Alloy

Colmonoy 57PTA

Alloy Type

Nickel with Tungsten Carbide

Nominal Composition (%)

C 0.50
Cr 11.5

B 2.5

Si 3.5

 Fe 3.5
W 16.0
Ni Balance

Rockwell Hardness
(C-scale)

Double pass: 52
Single pass: 47

Apparent

Density (gm/cc)

4.70

Fusing Temperature (approx.)

Solidus 1780°F
Liquidus 2050°F

Resistance:

to
Abrasion

to

Corrosion

to
Impact

to
Galling

 

1

2

3

2

Supplied Forms

Atomized powder

Method of application

PTA

Description and General Uses

 

Specifically formulated for overlaying the flights of new and rebuilt extrusion or injection molding screws using plasma transfer arc (PTA) application.