Alloy

Colmonoy 705

Alloy Type

Nickel with Tungsten Carbide

Nominal Composition (%)

C 2.00
Si 2.30
Cr 5.40
Fe 2.50

 B 1.50
Co 0.10
W 48.00
Ni Balance

 

Rockwell Hardness
(C-scale)

58-63

Density (gm/cc)

13.38

Fusing Temperature (approx.)

1875°F
1025°C

Resistance:

to
Abrasion

to

Corrosion

to
Impact

to
Galling

 

1

2

4

1

Supplied Forms

Composite Powder

Method of application

Fusewelder

Description and General Uses

 

A tough nickel-chromium-boron matrix alloy holds extremely hard tungsten-carbide particles used for protection from severe sliding abrasion.  Used on screw conveyors and augers. Finished by grinding.