Color: | Blue |
| Material: | C Si Mn Mo Cr W Ni Fe Co |
| Welding Current: | International Standard |
| Test Report: | Mill-certificate |
| Certificate: | ISO 9001 |
| Diameter: | 2.5-8.0mm |
| Type: | Hardfacing welding rods |
| Keyword: | Cobalt based welding rods |
| Length: | 350mm 500mm 1000mm 2000mm 3000mm 4000mm |
| Process: | PTA / Laser Cladding / HVOF / Plasma Spray/ 3D Printing |
| Equivalent: | Stellite 21, BISHILITE (MHA) No.21, Weartech WT-21, Stoodite 21, POLYSTEL 21 |
| Application: | make various liquid valves, valve seats Water turbine blade, hot forging die |
| Company Info. |
| Changzhou WL Allotech Material Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
Stellite 21 Cobalt Based Alloy Hard Facing Rod AWS 5.21-2001 ERCoCr-E Hot Forging Die Various Liquid Valves
Product Description
WLCo 21 is recommended for applications involving cavitation, erosion, corrosion and/or high temperatures, such as valve trim for petrochemical and power generation. Due to its good impact resistance, it has been widely used in the building up of forging or hot stamping dies.
Common Names: Stellite 21 Polystel 21 Standard: AWS 5.21-2001 ERCoCr-E
Chemical Composition(%)
C | Si | Mn | Mo | Cr | W | Ni | Fe | Co |
0.25 | 1.50 | ≤0.50 | 5.50 | 27.30 | ≤0.50 | 2.00 | 1.50 | Rest |
Characterisitic
Abrasion Resistance | Moderate |
Impact Resistance | Excellent |
Corrosion Resistance | Good |
Hardness | HRC 20-40 |
Deposit Layers | Multiple |
Deposit Cross Checks | No |
Magnetic | No |
Hot Wear Hardness | Good |
Machineability | Carbide Tools |
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 various liquid valves, valve seats
Water turbine blade, hot forging die
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 | |
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