Pipe line End Beveling
Pipe line End Beveling
(OP)
Dear All,
Please help me to clear a situation i am facing with my client,
I am a supplier of line pipes and my contract for supplying pipes beveled according to ANSI B16.25 while the producing mill have surprised me that their availability to produce pipes with beveled ends per API 5L,
(pipes are 21km 8" sch. 80 ERW),
So, please advise me about the differences (technically) between the two types of beveling and both of their preferable cases of applications.
Appreciate your efforts in advance.
Regards
Mohamed Fayed
Please help me to clear a situation i am facing with my client,
I am a supplier of line pipes and my contract for supplying pipes beveled according to ANSI B16.25 while the producing mill have surprised me that their availability to produce pipes with beveled ends per API 5L,
(pipes are 21km 8" sch. 80 ERW),
So, please advise me about the differences (technically) between the two types of beveling and both of their preferable cases of applications.
Appreciate your efforts in advance.
Regards
Mohamed Fayed





RE: Pipe line End Beveling
B16.25 requires bevel angle to be 37.5 degrees (+/- 2.5 deg)
API 5L requires bevel 30 degrees (+ 5 / - 0 deg)
The greater angle of bevel will require more weld metal and therefore more time / cost
Regards,
Kiwi
RE: Pipe line End Beveling
My sincere appreciation to your kind response/efforts,
While if using B16.25 is a waste of weld metal/time/cost, what are the advantageous gain by using B16.25 which insisted to be used by my client, how i can convince him using well known codes that API should be prevails as it is the most suitable code to be used.
Thanking for you kind attention and any one can help me regarding this issue.
Best Regards
Mohamed Fayed
RE: Pipe line End Beveling
If you look at B31.3 code, the bevel angle is also 37.5 degree. However, I was told by many people that as long as you can get root pass done, no differencde between the two. I deal with lots of large diameter welded duct, from 50" to more than 100" with 60 psig, 5/8" thick wall and I have been used 30 degree bevel for years.
RE: Pipe line End Beveling
If it ain't broke, don't fix it. If it's not safe ... make it that way.
RE: Pipe line End Beveling