| Gents, Please see attached the specs from Esab for these 2 electrodes. You will note that - the Ferrite content no. FN range is different for -16 and -17 grades - tensile strength is less for -17 - charpy values differ. So, they are not identical in chemical and mechanical properties. I would say a re-qualification would be required.
Best regards, Shashank Vagal
--- On Thu, 1/3/12, Peyman Hafezi <peymanhafezi@gmail.com> wrote:
From: Peyman Hafezi <peymanhafezi@gmail.com>
Subject: [MW:13799] using E308H-17 instead of E308H-16
To: materials-welding@googlegroups.com
Date: Thursday, 1 March, 2012, 5:48 PM
Dear friends We have a WPS for welding 321-SS base metal with ER 308h+E 308h-16 which is approved by PQR but the matter is non-availability of E308H-16 and we would like to use E308H-17 instead. There is no mechanical and chemical difference between these two according to ASME Sec II Part C, the only difference is in cover composition that makes -17 better for fillet welds in comparison with -16. But the question remains because our joint is groove and not fillet. What's your opinion? Could -17 be used for groove welding instead of -16 ( without need of a new WPS and PQR) ? -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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