Alloy

Colmonoy 88

Alloy Type

Nickel with Chromium Carbide

Nominal Composition (%)

C 0.80
Si 4.00
Cr 15.00
Fe 3.50

 B 3.00
W 16.50
Ni Balance

Rockwell Hardness
(C-scale)

59-64

Density (gm/cc)

9.89

Fusing Temperature (approx.)

2020°F
1100°C

Resistance:

to
Abrasion

to

Corrosion

to
Impact

to
Galling

 

1

1

3

1

Supplied Forms

Atomized Powder, Bare rod, Cored Wire

Method of application

Spraywelder, Fusewelder, Oxyacetylene, GTAW

Description and General Uses

 

Unique alloy contains chromium tungsten borides and carbides for maximum abrasion and corrosion resistance. For high-temperature, highly abrasive applications; glass mold plungers, pump plungers and sleeves, valve seats, plastic extrusion screws. Finish by grinding or CBN tools.