Re: Pipe wall thickness

Yes you can weld pipe with 12.5 mm thickness to fittings or pipe 11.0 mm thickness.The welded joint design in this case to comply with Fig. 434.8.6(a)-(2) of ASME B31.4.

• phenol19 <halvi@jgc-descon.com.pk> wrote:

> Hello.
>
> I want to ask a question about pipe wall thickness.
> Actualy we need a
> pipe with following details " Size : 34" , API 5L -
> B SAW BE ASME-
> B36.10M 11.0mm-T " while vendor is offering pipe
> with 12.5 mm
> thickness. On clarification from vendor, he respond
> that " The 11,0
> mm thickness is not standard. Therefore the delivery
> time will be 24
> weeks. Since 12,5 mm is a standard size, this is
> availleble from
> stock ". I Just want to confirm that if i replace
> pipe thickness
> with 12.5mm, will there any prblem on the welding
> time. I mean if i
> want to weld an elbow of 11mm thickness ( because
> vendor is offering
> elbow of 11mm thikness as per our requirement) and a
> pipe of 12.5mm
> thickness, there must be a problem of matching
> thickness. again if we
> weld a pipe of 12.5mm thikness with a WN flange of
> 11mm thickness,
> again same problem of matching size. Also my frend
> told me that there
> is a tolerance allowance of 1mm in welding. ( i am
> not sure about it )
>
> So please suggest me that there is no issue if we
> accept pipe with
> wall thinkess of 12.5mm. ofcourse its a better
> choice w.r.t pressure
> bearing property.
>
> Regards.
>
>
>
Received on Mon Feb 25 04:24:00 2008