Kawat las electrode Stellite-1 Kennametal

STELLITE COBALT-BASED 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 1 possesses excellent abrasion and corrosion resistance for
applications such as pump sleeves, rotary seal rings, wear pads,
expeller screws, and bearing sleeves. It retains its hardness at
temperatures in excess of 760°C (1400°F).
Stellite 1 contains a high proportion of hard, wear-resistant
primary carbides. These render the alloy well suited to applications
involving extreme low-angle erosion and severe abrasion, with some
sacrifi ce in toughness. Compared to other Stellite alloys, it is more
crack-sensitive, and care should be taken to minimize the cooling
stresses experienced during casting and hardfacing processes. Due
to its high hardness and wear resistance, Stellite 1 should only be
fi nished by grinding.

NOMINAL COMPOSITION (MASS %) AND PHYSICAL PROPERTIES
Co Cr W C Others Hardness Density Melting Range
Base 28-32 11-13 2.0-3.0
Ni, Fe, Si,
Mn, Mo
50-58 HRC
550-720 HV
8.69 g/cm³
0.314 lb/in³
1248-1290ºC
2278-2355ºF