Requirements for welding of A517-Gr.B

[kianoosh zarrin naghsh]

Dear All, Is there any experience on welding of A517-Gr.B with thickness up to 20 mm?   Thanks, Kianoush Zarrin naghsh

[pgoswami]

Hi Kianoush,

 

Attached are some guidelines  on A/SA-517 steel. This steel is a Q&T steel contains various alloying elements (different grades have different compositions). Welding of this steel would require a precise control of heat input and welding parameters and correct selection of welding electrodes.

 

Generally there's no electrodes of exact matching chemistry for this steel. However if I have to make a choice , the preference would be either E-9018/10018/11018M SMAW electrodes and matching GTAW, GMAW  and SAW filer depending on the process and  extent of fabrication involved.

 

Many fabricators may prefer E-9018/10018/11018G (General Low Alloy Steel) electrodes, but if the desired chemistry is specified beforehand, so that there would not be any later surprises?

 

What's the design code ? For fabricating A-517 steel one has to incorporate strictly the design code requirements.

 

Let me know if the attached information helps you or not?.

 

Thanks.

 

Pradip Goswami,P.Eng.

Welding & Metallurgical Specialist & Consultant

Email-pgoswami@sympatico.ca,

pgos...@quickclic.net

 

---

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of kianoosh zarrin naghsh
Sent: Saturday, October 23, 2010 10:10 AM
To: material...@googlegroups.com
Subject: [MW:7740] Requirements for welding of A517-Gr.B

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[PREM SHANKARDUTT NAUTIYAL]

Hi

I have welded SA517 material in past and thickness more than 20mm also.
We had used E11018M for SMAW and ER110S-G for GTAW.

Preheat, interpass temp, optimum welding parameters, controlled heat input and control on diffusible hydrogen for SMAW consumables plays a key role in getting radiographic sound welds.
If you want detailed info. then drop a line to me.

Regards

Prem Nautiyal

On Mon, 25 Oct 2010 11:31:22 +0530 wrote
>
Hi Kianoush,

Attached are someguidelines on A/SA-517

steel. This steel is a Q&T steel contains various alloying elements
(different grades have different compositions). Welding of this steel would
require a precise control of heat input and welding parametersand
correct selection of welding electrodes.

Generally there's no electrodes of exact matching
chemistry for this steel. However if I have to make a choice , the preference
would be either E-9018/10018/11018M SMAW electrodes and matching GTAW,
GMAW and SAW filer depending on the process and extent of
fabrication involved.

Many fabricators may prefer E-9018/10018/11018G
(General Low Alloy Steel) electrodes, but if the desired chemistry is specified

beforehand,so thatthere would not be any later

surprises?

What's the design code ? For fabricating A-517 steel
one has to incorporate strictly the design code
requirements.

Let me know if the attached information helps you or
not?.

Thanks.


Pradip Goswami,P.Eng.
Welding & Metallurgical Specialist
& Consultant

Email-p...@sympatico.ca,
pgos...@quickclic.net

PREM S NAUTIYAL
CELL : 9769316004

[kianoosh zarrin naghsh]

Dear Pradip, Thanks for your help, but now, I want to know, is there any requirement to use postheating or slow cooling down by a heat resistant blanket such as asbestos after welding of A517 steel?   Thanks. Kianoush Zarrin naghsh. --- On Sun, 10/24/10, pgoswami <pgos...@quickclic.net> wrote: