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Rulon Bearings

Stellite Alloy No. 21 cast (UNS R30021) Superalloy
Categories: Metal; Nonferrous Metal; Cobalt Alloy

Material Notes: As-cast

Co/Bal66.7-Cr24-Fe1-Mo5-Ni2

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Physical PropertiesMetricEnglishComments
Density 8.30 g/cc0.300 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Rupture Strength  48.0 MPa
@Temperature 980 °C,
Time 3.60e+6 sec
6960 psi
@Temperature 1800 °F,
Time 1000 hour
 65.0 MPa
@Temperature 980 °C,
Time 360000 sec
9430 psi
@Temperature 1800 °F,
Time 100 hour
 305 MPa
@Temperature 650 °C,
Time 3.60e+6 sec
44200 psi
@Temperature 1200 °F,
Time 1000 hour
 352 MPa
@Temperature 650 °C,
Time 360000 sec
51100 psi
@Temperature 1200 °F,
Time 100 hour
 
Component Elements PropertiesMetricEnglishComments
Chromium, Cr 24 %24 %
Cobalt, Co 66.7 %66.7 %
Iron, Fe 1.0 %1.0 %
Molybdenum, Mo 5.0 %5.0 %
Nickel, Ni 2.0 %2.0 %

References for this datasheet.

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