Re: [MW:25773] reg: Maximum interpass temperature in a WPS

Sir

If client spec addresses the IP temp restriction we have to follow the same Generaly.some of the clients are particular about IP.Heat input as.it controls the properties of weld.Haz Therefore it is better to follow to avoid any any further argument with client 

Hegde

Sent from Yahoo Mail on Android

On Mon, 28 Nov, 2016 at 22:47, Prince C thomas

<princecthomas@gmail.com> wrote:

Dear Sir's,

Kindly reply to  my below query:

We have project approved WPS with following details:

Material Spec: ASTM A106 Gr.B

P no:1/Group no:1

Material thickness: 1.5 -14.22 mm

Welding process: GTAW+SMAW

GTAW-Filler wire : ER 70S-2

SMAW-Electrode: E 7018

Preheat - 10 deg minimum

Interpass temp: 200 Deg C Maximum

In the PQR: pre heat temperature:38 deg C

                  Interpass temperature: 68 deg C maximum

Since interpass temperature is not a essential variable (Impact test is not applicable); but still our client is asking to recheck the max.interpass temperature value ( 200 Deg C) in the WPS. How to convince client to get approval on the same?

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