Heat treatment of WPS

[chiluka venkatramulu]

Dear All,

Pl clarify the below.

One of vessel under fabrication will under go the fallowing heat treatments. (Material-516 G 70, shell-63 mm, dish end -75mm, dish end in one piece only)

• Dishends Normalising-2 cycle.
• PWHT for whole vessel.

Now shall I need to do all three heat treatment cycles to qualify WPS?

OR

Only two normalising cycles are enough?

Regards,

Venkatramulu

[Raghuram Bathula]

WPS with PWHT is enough, since your dished end is in single piece (no welds).

you might include normalizing cycle only when any of the weld also under go normalizing (e..g dished end with weld)

-- 

[Prakash Hegde]

Hi!

Pl clarify

1)a)Does Dishend.have weld seam which ll undergo normalsing? After forming

If yes you wiil req qualified.WPS/pqr of normalise +pwht below Ac1 as per code for P1

b)If no then you need not.have pqr of Normalising but only Pwht below Ac1 as per code for P1

2) in case of condition (a) you should have 2Pqr one with NR+pwht  and second with pwht below Ac1

In case of condition (b) only.one Pqr of pwht below Ac1 temp as per P1 matl

Regards

Hegde

Sent from Yahoo Mail on Android

On Mon, 12 Aug 2019 at 15:44, chiluka venkatramulu

<ramulu...@gmail.com> wrote:

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAF98%2BdGvDLB4C3Y24JY-HL4JW2%3DC%2BUuXnw8sFhsPDo6-i0sKSg%40mail.gmail.com.

[Kannayeram Gnanapandithan]

Not necessarily . Only pwht cycle. If dish is made of petal or any welding involved and same WPS , then u have to simulate all Heatreatment. 

--

[Brijesh Maurya]

Dear sir,

please provide the code reference....

thanks & regards,

Brijesh maurya

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/1487532532.3710168.1565605847733%40mail.yahoo.com.

[Souravbohray]

make single pqr with 2normalizing + pwht

[Souravbohray]

first to think wps is for weld .so your weld is facing only pwht so you have to quailfy wps by pwht only , normalizing of dish head to do separately.if dish head is welded than wps to qualify with normalize + pwht in isngle coupon as per sec 9

On Monday, 12 August 2019 15:44:19 UTC+5:30, chiluka venkatramulu wrote:

[chandraknat vaidya]

Right Sir.

On Mon, Aug 12, 2019 at 5:40 PM 'Prakash Hegde' via Materials & Welding <material...@googlegroups.com> wrote:

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/1487532532.3710168.1565605847733%40mail.yahoo.com.

[sandeep kumar]

Refer ASME Section IX, QW 407.1 as your dishend are single piece and will be normalized before welding. So you have to follow PWHT for qualification which is applicable after welding for your vessel.

[Kannayeram Gnanapandithan]

if welding is done to form dish end ( like Pettal construction) then ur pqr should under all heat treatment.

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

--

https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-weld...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/6f573a01-0566-416e-99fa-248437a11066%40googlegroups.com.