Hi,
Tube means small bore like 2' od and less.but pipe means more than 2' its not depends on the thickness.
thank you
with regards
>
> On Feb 26, 2007, at 3:12 AM, meetmenil123 wrote:
>
> > Can anybody tell me what is ASME STD for tubes?
> And what is diffrence
> > between pipes and tubes?
> This is something you should already know from
> reading through the
> material specs for pipe and tubes. You should also
> know it already from
> reviewing the archives because it's been discussed
> many times. Finally
> you should already know it from doing a Google
> search on the topic. If
> you can't make good use of your reference material,
> your career as a
> piper is not going to be a pleasant one.
>
> That said, pipe is specified by the OD and specific
> odd-seeming wall
> thickness using somewhat arcane wall thicknesses.
> Tubing is also
> specified by OD, but available OD's normally are
> so-called 'preferred'
> (1/16", 1/8", 3/16" etc here in the US, and
> analogous dimensions for
> ISO) dimensions and the wall thicknesses are
> normally those for which
> sheet metal and thin plate are stocked. Tube and
> pipe are not normally
> interchangeable unless you get lucky. Flanges, for
> example, are made to
> fit pipe, not tube.
>
> Do yourself a favor make a Google search and
> download a schedule of
> pipe sizes from any of hundreds of suppliers who
> have such things at
> their web sites.
>
> Christopher Wright P.E. |"They couldn't hit an
> elephant at
> chrisw@skypoint.com | this distance" (last words
> of Gen.
> .......................................| John
> Sedgwick, Spotsylvania
> 1864)
> <a href="http://www.skypoint.com/~chrisw/">http://www.skypoint.com/~chrisw/</a>
>
>
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