RE: [MW:24179] can use P15E wps for P5B

If your fabrication is governed by ASME Boiler and Pressure Vessel Code the answer is unequivocally NO.  You need to perform a qualification with P5B and P8 materials. 

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of JIJILAL K M
Sent: Wednesday, January 27, 2016 2:38 AM
To: materials-welding@googlegroups.com
Subject: [MW:24176] can use P15E wps for P5B

 

Dear Experts,

 

We've to weld 4" x 6.02 mm  HRSG boiler piping joints (only 2 nos.).

 

Materials are   P5B + P8   ( ASTM A335 P5 + ASTM 304L SS) .

 

There is no such qualified  WPS.

 

instead we've a Qualified WPS  for P15E + P8   ( ASTM A335 P91+ ASTM 358  316L SS) .  

 

Can we use this WPS using filler wire ER-309?

 

JIJILAL K.M. 

 

 

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