Dear Mr.Pradip,
-- Is anything wrong in accepting more diluted weld deposition with the consideration of application ?
For example if our weld metal chemistry is meeting the requirement of Inconel 825 (weld overlay with Inconel 625) which satisfy the application condition without any failure.
Is there any test to confirm this ?
Rinshad
On Wed, Feb 15, 2012 at 7:23 AM, pgoswami <pgoswami@quickclic.net> wrote:
Hi Budi,The weld deposit should meet C.A requirements of AWS/ASME SFA 5.14(see below). If I could re-collect from the past experiences, meeting C.A in single pass ESSC could be a problem(see the attachment).Fe dilution is always a problem in the first pass.It would be a good point to discuss the issue with the consumable supplier prior hand and resort to multipasses, if there're severe restrictions on Fe dilution in 625 overlay.See the link for the soudometal product catalogue for SAWSC and ESSSC.The attachment is a page extracted from this document.What is the design code? By any chance does the C.A of the deposit has to conform to API Spec, 5LD??Appreciate your feedback.Thanks.Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist & Consultant
Ontario, Canada.
Nb
(Cb)
Other
AWS Classification
mUNS Number
C
Mn
Fe
P
S
Si
Cu
Ni
dCo
Al
Ti
Cr
plus
Ta
Mo
V
W
Elements,
Total
On Tue, Feb 14, 2012 at 7:10 PM, <budi.witjaksono@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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