Re: Out of range thickness for API 5L spec pipe

Hello Prasad,

It may be possible to make a pipe of any desired thickness, but the question is does it qualify to be called API 5L specification. The requirements for PWHT are not defined in API, for instance. The thickness in T&C or any other mill will list only API 5L or B 36.10 dimensions.

Sajit

• In PipingDesign@y..., "Prasad Mahavir/Piping" <jainmp@e...> wrote:
  > Hi Sajit,
  >
  > For many sizes, schedules beyond those listed in API 5L are also
  available.
  > Please refer to a catalogue of good Pipe Manufacturer. You may also
  like to
  > refer to the 'Blue Book' by Trouvay and Cauvin.
  >
  > Cheers,
  >
  > Mahavir
  > -----Original Message-----
  > From: sxviswan [mailto:b7g@t...]
  > Sent: 03 July, 2002 6:37 PM
  > To: PipingDesign@y...
  > Subject: [PipingDesign] Out of range thickness for API 5L spec
  pipe
  >
  >
  > The calculated thickness (per ASME B31.3) for the 1500# class of
  pipe
  > is outside the range of thickness listed in API 5L for a given
  size.
  > Even with Gr X60, larger sizes calculate to an out of range
  > thickness. The design pressure is close to the flange rating. Can
  > this pipe with the thickness not in the range be still be
  specified
  > as API 5L? If not, except by not using a still higher strength
  grade,
  > is there any other solution?
  >
  > Sajit
  >
  > Parsons
  > Kuwait
  >
  >
  >
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