There is no SA-242 –The S indicates that the material is included in ASME Section II and has ASME Code allowable stresses in Sc II Part D. ASTM A-242 is not included in QW-422 and therefore is an “Unassigned Metal” per ASME Section IX (See QW-424) and does not have a P-No. Because it is unassigned all welds must be separately qualified: i.e. unassigned to unassigned, unassigned to P-No 1, unassigned to P-No 2, etc.
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Pradeep Sawant
Sent: Thursday, February 17, 2011 11:23 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:9919] Corten & carbon Steel weldability
Dear,
P no 1 and equivalent SA 242 for welding choose SFA 5.29 W cu content wire In FCAW.(E81T1W2)
Regards
Pradeep
From: Zakaria ghrab <zakaria.ghrab@gmail.com>
To: materials-welding@googlegroups.com
Sent: Thu, 17 February, 2011 9:14:27 PM
Subject: [MW:9916] Corten & carbon Steel weldability
Hi all,
I need to know the P number of corten steels, i have on PQR according ASME sect IX corten to corten, i need to use it to prepare WPS for Carbon steels but i have doute Corten is PN°1 or PN°3, serashing in internet : Equivalent Corten is ASTM SA 242, is it true?
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GHRAB Zakaria
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