Re: [MW:25342] Hardness Value For the P-91 and SS material.

Embritlement is not a problem in this combination and filler, but there will sensitisation in 316 side at high temp of PWHT

THANKS & BEST REGARDS,

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

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Thu, Sep 1, 2016 at 7:43 PM, J Prinsen <weldtech@online.nl> wrote:

Don't weld P91 directly to Stainless steel,
Embrittlement off one or both of the materials will be your part, depending on the PWHT.

 

This is a serious warning

 

 

JPrinsen MSc, IWE

 

 

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Van: dilintas@gmail.com
Aan: "Kannayeram Gnanapandithan" <materials-welding@googlegroups.com>, "materials-welding" <materials-welding@googlegroups.com>
Verzonden: Donderdag 1 september 2016 15:42:00
Onderwerp: Re: [MW:25339] Hardness Value For the P-91 and SS material.

According to the bibliography min hardness on P91 should be 191 HV

Sent from my BlackBerry 10 smartphone.

From: Kannayeram Gnanapandithan Sent: Τετάρτη, 31 Αυγούστου 2016 - 08:38 To: materials-welding Reply To: materials-welding@googlegroups.com Subject: Re: [MW:25334] Hardness Value For the P-91 and SS material.

Hardness only on HAZ of P91 is to be around 230Hv

THANKS & BEST REGARDS,

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

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Tue, Aug 30, 2016 at 9:59 AM, pradip kumar Sil <pradipsil@gmail.com> wrote:

Dear Everybody,

How much is Lower & Upper  hardness limit with code reference for the weldment of  ASTM-A-335 Gr. P-91 To A312 TP 316 with filler combination ER-Ni Cr3.

Regards,

Pradip

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