Preheat & PWHT values as per API 1104

151 views

Skip to first unread message

ASIF

unread,

Jan 13, 2010, 9:36:04 AM1/13/10

to material...@googlegroups.com

Dear all

how to determine the values of Preheat or PWHT for Cross Country Pipeline Welding (As per API 1104)
Like we refer 330 & 331 tables of ASME B3.3 for process piping
& Non-mandatory Appendix R & UCS-56 of ASME SECVIII div 1 for PV

--
Best Regards;
ASIF IQBAL SYED
CSWIP 3.1-38557,
ASNT-Level II (RT, UT, MPT & LPT)
0091-99750 163 55

sethurama lingam

unread,

Jan 14, 2010, 10:54:01 PM1/14/10

to material...@googlegroups.com

Dear Aisf,

What type of fluid using in cross country pipe line crude or gas ,then only you have decide the value of preheat and PWHT ,correspondingly refer ASME 31.4 or 31.8

Regards,

Sethuramalingam.P

Sr.Engineer-FQC

India

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.