Line pipe spec to API 5L and ISO 3183

[nhliew]

I have received some line pipes with the notation L290 instead of API 5L X42 that we have ordered. This had caused some confusion during material acceptance with the client but was eventually resolved by way of qualifying the SMYS and chemical composition.
Is this notation adopted industry wide with the 44th edition of API Spec 5L (with ISO 3183 adoption), or are the old notations of A, B, C, X42, etc still in use?

 

[SJones]

Both notations are in common use. Two guesses as to which parts of the world have the preference for each designation! It seems that you had a little storm in a teacup over L290 when API 5L clearly shows the interchangeability of designations; things should have been pretty straightforward.

Steve Jones
Materials & Corrosion Engineer

http://www.linkedin.com/pub/8/83b/b04

 

[nhliew]

Thanks Steve, up to 2 weeks ago I was still using API Spec 5L year 2000 edition, and so was the client, so we were thrown a little off the course for a few days.