Applicable Code is ASME SEC IX.
-- Impact test not required.
On Mon, Jan 23, 2012 at 12:49 PM, james gerald <gerry_tup@yahoo.com> wrote:
--Please give the detail of the applicable code and whether Impact test is required based on MDMT
Thanks & Regards J.Gerald Jayakumar 0091-9344954677
Sent: Saturday, January 21, 2012 7:55 PM
Subject: [MW:13536] REGARDING PWHT of STORAGE TANK CLEAN OUT DOOR.
--Dear All,I intended to use the following WPS for storage tank clean out door welding :Test coupon thickness - 40 mm.Material - SA 516 Gr 70Welding process - SMAW.Electrode - E 7018-1PWHT Temperature - 620 - 650 degree centigrade.Soaking time - 180 minutes.Rate of heating - 130 Degree centigrade.Rate of heating - 130 Degree centigrade.Storage tank detail:Shell thickness - 18 mmAnnular plate thickness - 20 mmClean out door neck - 18 mmClean out door flange - 20 mmMaterial - SA 516 Gr 70Welding process - SMAWElectrode - E 7018 -1Stress relieving temp - 620 - 650 degree centigrade.Soaking time - 60 minutes.Rate of heating - 150 - 200 Degree centigrade.Rate of heating - 150 - 200 Degree centigradeMy doubt is whether the soaking time in the PQR is acceptable or I have to qualify another WPS.Thanks in advance.Manoj
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