Welding Thermal Spraying Powder Stellite 21 Hardfacing

Place of Origin China
Brand Name WL
Model Number WL-Co21
Minimum Order Quantity 5KG
Price Negotiable
Packaging Details 5kg/bottles, 5 bottles pack in one carton
Delivery Time within 10 days
Payment Terms L/C, T/T
Supply Ability 300 tons per month

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Product Details
Shape Powder Color Dark Gray
Chemical Composition Co Cr W Fe C Ni Si Sample Available
Process PTA, HVOF, Laser Cladding, Plasma Spray, Spray-Fuse Application Hardfacing & Wear-resistant Welding
Certificate ISO9001 Hardness 20-35 HRC
Test Report Mill-Certificate Free Documents CO, Form A E F P, FTA
Label Brand, Neutral Or Customized Currency USD/EUR/GBP/RMB
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Welding Thermal Spraying Powder

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Thermal Spraying Powder Stellite 21

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Hardfacing powder flame spray

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Product Description

Stellite 21 Cobalt Base Hardfacing, Welding & Thermal Spraying Powder

 

Product Description

WL Co21 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 20-35
Deposit Layers Multiple
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.

Welding Thermal Spraying Powder Stellite 21 Hardfacing 0

 

 

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