How to predict the ferrite content in the 9%Cr-1%Mo steel (P91) ?

[stanislasdz]

How to predict the ferrite content in the 9%Cr-1%Mo steel (P91)

Thanks

 

[metengr]

stanislasdz;
You can predict ferrite content by obtaining a CCT diagram for this steel. They are available. You can also contact V&M for this information.

 

[stanislasdz]

thanks metenger

Have a look on page 7 on this paper

http://www.msm.cam.ac.uk/phasetrans/2005/LINK/54.pdf

can you tell me the accuray of this formula ?

 

[metengr]

stanislasdz;
Looks interesting and I will read the paper. I would still contact V&M because they have been producing Grade 91 material for years. They would be very helpful in this area.

 

[stanislasdz]

Thanks....