Tuesday, May 15, 2012

Re: [MW:14273] For dissimilar weld CS to SS (pipe)309 L for GTAW process for welding root purging required

If you have not access to the root in order to clean eventual sugaring or burn-through, then you need backing gas and not only shielding

best regards

Dr. Georgios Dilintas

Authorized Nuclear Inspector
Authorized Inspector Supervisor
API 510 Inspector

I&F REGIONAL TECHNICAL MANAGER
BUREAU VERITAS PIRAEUS - GREECE
Tel: +30 210 40 63 113/4
Fax: +30 210 40 63 118
Cell: +30 69 44 64 62 04
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