Re: [MW:8927] Problem of PWHT

Follow the following Steps if it is practically feasible:

 

1. Carry out buttering of your P11 pipe of ER70S-B2L
2. Carry out Local PWHT of buttered pipe

3. Do welding of Buttered pipe with CS pipe using the same consumable.

 

Reg,

Jaydeep

 

On Fri, Dec 24, 2010 at 1:58 PM, vivek m <vivekmohan007@gmail.com> wrote:

On a mechanical CS  line after a 0.75" valve instrumentation impulse
line is coming which is of P11 material...........welding done using
ER70S-B2L. .....and now can I do PWHT to that joint which is to b done
as per procedure of alloy steel...since this joint is between AS to CS
is there any problem in doing PWHT

On 12/24/10, Yogesh kumar <yogeshandpini@gmail.com> wrote:
> Hi vivek
>
> Will you please elaborate more your CS/AS joint configuration  is not
> getting clear to me??
> yogesh.
>
>
> On Fri, Dec 24, 2010 at 9:25 AM, vivek m <vivekmohan007@gmail.com> wrote:
>
>> The impulse line is of P11 material and it has to be post heated...i
>> want to knw d problems dat may occur to the 0.75 joint  between cs and
>> as
>>
>> On 12/23/10, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com>
>> wrote:
>> > Generally Impulse lines are outside scope of ASME B31.3 and don't
>> > require
>> > PWHT. Even if it is designed by B31.3 it doesn't require PWHT as
>> thicknesses
>> > low, , unless it is a contractual requirement
>> >
>> > -----Original Message-----
>> > From: materials-welding@googlegroups.com
>> > [mailto:materials-welding@googlegroups.com] On Behalf Of vivek m
>> > Sent: Thursday, December 23, 2010 9:34 PM
>> > To: materials-welding@googlegroups.com
>> > Subject: [MW:8914] Problem of PWHT
>> >
>> > Dear all,
>> >  one of my P11 impulse pipe (0.75") is connected to a CS  0.75" valve
>> > which comes with big bore CS line (all as per drawing)......now shall
>> > i do pwht to that joint  ? If done will there be any problem to that
>> > joint ...please give me a detailed answer.
>> >
>> >
>> > Filtered by Hosted Filtering
>> >
>> >
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>
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