Martin,
I seems that you are welding Bisalloy 80. So, because of the risk of stress relieve cracking PWHT should not be undertaken unless it is absolutely necessary. However if it is really unavoidable, PWHT should not exceed the tempering temperature and before stress relieve is applied, the toe of the weld should be blend by grinding in order to minimise occurrence of stress relieve cracking.
Hope it helps
Ariel
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Martin Prad
Sent: Friday, 6 April 2012 6:52 PM
To: materials-welding@googlegroups.com
Subject: RE: [MW:14072] RE: 14069] PWHT of a seam welded with rutile wire
It is a low alloy medium tensile steel welded with E81T1 flux cored tubular wire. Can generally the weld seams welded with this type of wires be stress releived? Is the any unforeseen issues on behind of it?
From: ariel@iinet.net.au
To: materials-welding@googlegroups.com
Subject: [MW:14071] RE: 14069] PWHT of a seam welded with rutile wire
Date: Fri, 6 Apr 2012 15:36:43 +0800
Martin
Rutile flux is used to weld mild steel and is very ductile so no PWHT is usually required. In what type of wire was it in, and what type of steel was it used on?
Ariel
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Martin Prad
Sent: Friday, 6 April 2012 2:02 PM
To: materials-welding@googlegroups.com
Subject: [MW:14069] PWHT of a seam welded with rutile wire
Friends,
Have you faced with any issues after PWHT of a weld seam welded with rutile type Flux Cored wedling wire?
regards,
Martin.
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