Use E 309 MoL.
Regards
Prem Nautiyal
Sent from Samsung Mobile
-------- Original message --------
From: Pravin G
Date:10/03/2016 9:56 PM (GMT-05:00)
To: 'Agustin Jimenez' via Materials & Welding
Subject: [MW:24479] Dissimilar welding
Recently we qualify new PQR with following variables:
Material: A516 Gr 70N to A204 TP316L [P1G2 - P8G1]
Thickness: 50mm
Joint: butt joint
Consumable: SMAW, E309L-16, 3.2mm
F No: 5, A no: 8
I did preheat before welding for both material, correct me I'm wrong.
Preheat & PWHT required for dissimilar welding?
Crack recognized immediately after welding, so I assume its hot crack.
Is it related to thermal expansion of CS which cause hot crack?
Kindly advise me how to overcome this defect?
Pravin Poornachandran
Sent from my iPhone
--
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
To post to this group, send email to materials-welding@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/57C197FD-83D6-43DF-8437-78B1AD666276%40gmail.com.
For more options, visit https://groups.google.com/d/optout.
No comments:
Post a Comment