Wednesday, February 17, 2010

[MW:4335] PWHT OF MATERIAL P No.5B


Dear all,

I need the following information. 

what is the soaking temperature?
what is the minimum holding time? 
What is the preheat and interpass temperature?

i have to make 1" sch 80 SA 335 Gr. P5  coil and there are 5 butt joints and i have to qualify wps aslo as per ASME SEC. IX.
As per ASME SEc. VIII Div. I normal holding temp. is 675 degree C and minimum holding time is 15 minutes. 
and as per ASME SEC. II part C Holding temp. is 745 degree C and holding time  is 1 hr./ in.

Thanks & Best Regards.

Manoj.

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