Re: [MW:24958] Making WPS from PQR of CLAD material.

What about strength?

On 15-Jun-2016 4:31 pm, "Lalu Rajendran" <lalucpt@gmail.com> wrote:

Austenitic consumables (E309L) can be used for SS 410S material for temperature below 600 deg C due to sigma formation (Brittle phase) in the welds. Also PWHT can be avoided if you use E309L.

regards,

LALU 

On Wed, Jun 15, 2016 at 10:43 AM, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:

change in Pno is essential variable.

For P7toP7, why 309L?

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Wed, Jun 15, 2016 at 8:33 AM, makrand sakpal <makrands9@gmail.com> wrote:

Is there any specific reason?

On 14-Jun-2016 12:13 pm, "Lalu Rajendran" <lalucpt@gmail.com> wrote:

Hi,

No, You must qualify a separate PQR for P7 to P7 with ER 309LMo.

regards,

LALU

On Tue, Jun 14, 2016 at 5:33 AM, Hareesh K V <hareesh13h@gmail.com> wrote:

Dear all,

we have qualified a PQR (groove weld) for clad material (SA 240 410S (Clad) to Carbon Steel that is P7 to P1 material) using ER 309L Mo for the clad portion and E7018 for the rest.

Now we have to weld SA240 410S to SA240 410 S material for another job.

My question is, can we use the above said qualified PQR to make a wps of SA240 410S to SA240 410 S material, as other variables are same.

Thanking you,

Hareesh K V
+91-9447625012

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