Saturday, February 25, 2012

[MW:13777] Ferrite Number.....

Dear Experts,
 
During Ferrite check on the strip cladding, we noticed FN as 1.5, 2, 2.5 whereas project specn requires 3 to 10.
These low FN is noticed near the cirseam joints in the vessel. May be the first or last pass of strip cladding when strip cladding is done in each shell. 
Please send me some info about root cause, remedial action that is to be taken and reference to code/specn. 
 
With regards,
Govi.

No comments:

[MW:35763] Hardness range for CS+ Alloy0625 clad welding

Dear experts. I am currently in the process of qualifying a PQR for API 5L X65 + A350 LF6. Both material consists of a base metal with alloy...