Yes dear it is applicable as IS 2062 is equivalent to A36, 2ndly PWHT is required for the NPS 12, the stress relief shall be
carried out within a temperature range of 600°C – 650°C (1100°F – 1200°F) (see 5.7.4.3 for quenched and tempered materials)
for 1 hour per 25 mm (1 in.) of shell thickness. The assembly shall include the bottom reinforcing plate (or annular plate) and the
flange-to-neck weld. Also verify it from WPS requirement.
Peter
Welding Engineer
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Makrand Sakpal
Sent: Monday, April 13, 2015 9:51 AM
To: materials-welding@googlegroups.com
Subject: [MW:23080] IS 2062 Gr. A & B - PWHT for storage tank
Dear all,
I am using IS 2062 Gr. A & B material for tank construction with A 106 Gr. B material for nozzles. Please let me know is clause number 5.7.4.2 of API 650 is applicable here? Shall I do PWHT for all opening connections (nozzles) NPS 12 or larger in nominal diameter?
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