Hi Deepak,
See the comparison of base metal and sugegsted welding electrodes below. Weld metal does not contain "W", which is in the chemistry of Super Duplex S32760."W" have very high effect on resitance to pitting corrosion. The base metal which you intend to use is matching to the chemistry of Zeron-100 (see the attached booklet).
The sandvik consumable is compatible to Super Duplex S32750 not S32760 (since it does not contain W).
The end result is what's the application??. If the sandvik welding consumable passes all the required tests, ASME Sec-IX and ASTM Pitting Corrosion /Intergranular corrosion Tests, then it may be used provided it's acceptable to your client.
However if the service requirements are very demanding then the welding consumable matching exactly to the base metal or or superior corrosion resistance properties would be recomemnded.This shall be the first selection under most ideal conditons.
I hope it would clarify your doubt.
Thanks
Pradip Goswami,P.Eng,IWE
Welding & Metallurgical Specialist & Consultant
Email-pgoswami@sympatico.ca,
ASME Sec-II ,Part C, SFA -5.4 extracts.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of DEEPAK KUMAR
Sent: Saturday, December 04, 2010 12:24 AM
To: materials-welding@googlegroups.com
Subject: [MW:8504] Super Duplex
Dear Sir ,
Kindly confirm,
For attached data sheet for the Welding Electrode for super dupplex Material pipe spec sheet attached.
Please confirm , if welding electrode is suitable for the pipe material .
Deepak Kumar
Mech Engg.
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