simulated post-weld heat treatment (SPWHT)
simulated post-weld heat treatment (SPWHT)
(OP)
Please share your thoughts herein,
How is SPWHT done? ٌWhat is the exact need for SPWHT at plate mill?
How is SPWHT done? ٌWhat is the exact need for SPWHT at plate mill?





RE: simulated post-weld heat treatment (SPWHT)
For example: Say materials is Cr-Mo-V steel PWHT envisaged as the design code is 4 hrs. Fabricator foresees the problems,and anticipates that there would at least one or 2 Full fledged repair cycle even after PWHT. So with additional 2 cycles(8 hrs) of PWHT what should be the mechanical properties? One may ask those information from the mill to be verified prior to delivery.
However it comes with a cost and may delay the delivery.
Requirements are specified in ASME Sec-II,Part-A,,SA-20, Supplementary Clause S3
Thanks.
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
All provided answer are personal opinions or personal judgements only. It's not connected with any employers by any means.
RE: simulated post-weld heat treatment (SPWHT)
RE: simulated post-weld heat treatment (SPWHT)
SPWHT is required in the scope of ASME VIII/1 and VIII/2 – see HEAT TREATMENT OF TEST SPECIMENS (UCS-85 and 3.10.2).
Regards - Juergen
RE: simulated post-weld heat treatment (SPWHT)
-Design and Construction Code
-Any additional design conditions imposed, client/project specifications
-Materials of Construction, and thickness(thicker materials may have anistropy and simulation HT is generally called for to safeguard the integrity of the products)
-Design Temperature Envelope(i.e the design temperature of the components being fabricated.
Could you please elaborate the above requirements.
Thanks
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299
All provided answer are personal opinions or personal judgements only. It's not connected with any employers by any means.