did you preheat?
maybe a lot of heat sink and rapid cooling on first pass
best regards
Dr. Georgios Dilintas
Authorized Nuclear Inspector
Authorized Inspector Supervisor
I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS PIRAEUS - GREECE
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Gopalakrishnan G ---14/06/2015 09:31:10---what s ur joint design? if it is double bevel whether 1/2 on both sides or 2/3 & 1/3 ? preheat tempe
From: Gopalakrishnan G <gopal2408@gmail.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: 14/06/2015 09:31
Subject: Re: [MW:23071] centreline crack
Sent by: materials-welding@googlegroups.com
what s ur joint design? if it is double bevel whether 1/2 on both sides or 2/3 & 1/3 ? preheat temperature?
On Sat, Jun 13, 2015 at 11:02 AM, Gigin Gumilar <giginsg@gmail.com> wrote:
- Dear expert,
Any suggestion to prevent centreline crack? i was found centreline crack exist on the first run/layer after backgouging.
base material is S355JR 50mm thick with joint configuration double bevel tee joint full-pen weld by SAW.
Thank you for your help
Rgds,
Gigin
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G.Gopalakrishnan
Welding Engineer
Mukand Ltd
Mumbai
Moble :+91-9833397917
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