01:47 May-19-2006 ranjeet singh Engineering, Asst.Manager-Condition Monitoring TATA chemicals ltd.(fertilizer div.), India, Joined May 2006 6
Ferrite Measurement in Reformer catalyst tube material Manurite 36X
We are operating a Ammonia plant (capacity 1700 TPD) and Urea plant (capacity 2250 TPD) .
We have reformer having following details: Thickness (msw) : 11.3 mm Material of tube : Manuarite 36X (Cr25%,Ni 35%,Nb) Length of tube : 13.65 Mts No of burner : 432 ( side fired )
We have measured ferrite no.using Elcometer banana type and found that in one of the tube FN is 13.5 . Let me know how much is allowed in such centrifugally casted tube in high temp.environment. As per our knowlege 13.5 FN means 13.5% austinite has converted into ferrite strcuture