API-5L Pipe Callout?

11echo · Oct 23, 2007

I have a question about an API-5L callout for pipe. "IF" I had an API-5L-X60 callout for pipe, am I correct that a number of ASTM materials "could" be suitable to use under this API-5L callout? The API-5L callout is just a specification (a requirement of materials to carry a given commodity at a given pressure/temp./tensile strength). And that under API-5L-X60 …ASTM A106-B, A53-B, & A139-B "could" be used under this API-5L listing?
My main question is that the API-5L is just a specification and NOT a material callout like an ASTM listing? I’m use to dealing with pipe under the ASTM designation, and am trying to understand what the API-5L is about. …THX!

0707 · Oct 24, 2007

Standards referenced in API specification 5L may be replaced by other international or national standards that can be shown to meet the requirements of the referenced standard. Manufacturers who use other standards in lieu of standards referenced in API5L are responsible for documenting the equivalency of the standards.

So, in my opinion, the answer to your question is yes, tanking into account the above statement.

luis marques

dcasto · Oct 24, 2007

I'd have to modify the answer to maybe. What you need to take into account is the -X60 on the API5L. It means 60,000 psi yield strenght. On A106 grade B, it only has a 35,000 psi yield strenght. You may have big trouble if the specs called for 60,000 and you put in 35,000.

In ANSI B 31.3, they do not recognize anything X60 pipe and you'd have to use 35,000 psi yield in your calculations.

A lot of pipe is co-stamped API5L X42 and A106 Grade B.

11echo · Oct 24, 2007

I understand the X60 part of this API-5L listing, again I'm more interested in the material aspect of this callout. As I stated before ..."My main question is that the API-5L callout is just a piping specification and NOT a material callout like an ASTM listing?"

PS - what I listed above is just an example of an API-5L callout.

dcasto · Oct 24, 2007

I guess I don't see the difference. API5L-XXX is an absolute untouchable, unless the engineer says or equal per whatever clause, standard, or ???.

11echo · Oct 24, 2007

I guess I'm not making myself clear here, so I'll try the "Basic mode" *G*

IS the API-5L callout a material call out, where the properties & percentage of the components of the steel are listed? (Like an ASTM listing)

OR is the API-5L callout a piping specification, where it just lists the requirements of the pipe to carry a specific commodity under certain press/temp/yield strength? But does NOT point to any one type of steel?

...I do any better? *G*

BigInch · Oct 25, 2007

You are correct. A number of different steels or manufacturing processes could be used. All you are assured of getting by specifying API 5L X60, without additional details, is a pipe meeting API 5L with a minimum yield point of 60 ksi. It could be manufacturered to SMLS, DSAW, UOE, etc. and composed of a number of different elements and compounds at various concentration quantities up to permitted limits.

ASTM A106 B or any other MATERIAL not meeting X60 should not be supplied or accepted if its yield is not at least 60 ksi.

http://virtualpipeline.spaces.msn.com

dcasto · Oct 25, 2007

How about this, the API5L is a performance based standard and the ASTM A106 is a perscriptive standard. You must follow the standard "call out" or you are not in compliance with either one.

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