Wednesday, February 15, 2012

[MW:13694] Re: Acceptance Criteria For Chemical Contents Inconel 625 Overlay

Dear Budi

Its very difficult to achive the stip chemical chemistry by single
layer cladding due to the dilution of the base metal.
during welding you are forming a cast, which have chemistry like a
casting, then as u said, u have taken the CA 3 mm away from the fusion
line, this will not help you as u required.
You may consult the supplier for a strip electrode, which can produce
a required chemistry as per standard requirement with combination of
flux.

regards
Sandeep Kumar

On Feb 14, 6:40 pm, budi.witjaks...@profab-group.com wrote:
> Dear Colleague,
> We do overlay inconel 625 with single layer strip cladding electroslag welding however the chemical contents on weld deposit taken from 3 mm from fusion line does not comply exactly to the chemical composition of Inconel 625.
> I have checked the weld deposit chemical composition data from the strip cladding supplier also does not exactly comply to Inconel 625.
> Is anyone can tell me what is the chemical composition acceptance criteria for Inconel 625?
> Is it correct the weld deposit chemical contents for inconel 625 overlay should conform to ASTM B424 UNS N08825 instead of Inconel 625? If yes, is there any reference standard I can refer to?
> Regards,
>
> Budi Witjaksono

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