Re: [MW:18896] Welding of CuNi 70/30 to SA106

For welding CU NI to Carbon steel

ERNiCu-7 (N04060)

Steel side may be       overlayed first with       SFA 5,7   ERNi-1 or       SFA 5.14 ERNiCu-7

 

The 70-30 Cu-Ni welds have a limited tolerance for dilution by iron. Welds with more than about

10% iron tend to have excessive fissures and develop hot cracks. The ENiCu-7 and ERNiCu-7

fillers (65Ni-Cu) have a higher tolerance for iron and are used in joining Cu Ni to carbon steels.

Often a very useful step in making Cu-Ni dissimilar metal welds is to overlay or butter the other

metal with nickel, nickel-copper or any other appropriate filler wire. In applying Cu-Ni overlays on

steel, the usual practice is to apply a first layer with ERNi-1 or ERNiCu-7 and then ERCuNi for

subsequent layers. 

Sridhar

---

From: prabhu <prabhujeetnikam@gmail.com>
To: materials-welding@googlegroups.com
Sent: Wednesday, 9 October 2013 9:08 AM
Subject: [MW:18886] Welding of CuNi 70/30 to SA106

Dear All,

Can anyone tell me which filler should be used for welding CuNi 70/30 to SA106. by using GTAW process.

--
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/
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.
For more options, visit https://groups.google.com/groups/opt_out.