Thursday, April 15, 2010

[MW:4847] RE: 4843] Ar purge for Low Alloy steel

To avoid oxidation especially for Cr-Mo steels.


-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of qaqcmpm
Sent: 15 April 2010 06:58
To: Materials & Welding
Subject: [MW:4843] Ar purge for Low Alloy steel

One of our client specn asks for argon purging of root pass (pressure
retaining welds) for GTAW for Low alloy Cr-Mo steel? why it is
required any idea?

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