Dear sir.
Postbending heat treatment is required when the maximum calculated fiber elongation after bending exceeds 50% of the specified basic min. elongation for the applicable material according to para. 332.4.2 of ASME B31.3.
Please let me know how to calculate fiber...
PWHT holding temperature are specified as below:
P No. Applicable Code Temperature(degree C)
------------------------------------------------------------
P No.1 ASME Sect.8-2001 edition Min. 593
P No.1 ASME Sect.8-2004 Min. 650*(changed)
P No.1 ASME B31.3-2004 594~649...
I have mis-typing in my previous query.
Please read as follows:
para.331.1.3(b) to 331.1.3(b)(2) and
331.1.3(c) to 331.1.3(b)(3)
CODE interpretation is different between two gentlemen.
Any other opinion who has.
Thanks
woo-ill ihm
Mr.metengr,
Thank you for your comment.
as your comment,Welding condition of P91 to 50Cr-50Ni support with filler metal, ERNiCr-3, does not meet the requirement of para.331.1.3(b), but conforms to the para.331.1.3(c)
If PWHT is required accoring to the para.331.1.3(b)as you commented, it...
Heater tube, A 335 P91(P-NO. 5B) to pipe support of A 560 50Cr-50Ni-Cb has been completed with non-hardened filler metal, ERNiCr-3, and proper preheating according to the applicable Code ASME B31.3
I would like to know for the following question:
First, My interpretation is correct that...
