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Nickel Base Cobalt Base
A selection guide to common vacuum melted alloys.

 
  The C-M Group Alloy Index is a useful selection guide to the  more commonly vacuum melted super alloys for investment castings.
The C-M Group has made a diligent effort to ensure that the specifications listed are accurate as of the date they were posted. However, the company assumes no liability for errors or omissions. Please consult the pertinent issuing organization to confirm specifications before ordering and to obtain specifications issued or modified after the posting of this guide.
 
 
Cobalt Base
Cobalt Base C Cr Ni Co Mo W Nb/Cb Ta Ti Al B Zr Hf Fe Re Other Density gm/cm3 Density lb/in3 Approximate Melting
Range °F 		 Approximate
 Melting Range °C 
FSX-414 0.25 29 10 Bal - 7.5 - - - - 0.010 - -     - 8.30 0.300 - -
Mar-M-302 0.85 21.5 - Bal - 10 - 9 - - 0.005 0.2 -     - 9.21 0.332 - -
Mar-M-509 0.60 23 10 Bal - 7 - 3.5 0.2 - - 0.5 -     - 8.85 0.319 2415-2525 1320-1385
Mar-M-918 0.05 20 20 Bal - - - 7.5 - - - 0.1 -     - -   -  
HS 21 0.25 27 3 Bal 5 - - - - - - - - 1    0.6 Mn, 0.6 Si -   -  
HS 31 (X-40) 0.50 25 10 Bal - 7.5 - - - - - - - 1.5   0.5 Mn, 0.5 Si 8.60 0.310 -  
X-45 0.25 25.5 10.5 Bal - 7 - - - - 0.010 - -     - 8.60 0.310 -  
HS 25 (L-605) 0.10 20 10 Bal - 15 - - - - - - -     - 9.13 0.330 -  
Haynes 188 0.10 22 22 Bal - 14 - - - - - - -     0.04 La 9.13 0.330 -  
AiResist 13 0.45 21 - Bal - 11 2 - - 3.5 - - -     0.1 Y -   -  
AiResist 213 0.18 19 - Bal - 4.7 - 6.5 - 3.5 - 0.15 -     0.1 Y -   -  
AiResist 215 0.35 19 - Bal - 4.5 - 7.5 - 4.3 - 0.13 -     0.17 Y -   -  
F-75 0.25 28 - Bal 5.5 - - - - - - - -     - 8.29 0.299 -  
WI-52 0.45 21 - Bal - 11 2 - - - - - - 2     8.88 0.321 -  
ECY 768 0.60 23 10 Bal - 7 - 3.5 0.2 - - - -     - -   -  

Home Air Melt Index Vacuum Melt Index Quality Certificates News & Technical Bulletins

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