Stellite 21 kenbametal
ER CoCr-E
diameter 3,2mm
panjang 1 meter
made in usa
Note : jual ecer per kilo

Stellite 21 consists of a CoCrMo alloy matrix containing
dispersed hard carbides which strengthen the alloy
and increase its hardness, but also decrease the ductility.
The type, shape, size, and distribution of the carbides is
strongly influenced by the processing history of the alloy,
and for this reason the mechanical properties of Stellite
21 are very dependent upon the manufacturing route and
any subsequent heat treatments.
Due to the low volume fraction of carbides, the Co-based
alloy matrix dominates the wear and corrosion properties. Stellite 21 has excellent cavitation, galling and metal-tometal
sliding wear resistance, but is not recommended for severe hard particle abrasion. The surface can work harden
considerably during wear or even during machining, and the use of correct machining tools and techniques is important
to achieve optimal results.
Stellite 21 has excellent resistance to thermal and mechanical shock. Optimum high temperature strength is obtained
by solution heat treatments at 1200-1240ºC (2190 – 2265ºF) followed by quenching, and aging in the temperature
range 700-1150°C (1290-2100°F).