Cobalt Alloys <Back

Properties: Heat Resistant, Corrosion Resistant, Wear Resistant
Applications: Aero Engine Parts

Stellite® is a registered trademark of Deloro Stellite Holdings Corporation, St.Louis, U.S.A.


Co Cr Ni W Mo C Fe B Cu Ta Others
Stellite® 1 50 33 - 13 - 2.5 - - - - -
Stellite® 3 52 30 - 13 - 2.4 - .10 - - -
Stellite® 4 53 31 3.0* 14 - 1.0* 3.0* - - - -
Stellite® 6 66 26 3.0* 5 - 1 3.0* - - - -
Stellite® 7 66 26 - 5 - 0.4 - - - - -
Stellite® 8 (F75) 63 30 - - 6 0.2 - - - - -
Stellite® 12 59 29 3.0* 9 - 1.8 2.0* - - - -
Stellite® 19 52 31 3.0* 10.5 - 1.7 3.0* - - - -
Stellite® 20 45 33 - 18 - 2.5 - - - - -
Stellite® 21 60 27 2.5* - 5.5 0.25 3.0* 0.005 - - -
Stellite® 23 65 25 1.5 5 - 0.4 2.0* - - - -
Stellite® 25 (L605) 52 20 10 15 - 0.15* 2.0* - - - -
Stellite® 30 50 26 15 - 6 0.45* 2.0* - - - -
Stellite® 31 (X40) 56 25 10 7 - 0.3 - - - - -
Stellite® X45 56 25 10.5 7.5 0.5* 0.3* 2.0* - - - 0.015* B
Stellite® 100 43 34 - 19 - 2 - - - - -
Stellite® 151 65 20 1.0* 13 - 0.5 2.0* 0.05 - - -
Stellite® 188 37 22 22 14 - 0.1 3.0* - - - 1.25* Mn
WI-52 (PWA 653) 63 21 1.0* 11 - 0.45* 1.5 - - - 2.0 Nb
S 816 44 20 20 4 4 0.35 5.0* - - - 4.0 Nb
Elgiloy 40 20 15 - 7 0.15 17 - - - 0.04 Be
Umco 50 50 28 - - - 0.12 20 - - - 0.75 Si
0.5 Mn
Umco 51 48 28 - - - - 20 - - - 2.0 Nb
0.7 Si
HS Star J 41 32.5 2.5* 17.5 - 2.4 3 - - - -
MAR M-302 57 21.5 - 10 - - - - - 9 0.2 Zr
MAR M-322 60 21.5 - 9 - 1 - - - 4.5 2.25 Zr
0.75 Ti
MAR M-509 50 21.5 10 7 - - 1 - - 3.5 0.5 Zr
0.2 Ti
MAR M-918 50 20 20 - - 0.05 0.5 - - 7.5 0.1 Zr
FSX 414 48 30 10.5 7 - 0.30* 1.5* - - - 0.015* B
MP35N 35 20 35 - 10 - - - - - -

* indicates maximum

The figures shown are nominal compositions of the various alloys. For more specific information please consult our technical staff.

This information is the result of a rigorous and exhaustive study of many sources. Whilst the greatest possible care has been taken to ensure its accuracy,we cannot accept responsibility for any errors or omissions that may have occurred during its compilation. Acknowledgement is made of the various tradenames, which appear for reference purposes only, that have been used in assembling this data.





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