Alloy

Colmonoy 635

Alloy Type

Nickel with Tungsten Carbide

Nominal Composition (%)

C 2.30
Si 3.00
Cr 8.00
Fe 2.50

 B 1.90
Co 2.30
W 30.80
Ni Balance

 

Rockwell Hardness
(C-scale)

58-63

Density (gm/cc)

11.46

Fusing Temperature (approx.)

1930°F
1055°C

Resistance:

to
Abrasion

to

Corrosion

to
Impact

to
Galling

 

1

2

4

1

Supplied Forms

Composite Powder

Method of application

Spraywelder

Description and General Uses

A nickel-chromium-boron matrix alloy is used to hold extremely hard tungsten-carbide particles. Provides excellent protection against abrasive wear.  Finished by grinding.