DELORO STELLITE 12
Diameter 3,2mm / 2.5mm
GTAW

Stellite cobalt base alloys consist of
complex carbides in an alloy matrix.
They are resistant to wear, galling and
corrosion and retain these properties
at high temperatures. Their exceptional
wear resistance is due mainly to the
unique inherent characteristics of the
hard carbide phase dispersed in a CoCr
alloy matrix.
Stellite 12 could be considered an intermediate
alloy between Stellite 6 and
Stellite 1. It contains a higher fraction
of hard, brittle carbides than Stellite 6,
and has increased resistance to lowangle
erosion, abrasion, and severe
sliding wear whilst retaining reasonable
impact and cavitation resistance.
Stellite 12 is often used self-mated or
running against Stellite 6 or Stellite 1.
The higher tungsten content provides better high-temperature properties compared to Stellite 6, and it can
be used at temperatures up to about 700?C.

Nominal Composition (mass %) and Physical Properties
TIG & OXY-ACETYLENE WELDING MMA WELD DEPOSITION MIG WELD DEPOSITION PTA & LASER WELD DEPOSITION
Co Cr W C Others Hardness Density Melting Range
Base 27-32 7.5-9. 5
1.4-1.7 (hardfacings)
1.7-2.0 (castings)
45-51 HRC
435-590 HV
8.53 g/cm
0.308 lb/in3
2192-2489 °F
1200-1365 °C