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Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments
Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments
Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments
Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments
Specifications
Brand Name :
WL-ALLOTECH
Model Number :
stellite 21 Electrode
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 :
5kg each vacuum packing, a carton 4 packs a total of 20kg
Price :
Negotiable
Shape :
Electrode
Certificate :
ISO 9001
Hardness :
27-40 HRC
Density :
8.33 g/cm3
Dimensions :
3.2-6.0mm
Melting Range :
1295-1435 ºC
Test Report :
Mill-certificate
Product name :
Cobalt Base Electrode
AWS / ASME :
A5.13 / SFA5.13 ECoCr-E
Material :
Co Cr Mo C Ni Fe Si Mn
Equivalent :
Stellite 21, BISHILITE (MHA) No.21, Weartech WT-21
Application :
Fluid valve seat, turbine blades, hot forging die etc
Description

Stellite 21 Ecocr-E Welding Electrode - Cobalt Based Alloy Hard Facing Electrode Electrical Resistivity Heat Treatments

Product Description

WL-Co21 (previously known as WL-Co8) was developed in the mid 1930s as a corrosion resistant CoCr alloy, and rapidly found application as a biocompatible hip implant and denture alloy. Many of the alloys currently used in medical applications are variants of the original WL-Co21 composition. It was also one of the first heat-resistant alloys trialled for use in jet engines.

WL-Co21 consists of a CoCrMo alloy matrix containing dispersed hard carbides which strengthen the alloy and increase its hardness, but also decrease the ductility. The type, shape, size, and distribution of the carbides is strongly influenced by the processing history of the alloy, and for this reason the mechanical properties of WL-Co21 are very dependent upon the manufacturing route and any subsequent heat treatments.

WL-Co21 has excellent resistance to thermal and mechanical shock. Optimum high temperature strength is obtained by solution heat treatments at 1200-1240ºC (2190 - 2265ºF) followed by quenching, and aging in the temperature range 7001150°C (1290-2100°F).

Common Names: Stellite 21, BISHILITE (MHA) No.21, Weartech WT-21
Standard:AWS / ASME: A5.13 / SFA5.13 ECoCr-E

Chemical Composition(%)

Co

Cr

Mo

C

Ni

Others

Bal.

26-29

4.5-6.0

0.20-0.35

2.0-3.0

Fe, Si, Mn


Physical Properties​

Hardness

Density

Melting Range

27-40 HRC

8.33 g/cm3

1295-1435 ºC

Specification

AWS / ASME: A5.13 / SFA5.13 ECoCr-E

Metal to metal Wear

Excellent

Cold / Hot Abrasion

Good / Good

Erosion / Corrosion

Excellent / Excellent

Impact

Excellent

Magnetic

No

Deposit Layers
Multiple

Thermal Conductivity

14.5 W/m.K, 100.5 Btu-in/hr/ft2/°F

Electrical Resistivity
87.38 µ-ohm.cm, 34.4 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.Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments

Applications

It is usd for applications involving cavitation, erosion, corrosion and/or high temperatures,

such as valve trim for petrochemical and power generation, biocompatible hip implant and denture alloy, ​

Fluid valve seat, turbine blades, hot forging die etc.

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
Product tags

electrode selection for arc welding

,

mild steel welding electrodes

,

carbon arc gouging electrodes
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Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments

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Product Detail
Brand Name :
WL-ALLOTECH
Model Number :
stellite 21 Electrode
Place of Origin :
China
MOQ :
5kg
Payment Terms :
L/C, T/T
Supply Ability :
300 tons per month
Contact Supplier
Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments
Stellite 21 Ecocr-E Welding Hard Facing Electrode Electrical Resistivity Heat Treatments

Changzhou WL Allotech Material Co.,Ltd

Verified Supplier
3 Years
jiangsu, changzhou
Since 2009
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company, Seller, Other
Main Products :
Hard Facing Rod & Powder, Special Alloy, Hard Facing Electrode
Total Annual :
30000000-50000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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