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Re: [MW:28480] Monel400 weld overlay on carbon steel

By Materials & Welding
Hi!
For Monel NiCu7 overlay on CS/LAS no need of any barrier layer you can directly weld NiCu7 on
CS/LAS base as it is comparable while as CuNi7( Cupronickel) is not comparable with CS/LAS) so not recommended to use as barrier layer

Ni1 is used as barrier layer for Monel overlay on CS/LAS for thiner base metal/nozzle pipe to avoid effect of dilution where Fe to be controlled below 2% in undiluted chemistry at closer to the fusion line as possible

Regards
Hegde P.B.

 
On Monday, 22 October, 2018, 12:53:49 PM IST, P.K.Pal <palpk07@gmail.com> wrote:


Due to Fe content problem, whether, it will be better to use ER Cu Ni deposit as barrier layer and then weld deposition with ERNiCu7 ?

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