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Dear Siva
Attaching the How the PQR of CrMoV and CrMo material is qualified with tests and PWHT require to be qualified. Which may help you Test require for 2.25Cr 1Mo and CrMoV are same only PWHT temp is different i.e. For CrMo generaly it is 690 C and For CrMo V it is kept 700-705 Also refer ASME Sec VIII Div I mandatory eppendix 31 Regards Hegde P.B. +91 8805593046
--- On Sun, 18/3/12, Siva Kumar <mailmrsiva@yahoo.com> wrote:
From: Siva Kumar <mailmrsiva@yahoo.com>
Subject: [MW:13916] Clarification on Step Cooling Test
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: Sunday, 18 March, 2012, 9:30 AM
Dear Experts, We need to make a manifold for heater of size 60" and 40" diameter of P22 material. It has been decided to use A387 plate for making the manifold. 1. Can anyone give details of What is Step Cooling test connected with this material and what are the requirements of the step cooling test relating to qualification of WPS/PQR. 2.Can we use ER90B3 and E9018B3. Also the Joint configuraiton is Double V groove with backgouging as per client requirements. 3.How much length of plate to be used for preparing the PQR to perform the step cooling test. 4. Further, we have a extruded branch connection of size 4", 5" and 6" of material A 335 Gr.P9, thickness around 7.11. What electrode can we use for this purpose? Do we need to perform the same Step cooling test for this WPS/PQR? Kindly suggest. Thanks and regards, Siva -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at
http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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