[MW:7004] RE: 6999] ASME SEC IX Code Issue

No  - Per QW-406.3 WPS maximum permitted is PQR value + 55C.  Therefore WPS IP max = 140C + 55C  =  195C

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of limesh M
Sent: Tuesday, September 14, 2010 7:43 AM
To: materials-welding@googlegroups.com
Subject: [MW:6999] ASME SEC IX Code Issue

 

Dear All,

Design Code: ASME B31.3     Welding Code: ASME SEC IX

I have a Low temperature carbon steel impact tested PQR with a PWHT range of 600⁰±10⁰C.Is this condition giving an exemption for me on QW406.3 to prepare a WPS with maximum interpass temperature of 200⁰C.

Maximum interpass temperature observed during specimen welding: 140⁰C

 

Regards,

 

Limesh

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