WL Co6

WL Co6

 

Stellite 6 Weartech WT-6 Welding Electrode - Cobalt Based Alloy Hard Facing Electrode High Temperature Valve

Properties: High temperature performance, wear and corrosion resistance

Application: Engine valve, high temperature valve, turbine blade

description1
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Product Description

WL-Co6 is the most widely used of the wear resistant cobalt-based alloys and exhibits good all-round performance. It is regarded as the industry standard for general-purpose wear resistance applications, has excellent resistance to many forms of mechanical and chemical degradation over a wide temperature range, and retains a reasonable level of hardness up to 500°C (930°F). It also has good resistance to impact and cavitation erosion. WL-Co6 is ideally suited to a variety of hardfacing processes and can be turned with carbide tooling. Examples include valve seats and gates, pump shafts and bearings, erosion shields, and rolling couples. It is often used self-mated.

 

Common Names: Stellite 6, Polystel 6, Hoganas 2537
Standard:AWS / ASME: A5.13 / SFA5.13 ECoCr-A

Chemical Composition(%)

Co

Cr

W

C

Ni

Mo

Others

Bal.

27-32

4-6

0.9-1.4

<3.0

<1.0

Fe, Si, Mn

Physical Properties

Hardness

Density

Melting Range

36-45 HRC

8.44 g/cm3

1285-1410 ºC

Specification

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

Metal to metal Wear

Excellent

Cold / Hot Abrasion

Good / Good

Erosion / Corrosion

Excellent / Excellent

Impact

Excellent

Magnetic

No

Deposit Layers

2 Max

Thermal Conductivity

14.82 W/m.K, 102.7 Btu-in/hr/ft2/°F

Electrical Resistivity

106 μ-ohm.cm, 41.7 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.

 

Application

The most widely used Cobalt Alloy with good mechanical
properties at different temperatures, Recommended use
for making valve seat material, hot shear blade, high temperature valve , turbine blade ,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