Re: [MW:22008] WELDING JOINT A335 P91

Dear experts,

As per my expereince, we should use B9 instead of B3. During operation (One year) it will give type III or IV crack and we need to cut it out again. According to Babcock and Wilcox and Vallaourec & Mannesmann, it might give higher hardness and we may do not get the required micro structure as well. 

Kind regards

Muhammad Hussain

Lead Metallurgist

TCR Arabia Company Limited

Dammam- Saudi Arabia 

On Sunday, September 28, 2014 11:29 AM, Bala Nechur <bala.Nechur@phoenixindustrial.ca> wrote:

Hello Expert,

 

I recommend to use ER9S-B9 and E9018-B9 which will match the chemistry of A335 Gr P91 material.

 

Bala Nechur,

Corporate QA/QC Manager

Phoenix Industrial,

Office: 780-428-3130  Ext 736

Cell: 780-204-0239

Fax: 1-866-211-3193

Toll Free: 1-866-778-3130

Email: bala.nechur@phoenixindustrial.ca

                                                                                                     

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From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of pras ari
Sent: September-26-14 10:16 PM
To: materials-welding@googlegroups.com
Subject: [MW:22004] WELDING JOINT A335 P91

 

Dear Experts,

We have study case, on our project (steam power plant project), there was any welding joint i.e. welding pipe A335 P91 to A335 P91 with filler metal GTAW ER90S-B3 + SMAW E9015-B9 and PWHT 750 C with holding time 2 hours.
Please advise us, what impact these welding joint for strength and lifetime if compare with GTAW ER90S-B9 + SMAW E9015-B9 and PWHT 750 C with holding time 2 hours.
What can we do and the solution this case.

Thanks and regards
Winarko
QA/QC Welding Inspector
+6281288300094

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